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PyQtGraph release 0.10.0

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Luke Campagnola 2016-11-04 22:47:56 -07:00
commit 1426e334e1
156 changed files with 5993 additions and 2020 deletions
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19
.coveragerc Normal file
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@ -0,0 +1,19 @@
[run]
source = pyqtgraph
branch = True
[report]
omit =
*/python?.?/*
*/site-packages/nose/*
*test*
*/__pycache__/*
*.pyc
exclude_lines =
pragma: no cover
def __repr__
if self\.debug
raise AssertionError
raise NotImplementedError
if 0:
if __name__ == .__main__.:
ignore_errors = True

110
.gitignore vendored
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@ -1,9 +1,109 @@
__pycache__
build
*.pyc
# Byte-compiled / optimized / DLL files
__pycache__/
*.py[cod]
# C extensions
*.so
# Distribution / packaging
.Python
env/
bin/
build/
develop-eggs/
dist/
eggs/
lib/
lib64/
parts/
sdist/
var/
*.egg-info/
.installed.cfg
*.egg
doc/_build
# PyInstaller
# Usually these files are written by a python script from a template
# before PyInstaller builds the exe, so as to inject date/other infos into it.
*.manifest
*.spec
# Installer logs
pip-log.txt
pip-delete-this-directory.txt
# Unit test / coverage reports
htmlcov/
.tox/
cover/
.coverage
.cache
nosetests.xml
coverage.xml
.coverage.*
# Translations
*.mo
*.pot
# Mr Developer
.mr.developer.cfg
.project
.pydevproject
# Rope
.ropeproject
# Django stuff:
*.log
*.pot
# Sphinx documentation
docs/_build/
#mac
.DS_Store
*~
#vim
*.swp
#pycharm
.idea/*
#Dolphin browser files
.directory/
.directory
#Binary data files
*.volume
*.am
*.tiff
*.tif
*.dat
*.DAT
#generated documntation files
doc/resource/api/generated/
# Enaml
__enamlcache__/
# PyBuilder
target/
# sphinx docs
generated/
MANIFEST
deb_build
dist
.idea
rtr.cvs
# pytest parallel
.coverage
# ctags
.tags*

136
.travis.yml
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@ -1,5 +1,5 @@
language: python
sudo: false
# Credit: Original .travis.yml lifted from VisPy
# Here we use anaconda for 2.6 and 3.3, since it provides the simplest
@ -17,25 +17,21 @@ env:
# Enable python 2 and python 3 builds
# Note that the 2.6 build doesn't get flake8, and runs old versions of
# Pyglet and GLFW to make sure we deal with those correctly
#- PYTHON=2.6 QT=pyqt TEST=standard
- PYTHON=2.7 QT=pyqt TEST=extra
- PYTHON=2.6 QT=pyqt4 TEST=standard
- PYTHON=2.7 QT=pyqt4 TEST=extra
- PYTHON=2.7 QT=pyside TEST=standard
- PYTHON=3.2 QT=pyqt TEST=standard
- PYTHON=3.2 QT=pyside TEST=standard
- PYTHON=3.4 QT=pyqt5 TEST=standard
# - PYTHON=3.4 QT=pyside TEST=standard # pyside isn't available for 3.4 with conda
#- PYTHON=3.2 QT=pyqt5 TEST=standard
before_install:
- TRAVIS_DIR=`pwd`
- travis_retry sudo apt-get update;
# - if [ "${PYTHON}" != "2.7" ]; then
# wget http://repo.continuum.io/miniconda/Miniconda-2.2.2-Linux-x86_64.sh -O miniconda.sh &&
# chmod +x miniconda.sh &&
# ./miniconda.sh -b &&
# export PATH=/home/$USER/anaconda/bin:$PATH &&
# conda update --yes conda &&
# travis_retry sudo apt-get -qq -y install libgl1-mesa-dri;
# fi;
- if [ ${TRAVIS_PYTHON_VERSION:0:1} == "2" ]; then wget http://repo.continuum.io/miniconda/Miniconda-3.5.5-Linux-x86_64.sh -O miniconda.sh; else wget http://repo.continuum.io/miniconda/Miniconda3-3.5.5-Linux-x86_64.sh -O miniconda.sh; fi
- chmod +x miniconda.sh
- ./miniconda.sh -b -p /home/travis/mc
- export PATH=/home/travis/mc/bin:$PATH
# not sure what is if block is for
- if [ "${TRAVIS_PULL_REQUEST}" != "false" ]; then
GIT_TARGET_EXTRA="+refs/heads/${TRAVIS_BRANCH}";
GIT_SOURCE_EXTRA="+refs/pull/${TRAVIS_PULL_REQUEST}/merge";
@ -51,60 +47,31 @@ before_install:
- echo ${GIT_SOURCE_EXTRA}
install:
# Dependencies
- if [ "${PYTHON}" == "2.7" ]; then
travis_retry sudo apt-get -qq -y install python-numpy &&
export PIP=pip &&
sudo ${PIP} install pytest &&
sudo ${PIP} install flake8 &&
export PYTEST=py.test;
else
travis_retry sudo apt-get -qq -y install python3-numpy &&
curl http://python-distribute.org/distribute_setup.py | sudo python3 &&
curl https://raw.github.com/pypa/pip/master/contrib/get-pip.py | sudo python3 &&
export PIP=pip3.2 &&
sudo ${PIP} install pytest &&
sudo ${PIP} install flake8 &&
export PYTEST=py.test-3.2;
fi;
- export GIT_FULL_HASH=`git rev-parse HEAD`
- conda update conda --yes
- conda create -n test_env python=${PYTHON} --yes
- source activate test_env
- conda install numpy pyopengl pytest flake8 six coverage --yes
- echo ${QT}
- echo ${TEST}
- echo ${PYTHON}
# Qt
- if [ "${PYTHON}" == "2.7" ]; then
if [ ${QT} == 'pyqt' ]; then
travis_retry sudo apt-get -qq -y install python-qt4 python-qt4-gl;
else
travis_retry sudo apt-get -qq -y install python-pyside.qtcore python-pyside.qtgui python-pyside.qtsvg python-pyside.qtopengl;
fi;
elif [ "${PYTHON}" == "3.2" ]; then
if [ ${QT} == 'pyqt' ]; then
travis_retry sudo apt-get -qq -y install python3-pyqt4;
elif [ ${QT} == 'pyside' ]; then
travis_retry sudo apt-get -qq -y install python3-pyside;
else
${PIP} search PyQt5;
${PIP} install PyQt5;
cat /home/travis/.pip/pip.log;
fi;
else
conda create -n testenv --yes --quiet pip python=$PYTHON &&
source activate testenv &&
if [ ${QT} == 'pyqt' ]; then
conda install --yes --quiet pyside;
else
conda install --yes --quiet pyside;
fi;
- if [ "${QT}" == "pyqt5" ]; then
conda install pyqt --yes;
fi;
# Install PyOpenGL
- if [ "${PYTHON}" == "2.7" ]; then
echo "Using OpenGL stable version (apt)";
travis_retry sudo apt-get -qq -y install python-opengl;
else
echo "Using OpenGL stable version (pip)";
${PIP} install -q PyOpenGL;
cat /home/travis/.pip/pip.log;
- if [ "${QT}" == "pyqt4" ]; then
conda install pyqt=4 --yes;
fi;
- if [ "${QT}" == "pyside" ]; then
conda install pyside --yes;
fi;
- pip install pytest-xdist # multi-thread py.test
- pip install pytest-cov # add coverage stats
# required for example testing on python 2.6
- if [ "${PYTHON}" == "2.6" ]; then
pip install importlib;
fi;
# Debugging helpers
- uname -a
@ -114,23 +81,18 @@ install:
else
python3 --version;
fi;
- apt-cache search python3-pyqt
- apt-cache search python3-pyside
- apt-cache search pytest
- apt-cache search python pip
- apt-cache search python qt5
before_script:
# We need to create a (fake) display on Travis, let's use a funny resolution
- export DISPLAY=:99.0
- "sh -e /etc/init.d/xvfb start"
- /sbin/start-stop-daemon --start --quiet --pidfile /tmp/custom_xvfb_99.pid --make-pidfile --background --exec /usr/bin/Xvfb -- :99 -screen 0 1400x900x24 -ac +extension GLX +render
# Make sure everyone uses the correct python
- mkdir ~/bin && ln -s `which python${PYTHON}` ~/bin/python
- export PATH=/home/travis/bin:$PATH
# Make sure everyone uses the correct python (this is handled by conda)
- which python
- python --version
- pwd
- ls
# Help color output from each test
- RESET='\033[0m';
RED='\033[00;31m';
@ -172,16 +134,19 @@ before_script:
fi;
fi;
- cd $TRAVIS_DIR
script:
- source activate test_env
# Check system info
- python -c "import pyqtgraph as pg; pg.systemInfo()"
# Run unit tests
- start_test "unit tests";
PYTHONPATH=. ${PYTEST} pyqtgraph/;
PYTHONPATH=. py.test --cov pyqtgraph -sv;
check_output "unit tests";
- echo "test script finished. Current directory:"
- pwd
# check line endings
- if [ "${TEST}" == "extra" ]; then
@ -208,17 +173,15 @@ script:
check_output "style check";
fi;
- cd $TRAVIS_DIR
# Check install works
- start_test "install test";
sudo python${PYTHON} setup.py --quiet install;
python setup.py --quiet install;
check_output "install test";
# Check double-install fails
# Note the bash -c is because travis strips off the ! otherwise.
- start_test "double install test";
bash -c "! sudo python${PYTHON} setup.py --quiet install";
bash -c "! python setup.py --quiet install";
check_output "double install test";
# Check we can import pg
@ -227,4 +190,9 @@ script:
cd /; echo "import pyqtgraph.examples" | python;
check_output "import test";
after_success:
- cd /home/travis/build/pyqtgraph/pyqtgraph
- pip install codecov --upgrade # add coverage integration service
- codecov
- pip install coveralls --upgrade # add another coverage integration service
- coveralls

56
CHANGELOG
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@ -1,3 +1,59 @@
pyqtgraph-0.10.0
New Features:
- PyQt5 support
- Options for interpreting image data as either row-major or col-major
- InfiniteLine and LinearRegionItem can have attached labels
- DockArea:
- Dock titles can be changed after creation
- Added Dock.sigClosed
- Added TextItem.setColor()
- FillBetweenItem supports finite-connected curves (those that exclude nan/inf)
API / behavior changes:
- Improved ImageItem performance for some data types by scaling LUT instead of image
- Change the defaut color kwarg to None in TextItem.setText() to avoid changing
the color every time the text is changed.
- FFT plots skip first sample if x-axis uses log scaling
- Multiprocessing system adds bytes and unicode to the default list of no-proxy data types
- Version number scheme changed to be PEP440-compliant (only affects installations from non-
release git commits)
Bugfixes:
- Fix for numpy API change that caused casting errors for inplace operations
- Fixed git version string generation on python3
- Fixed setting default values for out-of-bound points in pg.interpolateArray
- Fixed plot downsampling bug on python 3
- Fixed invalid slice in ImageItem.getHistogram
- DockArea:
- Fixed adding Docks to DockArea after all Docks have been removed
- Fixed DockArea save/restoreState when area is empty
- Properly remove select box when export dialog is closed using window decorations
- Remove all modifications to python builtins
- Better Python 2.6 compatibility
- Fix SpinBox decimals
- Fixed numerous issues with ImageItem automatic downsampling
- Fixed PlotItem average curves using incorrect stepMode
- Fixed TableWidget eating key events
- Prevent redundant updating of flowchart nodes with multiple inputs
- Ignore wheel events in GraphicsView if mouse interaction is disabled
- Correctly pass calls to QWidget.close() up the inheritance chain
- ColorMap forces color inputs to be sorted
- Fixed memory mapping for RemoteGraphicsView in OSX
- Fixed QPropertyAnimation str/bytes handling
- Fixed __version__ string update when using `setup.py install` with newer setuptools
Maintenance:
- Image comparison system for unit testing plus tests for several graphics items
- Travis CI and coveralls/codecov support
- Add examples to unit tests
pyqtgraph-0.9.10
Fixed installation issues with more recent pip versions.
pyqtgraph-0.9.9
API / behavior changes:

9
CONTRIBUTING.txt
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@ -49,3 +49,12 @@ Please use the following guidelines when preparing changes:
QObject subclasses that implement new signals should also describe
these in a similar table.
* Setting up a test environment.
Tests for a module should ideally cover all code in that module,
i.e., statement coverage should be at 100%.
To measure the test coverage, install py.test, pytest-cov and pytest-xdist.
Then run 'py.test --cov -n 4' to run the test suite with coverage on 4 cores.

9
README.md
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@ -1,3 +1,6 @@
[![Build Status](https://travis-ci.org/pyqtgraph/pyqtgraph.svg?branch=develop)](https://travis-ci.org/pyqtgraph/pyqtgraph)
[![codecov.io](http://codecov.io/github/pyqtgraph/pyqtgraph/coverage.svg?branch=develop)](http://codecov.io/github/pyqtgraph/pyqtgraph?branch=develop)
PyQtGraph
=========
@ -33,11 +36,15 @@ Contributors
* Nicholas TJ
* John David Reaver
* David Kaplan
* Martin Fitzpatrick
* Daniel Lidstrom
* Eric Dill
* Vincent LeSaux
Requirements
------------
* PyQt 4.7+ or PySide
* PyQt 4.7+, PySide, or PyQt5
* python 2.6, 2.7, or 3.x
* NumPy
* For 3D graphics: pyopengl and qt-opengl

4
doc/listmissing.py
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@ -9,6 +9,6 @@ path = os.path.join(os.path.dirname(os.path.abspath(__file__)), '..')
for a, b in dirs:
rst = [os.path.splitext(x)[0].lower() for x in os.listdir(os.path.join(path, 'documentation', 'source', a))]
py = [os.path.splitext(x)[0].lower() for x in os.listdir(os.path.join(path, b))]
print a
print(a)
for x in set(py) - set(rst):
print " ", x
print( " ", x)

1
doc/source/apireference.rst
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@ -6,6 +6,7 @@ Contents:
.. toctree::
:maxdepth: 2
config_options
functions
graphicsItems/index
widgets/index

4
doc/source/conf.py
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@ -50,9 +50,9 @@ copyright = '2011, Luke Campagnola'
# built documents.
#
# The short X.Y version.
version = '0.9.10'
version = '0.10.0'
# The full version, including alpha/beta/rc tags.
release = '0.9.10'
release = '0.10.0'
# The language for content autogenerated by Sphinx. Refer to documentation
# for a list of supported languages.

41
doc/source/config_options.rst Normal file
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@ -0,0 +1,41 @@
.. currentmodule:: pyqtgraph
.. _apiref_config:
Global Configuration Options
============================
PyQtGraph has several global configuration options that allow you to change its
default behavior. These can be accessed using the :func:`setConfigOptions` and
:func:`getConfigOption` functions:
================== =================== ================== ================================================================================
**Option** **Type** **Default**
leftButtonPan bool True If True, dragging the left mouse button over a ViewBox
causes the view to be panned. If False, then dragging
the left mouse button draws a rectangle that the
ViewBox will zoom to.
foreground See :func:`mkColor` 'd' Default foreground color for text, lines, axes, etc.
background See :func:`mkColor` 'k' Default background for :class:`GraphicsView`.
antialias bool False Enabling antialiasing causes lines to be drawn with
smooth edges at the cost of reduced performance.
imageAxisOrder str 'col-major' For 'row-major', image data is expected in the standard row-major
(row, col) order. For 'col-major', image data is expected in
reversed column-major (col, row) order.
The default is 'col-major' for backward compatibility, but this may
change in the future.
editorCommand str or None None Command used to invoke code editor from ConsoleWidget.
exitCleanup bool True Attempt to work around some exit crash bugs in PyQt and PySide.
useWeave bool False Use weave to speed up some operations, if it is available.
weaveDebug bool False Print full error message if weave compile fails.
useOpenGL bool False Enable OpenGL in GraphicsView. This can have unpredictable effects on stability
and performance.
enableExperimental bool False Enable experimental features (the curious can search for this key in the code).
crashWarning bool False If True, print warnings about situations that may result in a crash.
================== =================== ================== ================================================================================
.. autofunction:: pyqtgraph.setConfigOptions
.. autofunction:: pyqtgraph.getConfigOption

2
doc/source/functions.rst
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@ -91,6 +91,8 @@ Mesh Generation Functions
Miscellaneous Functions
-----------------------
.. autofunction:: pyqtgraph.eq
.. autofunction:: pyqtgraph.arrayToQPath
.. autofunction:: pyqtgraph.pseudoScatter

2
doc/source/graphicsItems/make
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@ -23,7 +23,7 @@ ViewBox
VTickGroup""".split('\n')
for f in files:
print f
print(f)
fh = open(f.lower()+'.rst', 'w')
fh.write(
"""%s

55
doc/source/introduction.rst
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@ -6,9 +6,17 @@ Introduction
What is pyqtgraph?
------------------
PyQtGraph is a graphics and user interface library for Python that provides functionality commonly required in engineering and science applications. Its primary goals are 1) to provide fast, interactive graphics for displaying data (plots, video, etc.) and 2) to provide tools to aid in rapid application development (for example, property trees such as used in Qt Designer).
PyQtGraph is a graphics and user interface library for Python that provides
functionality commonly required in engineering and science applications. Its
primary goals are 1) to provide fast, interactive graphics for displaying data
(plots, video, etc.) and 2) to provide tools to aid in rapid application
development (for example, property trees such as used in Qt Designer).
PyQtGraph makes heavy use of the Qt GUI platform (via PyQt or PySide) for its high-performance graphics and numpy for heavy number crunching. In particular, pyqtgraph uses Qt's GraphicsView framework which is a highly capable graphics system on its own; we bring optimized and simplified primitives to this framework to allow data visualization with minimal effort.
PyQtGraph makes heavy use of the Qt GUI platform (via PyQt or PySide) for its
high-performance graphics and numpy for heavy number crunching. In particular,
pyqtgraph uses Qt's GraphicsView framework which is a highly capable graphics
system on its own; we bring optimized and simplified primitives to this
framework to allow data visualization with minimal effort.
It is known to run on Linux, Windows, and OSX
@ -22,10 +30,13 @@ Amongst the core features of pyqtgraph are:
* Fast enough for realtime update of video/plot data
* Interactive scaling/panning, averaging, FFTs, SVG/PNG export
* Widgets for marking/selecting plot regions
* Widgets for marking/selecting image region-of-interest and automatically slicing multi-dimensional image data
* Widgets for marking/selecting image region-of-interest and automatically
slicing multi-dimensional image data
* Framework for building customized image region-of-interest widgets
* Docking system that replaces/complements Qt's dock system to allow more complex (and more predictable) docking arrangements
* ParameterTree widget for rapid prototyping of dynamic interfaces (Similar to the property trees in Qt Designer and many other applications)
* Docking system that replaces/complements Qt's dock system to allow more
complex (and more predictable) docking arrangements
* ParameterTree widget for rapid prototyping of dynamic interfaces (Similar to
the property trees in Qt Designer and many other applications)
.. _examples:
@ -33,19 +44,43 @@ Amongst the core features of pyqtgraph are:
Examples
--------
PyQtGraph includes an extensive set of examples that can be accessed by running::
PyQtGraph includes an extensive set of examples that can be accessed by
running::
import pyqtgraph.examples
pyqtgraph.examples.run()
This will start a launcher with a list of available examples. Select an item from the list to view its source code and double-click an item to run the example.
Or by running ``python examples/`` from the source root.
This will start a launcher with a list of available examples. Select an item
from the list to view its source code and double-click an item to run the
example.
Note If you have installed pyqtgraph with ``python setup.py develop``
then the examples are incorrectly exposed as a top-level module. In this case,
use ``import examples; examples.run()``.
How does it compare to...
-------------------------
* matplotlib: For plotting, pyqtgraph is not nearly as complete/mature as matplotlib, but runs much faster. Matplotlib is more aimed toward making publication-quality graphics, whereas pyqtgraph is intended for use in data acquisition and analysis applications. Matplotlib is more intuitive for matlab programmers; pyqtgraph is more intuitive for python/qt programmers. Matplotlib (to my knowledge) does not include many of pyqtgraph's features such as image interaction, volumetric rendering, parameter trees, flowcharts, etc.
* matplotlib: For plotting, pyqtgraph is not nearly as complete/mature as
matplotlib, but runs much faster. Matplotlib is more aimed toward making
publication-quality graphics, whereas pyqtgraph is intended for use in data
acquisition and analysis applications. Matplotlib is more intuitive for
matlab programmers; pyqtgraph is more intuitive for python/qt programmers.
Matplotlib (to my knowledge) does not include many of pyqtgraph's features
such as image interaction, volumetric rendering, parameter trees,
flowcharts, etc.
* pyqwt5: About as fast as pyqwt5, but not quite as complete for plotting functionality. Image handling in pyqtgraph is much more complete (again, no ROI widgets in qwt). Also, pyqtgraph is written in pure python, so it is more portable than pyqwt, which often lags behind pyqt in development (I originally used pyqwt, but decided it was too much trouble to rely on it as a dependency in my projects). Like matplotlib, pyqwt (to my knowledge) does not include many of pyqtgraph's features such as image interaction, volumetric rendering, parameter trees, flowcharts, etc.
* pyqwt5: About as fast as pyqwt5, but not quite as complete for plotting
functionality. Image handling in pyqtgraph is much more complete (again, no
ROI widgets in qwt). Also, pyqtgraph is written in pure python, so it is
more portable than pyqwt, which often lags behind pyqt in development (I
originally used pyqwt, but decided it was too much trouble to rely on it
as a dependency in my projects). Like matplotlib, pyqwt (to my knowledge)
does not include many of pyqtgraph's features such as image interaction,
volumetric rendering, parameter trees, flowcharts, etc.
(My experience with these libraries is somewhat outdated; please correct me if I am wrong here)
(My experience with these libraries is somewhat outdated; please correct me if
I am wrong here)

2
doc/source/widgets/make
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@ -17,7 +17,7 @@ TreeWidget
VerticalLabel""".split('\n')
for f in files:
print f
print(f)
fh = open(f.lower()+'.rst', 'w')
fh.write(
"""%s

8
doc/source/widgets/rawimagewidget.rst
View File

@ -1,8 +0,0 @@
RawImageWidget
==============
.. autoclass:: pyqtgraph.RawImageWidget
:members:
.. automethod:: pyqtgraph.RawImageWidget.__init__

2
examples/FillBetweenItem.py
View File

@ -8,6 +8,8 @@ import pyqtgraph as pg
from pyqtgraph.Qt import QtGui, QtCore
import numpy as np
#FIXME: When running on Qt5, not as perfect as on Qt4
win = pg.plot()
win.setWindowTitle('pyqtgraph example: FillBetweenItem')
win.setXRange(-10, 10)

2
examples/Flowchart.py
View File

@ -2,7 +2,7 @@
"""
This example demonstrates a very basic use of flowcharts: filter data,
displaying both the input and output of the filter. The behavior of
he filter can be reprogrammed by the user.
the filter can be reprogrammed by the user.
Basic steps are:
- create a flowchart and two plots

6
examples/FlowchartCustomNode.py
View File

@ -89,11 +89,11 @@ class ImageViewNode(Node):
## CtrlNode is just a convenience class that automatically creates its
## control widget based on a simple data structure.
class UnsharpMaskNode(CtrlNode):
"""Return the input data passed through pg.gaussianFilter."""
"""Return the input data passed through an unsharp mask."""
nodeName = "UnsharpMask"
uiTemplate = [
('sigma', 'spin', {'value': 1.0, 'step': 1.0, 'range': [0.0, None]}),
('strength', 'spin', {'value': 1.0, 'dec': True, 'step': 0.5, 'minStep': 0.01, 'range': [0.0, None]}),
('sigma', 'spin', {'value': 1.0, 'step': 1.0, 'bounds': [0.0, None]}),
('strength', 'spin', {'value': 1.0, 'dec': True, 'step': 0.5, 'minStep': 0.01, 'bounds': [0.0, None]}),
]
def __init__(self, name):
## Define the input / output terminals available on this node

2
examples/GradientWidget.py
View File

@ -16,7 +16,7 @@ app = QtGui.QApplication([])
w = QtGui.QMainWindow()
w.show()
w.setWindowTitle('pyqtgraph example: GradientWidget')
w.resize(400,400)
w.setGeometry(10, 50, 400, 400)
cw = QtGui.QWidget()
w.setCentralWidget(cw)

17
examples/ImageView.py
View File

@ -17,6 +17,9 @@ import numpy as np
from pyqtgraph.Qt import QtCore, QtGui
import pyqtgraph as pg
# Interpret image data as row-major instead of col-major
pg.setConfigOptions(imageAxisOrder='row-major')
app = QtGui.QApplication([])
## Create window with ImageView widget
@ -42,12 +45,24 @@ sig[40:] += np.exp(-np.linspace(1,10, 60))
sig[70:] += np.exp(-np.linspace(1,10, 30))
sig = sig[:,np.newaxis,np.newaxis] * 3
data[:,50:60,50:60] += sig
data[:,50:60,30:40] += sig
## Display the data and assign each frame a time value from 1.0 to 3.0
imv.setImage(data, xvals=np.linspace(1., 3., data.shape[0]))
## Set a custom color map
colors = [
(0, 0, 0),
(45, 5, 61),
(84, 42, 55),
(150, 87, 60),
(208, 171, 141),
(255, 255, 255)
]
cmap = pg.ColorMap(pos=np.linspace(0.0, 1.0, 6), color=colors)
imv.setColorMap(cmap)
## Start Qt event loop unless running in interactive mode.
if __name__ == '__main__':
import sys

45
examples/InfiniteLine.py Normal file
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@ -0,0 +1,45 @@
# -*- coding: utf-8 -*-
"""
This example demonstrates some of the plotting items available in pyqtgraph.
"""
import initExample ## Add path to library (just for examples; you do not need this)
from pyqtgraph.Qt import QtGui, QtCore
import numpy as np
import pyqtgraph as pg
app = QtGui.QApplication([])
win = pg.GraphicsWindow(title="Plotting items examples")
win.resize(1000,600)
# Enable antialiasing for prettier plots
pg.setConfigOptions(antialias=True)
# Create a plot with some random data
p1 = win.addPlot(title="Plot Items example", y=np.random.normal(size=100, scale=10), pen=0.5)
p1.setYRange(-40, 40)
# Add three infinite lines with labels
inf1 = pg.InfiniteLine(movable=True, angle=90, label='x={value:0.2f}',
labelOpts={'position':0.1, 'color': (200,200,100), 'fill': (200,200,200,50), 'movable': True})
inf2 = pg.InfiniteLine(movable=True, angle=0, pen=(0, 0, 200), bounds = [-20, 20], hoverPen=(0,200,0), label='y={value:0.2f}mm',
labelOpts={'color': (200,0,0), 'movable': True, 'fill': (0, 0, 200, 100)})
inf3 = pg.InfiniteLine(movable=True, angle=45, pen='g', label='diagonal',
labelOpts={'rotateAxis': [1, 0], 'fill': (0, 200, 0, 100), 'movable': True})
inf1.setPos([2,2])
p1.addItem(inf1)
p1.addItem(inf2)
p1.addItem(inf3)
# Add a linear region with a label
lr = pg.LinearRegionItem(values=[70, 80])
p1.addItem(lr)
label = pg.InfLineLabel(lr.lines[1], "region 1", position=0.95, rotateAxis=(1,0), anchor=(1, 1))
## Start Qt event loop unless running in interactive mode or using pyside.
if __name__ == '__main__':
import sys
if (sys.flags.interactive != 1) or not hasattr(QtCore, 'PYQT_VERSION'):
QtGui.QApplication.instance().exec_()

2
examples/PlotWidget.py
View File

@ -37,7 +37,7 @@ p1.setPen((200,200,100))
## Add in some extra graphics
rect = QtGui.QGraphicsRectItem(QtCore.QRectF(0, 0, 1, 5e-11))
rect.setPen(QtGui.QPen(QtGui.QColor(100, 200, 100)))
rect.setPen(pg.mkPen(100, 200, 100))
pw.addItem(rect)
pw.setLabel('left', 'Value', units='V')

4
examples/Plotting.py
View File

@ -28,8 +28,8 @@ p1 = win.addPlot(title="Basic array plotting", y=np.random.normal(size=100))
p2 = win.addPlot(title="Multiple curves")
p2.plot(np.random.normal(size=100), pen=(255,0,0), name="Red curve")
p2.plot(np.random.normal(size=110)+5, pen=(0,255,0), name="Blue curve")
p2.plot(np.random.normal(size=120)+10, pen=(0,0,255), name="Green curve")
p2.plot(np.random.normal(size=110)+5, pen=(0,255,0), name="Green curve")
p2.plot(np.random.normal(size=120)+10, pen=(0,0,255), name="Blue curve")
p3 = win.addPlot(title="Drawing with points")
p3.plot(np.random.normal(size=100), pen=(200,200,200), symbolBrush=(255,0,0), symbolPen='w')

6
examples/ROIExamples.py
View File

@ -11,6 +11,7 @@ import pyqtgraph as pg
from pyqtgraph.Qt import QtCore, QtGui
import numpy as np
pg.setConfigOptions(imageAxisOrder='row-major')
## Create image to display
arr = np.ones((100, 100), dtype=float)
@ -24,6 +25,11 @@ arr[:, 50] = 10
arr += np.sin(np.linspace(0, 20, 100)).reshape(1, 100)
arr += np.random.normal(size=(100,100))
# add an arrow for asymmetry
arr[10, :50] = 10
arr[9:12, 44:48] = 10
arr[8:13, 44:46] = 10
## create GUI
app = QtGui.QApplication([])

18
examples/ROItypes.py
View File

@ -8,23 +8,15 @@ from pyqtgraph.Qt import QtCore, QtGui
import numpy as np
import pyqtgraph as pg
pg.setConfigOptions(imageAxisOrder='row-major')
## create GUI
app = QtGui.QApplication([])
w = pg.GraphicsWindow(size=(800,800), border=True)
v = w.addViewBox(colspan=2)
#w = QtGui.QMainWindow()
#w.resize(800,800)
#v = pg.GraphicsView()
v.invertY(True) ## Images usually have their Y-axis pointing downward
v.setAspectLocked(True)
#v.enableMouse(True)
#v.autoPixelScale = False
#w.setCentralWidget(v)
#s = v.scene()
#v.setRange(QtCore.QRectF(-2, -2, 220, 220))
## Create image to display
@ -37,6 +29,11 @@ arr[:, 75] = 5
arr[50, :] = 10
arr[:, 50] = 10
# add an arrow for asymmetry
arr[10, :50] = 10
arr[9:12, 44:48] = 10
arr[8:13, 44:46] = 10
## Create image items, add to scene and set position
im1 = pg.ImageItem(arr)
im2 = pg.ImageItem(arr)
@ -44,6 +41,7 @@ v.addItem(im1)
v.addItem(im2)
im2.moveBy(110, 20)
v.setRange(QtCore.QRectF(0, 0, 200, 120))
im1.scale(0.8, 0.5)
im3 = pg.ImageItem()
v2 = w.addViewBox(1,0)

4
examples/ScatterPlotSpeedTest.py
View File

@ -12,7 +12,7 @@ For testing rapid updates of ScatterPlotItem under various conditions.
import initExample
from pyqtgraph.Qt import QtGui, QtCore, USE_PYSIDE
from pyqtgraph.Qt import QtGui, QtCore, USE_PYSIDE, USE_PYQT5
import numpy as np
import pyqtgraph as pg
from pyqtgraph.ptime import time
@ -22,6 +22,8 @@ app = QtGui.QApplication([])
#mw.resize(800,800)
if USE_PYSIDE:
from ScatterPlotSpeedTestTemplate_pyside import Ui_Form
elif USE_PYQT5:
from ScatterPlotSpeedTestTemplate_pyqt5 import Ui_Form
else:
from ScatterPlotSpeedTestTemplate_pyqt import Ui_Form

80
examples/ScatterPlotWidget.py
View File

@ -1,4 +1,22 @@
# -*- coding: utf-8 -*-
"""
Demonstration of ScatterPlotWidget for exploring structure in tabular data.
The widget consists of four components:
1) A list of column names from which the user may select 1 or 2 columns
to plot. If one column is selected, the data for that column will be
plotted in a histogram-like manner by using pg.pseudoScatter().
If two columns are selected, then the
scatter plot will be generated with x determined by the first column
that was selected and y by the second.
2) A DataFilter that allows the user to select a subset of the data by
specifying multiple selection criteria.
3) A ColorMap that allows the user to determine how points are colored by
specifying multiple criteria.
4) A PlotWidget for displaying the data.
"""
import initExample ## Add path to library (just for examples; you do not need this)
import pyqtgraph as pg
@ -7,42 +25,42 @@ import numpy as np
pg.mkQApp()
# Make up some tabular data with structure
data = np.empty(1000, dtype=[('x_pos', float), ('y_pos', float),
('count', int), ('amplitude', float),
('decay', float), ('type', 'S10')])
strings = ['Type-A', 'Type-B', 'Type-C', 'Type-D', 'Type-E']
typeInds = np.random.randint(5, size=1000)
data['type'] = np.array(strings)[typeInds]
data['x_pos'] = np.random.normal(size=1000)
data['x_pos'][data['type'] == 'Type-A'] -= 1
data['x_pos'][data['type'] == 'Type-B'] -= 1
data['x_pos'][data['type'] == 'Type-C'] += 2
data['x_pos'][data['type'] == 'Type-D'] += 2
data['x_pos'][data['type'] == 'Type-E'] += 2
data['y_pos'] = np.random.normal(size=1000) + data['x_pos']*0.1
data['y_pos'][data['type'] == 'Type-A'] += 3
data['y_pos'][data['type'] == 'Type-B'] += 3
data['amplitude'] = data['x_pos'] * 1.4 + data['y_pos'] + np.random.normal(size=1000, scale=0.4)
data['count'] = (np.random.exponential(size=1000, scale=100) * data['x_pos']).astype(int)
data['decay'] = np.random.normal(size=1000, scale=1e-3) + data['amplitude'] * 1e-4
data['decay'][data['type'] == 'Type-A'] /= 2
data['decay'][data['type'] == 'Type-E'] *= 3
# Create ScatterPlotWidget and configure its fields
spw = pg.ScatterPlotWidget()
spw.show()
data = np.array([
(1, 1, 3, 4, 'x'),
(2, 3, 3, 7, 'y'),
(3, 2, 5, 2, 'z'),
(4, 4, 6, 9, 'z'),
(5, 3, 6, 7, 'x'),
(6, 5, 4, 6, 'x'),
(7, 5, 8, 2, 'z'),
(8, 1, 2, 4, 'x'),
(9, 2, 3, 7, 'z'),
(0, 6, 0, 2, 'z'),
(1, 3, 1, 2, 'z'),
(2, 5, 4, 6, 'y'),
(3, 4, 8, 1, 'y'),
(4, 7, 6, 8, 'z'),
(5, 8, 7, 4, 'y'),
(6, 1, 2, 3, 'y'),
(7, 5, 3, 9, 'z'),
(8, 9, 3, 1, 'x'),
(9, 2, 6, 2, 'z'),
(0, 3, 4, 6, 'x'),
(1, 5, 9, 3, 'y'),
], dtype=[('col1', float), ('col2', float), ('col3', int), ('col4', int), ('col5', 'S10')])
spw.setFields([
('col1', {'units': 'm'}),
('col2', {'units': 'm'}),
('col3', {}),
('col4', {}),
('col5', {'mode': 'enum', 'values': ['x', 'y', 'z']}),
('x_pos', {'units': 'm'}),
('y_pos', {'units': 'm'}),
('count', {}),
('amplitude', {'units': 'V'}),
('decay', {'units': 's'}),
('type', {'mode': 'enum', 'values': strings}),
])
spw.setData(data)
spw.show()
## Start Qt event loop unless running in interactive mode or using pyside.

18
examples/SpinBox.py
View File

@ -19,12 +19,18 @@ app = QtGui.QApplication([])
spins = [
("Floating-point spin box, min=0, no maximum.", pg.SpinBox(value=5.0, bounds=[0, None])),
("Integer spin box, dec stepping<br>(1-9, 10-90, 100-900, etc)", pg.SpinBox(value=10, int=True, dec=True, minStep=1, step=1)),
("Float with SI-prefixed units<br>(n, u, m, k, M, etc)", pg.SpinBox(value=0.9, suffix='V', siPrefix=True)),
("Float with SI-prefixed units,<br>dec step=0.1, minStep=0.1", pg.SpinBox(value=1.0, suffix='V', siPrefix=True, dec=True, step=0.1, minStep=0.1)),
("Float with SI-prefixed units,<br>dec step=0.5, minStep=0.01", pg.SpinBox(value=1.0, suffix='V', siPrefix=True, dec=True, step=0.5, minStep=0.01)),
("Float with SI-prefixed units,<br>dec step=1.0, minStep=0.001", pg.SpinBox(value=1.0, suffix='V', siPrefix=True, dec=True, step=1.0, minStep=0.001)),
("Floating-point spin box, min=0, no maximum.",
pg.SpinBox(value=5.0, bounds=[0, None])),
("Integer spin box, dec stepping<br>(1-9, 10-90, 100-900, etc), decimals=4",
pg.SpinBox(value=10, int=True, dec=True, minStep=1, step=1, decimals=4)),
("Float with SI-prefixed units<br>(n, u, m, k, M, etc)",
pg.SpinBox(value=0.9, suffix='V', siPrefix=True)),
("Float with SI-prefixed units,<br>dec step=0.1, minStep=0.1",
pg.SpinBox(value=1.0, suffix='V', siPrefix=True, dec=True, step=0.1, minStep=0.1)),
("Float with SI-prefixed units,<br>dec step=0.5, minStep=0.01",
pg.SpinBox(value=1.0, suffix='V', siPrefix=True, dec=True, step=0.5, minStep=0.01)),
("Float with SI-prefixed units,<br>dec step=1.0, minStep=0.001",
pg.SpinBox(value=1.0, suffix='V', siPrefix=True, dec=True, step=1.0, minStep=0.001)),
]

38
examples/Symbols.py Executable file
View File

@ -0,0 +1,38 @@
# -*- coding: utf-8 -*-
"""
This example shows all the scatter plot symbols available in pyqtgraph.
These symbols are used to mark point locations for scatter plots and some line
plots, similar to "markers" in matplotlib and vispy.
"""
import initExample ## Add path to library (just for examples; you do not need this)
from pyqtgraph.Qt import QtGui, QtCore
import pyqtgraph as pg
app = QtGui.QApplication([])
win = pg.GraphicsWindow(title="Scatter Plot Symbols")
win.resize(1000,600)
pg.setConfigOptions(antialias=True)
plot = win.addPlot(title="Plotting with symbols")
plot.addLegend()
plot.plot([0, 1, 2, 3, 4], pen=(0,0,200), symbolBrush=(0,0,200), symbolPen='w', symbol='o', symbolSize=14, name="symbol='o'")
plot.plot([1, 2, 3, 4, 5], pen=(0,128,0), symbolBrush=(0,128,0), symbolPen='w', symbol='t', symbolSize=14, name="symbol='t'")
plot.plot([2, 3, 4, 5, 6], pen=(19,234,201), symbolBrush=(19,234,201), symbolPen='w', symbol='t1', symbolSize=14, name="symbol='t1'")
plot.plot([3, 4, 5, 6, 7], pen=(195,46,212), symbolBrush=(195,46,212), symbolPen='w', symbol='t2', symbolSize=14, name="symbol='t2'")
plot.plot([4, 5, 6, 7, 8], pen=(250,194,5), symbolBrush=(250,194,5), symbolPen='w', symbol='t3', symbolSize=14, name="symbol='t3'")
plot.plot([5, 6, 7, 8, 9], pen=(54,55,55), symbolBrush=(55,55,55), symbolPen='w', symbol='s', symbolSize=14, name="symbol='s'")
plot.plot([6, 7, 8, 9, 10], pen=(0,114,189), symbolBrush=(0,114,189), symbolPen='w', symbol='p', symbolSize=14, name="symbol='p'")
plot.plot([7, 8, 9, 10, 11], pen=(217,83,25), symbolBrush=(217,83,25), symbolPen='w', symbol='h', symbolSize=14, name="symbol='h'")
plot.plot([8, 9, 10, 11, 12], pen=(237,177,32), symbolBrush=(237,177,32), symbolPen='w', symbol='star', symbolSize=14, name="symbol='star'")
plot.plot([9, 10, 11, 12, 13], pen=(126,47,142), symbolBrush=(126,47,142), symbolPen='w', symbol='+', symbolSize=14, name="symbol='+'")
plot.plot([10, 11, 12, 13, 14], pen=(119,172,48), symbolBrush=(119,172,48), symbolPen='w', symbol='d', symbolSize=14, name="symbol='d'")
plot.setXRange(-2, 4)
## Start Qt event loop unless running in interactive mode or using pyside.
if __name__ == '__main__':
import sys
if (sys.flags.interactive != 1) or not hasattr(QtCore, 'PYQT_VERSION'):
QtGui.QApplication.instance().exec_()

19
examples/VideoSpeedTest.py
View File

@ -10,27 +10,37 @@ is used by the view widget
import initExample ## Add path to library (just for examples; you do not need this)
from pyqtgraph.Qt import QtGui, QtCore, USE_PYSIDE
from pyqtgraph.Qt import QtGui, QtCore, USE_PYSIDE, USE_PYQT5
import numpy as np
import pyqtgraph as pg
import pyqtgraph.ptime as ptime
if USE_PYSIDE:
import VideoTemplate_pyside as VideoTemplate
elif USE_PYQT5:
import VideoTemplate_pyqt5 as VideoTemplate
else:
import VideoTemplate_pyqt as VideoTemplate
#QtGui.QApplication.setGraphicsSystem('raster')
app = QtGui.QApplication([])
#mw = QtGui.QMainWindow()
#mw.resize(800,800)
win = QtGui.QMainWindow()
win.setWindowTitle('pyqtgraph example: VideoSpeedTest')
ui = VideoTemplate.Ui_MainWindow()
ui.setupUi(win)
win.show()
try:
from pyqtgraph.widgets.RawImageWidget import RawImageGLWidget
except ImportError:
ui.rawGLRadio.setEnabled(False)
ui.rawGLRadio.setText(ui.rawGLRadio.text() + " (OpenGL not available)")
else:
ui.rawGLImg = RawImageGLWidget()
ui.stack.addWidget(ui.rawGLImg)
ui.maxSpin1.setOpts(value=255, step=1)
ui.minSpin1.setOpts(value=0, step=1)
@ -101,6 +111,9 @@ def mkData():
if dtype[0] != 'float':
data = np.clip(data, 0, mx)
data = data.astype(dt)
data[:, 10, 10:50] = mx
data[:, 9:12, 48] = mx
data[:, 8:13, 47] = mx
cache = {dtype: data} # clear to save memory (but keep one to prevent unnecessary regeneration)
data = cache[dtype]

15
examples/VideoTemplate.ui
View File

@ -51,7 +51,7 @@
<item row="0" column="0">
<widget class="QStackedWidget" name="stack">
<property name="currentIndex">
<number>2</number>
<number>1</number>
</property>
<widget class="QWidget" name="page">
<layout class="QGridLayout" name="gridLayout_3">
@ -74,13 +74,6 @@
</item>
</layout>
</widget>
<widget class="QWidget" name="page_3">
<layout class="QGridLayout" name="gridLayout_5">
<item row="0" column="0">
<widget class="RawImageGLWidget" name="rawGLImg" native="true"/>
</item>
</layout>
</widget>
</widget>
</item>
<item row="4" column="0">
@ -340,12 +333,6 @@
<extends>QDoubleSpinBox</extends>
<header>pyqtgraph</header>
</customwidget>
<customwidget>
<class>RawImageGLWidget</class>
<extends>QWidget</extends>
<header>pyqtgraph.widgets.RawImageWidget</header>
<container>1</container>
</customwidget>
</customwidgets>
<resources/>
<connections/>

19
examples/VideoTemplate_pyqt.py
View File

@ -1,9 +1,8 @@
# -*- coding: utf-8 -*-
# Form implementation generated from reading ui file './examples/VideoTemplate.ui'
# Form implementation generated from reading ui file 'examples/VideoTemplate.ui'
#
# Created: Mon Feb 17 20:39:30 2014
# by: PyQt4 UI code generator 4.10.3
# Created by: PyQt4 UI code generator 4.11.4
#
# WARNING! All changes made in this file will be lost!
@ -69,14 +68,6 @@ class Ui_MainWindow(object):
self.rawImg.setObjectName(_fromUtf8("rawImg"))
self.gridLayout_4.addWidget(self.rawImg, 0, 0, 1, 1)
self.stack.addWidget(self.page_2)
self.page_3 = QtGui.QWidget()
self.page_3.setObjectName(_fromUtf8("page_3"))
self.gridLayout_5 = QtGui.QGridLayout(self.page_3)
self.gridLayout_5.setObjectName(_fromUtf8("gridLayout_5"))
self.rawGLImg = RawImageGLWidget(self.page_3)
self.rawGLImg.setObjectName(_fromUtf8("rawGLImg"))
self.gridLayout_5.addWidget(self.rawGLImg, 0, 0, 1, 1)
self.stack.addWidget(self.page_3)
self.gridLayout.addWidget(self.stack, 0, 0, 1, 1)
self.rawGLRadio = QtGui.QRadioButton(self.centralwidget)
self.rawGLRadio.setObjectName(_fromUtf8("rawGLRadio"))
@ -193,7 +184,7 @@ class Ui_MainWindow(object):
MainWindow.setCentralWidget(self.centralwidget)
self.retranslateUi(MainWindow)
self.stack.setCurrentIndex(2)
self.stack.setCurrentIndex(1)
QtCore.QMetaObject.connectSlotsByName(MainWindow)
def retranslateUi(self, MainWindow):
@ -217,5 +208,5 @@ class Ui_MainWindow(object):
self.rgbCheck.setText(_translate("MainWindow", "RGB", None))
self.label_5.setText(_translate("MainWindow", "Image size", None))
from pyqtgraph.widgets.RawImageWidget import RawImageGLWidget, RawImageWidget
from pyqtgraph import GradientWidget, SpinBox, GraphicsView
from pyqtgraph import GradientWidget, GraphicsView, SpinBox
from pyqtgraph.widgets.RawImageWidget import RawImageWidget

199
examples/VideoTemplate_pyqt5.py Normal file
View File

@ -0,0 +1,199 @@
# -*- coding: utf-8 -*-
# Form implementation generated from reading ui file 'examples/VideoTemplate.ui'
#
# Created by: PyQt5 UI code generator 5.5.1
#
# WARNING! All changes made in this file will be lost!
from PyQt5 import QtCore, QtGui, QtWidgets
class Ui_MainWindow(object):
def setupUi(self, MainWindow):
MainWindow.setObjectName("MainWindow")
MainWindow.resize(695, 798)
self.centralwidget = QtWidgets.QWidget(MainWindow)
self.centralwidget.setObjectName("centralwidget")
self.gridLayout_2 = QtWidgets.QGridLayout(self.centralwidget)
self.gridLayout_2.setObjectName("gridLayout_2")
self.downsampleCheck = QtWidgets.QCheckBox(self.centralwidget)
self.downsampleCheck.setObjectName("downsampleCheck")
self.gridLayout_2.addWidget(self.downsampleCheck, 8, 0, 1, 2)
self.scaleCheck = QtWidgets.QCheckBox(self.centralwidget)
self.scaleCheck.setObjectName("scaleCheck")
self.gridLayout_2.addWidget(self.scaleCheck, 4, 0, 1, 1)
self.gridLayout = QtWidgets.QGridLayout()
self.gridLayout.setObjectName("gridLayout")
self.rawRadio = QtWidgets.QRadioButton(self.centralwidget)
self.rawRadio.setObjectName("rawRadio")
self.gridLayout.addWidget(self.rawRadio, 3, 0, 1, 1)
self.gfxRadio = QtWidgets.QRadioButton(self.centralwidget)
self.gfxRadio.setChecked(True)
self.gfxRadio.setObjectName("gfxRadio")
self.gridLayout.addWidget(self.gfxRadio, 2, 0, 1, 1)
self.stack = QtWidgets.QStackedWidget(self.centralwidget)
self.stack.setObjectName("stack")
self.page = QtWidgets.QWidget()
self.page.setObjectName("page")
self.gridLayout_3 = QtWidgets.QGridLayout(self.page)
self.gridLayout_3.setObjectName("gridLayout_3")
self.graphicsView = GraphicsView(self.page)
self.graphicsView.setObjectName("graphicsView")
self.gridLayout_3.addWidget(self.graphicsView, 0, 0, 1, 1)
self.stack.addWidget(self.page)
self.page_2 = QtWidgets.QWidget()
self.page_2.setObjectName("page_2")
self.gridLayout_4 = QtWidgets.QGridLayout(self.page_2)
self.gridLayout_4.setObjectName("gridLayout_4")
self.rawImg = RawImageWidget(self.page_2)
sizePolicy = QtWidgets.QSizePolicy(QtWidgets.QSizePolicy.Expanding, QtWidgets.QSizePolicy.Preferred)
sizePolicy.setHorizontalStretch(0)
sizePolicy.setVerticalStretch(0)
sizePolicy.setHeightForWidth(self.rawImg.sizePolicy().hasHeightForWidth())
self.rawImg.setSizePolicy(sizePolicy)
self.rawImg.setObjectName("rawImg")
self.gridLayout_4.addWidget(self.rawImg, 0, 0, 1, 1)
self.stack.addWidget(self.page_2)
self.gridLayout.addWidget(self.stack, 0, 0, 1, 1)
self.rawGLRadio = QtWidgets.QRadioButton(self.centralwidget)
self.rawGLRadio.setObjectName("rawGLRadio")
self.gridLayout.addWidget(self.rawGLRadio, 4, 0, 1, 1)
self.gridLayout_2.addLayout(self.gridLayout, 1, 0, 1, 4)
self.dtypeCombo = QtWidgets.QComboBox(self.centralwidget)
self.dtypeCombo.setObjectName("dtypeCombo")
self.dtypeCombo.addItem("")
self.dtypeCombo.addItem("")
self.dtypeCombo.addItem("")
self.gridLayout_2.addWidget(self.dtypeCombo, 3, 2, 1, 1)
self.label = QtWidgets.QLabel(self.centralwidget)
self.label.setObjectName("label")
self.gridLayout_2.addWidget(self.label, 3, 0, 1, 1)
self.rgbLevelsCheck = QtWidgets.QCheckBox(self.centralwidget)
self.rgbLevelsCheck.setObjectName("rgbLevelsCheck")
self.gridLayout_2.addWidget(self.rgbLevelsCheck, 4, 1, 1, 1)
self.horizontalLayout_2 = QtWidgets.QHBoxLayout()
self.horizontalLayout_2.setObjectName("horizontalLayout_2")
self.minSpin2 = SpinBox(self.centralwidget)
self.minSpin2.setEnabled(False)
self.minSpin2.setObjectName("minSpin2")
self.horizontalLayout_2.addWidget(self.minSpin2)
self.label_3 = QtWidgets.QLabel(self.centralwidget)
self.label_3.setAlignment(QtCore.Qt.AlignCenter)
self.label_3.setObjectName("label_3")
self.horizontalLayout_2.addWidget(self.label_3)
self.maxSpin2 = SpinBox(self.centralwidget)
self.maxSpin2.setEnabled(False)
self.maxSpin2.setObjectName("maxSpin2")
self.horizontalLayout_2.addWidget(self.maxSpin2)
self.gridLayout_2.addLayout(self.horizontalLayout_2, 5, 2, 1, 1)
self.horizontalLayout = QtWidgets.QHBoxLayout()
self.horizontalLayout.setObjectName("horizontalLayout")
self.minSpin1 = SpinBox(self.centralwidget)
self.minSpin1.setObjectName("minSpin1")
self.horizontalLayout.addWidget(self.minSpin1)
self.label_2 = QtWidgets.QLabel(self.centralwidget)
self.label_2.setAlignment(QtCore.Qt.AlignCenter)
self.label_2.setObjectName("label_2")
self.horizontalLayout.addWidget(self.label_2)
self.maxSpin1 = SpinBox(self.centralwidget)
self.maxSpin1.setObjectName("maxSpin1")
self.horizontalLayout.addWidget(self.maxSpin1)
self.gridLayout_2.addLayout(self.horizontalLayout, 4, 2, 1, 1)
self.horizontalLayout_3 = QtWidgets.QHBoxLayout()
self.horizontalLayout_3.setObjectName("horizontalLayout_3")
self.minSpin3 = SpinBox(self.centralwidget)
self.minSpin3.setEnabled(False)
self.minSpin3.setObjectName("minSpin3")
self.horizontalLayout_3.addWidget(self.minSpin3)
self.label_4 = QtWidgets.QLabel(self.centralwidget)
self.label_4.setAlignment(QtCore.Qt.AlignCenter)
self.label_4.setObjectName("label_4")
self.horizontalLayout_3.addWidget(self.label_4)
self.maxSpin3 = SpinBox(self.centralwidget)
self.maxSpin3.setEnabled(False)
self.maxSpin3.setObjectName("maxSpin3")
self.horizontalLayout_3.addWidget(self.maxSpin3)
self.gridLayout_2.addLayout(self.horizontalLayout_3, 6, 2, 1, 1)
self.lutCheck = QtWidgets.QCheckBox(self.centralwidget)
self.lutCheck.setObjectName("lutCheck")
self.gridLayout_2.addWidget(self.lutCheck, 7, 0, 1, 1)
self.alphaCheck = QtWidgets.QCheckBox(self.centralwidget)
self.alphaCheck.setObjectName("alphaCheck")
self.gridLayout_2.addWidget(self.alphaCheck, 7, 1, 1, 1)
self.gradient = GradientWidget(self.centralwidget)
sizePolicy = QtWidgets.QSizePolicy(QtWidgets.QSizePolicy.Expanding, QtWidgets.QSizePolicy.Preferred)
sizePolicy.setHorizontalStretch(0)
sizePolicy.setVerticalStretch(0)
sizePolicy.setHeightForWidth(self.gradient.sizePolicy().hasHeightForWidth())
self.gradient.setSizePolicy(sizePolicy)
self.gradient.setObjectName("gradient")
self.gridLayout_2.addWidget(self.gradient, 7, 2, 1, 2)
spacerItem = QtWidgets.QSpacerItem(40, 20, QtWidgets.QSizePolicy.Expanding, QtWidgets.QSizePolicy.Minimum)
self.gridLayout_2.addItem(spacerItem, 3, 3, 1, 1)
self.fpsLabel = QtWidgets.QLabel(self.centralwidget)
font = QtGui.QFont()
font.setPointSize(12)
self.fpsLabel.setFont(font)
self.fpsLabel.setAlignment(QtCore.Qt.AlignCenter)
self.fpsLabel.setObjectName("fpsLabel")
self.gridLayout_2.addWidget(self.fpsLabel, 0, 0, 1, 4)
self.rgbCheck = QtWidgets.QCheckBox(self.centralwidget)
self.rgbCheck.setObjectName("rgbCheck")
self.gridLayout_2.addWidget(self.rgbCheck, 3, 1, 1, 1)
self.label_5 = QtWidgets.QLabel(self.centralwidget)
self.label_5.setObjectName("label_5")
self.gridLayout_2.addWidget(self.label_5, 2, 0, 1, 1)
self.horizontalLayout_4 = QtWidgets.QHBoxLayout()
self.horizontalLayout_4.setObjectName("horizontalLayout_4")
self.framesSpin = QtWidgets.QSpinBox(self.centralwidget)
self.framesSpin.setButtonSymbols(QtWidgets.QAbstractSpinBox.NoButtons)
self.framesSpin.setProperty("value", 10)
self.framesSpin.setObjectName("framesSpin")
self.horizontalLayout_4.addWidget(self.framesSpin)
self.widthSpin = QtWidgets.QSpinBox(self.centralwidget)
self.widthSpin.setButtonSymbols(QtWidgets.QAbstractSpinBox.PlusMinus)
self.widthSpin.setMaximum(10000)
self.widthSpin.setProperty("value", 512)
self.widthSpin.setObjectName("widthSpin")
self.horizontalLayout_4.addWidget(self.widthSpin)
self.heightSpin = QtWidgets.QSpinBox(self.centralwidget)
self.heightSpin.setButtonSymbols(QtWidgets.QAbstractSpinBox.NoButtons)
self.heightSpin.setMaximum(10000)
self.heightSpin.setProperty("value", 512)
self.heightSpin.setObjectName("heightSpin")
self.horizontalLayout_4.addWidget(self.heightSpin)
self.gridLayout_2.addLayout(self.horizontalLayout_4, 2, 1, 1, 2)
self.sizeLabel = QtWidgets.QLabel(self.centralwidget)
self.sizeLabel.setText("")
self.sizeLabel.setObjectName("sizeLabel")
self.gridLayout_2.addWidget(self.sizeLabel, 2, 3, 1, 1)
MainWindow.setCentralWidget(self.centralwidget)
self.retranslateUi(MainWindow)
self.stack.setCurrentIndex(1)
QtCore.QMetaObject.connectSlotsByName(MainWindow)
def retranslateUi(self, MainWindow):
_translate = QtCore.QCoreApplication.translate
MainWindow.setWindowTitle(_translate("MainWindow", "MainWindow"))
self.downsampleCheck.setText(_translate("MainWindow", "Auto downsample"))
self.scaleCheck.setText(_translate("MainWindow", "Scale Data"))
self.rawRadio.setText(_translate("MainWindow", "RawImageWidget"))
self.gfxRadio.setText(_translate("MainWindow", "GraphicsView + ImageItem"))
self.rawGLRadio.setText(_translate("MainWindow", "RawGLImageWidget"))
self.dtypeCombo.setItemText(0, _translate("MainWindow", "uint8"))
self.dtypeCombo.setItemText(1, _translate("MainWindow", "uint16"))
self.dtypeCombo.setItemText(2, _translate("MainWindow", "float"))
self.label.setText(_translate("MainWindow", "Data type"))
self.rgbLevelsCheck.setText(_translate("MainWindow", "RGB"))
self.label_3.setText(_translate("MainWindow", "<--->"))
self.label_2.setText(_translate("MainWindow", "<--->"))
self.label_4.setText(_translate("MainWindow", "<--->"))
self.lutCheck.setText(_translate("MainWindow", "Use Lookup Table"))
self.alphaCheck.setText(_translate("MainWindow", "alpha"))
self.fpsLabel.setText(_translate("MainWindow", "FPS"))
self.rgbCheck.setText(_translate("MainWindow", "RGB"))
self.label_5.setText(_translate("MainWindow", "Image size"))
from pyqtgraph import GradientWidget, GraphicsView, SpinBox
from pyqtgraph.widgets.RawImageWidget import RawImageWidget

20
examples/VideoTemplate_pyside.py
View File

@ -1,9 +1,9 @@
# -*- coding: utf-8 -*-
# Form implementation generated from reading ui file './examples/VideoTemplate.ui'
# Form implementation generated from reading ui file 'examples/VideoTemplate.ui'
#
# Created: Mon Feb 17 20:39:30 2014
# by: pyside-uic 0.2.14 running on PySide 1.1.2
# Created: Wed Oct 26 09:21:01 2016
# by: pyside-uic 0.2.15 running on PySide 1.2.2
#
# WARNING! All changes made in this file will be lost!
@ -55,14 +55,6 @@ class Ui_MainWindow(object):
self.rawImg.setObjectName("rawImg")
self.gridLayout_4.addWidget(self.rawImg, 0, 0, 1, 1)
self.stack.addWidget(self.page_2)
self.page_3 = QtGui.QWidget()
self.page_3.setObjectName("page_3")
self.gridLayout_5 = QtGui.QGridLayout(self.page_3)
self.gridLayout_5.setObjectName("gridLayout_5")
self.rawGLImg = RawImageGLWidget(self.page_3)
self.rawGLImg.setObjectName("rawGLImg")
self.gridLayout_5.addWidget(self.rawGLImg, 0, 0, 1, 1)
self.stack.addWidget(self.page_3)
self.gridLayout.addWidget(self.stack, 0, 0, 1, 1)
self.rawGLRadio = QtGui.QRadioButton(self.centralwidget)
self.rawGLRadio.setObjectName("rawGLRadio")
@ -179,7 +171,7 @@ class Ui_MainWindow(object):
MainWindow.setCentralWidget(self.centralwidget)
self.retranslateUi(MainWindow)
self.stack.setCurrentIndex(2)
self.stack.setCurrentIndex(1)
QtCore.QMetaObject.connectSlotsByName(MainWindow)
def retranslateUi(self, MainWindow):
@ -203,5 +195,5 @@ class Ui_MainWindow(object):
self.rgbCheck.setText(QtGui.QApplication.translate("MainWindow", "RGB", None, QtGui.QApplication.UnicodeUTF8))
self.label_5.setText(QtGui.QApplication.translate("MainWindow", "Image size", None, QtGui.QApplication.UnicodeUTF8))
from pyqtgraph.widgets.RawImageWidget import RawImageGLWidget, RawImageWidget
from pyqtgraph import GradientWidget, SpinBox, GraphicsView
from pyqtgraph.widgets.RawImageWidget import RawImageWidget
from pyqtgraph import SpinBox, GradientWidget, GraphicsView

4
examples/ViewBox.py
View File

@ -42,7 +42,7 @@ class movableRect(QtGui.QGraphicsRectItem):
self.setAcceptHoverEvents(True)
def hoverEnterEvent(self, ev):
self.savedPen = self.pen()
self.setPen(QtGui.QPen(QtGui.QColor(255, 255, 255)))
self.setPen(pg.mkPen(255, 255, 255))
ev.ignore()
def hoverLeaveEvent(self, ev):
self.setPen(self.savedPen)
@ -57,7 +57,7 @@ class movableRect(QtGui.QGraphicsRectItem):
self.setPos(self.mapToParent(ev.pos()) - self.pressDelta)
rect = movableRect(QtCore.QRectF(0, 0, 1, 1))
rect.setPen(QtGui.QPen(QtGui.QColor(100, 200, 100)))
rect.setPen(pg.mkPen(100, 200, 100))
vb.addItem(rect)
l.addItem(vb, 0, 1)

214
examples/__main__.py
View File

@ -1,102 +1,24 @@
import sys, os, subprocess, time
import sys, os
if __name__ == "__main__" and (__package__ is None or __package__==''):
parent_dir = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
sys.path.insert(0, parent_dir)
import examples
__package__ = "examples"
from . import initExample
from pyqtgraph.Qt import QtCore, QtGui, USE_PYSIDE
import pyqtgraph as pg
import subprocess
from pyqtgraph.python2_3 import basestring
from pyqtgraph.Qt import QtGui, USE_PYSIDE, USE_PYQT5
from .utils import buildFileList, testFile, path, examples
if USE_PYSIDE:
from .exampleLoaderTemplate_pyside import Ui_Form
elif USE_PYQT5:
from .exampleLoaderTemplate_pyqt5 import Ui_Form
else:
from .exampleLoaderTemplate_pyqt import Ui_Form
import os, sys
from pyqtgraph.pgcollections import OrderedDict
examples = OrderedDict([
('Command-line usage', 'CLIexample.py'),
('Basic Plotting', 'Plotting.py'),
('ImageView', 'ImageView.py'),
('ParameterTree', 'parametertree.py'),
('Crosshair / Mouse interaction', 'crosshair.py'),
('Data Slicing', 'DataSlicing.py'),
('Plot Customization', 'customPlot.py'),
('Image Analysis', 'imageAnalysis.py'),
('Dock widgets', 'dockarea.py'),
('Console', 'ConsoleWidget.py'),
('Histograms', 'histogram.py'),
('Auto-range', 'PlotAutoRange.py'),
('Remote Plotting', 'RemoteSpeedTest.py'),
('Scrolling plots', 'scrollingPlots.py'),
('HDF5 big data', 'hdf5.py'),
('Demos', OrderedDict([
('Optics', 'optics_demos.py'),
('Special relativity', 'relativity_demo.py'),
('Verlet chain', 'verlet_chain_demo.py'),
])),
('GraphicsItems', OrderedDict([
('Scatter Plot', 'ScatterPlot.py'),
#('PlotItem', 'PlotItem.py'),
('IsocurveItem', 'isocurve.py'),
('GraphItem', 'GraphItem.py'),
('ErrorBarItem', 'ErrorBarItem.py'),
('FillBetweenItem', 'FillBetweenItem.py'),
('ImageItem - video', 'ImageItem.py'),
('ImageItem - draw', 'Draw.py'),
('Region-of-Interest', 'ROIExamples.py'),
('GraphicsLayout', 'GraphicsLayout.py'),
('LegendItem', 'Legend.py'),
('Text Item', 'text.py'),
('Linked Views', 'linkedViews.py'),
('Arrow', 'Arrow.py'),
('ViewBox', 'ViewBox.py'),
('Custom Graphics', 'customGraphicsItem.py'),
])),
('Benchmarks', OrderedDict([
('Video speed test', 'VideoSpeedTest.py'),
('Line Plot update', 'PlotSpeedTest.py'),
('Scatter Plot update', 'ScatterPlotSpeedTest.py'),
('Multiple plots', 'MultiPlotSpeedTest.py'),
])),
('3D Graphics', OrderedDict([
('Volumetric', 'GLVolumeItem.py'),
('Isosurface', 'GLIsosurface.py'),
('Surface Plot', 'GLSurfacePlot.py'),
('Scatter Plot', 'GLScatterPlotItem.py'),
('Shaders', 'GLshaders.py'),
('Line Plot', 'GLLinePlotItem.py'),
('Mesh', 'GLMeshItem.py'),
('Image', 'GLImageItem.py'),
])),
('Widgets', OrderedDict([
('PlotWidget', 'PlotWidget.py'),
('SpinBox', 'SpinBox.py'),
('ConsoleWidget', 'ConsoleWidget.py'),
('Histogram / lookup table', 'HistogramLUT.py'),
('TreeWidget', 'TreeWidget.py'),
('DataTreeWidget', 'DataTreeWidget.py'),
('GradientWidget', 'GradientWidget.py'),
('TableWidget', 'TableWidget.py'),
('ColorButton', 'ColorButton.py'),
#('CheckTable', '../widgets/CheckTable.py'),
#('VerticalLabel', '../widgets/VerticalLabel.py'),
('JoystickButton', 'JoystickButton.py'),
])),
#('GraphicsScene', 'GraphicsScene.py'),
('Flowcharts', 'Flowchart.py'),
('Custom Flowchart Nodes', 'FlowchartCustomNode.py'),
#('Canvas', '../canvas'),
#('MultiPlotWidget', 'MultiPlotWidget.py'),
])
path = os.path.abspath(os.path.dirname(__file__))
class ExampleLoader(QtGui.QMainWindow):
def __init__(self):
QtGui.QMainWindow.__init__(self)
@ -123,20 +45,9 @@ class ExampleLoader(QtGui.QMainWindow):
self.ui.loadBtn.clicked.connect(self.loadFile)
self.ui.exampleTree.currentItemChanged.connect(self.showFile)
self.ui.exampleTree.itemDoubleClicked.connect(self.loadFile)
self.ui.pyqtCheck.toggled.connect(self.pyqtToggled)
self.ui.pysideCheck.toggled.connect(self.pysideToggled)
self.ui.codeView.textChanged.connect(self.codeEdited)
self.codeBtn.clicked.connect(self.runEditedCode)
def pyqtToggled(self, b):
if b:
self.ui.pysideCheck.setChecked(False)
def pysideToggled(self, b):
if b:
self.ui.pyqtCheck.setChecked(False)
def populateTree(self, root, examples):
for key, val in examples.items():
item = QtGui.QTreeWidgetItem([key])
@ -149,7 +60,6 @@ class ExampleLoader(QtGui.QMainWindow):
self.populateTree(item, val)
root.addChild(item)
def currentFile(self):
item = self.ui.exampleTree.currentItem()
if hasattr(item, 'file'):
@ -160,19 +70,13 @@ class ExampleLoader(QtGui.QMainWindow):
def loadFile(self, edited=False):
extra = []
if self.ui.pyqtCheck.isChecked():
extra.append('pyqt')
elif self.ui.pysideCheck.isChecked():
extra.append('pyside')
qtLib = str(self.ui.qtLibCombo.currentText())
gfxSys = str(self.ui.graphicsSystemCombo.currentText())
if self.ui.forceGraphicsCheck.isChecked():
extra.append(str(self.ui.forceGraphicsCombo.currentText()))
#if sys.platform.startswith('win'):
#os.spawnl(os.P_NOWAIT, sys.executable, '"'+sys.executable+'"', '"' + fn + '"', *extra)
#else:
#os.spawnl(os.P_NOWAIT, sys.executable, sys.executable, fn, *extra)
if qtLib != 'default':
extra.append(qtLib.lower())
elif gfxSys != 'default':
extra.append(gfxSys)
if edited:
path = os.path.abspath(os.path.dirname(__file__))
@ -213,93 +117,21 @@ def run():
app.exec_()
def buildFileList(examples, files=None):
if files == None:
files = []
for key, val in examples.items():
#item = QtGui.QTreeWidgetItem([key])
if isinstance(val, basestring):
#item.file = val
files.append((key,val))
else:
buildFileList(val, files)
return files
def testFile(name, f, exe, lib, graphicsSystem=None):
global path
fn = os.path.join(path,f)
#print "starting process: ", fn
os.chdir(path)
sys.stdout.write(name)
sys.stdout.flush()
import1 = "import %s" % lib if lib != '' else ''
import2 = os.path.splitext(os.path.split(fn)[1])[0]
graphicsSystem = '' if graphicsSystem is None else "pg.QtGui.QApplication.setGraphicsSystem('%s')" % graphicsSystem
code = """
try:
%s
import initExample
import pyqtgraph as pg
%s
import %s
import sys
print("test complete")
sys.stdout.flush()
import time
while True: ## run a little event loop
pg.QtGui.QApplication.processEvents()
time.sleep(0.01)
except:
print("test failed")
raise
""" % (import1, graphicsSystem, import2)
if sys.platform.startswith('win'):
process = subprocess.Popen([exe], stdin=subprocess.PIPE, stderr=subprocess.PIPE, stdout=subprocess.PIPE)
process.stdin.write(code.encode('UTF-8'))
process.stdin.close()
else:
process = subprocess.Popen(['exec %s -i' % (exe)], shell=True, stdin=subprocess.PIPE, stderr=subprocess.PIPE, stdout=subprocess.PIPE)
process.stdin.write(code.encode('UTF-8'))
process.stdin.close() ##?
output = ''
fail = False
while True:
c = process.stdout.read(1).decode()
output += c
#sys.stdout.write(c)
#sys.stdout.flush()
if output.endswith('test complete'):
break
if output.endswith('test failed'):
fail = True
break
time.sleep(1)
process.kill()
#res = process.communicate()
res = (process.stdout.read(), process.stderr.read())
if fail or 'exception' in res[1].decode().lower() or 'error' in res[1].decode().lower():
print('.' * (50-len(name)) + 'FAILED')
print(res[0].decode())
print(res[1].decode())
else:
print('.' * (50-len(name)) + 'passed')
if __name__ == '__main__':
if '--test' in sys.argv[1:]:
args = sys.argv[1:]
if '--test' in args:
# get rid of orphaned cache files first
pg.renamePyc(path)
files = buildFileList(examples)
if '--pyside' in sys.argv[1:]:
if '--pyside' in args:
lib = 'PySide'
elif '--pyqt' in sys.argv[1:]:
elif '--pyqt' in args or '--pyqt4' in args:
lib = 'PyQt4'
elif '--pyqt5' in args:
lib = 'PyQt5'
else:
lib = ''

110
examples/exampleLoaderTemplate.ui
View File

@ -6,28 +6,22 @@
<rect>
<x>0</x>
<y>0</y>
<width>623</width>
<height>380</height>
<width>846</width>
<height>552</height>
</rect>
</property>
<property name="windowTitle">
<string>Form</string>
</property>
<layout class="QGridLayout" name="gridLayout">
<property name="margin">
<number>0</number>
</property>
<property name="spacing">
<number>0</number>
</property>
<layout class="QGridLayout" name="gridLayout_2">
<item row="0" column="0">
<widget class="QSplitter" name="splitter">
<property name="orientation">
<enum>Qt::Horizontal</enum>
</property>
<widget class="QWidget" name="">
<layout class="QVBoxLayout" name="verticalLayout">
<item>
<layout class="QGridLayout" name="gridLayout">
<item row="0" column="0" colspan="2">
<widget class="QTreeWidget" name="exampleTree">
<attribute name="headerVisible">
<bool>false</bool>
@ -39,55 +33,69 @@
</column>
</widget>
</item>
<item>
<layout class="QHBoxLayout" name="horizontalLayout">
<item row="2" column="1">
<widget class="QComboBox" name="graphicsSystemCombo">
<item>
<widget class="QCheckBox" name="pyqtCheck">
<property name="text">
<string>Force PyQt</string>
</property>
</widget>
<property name="text">
<string>default</string>
</property>
</item>
<item>
<widget class="QCheckBox" name="pysideCheck">
<property name="text">
<string>Force PySide</string>
</property>
</widget>
<property name="text">
<string>native</string>
</property>
</item>
</layout>
<item>
<property name="text">
<string>raster</string>
</property>
</item>
<item>
<property name="text">
<string>opengl</string>
</property>
</item>
</widget>
</item>
<item>
<layout class="QHBoxLayout" name="horizontalLayout_2">
<item row="1" column="1">
<widget class="QComboBox" name="qtLibCombo">
<item>
<widget class="QCheckBox" name="forceGraphicsCheck">
<property name="text">
<string>Force Graphics System:</string>
</property>
</widget>
<property name="text">
<string>default</string>
</property>
</item>
<item>
<widget class="QComboBox" name="forceGraphicsCombo">
<item>
<property name="text">
<string>native</string>
</property>
</item>
<item>
<property name="text">
<string>raster</string>
</property>
</item>
<item>
<property name="text">
<string>opengl</string>
</property>
</item>
</widget>
<property name="text">
<string>PyQt4</string>
</property>
</item>
</layout>
<item>
<property name="text">
<string>PySide</string>
</property>
</item>
<item>
<property name="text">
<string>PyQt5</string>
</property>
</item>
</widget>
</item>
<item>
<item row="2" column="0">
<widget class="QLabel" name="label_2">
<property name="text">
<string>Graphics System:</string>
</property>
</widget>
</item>
<item row="1" column="0">
<widget class="QLabel" name="label">
<property name="text">
<string>Qt Library:</string>
</property>
</widget>
</item>
<item row="3" column="1">
<widget class="QPushButton" name="loadBtn">
<property name="text">
<string>Run Example</string>
@ -97,7 +105,7 @@
</layout>
</widget>
<widget class="QWidget" name="">
<layout class="QVBoxLayout" name="verticalLayout_2">
<layout class="QVBoxLayout" name="verticalLayout">
<item>
<widget class="QLabel" name="loadedFileLabel">
<property name="font">

108
examples/exampleLoaderTemplate_pyqt.py
View File

@ -1,9 +1,9 @@
# -*- coding: utf-8 -*-
# Form implementation generated from reading ui file './exampleLoaderTemplate.ui'
# Form implementation generated from reading ui file 'exampleLoaderTemplate.ui'
#
# Created: Mon Feb 25 09:02:09 2013
# by: PyQt4 UI code generator 4.9.3
# Created: Sat Feb 28 10:30:29 2015
# by: PyQt4 UI code generator 4.10.4
#
# WARNING! All changes made in this file will be lost!
@ -12,58 +12,64 @@ from PyQt4 import QtCore, QtGui
try:
_fromUtf8 = QtCore.QString.fromUtf8
except AttributeError:
_fromUtf8 = lambda s: s
def _fromUtf8(s):
return s
try:
_encoding = QtGui.QApplication.UnicodeUTF8
def _translate(context, text, disambig):
return QtGui.QApplication.translate(context, text, disambig, _encoding)
except AttributeError:
def _translate(context, text, disambig):
return QtGui.QApplication.translate(context, text, disambig)
class Ui_Form(object):
def setupUi(self, Form):
Form.setObjectName(_fromUtf8("Form"))
Form.resize(623, 380)
self.gridLayout = QtGui.QGridLayout(Form)
self.gridLayout.setMargin(0)
self.gridLayout.setSpacing(0)
self.gridLayout.setObjectName(_fromUtf8("gridLayout"))
Form.resize(846, 552)
self.gridLayout_2 = QtGui.QGridLayout(Form)
self.gridLayout_2.setObjectName(_fromUtf8("gridLayout_2"))
self.splitter = QtGui.QSplitter(Form)
self.splitter.setOrientation(QtCore.Qt.Horizontal)
self.splitter.setObjectName(_fromUtf8("splitter"))
self.widget = QtGui.QWidget(self.splitter)
self.widget.setObjectName(_fromUtf8("widget"))
self.verticalLayout = QtGui.QVBoxLayout(self.widget)
self.verticalLayout.setMargin(0)
self.verticalLayout.setObjectName(_fromUtf8("verticalLayout"))
self.gridLayout = QtGui.QGridLayout(self.widget)
self.gridLayout.setMargin(0)
self.gridLayout.setObjectName(_fromUtf8("gridLayout"))
self.exampleTree = QtGui.QTreeWidget(self.widget)
self.exampleTree.setObjectName(_fromUtf8("exampleTree"))
self.exampleTree.headerItem().setText(0, _fromUtf8("1"))
self.exampleTree.header().setVisible(False)
self.verticalLayout.addWidget(self.exampleTree)
self.horizontalLayout = QtGui.QHBoxLayout()
self.horizontalLayout.setObjectName(_fromUtf8("horizontalLayout"))
self.pyqtCheck = QtGui.QCheckBox(self.widget)
self.pyqtCheck.setObjectName(_fromUtf8("pyqtCheck"))
self.horizontalLayout.addWidget(self.pyqtCheck)
self.pysideCheck = QtGui.QCheckBox(self.widget)
self.pysideCheck.setObjectName(_fromUtf8("pysideCheck"))
self.horizontalLayout.addWidget(self.pysideCheck)
self.verticalLayout.addLayout(self.horizontalLayout)
self.horizontalLayout_2 = QtGui.QHBoxLayout()
self.horizontalLayout_2.setObjectName(_fromUtf8("horizontalLayout_2"))
self.forceGraphicsCheck = QtGui.QCheckBox(self.widget)
self.forceGraphicsCheck.setObjectName(_fromUtf8("forceGraphicsCheck"))
self.horizontalLayout_2.addWidget(self.forceGraphicsCheck)
self.forceGraphicsCombo = QtGui.QComboBox(self.widget)
self.forceGraphicsCombo.setObjectName(_fromUtf8("forceGraphicsCombo"))
self.forceGraphicsCombo.addItem(_fromUtf8(""))
self.forceGraphicsCombo.addItem(_fromUtf8(""))
self.forceGraphicsCombo.addItem(_fromUtf8(""))
self.horizontalLayout_2.addWidget(self.forceGraphicsCombo)
self.verticalLayout.addLayout(self.horizontalLayout_2)
self.gridLayout.addWidget(self.exampleTree, 0, 0, 1, 2)
self.graphicsSystemCombo = QtGui.QComboBox(self.widget)
self.graphicsSystemCombo.setObjectName(_fromUtf8("graphicsSystemCombo"))
self.graphicsSystemCombo.addItem(_fromUtf8(""))
self.graphicsSystemCombo.addItem(_fromUtf8(""))
self.graphicsSystemCombo.addItem(_fromUtf8(""))
self.graphicsSystemCombo.addItem(_fromUtf8(""))
self.gridLayout.addWidget(self.graphicsSystemCombo, 2, 1, 1, 1)
self.qtLibCombo = QtGui.QComboBox(self.widget)
self.qtLibCombo.setObjectName(_fromUtf8("qtLibCombo"))
self.qtLibCombo.addItem(_fromUtf8(""))
self.qtLibCombo.addItem(_fromUtf8(""))
self.qtLibCombo.addItem(_fromUtf8(""))
self.qtLibCombo.addItem(_fromUtf8(""))
self.gridLayout.addWidget(self.qtLibCombo, 1, 1, 1, 1)
self.label_2 = QtGui.QLabel(self.widget)
self.label_2.setObjectName(_fromUtf8("label_2"))
self.gridLayout.addWidget(self.label_2, 2, 0, 1, 1)
self.label = QtGui.QLabel(self.widget)
self.label.setObjectName(_fromUtf8("label"))
self.gridLayout.addWidget(self.label, 1, 0, 1, 1)
self.loadBtn = QtGui.QPushButton(self.widget)
self.loadBtn.setObjectName(_fromUtf8("loadBtn"))
self.verticalLayout.addWidget(self.loadBtn)
self.gridLayout.addWidget(self.loadBtn, 3, 1, 1, 1)
self.widget1 = QtGui.QWidget(self.splitter)
self.widget1.setObjectName(_fromUtf8("widget1"))
self.verticalLayout_2 = QtGui.QVBoxLayout(self.widget1)
self.verticalLayout_2.setMargin(0)
self.verticalLayout_2.setObjectName(_fromUtf8("verticalLayout_2"))
self.verticalLayout = QtGui.QVBoxLayout(self.widget1)
self.verticalLayout.setMargin(0)
self.verticalLayout.setObjectName(_fromUtf8("verticalLayout"))
self.loadedFileLabel = QtGui.QLabel(self.widget1)
font = QtGui.QFont()
font.setBold(True)
@ -72,25 +78,29 @@ class Ui_Form(object):
self.loadedFileLabel.setText(_fromUtf8(""))
self.loadedFileLabel.setAlignment(QtCore.Qt.AlignCenter)
self.loadedFileLabel.setObjectName(_fromUtf8("loadedFileLabel"))
self.verticalLayout_2.addWidget(self.loadedFileLabel)
self.verticalLayout.addWidget(self.loadedFileLabel)
self.codeView = QtGui.QPlainTextEdit(self.widget1)
font = QtGui.QFont()
font.setFamily(_fromUtf8("FreeMono"))
self.codeView.setFont(font)
self.codeView.setObjectName(_fromUtf8("codeView"))
self.verticalLayout_2.addWidget(self.codeView)
self.gridLayout.addWidget(self.splitter, 0, 0, 1, 1)
self.verticalLayout.addWidget(self.codeView)
self.gridLayout_2.addWidget(self.splitter, 0, 0, 1, 1)
self.retranslateUi(Form)
QtCore.QMetaObject.connectSlotsByName(Form)
def retranslateUi(self, Form):
Form.setWindowTitle(QtGui.QApplication.translate("Form", "Form", None, QtGui.QApplication.UnicodeUTF8))
self.pyqtCheck.setText(QtGui.QApplication.translate("Form", "Force PyQt", None, QtGui.QApplication.UnicodeUTF8))
self.pysideCheck.setText(QtGui.QApplication.translate("Form", "Force PySide", None, QtGui.QApplication.UnicodeUTF8))
self.forceGraphicsCheck.setText(QtGui.QApplication.translate("Form", "Force Graphics System:", None, QtGui.QApplication.UnicodeUTF8))
self.forceGraphicsCombo.setItemText(0, QtGui.QApplication.translate("Form", "native", None, QtGui.QApplication.UnicodeUTF8))
self.forceGraphicsCombo.setItemText(1, QtGui.QApplication.translate("Form", "raster", None, QtGui.QApplication.UnicodeUTF8))
self.forceGraphicsCombo.setItemText(2, QtGui.QApplication.translate("Form", "opengl", None, QtGui.QApplication.UnicodeUTF8))
self.loadBtn.setText(QtGui.QApplication.translate("Form", "Run Example", None, QtGui.QApplication.UnicodeUTF8))
Form.setWindowTitle(_translate("Form", "Form", None))
self.graphicsSystemCombo.setItemText(0, _translate("Form", "default", None))
self.graphicsSystemCombo.setItemText(1, _translate("Form", "native", None))
self.graphicsSystemCombo.setItemText(2, _translate("Form", "raster", None))
self.graphicsSystemCombo.setItemText(3, _translate("Form", "opengl", None))
self.qtLibCombo.setItemText(0, _translate("Form", "default", None))
self.qtLibCombo.setItemText(1, _translate("Form", "PyQt4", None))
self.qtLibCombo.setItemText(2, _translate("Form", "PySide", None))
self.qtLibCombo.setItemText(3, _translate("Form", "PyQt5", None))
self.label_2.setText(_translate("Form", "Graphics System:", None))
self.label.setText(_translate("Form", "Qt Library:", None))
self.loadBtn.setText(_translate("Form", "Run Example", None))

93
examples/exampleLoaderTemplate_pyqt5.py Normal file
View File

@ -0,0 +1,93 @@
# -*- coding: utf-8 -*-
# Form implementation generated from reading ui file 'exampleLoaderTemplate.ui'
#
# Created: Sat Feb 28 10:28:50 2015
# by: PyQt5 UI code generator 5.2.1
#
# WARNING! All changes made in this file will be lost!
from PyQt5 import QtCore, QtGui, QtWidgets
class Ui_Form(object):
def setupUi(self, Form):
Form.setObjectName("Form")
Form.resize(846, 552)
self.gridLayout_2 = QtWidgets.QGridLayout(Form)
self.gridLayout_2.setObjectName("gridLayout_2")
self.splitter = QtWidgets.QSplitter(Form)
self.splitter.setOrientation(QtCore.Qt.Horizontal)
self.splitter.setObjectName("splitter")
self.widget = QtWidgets.QWidget(self.splitter)
self.widget.setObjectName("widget")
self.gridLayout = QtWidgets.QGridLayout(self.widget)
self.gridLayout.setContentsMargins(0, 0, 0, 0)
self.gridLayout.setObjectName("gridLayout")
self.exampleTree = QtWidgets.QTreeWidget(self.widget)
self.exampleTree.setObjectName("exampleTree")
self.exampleTree.headerItem().setText(0, "1")
self.exampleTree.header().setVisible(False)
self.gridLayout.addWidget(self.exampleTree, 0, 0, 1, 2)
self.graphicsSystemCombo = QtWidgets.QComboBox(self.widget)
self.graphicsSystemCombo.setObjectName("graphicsSystemCombo")
self.graphicsSystemCombo.addItem("")
self.graphicsSystemCombo.addItem("")
self.graphicsSystemCombo.addItem("")
self.graphicsSystemCombo.addItem("")
self.gridLayout.addWidget(self.graphicsSystemCombo, 2, 1, 1, 1)
self.qtLibCombo = QtWidgets.QComboBox(self.widget)
self.qtLibCombo.setObjectName("qtLibCombo")
self.qtLibCombo.addItem("")
self.qtLibCombo.addItem("")
self.qtLibCombo.addItem("")
self.qtLibCombo.addItem("")
self.gridLayout.addWidget(self.qtLibCombo, 1, 1, 1, 1)
self.label_2 = QtWidgets.QLabel(self.widget)
self.label_2.setObjectName("label_2")
self.gridLayout.addWidget(self.label_2, 2, 0, 1, 1)
self.label = QtWidgets.QLabel(self.widget)
self.label.setObjectName("label")
self.gridLayout.addWidget(self.label, 1, 0, 1, 1)
self.loadBtn = QtWidgets.QPushButton(self.widget)
self.loadBtn.setObjectName("loadBtn")
self.gridLayout.addWidget(self.loadBtn, 3, 1, 1, 1)
self.widget1 = QtWidgets.QWidget(self.splitter)
self.widget1.setObjectName("widget1")
self.verticalLayout = QtWidgets.QVBoxLayout(self.widget1)
self.verticalLayout.setContentsMargins(0, 0, 0, 0)
self.verticalLayout.setObjectName("verticalLayout")
self.loadedFileLabel = QtWidgets.QLabel(self.widget1)
font = QtGui.QFont()
font.setBold(True)
font.setWeight(75)
self.loadedFileLabel.setFont(font)
self.loadedFileLabel.setText("")
self.loadedFileLabel.setAlignment(QtCore.Qt.AlignCenter)
self.loadedFileLabel.setObjectName("loadedFileLabel")
self.verticalLayout.addWidget(self.loadedFileLabel)
self.codeView = QtWidgets.QPlainTextEdit(self.widget1)
font = QtGui.QFont()
font.setFamily("FreeMono")
self.codeView.setFont(font)
self.codeView.setObjectName("codeView")
self.verticalLayout.addWidget(self.codeView)
self.gridLayout_2.addWidget(self.splitter, 0, 0, 1, 1)
self.retranslateUi(Form)
QtCore.QMetaObject.connectSlotsByName(Form)
def retranslateUi(self, Form):
_translate = QtCore.QCoreApplication.translate
Form.setWindowTitle(_translate("Form", "Form"))
self.graphicsSystemCombo.setItemText(0, _translate("Form", "default"))
self.graphicsSystemCombo.setItemText(1, _translate("Form", "native"))
self.graphicsSystemCombo.setItemText(2, _translate("Form", "raster"))
self.graphicsSystemCombo.setItemText(3, _translate("Form", "opengl"))
self.qtLibCombo.setItemText(0, _translate("Form", "default"))
self.qtLibCombo.setItemText(1, _translate("Form", "PyQt4"))
self.qtLibCombo.setItemText(2, _translate("Form", "PySide"))
self.qtLibCombo.setItemText(3, _translate("Form", "PyQt5"))
self.label_2.setText(_translate("Form", "Graphics System:"))
self.label.setText(_translate("Form", "Qt Library:"))
self.loadBtn.setText(_translate("Form", "Run Example"))

93
examples/exampleLoaderTemplate_pyside.py
View File

@ -1,9 +1,9 @@
# -*- coding: utf-8 -*-
# Form implementation generated from reading ui file './exampleLoaderTemplate.ui'
# Form implementation generated from reading ui file 'exampleLoaderTemplate.ui'
#
# Created: Mon Feb 25 09:02:09 2013
# by: pyside-uic 0.2.13 running on PySide 1.1.1
# Created: Sat Feb 28 10:31:57 2015
# by: pyside-uic 0.2.15 running on PySide 1.2.1
#
# WARNING! All changes made in this file will be lost!
@ -12,53 +12,50 @@ from PySide import QtCore, QtGui
class Ui_Form(object):
def setupUi(self, Form):
Form.setObjectName("Form")
Form.resize(623, 380)
self.gridLayout = QtGui.QGridLayout(Form)
self.gridLayout.setContentsMargins(0, 0, 0, 0)
self.gridLayout.setSpacing(0)
self.gridLayout.setObjectName("gridLayout")
Form.resize(846, 552)
self.gridLayout_2 = QtGui.QGridLayout(Form)
self.gridLayout_2.setObjectName("gridLayout_2")
self.splitter = QtGui.QSplitter(Form)
self.splitter.setOrientation(QtCore.Qt.Horizontal)
self.splitter.setObjectName("splitter")
self.widget = QtGui.QWidget(self.splitter)
self.widget.setObjectName("widget")
self.verticalLayout = QtGui.QVBoxLayout(self.widget)
self.verticalLayout.setContentsMargins(0, 0, 0, 0)
self.verticalLayout.setObjectName("verticalLayout")
self.gridLayout = QtGui.QGridLayout(self.widget)
self.gridLayout.setContentsMargins(0, 0, 0, 0)
self.gridLayout.setObjectName("gridLayout")
self.exampleTree = QtGui.QTreeWidget(self.widget)
self.exampleTree.setObjectName("exampleTree")
self.exampleTree.headerItem().setText(0, "1")
self.exampleTree.header().setVisible(False)
self.verticalLayout.addWidget(self.exampleTree)
self.horizontalLayout = QtGui.QHBoxLayout()
self.horizontalLayout.setObjectName("horizontalLayout")
self.pyqtCheck = QtGui.QCheckBox(self.widget)
self.pyqtCheck.setObjectName("pyqtCheck")
self.horizontalLayout.addWidget(self.pyqtCheck)
self.pysideCheck = QtGui.QCheckBox(self.widget)
self.pysideCheck.setObjectName("pysideCheck")
self.horizontalLayout.addWidget(self.pysideCheck)
self.verticalLayout.addLayout(self.horizontalLayout)
self.horizontalLayout_2 = QtGui.QHBoxLayout()
self.horizontalLayout_2.setObjectName("horizontalLayout_2")
self.forceGraphicsCheck = QtGui.QCheckBox(self.widget)
self.forceGraphicsCheck.setObjectName("forceGraphicsCheck")
self.horizontalLayout_2.addWidget(self.forceGraphicsCheck)
self.forceGraphicsCombo = QtGui.QComboBox(self.widget)
self.forceGraphicsCombo.setObjectName("forceGraphicsCombo")
self.forceGraphicsCombo.addItem("")
self.forceGraphicsCombo.addItem("")
self.forceGraphicsCombo.addItem("")
self.horizontalLayout_2.addWidget(self.forceGraphicsCombo)
self.verticalLayout.addLayout(self.horizontalLayout_2)
self.gridLayout.addWidget(self.exampleTree, 0, 0, 1, 2)
self.graphicsSystemCombo = QtGui.QComboBox(self.widget)
self.graphicsSystemCombo.setObjectName("graphicsSystemCombo")
self.graphicsSystemCombo.addItem("")
self.graphicsSystemCombo.addItem("")
self.graphicsSystemCombo.addItem("")
self.graphicsSystemCombo.addItem("")
self.gridLayout.addWidget(self.graphicsSystemCombo, 2, 1, 1, 1)
self.qtLibCombo = QtGui.QComboBox(self.widget)
self.qtLibCombo.setObjectName("qtLibCombo")
self.qtLibCombo.addItem("")
self.qtLibCombo.addItem("")
self.qtLibCombo.addItem("")
self.qtLibCombo.addItem("")
self.gridLayout.addWidget(self.qtLibCombo, 1, 1, 1, 1)
self.label_2 = QtGui.QLabel(self.widget)
self.label_2.setObjectName("label_2")
self.gridLayout.addWidget(self.label_2, 2, 0, 1, 1)
self.label = QtGui.QLabel(self.widget)
self.label.setObjectName("label")
self.gridLayout.addWidget(self.label, 1, 0, 1, 1)
self.loadBtn = QtGui.QPushButton(self.widget)
self.loadBtn.setObjectName("loadBtn")
self.verticalLayout.addWidget(self.loadBtn)
self.gridLayout.addWidget(self.loadBtn, 3, 1, 1, 1)
self.widget1 = QtGui.QWidget(self.splitter)
self.widget1.setObjectName("widget1")
self.verticalLayout_2 = QtGui.QVBoxLayout(self.widget1)
self.verticalLayout_2.setContentsMargins(0, 0, 0, 0)
self.verticalLayout_2.setObjectName("verticalLayout_2")
self.verticalLayout = QtGui.QVBoxLayout(self.widget1)
self.verticalLayout.setContentsMargins(0, 0, 0, 0)
self.verticalLayout.setObjectName("verticalLayout")
self.loadedFileLabel = QtGui.QLabel(self.widget1)
font = QtGui.QFont()
font.setWeight(75)
@ -67,25 +64,29 @@ class Ui_Form(object):
self.loadedFileLabel.setText("")
self.loadedFileLabel.setAlignment(QtCore.Qt.AlignCenter)
self.loadedFileLabel.setObjectName("loadedFileLabel")
self.verticalLayout_2.addWidget(self.loadedFileLabel)
self.verticalLayout.addWidget(self.loadedFileLabel)
self.codeView = QtGui.QPlainTextEdit(self.widget1)
font = QtGui.QFont()
font.setFamily("FreeMono")
self.codeView.setFont(font)
self.codeView.setObjectName("codeView")
self.verticalLayout_2.addWidget(self.codeView)
self.gridLayout.addWidget(self.splitter, 0, 0, 1, 1)
self.verticalLayout.addWidget(self.codeView)
self.gridLayout_2.addWidget(self.splitter, 0, 0, 1, 1)
self.retranslateUi(Form)
QtCore.QMetaObject.connectSlotsByName(Form)
def retranslateUi(self, Form):
Form.setWindowTitle(QtGui.QApplication.translate("Form", "Form", None, QtGui.QApplication.UnicodeUTF8))
self.pyqtCheck.setText(QtGui.QApplication.translate("Form", "Force PyQt", None, QtGui.QApplication.UnicodeUTF8))
self.pysideCheck.setText(QtGui.QApplication.translate("Form", "Force PySide", None, QtGui.QApplication.UnicodeUTF8))
self.forceGraphicsCheck.setText(QtGui.QApplication.translate("Form", "Force Graphics System:", None, QtGui.QApplication.UnicodeUTF8))
self.forceGraphicsCombo.setItemText(0, QtGui.QApplication.translate("Form", "native", None, QtGui.QApplication.UnicodeUTF8))
self.forceGraphicsCombo.setItemText(1, QtGui.QApplication.translate("Form", "raster", None, QtGui.QApplication.UnicodeUTF8))
self.forceGraphicsCombo.setItemText(2, QtGui.QApplication.translate("Form", "opengl", None, QtGui.QApplication.UnicodeUTF8))
self.graphicsSystemCombo.setItemText(0, QtGui.QApplication.translate("Form", "default", None, QtGui.QApplication.UnicodeUTF8))
self.graphicsSystemCombo.setItemText(1, QtGui.QApplication.translate("Form", "native", None, QtGui.QApplication.UnicodeUTF8))
self.graphicsSystemCombo.setItemText(2, QtGui.QApplication.translate("Form", "raster", None, QtGui.QApplication.UnicodeUTF8))
self.graphicsSystemCombo.setItemText(3, QtGui.QApplication.translate("Form", "opengl", None, QtGui.QApplication.UnicodeUTF8))
self.qtLibCombo.setItemText(0, QtGui.QApplication.translate("Form", "default", None, QtGui.QApplication.UnicodeUTF8))
self.qtLibCombo.setItemText(1, QtGui.QApplication.translate("Form", "PyQt4", None, QtGui.QApplication.UnicodeUTF8))
self.qtLibCombo.setItemText(2, QtGui.QApplication.translate("Form", "PySide", None, QtGui.QApplication.UnicodeUTF8))
self.qtLibCombo.setItemText(3, QtGui.QApplication.translate("Form", "PyQt5", None, QtGui.QApplication.UnicodeUTF8))
self.label_2.setText(QtGui.QApplication.translate("Form", "Graphics System:", None, QtGui.QApplication.UnicodeUTF8))
self.label.setText(QtGui.QApplication.translate("Form", "Qt Library:", None, QtGui.QApplication.UnicodeUTF8))
self.loadBtn.setText(QtGui.QApplication.translate("Form", "Run Example", None, QtGui.QApplication.UnicodeUTF8))

6
examples/hdf5.py
View File

@ -14,11 +14,11 @@ to avoid re-reading the entire visible waveform at every update.
import initExample ## Add path to library (just for examples; you do not need this)
import pyqtgraph as pg
from pyqtgraph.Qt import QtCore, QtGui
import sys, os
import numpy as np
import h5py
import sys, os
import pyqtgraph as pg
from pyqtgraph.Qt import QtCore, QtGui
pg.mkQApp()

11
examples/imageAnalysis.py
View File

@ -12,8 +12,11 @@ import pyqtgraph as pg
from pyqtgraph.Qt import QtCore, QtGui
import numpy as np
pg.mkQApp()
# Interpret image data as row-major instead of col-major
pg.setConfigOptions(imageAxisOrder='row-major')
pg.mkQApp()
win = pg.GraphicsLayoutWidget()
win.setWindowTitle('pyqtgraph example: Image Analysis')
@ -57,10 +60,10 @@ win.show()
# Generate image data
data = np.random.normal(size=(100, 200))
data = np.random.normal(size=(200, 100))
data[20:80, 20:80] += 2.
data = pg.gaussianFilter(data, (3, 3))
data += np.random.normal(size=(100, 200)) * 0.1
data += np.random.normal(size=(200, 100)) * 0.1
img.setImage(data)
hist.setLevels(data.min(), data.max())
@ -79,7 +82,7 @@ p1.autoRange()
def updatePlot():
global img, roi, data, p2
selected = roi.getArrayRegion(data, img)
p2.plot(selected.mean(axis=1), clear=True)
p2.plot(selected.mean(axis=0), clear=True)
roi.sigRegionChanged.connect(updatePlot)
updatePlot()

52
examples/infiniteline_performance.py Normal file
View File

@ -0,0 +1,52 @@
#!/usr/bin/python
import initExample ## Add path to library (just for examples; you do not need this)
from pyqtgraph.Qt import QtGui, QtCore
import numpy as np
import pyqtgraph as pg
from pyqtgraph.ptime import time
app = QtGui.QApplication([])
p = pg.plot()
p.setWindowTitle('pyqtgraph performance: InfiniteLine')
p.setRange(QtCore.QRectF(0, -10, 5000, 20))
p.setLabel('bottom', 'Index', units='B')
curve = p.plot()
# Add a large number of horizontal InfiniteLine to plot
for i in range(100):
line = pg.InfiniteLine(pos=np.random.randint(5000), movable=True)
p.addItem(line)
data = np.random.normal(size=(50, 5000))
ptr = 0
lastTime = time()
fps = None
def update():
global curve, data, ptr, p, lastTime, fps
curve.setData(data[ptr % 10])
ptr += 1
now = time()
dt = now - lastTime
lastTime = now
if fps is None:
fps = 1.0/dt
else:
s = np.clip(dt*3., 0, 1)
fps = fps * (1-s) + (1.0/dt) * s
p.setTitle('%0.2f fps' % fps)
app.processEvents() # force complete redraw for every plot
timer = QtCore.QTimer()
timer.timeout.connect(update)
timer.start(0)
# Start Qt event loop unless running in interactive mode.
if __name__ == '__main__':
import sys
if (sys.flags.interactive != 1) or not hasattr(QtCore, 'PYQT_VERSION'):
QtGui.QApplication.instance().exec_()

8
examples/initExample.py
View File

@ -24,15 +24,23 @@ if 'pyside' in sys.argv:
from PySide import QtGui
elif 'pyqt' in sys.argv:
from PyQt4 import QtGui
elif 'pyqt5' in sys.argv:
from PyQt5 import QtGui
else:
from pyqtgraph.Qt import QtGui
import pyqtgraph as pg
## Force use of a specific graphics system
use_gs = 'default'
for gs in ['raster', 'native', 'opengl']:
if gs in sys.argv:
use_gs = gs
QtGui.QApplication.setGraphicsSystem(gs)
break
print("Using %s (%s graphics system)" % (pg.Qt.QT_LIB, use_gs))
## Enable fault handling to give more helpful error messages on crash.
## Only available in python 3.3+
try:

4
examples/multiplePlotSpeedTest.py
View File

@ -23,8 +23,8 @@ def plot():
pts = 100
x = np.linspace(0, 0.8, pts)
y = np.random.random(size=pts)*0.8
for i in xrange(n):
for j in xrange(n):
for i in range(n):
for j in range(n):
## calling PlotWidget.plot() generates a PlotDataItem, which
## has a bit more overhead than PlotCurveItem, which is all
## we need here. This overhead adds up quickly and makes a big

8
examples/optics/pyoptic.py
View File

@ -1,7 +1,6 @@
# -*- coding: utf-8 -*-
from PyQt4 import QtGui, QtCore
import pyqtgraph as pg
#from pyqtgraph.canvas import Canvas, CanvasItem
from pyqtgraph.Qt import QtGui, QtCore
import numpy as np
import csv, gzip, os
from pyqtgraph import Point
@ -90,7 +89,7 @@ def wlPen(wl):
return pen
class ParamObj:
class ParamObj(object):
# Just a helper for tracking parameters and responding to changes
def __init__(self):
self.__params = {}
@ -110,7 +109,8 @@ class ParamObj:
pass
def __getitem__(self, item):
return self.getParam(item)
# bug in pyside 1.2.2 causes getitem to be called inside QGraphicsObject.parentItem:
return self.getParam(item) # PySide bug: https://bugreports.qt.io/browse/PYSIDE-441
def getParam(self, param):
return self.__params[param]

4
examples/parallelize.py
View File

@ -1,9 +1,11 @@
# -*- coding: utf-8 -*-
import initExample ## Add path to library (just for examples; you do not need this)
import time
import numpy as np
import pyqtgraph.multiprocess as mp
import pyqtgraph as pg
import time
from pyqtgraph.python2_3 import xrange
print( "\n=================\nParallelize")

2
examples/parametertree.py
View File

@ -124,7 +124,7 @@ p.sigTreeStateChanged.connect(change)
def valueChanging(param, value):
print("Value changing (not finalized):", param, value)
print("Value changing (not finalized): %s %s" % (param, value))
# Too lazy for recursion:
for child in p.children():

2
examples/relativity/__init__.py
View File

@ -1 +1 @@
from relativity import *
from .relativity import *

21
examples/relativity/relativity.py
View File

@ -1,13 +1,12 @@
import numpy as np
import collections
import sys, os
import pyqtgraph as pg
from pyqtgraph.Qt import QtGui, QtCore
from pyqtgraph.parametertree import Parameter, ParameterTree
from pyqtgraph.parametertree import types as pTypes
import pyqtgraph.configfile
import numpy as np
import user
import collections
import sys, os
from pyqtgraph.python2_3 import xrange
class RelativityGUI(QtGui.QWidget):
@ -247,7 +246,7 @@ class GridParam(pTypes.GroupParameter):
template = self.param('ClockTemplate')
spacing = self['Spacing']
for i in range(self['Number of Clocks']):
c = template.buildClocks().values()[0]
c = list(template.buildClocks().values())[0]
c.x0 += i * spacing
clocks[self.name() + '%02d' % i] = c
return clocks
@ -502,7 +501,7 @@ class Simulation:
def run(self):
nPts = int(self.duration/self.dt)+1
for cl in self.clocks.itervalues():
for cl in self.clocks.values():
cl.init(nPts)
if self.ref is None:
@ -514,7 +513,7 @@ class Simulation:
clocks = self.clocks
dt = self.dt
tVals = np.linspace(0, dt*(nPts-1), nPts)
for cl in self.clocks.itervalues():
for cl in self.clocks.values():
for i in xrange(1,nPts):
nextT = tVals[i]
while True:
@ -549,7 +548,7 @@ class Simulation:
## make sure reference clock is not present in the list of clocks--this will be handled separately.
clocks = clocks.copy()
for k,v in clocks.iteritems():
for k,v in clocks.items():
if v is ref:
del clocks[k]
break
@ -586,7 +585,7 @@ class Simulation:
## update all other clocks
for cl in clocks.itervalues():
for cl in clocks.values():
while True:
g = cl.acceleration()
tau1, tau2 = cl.accelLimits()
@ -635,7 +634,7 @@ class Simulation:
def plot(self, plot):
plot.clear()
for cl in self.clocks.itervalues():
for cl in self.clocks.values():
c, p = cl.getCurve()
plot.addItem(c)
plot.addItem(p)

2
examples/template.py
View File

@ -11,6 +11,8 @@ import pyqtgraph as pg
from pyqtgraph.Qt import QtCore, QtGui
import numpy as np
app = QtGui.QApplication([])
# win.setWindowTitle('pyqtgraph example: ____')
## Start Qt event loop unless running in interactive mode or using pyside.

37
examples/test_examples.py Normal file
View File

@ -0,0 +1,37 @@
from __future__ import print_function, division, absolute_import
from pyqtgraph import Qt
from . import utils
import itertools
import pytest
# apparently importlib does not exist in python 2.6...
try:
import importlib
except ImportError:
# we are on python 2.6
print("If you want to test the examples, please install importlib from "
"pypi\n\npip install importlib\n\n")
pass
files = utils.buildFileList(utils.examples)
frontends = {Qt.PYQT4: False, Qt.PYSIDE: False}
# sort out which of the front ends are available
for frontend in frontends.keys():
try:
importlib.import_module(frontend)
frontends[frontend] = True
except ImportError:
pass
@pytest.mark.parametrize(
"frontend, f", itertools.product(sorted(list(frontends.keys())), files))
def test_examples(frontend, f):
# Test the examples with all available front-ends
print('frontend = %s. f = %s' % (frontend, f))
if not frontends[frontend]:
pytest.skip('%s is not installed. Skipping tests' % frontend)
utils.testFile(f[0], f[1], utils.sys.executable, frontend)
if __name__ == "__main__":
pytest.cmdline.main()

3
examples/text.py
View File

@ -23,7 +23,7 @@ plot.setWindowTitle('pyqtgraph example: text')
curve = plot.plot(x,y) ## add a single curve
## Create text object, use HTML tags to specify color/size
text = pg.TextItem(html='<div style="text-align: center"><span style="color: #FFF;">This is the</span><br><span style="color: #FF0; font-size: 16pt;">PEAK</span></div>', anchor=(-0.3,1.3), border='w', fill=(0, 0, 255, 100))
text = pg.TextItem(html='<div style="text-align: center"><span style="color: #FFF;">This is the</span><br><span style="color: #FF0; font-size: 16pt;">PEAK</span></div>', anchor=(-0.3,0.5), angle=45, border='w', fill=(0, 0, 255, 100))
plot.addItem(text)
text.setPos(0, y.max())
@ -46,7 +46,6 @@ def update():
global curvePoint, index
index = (index + 1) % len(x)
curvePoint.setPos(float(index)/(len(x)-1))
#text2.viewRangeChanged()
text2.setText('[%0.1f, %0.1f]' % (x[index], y[index]))
timer = QtCore.QTimer()

165
examples/utils.py Normal file
View File

@ -0,0 +1,165 @@
from __future__ import division, print_function, absolute_import
import subprocess
import time
import os
import sys
from pyqtgraph.pgcollections import OrderedDict
from pyqtgraph.python2_3 import basestring
path = os.path.abspath(os.path.dirname(__file__))
examples = OrderedDict([
('Command-line usage', 'CLIexample.py'),
('Basic Plotting', 'Plotting.py'),
('ImageView', 'ImageView.py'),
('ParameterTree', 'parametertree.py'),
('Crosshair / Mouse interaction', 'crosshair.py'),
('Data Slicing', 'DataSlicing.py'),
('Plot Customization', 'customPlot.py'),
('Image Analysis', 'imageAnalysis.py'),
('Dock widgets', 'dockarea.py'),
('Console', 'ConsoleWidget.py'),
('Histograms', 'histogram.py'),
('Beeswarm plot', 'beeswarm.py'),
('Symbols', 'Symbols.py'),
('Auto-range', 'PlotAutoRange.py'),
('Remote Plotting', 'RemoteSpeedTest.py'),
('Scrolling plots', 'scrollingPlots.py'),
('HDF5 big data', 'hdf5.py'),
('Demos', OrderedDict([
('Optics', 'optics_demos.py'),
('Special relativity', 'relativity_demo.py'),
('Verlet chain', 'verlet_chain_demo.py'),
])),
('GraphicsItems', OrderedDict([
('Scatter Plot', 'ScatterPlot.py'),
#('PlotItem', 'PlotItem.py'),
('IsocurveItem', 'isocurve.py'),
('GraphItem', 'GraphItem.py'),
('ErrorBarItem', 'ErrorBarItem.py'),
('FillBetweenItem', 'FillBetweenItem.py'),
('ImageItem - video', 'ImageItem.py'),
('ImageItem - draw', 'Draw.py'),
('Region-of-Interest', 'ROIExamples.py'),
('Bar Graph', 'BarGraphItem.py'),
('GraphicsLayout', 'GraphicsLayout.py'),
('LegendItem', 'Legend.py'),
('Text Item', 'text.py'),
('Linked Views', 'linkedViews.py'),
('Arrow', 'Arrow.py'),
('ViewBox', 'ViewBox.py'),
('Custom Graphics', 'customGraphicsItem.py'),
('Labeled Graph', 'CustomGraphItem.py'),
])),
('Benchmarks', OrderedDict([
('Video speed test', 'VideoSpeedTest.py'),
('Line Plot update', 'PlotSpeedTest.py'),
('Scatter Plot update', 'ScatterPlotSpeedTest.py'),
('Multiple plots', 'MultiPlotSpeedTest.py'),
])),
('3D Graphics', OrderedDict([
('Volumetric', 'GLVolumeItem.py'),
('Isosurface', 'GLIsosurface.py'),
('Surface Plot', 'GLSurfacePlot.py'),
('Scatter Plot', 'GLScatterPlotItem.py'),
('Shaders', 'GLshaders.py'),
('Line Plot', 'GLLinePlotItem.py'),
('Mesh', 'GLMeshItem.py'),
('Image', 'GLImageItem.py'),
])),
('Widgets', OrderedDict([
('PlotWidget', 'PlotWidget.py'),
('SpinBox', 'SpinBox.py'),
('ConsoleWidget', 'ConsoleWidget.py'),
('Histogram / lookup table', 'HistogramLUT.py'),
('TreeWidget', 'TreeWidget.py'),
('ScatterPlotWidget', 'ScatterPlotWidget.py'),
('DataTreeWidget', 'DataTreeWidget.py'),
('GradientWidget', 'GradientWidget.py'),
('TableWidget', 'TableWidget.py'),
('ColorButton', 'ColorButton.py'),
#('CheckTable', '../widgets/CheckTable.py'),
#('VerticalLabel', '../widgets/VerticalLabel.py'),
('JoystickButton', 'JoystickButton.py'),
])),
('Flowcharts', 'Flowchart.py'),
('Custom Flowchart Nodes', 'FlowchartCustomNode.py'),
])
def buildFileList(examples, files=None):
if files == None:
files = []
for key, val in examples.items():
#item = QtGui.QTreeWidgetItem([key])
if isinstance(val, basestring):
#item.file = val
files.append((key,val))
else:
buildFileList(val, files)
return files
def testFile(name, f, exe, lib, graphicsSystem=None):
global path
fn = os.path.join(path,f)
#print "starting process: ", fn
os.chdir(path)
sys.stdout.write(name)
sys.stdout.flush()
import1 = "import %s" % lib if lib != '' else ''
import2 = os.path.splitext(os.path.split(fn)[1])[0]
graphicsSystem = '' if graphicsSystem is None else "pg.QtGui.QApplication.setGraphicsSystem('%s')" % graphicsSystem
code = """
try:
%s
import initExample
import pyqtgraph as pg
%s
import %s
import sys
print("test complete")
sys.stdout.flush()
import time
while True: ## run a little event loop
pg.QtGui.QApplication.processEvents()
time.sleep(0.01)
except:
print("test failed")
raise
""" % (import1, graphicsSystem, import2)
if sys.platform.startswith('win'):
process = subprocess.Popen([exe], stdin=subprocess.PIPE, stderr=subprocess.PIPE, stdout=subprocess.PIPE)
process.stdin.write(code.encode('UTF-8'))
process.stdin.close()
else:
process = subprocess.Popen(['exec %s -i' % (exe)], shell=True, stdin=subprocess.PIPE, stderr=subprocess.PIPE, stdout=subprocess.PIPE)
process.stdin.write(code.encode('UTF-8'))
process.stdin.close() ##?
output = ''
fail = False
while True:
c = process.stdout.read(1).decode()
output += c
#sys.stdout.write(c)
#sys.stdout.flush()
if output.endswith('test complete'):
break
if output.endswith('test failed'):
fail = True
break
time.sleep(1)
process.kill()
#res = process.communicate()
res = (process.stdout.read(), process.stderr.read())
if fail or 'exception' in res[1].decode().lower() or 'error' in res[1].decode().lower():
print('.' * (50-len(name)) + 'FAILED')
print(res[0].decode())
print(res[1].decode())
else:
print('.' * (50-len(name)) + 'passed')

15
pyqtgraph/GraphicsScene/GraphicsScene.py
View File

@ -1,12 +1,13 @@
from ..Qt import QtCore, QtGui
from ..python2_3 import sortList
import weakref
from ..Qt import QtCore, QtGui
from ..python2_3 import sortList, cmp
from ..Point import Point
from .. import functions as fn
from .. import ptime as ptime
from .mouseEvents import *
from .. import debug as debug
if hasattr(QtCore, 'PYQT_VERSION'):
try:
import sip
@ -97,6 +98,7 @@ class GraphicsScene(QtGui.QGraphicsScene):
self.lastDrag = None
self.hoverItems = weakref.WeakKeyDictionary()
self.lastHoverEvent = None
self.minDragTime = 0.5 # drags shorter than 0.5 sec are interpreted as clicks
self.contextMenu = [QtGui.QAction("Export...", self)]
self.contextMenu[0].triggered.connect(self.showExportDialog)
@ -133,7 +135,6 @@ class GraphicsScene(QtGui.QGraphicsScene):
self._moveDistance = d
def mousePressEvent(self, ev):
#print 'scenePress'
QtGui.QGraphicsScene.mousePressEvent(self, ev)
if self.mouseGrabberItem() is None: ## nobody claimed press; we are free to generate drag/click events
if self.lastHoverEvent is not None:
@ -171,8 +172,8 @@ class GraphicsScene(QtGui.QGraphicsScene):
continue
if int(btn) not in self.dragButtons: ## see if we've dragged far enough yet
cev = [e for e in self.clickEvents if int(e.button()) == int(btn)][0]
dist = Point(ev.screenPos() - cev.screenPos())
if dist.length() < self._moveDistance and now - cev.time() < 0.5:
dist = Point(ev.scenePos() - cev.scenePos()).length()
if dist == 0 or (dist < self._moveDistance and now - cev.time() < self.minDragTime):
continue
init = init or (len(self.dragButtons) == 0) ## If this is the first button to be dragged, then init=True
self.dragButtons.append(int(btn))
@ -186,9 +187,7 @@ class GraphicsScene(QtGui.QGraphicsScene):
if len(self.dragButtons) == 0:
self.sendHoverEvents(ev, exitOnly=True)
def mouseReleaseEvent(self, ev):
#print 'sceneRelease'
if self.mouseGrabberItem() is None:
if ev.button() in self.dragButtons:
if self.sendDragEvent(ev, final=True):
@ -231,8 +230,6 @@ class GraphicsScene(QtGui.QGraphicsScene):
prevItems = list(self.hoverItems.keys())
#print "hover prev items:", prevItems
#print "hover test items:", items
for item in items:
if hasattr(item, 'hoverEvent'):
event.currentItem = item

9
pyqtgraph/GraphicsScene/exportDialog.py
View File

@ -1,4 +1,4 @@
from ..Qt import QtCore, QtGui, USE_PYSIDE
from ..Qt import QtCore, QtGui, USE_PYSIDE, USE_PYQT5
from .. import exporters as exporters
from .. import functions as fn
from ..graphicsItems.ViewBox import ViewBox
@ -6,6 +6,8 @@ from ..graphicsItems.PlotItem import PlotItem
if USE_PYSIDE:
from . import exportDialogTemplate_pyside as exportDialogTemplate
elif USE_PYQT5:
from . import exportDialogTemplate_pyqt5 as exportDialogTemplate
else:
from . import exportDialogTemplate_pyqt as exportDialogTemplate
@ -137,5 +139,6 @@ class ExportDialog(QtGui.QWidget):
self.selectBox.setVisible(False)
self.setVisible(False)
def closeEvent(self, event):
self.close()
QtGui.QWidget.closeEvent(self, event)

64
pyqtgraph/GraphicsScene/exportDialogTemplate_pyqt5.py Normal file
View File

@ -0,0 +1,64 @@
# -*- coding: utf-8 -*-
# Form implementation generated from reading ui file './pyqtgraph/GraphicsScene/exportDialogTemplate.ui'
#
# Created: Wed Mar 26 15:09:29 2014
# by: PyQt5 UI code generator 5.0.1
#
# WARNING! All changes made in this file will be lost!
from PyQt5 import QtCore, QtGui, QtWidgets
class Ui_Form(object):
def setupUi(self, Form):
Form.setObjectName("Form")
Form.resize(241, 367)
self.gridLayout = QtWidgets.QGridLayout(Form)
self.gridLayout.setSpacing(0)
self.gridLayout.setObjectName("gridLayout")
self.label = QtWidgets.QLabel(Form)
self.label.setObjectName("label")
self.gridLayout.addWidget(self.label, 0, 0, 1, 3)
self.itemTree = QtWidgets.QTreeWidget(Form)
self.itemTree.setObjectName("itemTree")
self.itemTree.headerItem().setText(0, "1")
self.itemTree.header().setVisible(False)
self.gridLayout.addWidget(self.itemTree, 1, 0, 1, 3)
self.label_2 = QtWidgets.QLabel(Form)
self.label_2.setObjectName("label_2")
self.gridLayout.addWidget(self.label_2, 2, 0, 1, 3)
self.formatList = QtWidgets.QListWidget(Form)
self.formatList.setObjectName("formatList")
self.gridLayout.addWidget(self.formatList, 3, 0, 1, 3)
self.exportBtn = QtWidgets.QPushButton(Form)
self.exportBtn.setObjectName("exportBtn")
self.gridLayout.addWidget(self.exportBtn, 6, 1, 1, 1)
self.closeBtn = QtWidgets.QPushButton(Form)
self.closeBtn.setObjectName("closeBtn")
self.gridLayout.addWidget(self.closeBtn, 6, 2, 1, 1)
self.paramTree = ParameterTree(Form)
self.paramTree.setObjectName("paramTree")
self.paramTree.headerItem().setText(0, "1")
self.paramTree.header().setVisible(False)
self.gridLayout.addWidget(self.paramTree, 5, 0, 1, 3)
self.label_3 = QtWidgets.QLabel(Form)
self.label_3.setObjectName("label_3")
self.gridLayout.addWidget(self.label_3, 4, 0, 1, 3)
self.copyBtn = QtWidgets.QPushButton(Form)
self.copyBtn.setObjectName("copyBtn")
self.gridLayout.addWidget(self.copyBtn, 6, 0, 1, 1)
self.retranslateUi(Form)
QtCore.QMetaObject.connectSlotsByName(Form)
def retranslateUi(self, Form):
_translate = QtCore.QCoreApplication.translate
Form.setWindowTitle(_translate("Form", "Export"))
self.label.setText(_translate("Form", "Item to export:"))
self.label_2.setText(_translate("Form", "Export format"))
self.exportBtn.setText(_translate("Form", "Export"))
self.closeBtn.setText(_translate("Form", "Close"))
self.label_3.setText(_translate("Form", "Export options"))
self.copyBtn.setText(_translate("Form", "Copy"))
from ..parametertree import ParameterTree

2
pyqtgraph/GraphicsScene/mouseEvents.py
View File

@ -277,8 +277,6 @@ class HoverEvent(object):
else:
self.exit = True
def isEnter(self):
"""Returns True if the mouse has just entered the item's shape"""
return self.enter

150
pyqtgraph/Qt.py
View File

@ -9,32 +9,53 @@ This module exists to smooth out some of the differences between PySide and PyQt
"""
import sys, re
import os, sys, re, time
from .python2_3 import asUnicode
## Automatically determine whether to use PyQt or PySide.
PYSIDE = 'PySide'
PYQT4 = 'PyQt4'
PYQT5 = 'PyQt5'
QT_LIB = os.getenv('PYQTGRAPH_QT_LIB')
## Automatically determine whether to use PyQt or PySide (unless specified by
## environment variable).
## This is done by first checking to see whether one of the libraries
## is already imported. If not, then attempt to import PyQt4, then PySide.
if 'PyQt4' in sys.modules:
USE_PYSIDE = False
elif 'PySide' in sys.modules:
USE_PYSIDE = True
else:
try:
import PyQt4
USE_PYSIDE = False
except ImportError:
try:
import PySide
USE_PYSIDE = True
except ImportError:
raise Exception("PyQtGraph requires either PyQt4 or PySide; neither package could be imported.")
if QT_LIB is None:
libOrder = [PYQT4, PYSIDE, PYQT5]
if USE_PYSIDE:
for lib in libOrder:
if lib in sys.modules:
QT_LIB = lib
break
if QT_LIB is None:
for lib in libOrder:
try:
__import__(lib)
QT_LIB = lib
break
except ImportError:
pass
if QT_LIB is None:
raise Exception("PyQtGraph requires one of PyQt4, PyQt5 or PySide; none of these packages could be imported.")
if QT_LIB == PYSIDE:
from PySide import QtGui, QtCore, QtOpenGL, QtSvg
try:
from PySide import QtTest
if not hasattr(QtTest.QTest, 'qWait'):
@staticmethod
def qWait(msec):
start = time.time()
QtGui.QApplication.processEvents()
while time.time() < start + msec * 0.001:
QtGui.QApplication.processEvents()
QtTest.QTest.qWait = qWait
except ImportError:
pass
import PySide
@ -75,7 +96,15 @@ if USE_PYSIDE:
def loadUiType(uiFile):
"""
Pyside "loadUiType" command like PyQt4 has one, so we have to convert the ui file to py code in-memory first and then execute it in a special frame to retrieve the form_class.
Pyside "loadUiType" command like PyQt4 has one, so we have to convert
the ui file to py code in-memory first and then execute it in a
special frame to retrieve the form_class.
from stackoverflow: http://stackoverflow.com/a/14195313/3781327
seems like this might also be a legitimate solution, but I'm not sure
how to make PyQt4 and pyside look the same...
http://stackoverflow.com/a/8717832
"""
import pysideuic
import xml.etree.ElementTree as xml
@ -99,8 +128,8 @@ if USE_PYSIDE:
return form_class, base_class
elif QT_LIB == PYQT4:
else:
from PyQt4 import QtGui, QtCore, uic
try:
from PyQt4 import QtSvg
@ -115,21 +144,98 @@ else:
except ImportError:
pass
VERSION_INFO = 'PyQt4 ' + QtCore.PYQT_VERSION_STR + ' Qt ' + QtCore.QT_VERSION_STR
elif QT_LIB == PYQT5:
# We're using PyQt5 which has a different structure so we're going to use a shim to
# recreate the Qt4 structure for Qt5
from PyQt5 import QtGui, QtCore, QtWidgets, uic
try:
from PyQt5 import QtSvg
except ImportError:
pass
try:
from PyQt5 import QtOpenGL
except ImportError:
pass
try:
from PyQt5 import QtTest
QtTest.QTest.qWaitForWindowShown = QtTest.QTest.qWaitForWindowExposed
except ImportError:
pass
# Re-implement deprecated APIs
__QGraphicsItem_scale = QtWidgets.QGraphicsItem.scale
def scale(self, *args):
if args:
sx, sy = args
tr = self.transform()
tr.scale(sx, sy)
self.setTransform(tr)
else:
return __QGraphicsItem_scale(self)
QtWidgets.QGraphicsItem.scale = scale
def rotate(self, angle):
tr = self.transform()
tr.rotate(angle)
self.setTransform(tr)
QtWidgets.QGraphicsItem.rotate = rotate
def translate(self, dx, dy):
tr = self.transform()
tr.translate(dx, dy)
self.setTransform(tr)
QtWidgets.QGraphicsItem.translate = translate
def setMargin(self, i):
self.setContentsMargins(i, i, i, i)
QtWidgets.QGridLayout.setMargin = setMargin
def setResizeMode(self, *args):
self.setSectionResizeMode(*args)
QtWidgets.QHeaderView.setResizeMode = setResizeMode
QtGui.QApplication = QtWidgets.QApplication
QtGui.QGraphicsScene = QtWidgets.QGraphicsScene
QtGui.QGraphicsObject = QtWidgets.QGraphicsObject
QtGui.QGraphicsWidget = QtWidgets.QGraphicsWidget
QtGui.QApplication.setGraphicsSystem = None
# Import all QtWidgets objects into QtGui
for o in dir(QtWidgets):
if o.startswith('Q'):
setattr(QtGui, o, getattr(QtWidgets,o) )
VERSION_INFO = 'PyQt5 ' + QtCore.PYQT_VERSION_STR + ' Qt ' + QtCore.QT_VERSION_STR
else:
raise ValueError("Invalid Qt lib '%s'" % QT_LIB)
# Common to PyQt4 and 5
if QT_LIB.startswith('PyQt'):
import sip
def isQObjectAlive(obj):
return not sip.isdeleted(obj)
loadUiType = uic.loadUiType
QtCore.Signal = QtCore.pyqtSignal
VERSION_INFO = 'PyQt4 ' + QtCore.PYQT_VERSION_STR + ' Qt ' + QtCore.QT_VERSION_STR
## Make sure we have Qt >= 4.7
versionReq = [4, 7]
QtVersion = PySide.QtCore.__version__ if USE_PYSIDE else QtCore.QT_VERSION_STR
USE_PYSIDE = QT_LIB == PYSIDE
USE_PYQT4 = QT_LIB == PYQT4
USE_PYQT5 = QT_LIB == PYQT5
QtVersion = PySide.QtCore.__version__ if QT_LIB == PYSIDE else QtCore.QT_VERSION_STR
m = re.match(r'(\d+)\.(\d+).*', QtVersion)
if m is not None and list(map(int, m.groups())) < versionReq:
print(list(map(int, m.groups())))
raise Exception('pyqtgraph requires Qt version >= %d.%d (your version is %s)' % (versionReq[0], versionReq[1], QtVersion))

2
pyqtgraph/SRTTransform.py
View File

@ -3,6 +3,7 @@ from .Qt import QtCore, QtGui
from .Point import Point
import numpy as np
class SRTTransform(QtGui.QTransform):
"""Transform that can always be represented as a combination of 3 matrices: scale * rotate * translate
This transform has no shear; angles are always preserved.
@ -166,6 +167,7 @@ class SRTTransform(QtGui.QTransform):
def matrix(self):
return np.array([[self.m11(), self.m12(), self.m13()],[self.m21(), self.m22(), self.m23()],[self.m31(), self.m32(), self.m33()]])
if __name__ == '__main__':
from . import widgets
import GraphicsView

32
pyqtgraph/WidgetGroup.py
View File

@ -8,7 +8,7 @@ This class addresses the problem of having to save and restore the state
of a large group of widgets.
"""
from .Qt import QtCore, QtGui
from .Qt import QtCore, QtGui, USE_PYQT5
import weakref, inspect
from .python2_3 import asUnicode
@ -60,9 +60,13 @@ def setComboState(w, v):
class WidgetGroup(QtCore.QObject):
"""This class takes a list of widgets and keeps an internal record of their state which is always up to date. Allows reading and writing from groups of widgets simultaneously."""
"""This class takes a list of widgets and keeps an internal record of their
state that is always up to date.
## List of widget types which can be handled by WidgetGroup.
Allows reading and writing from groups of widgets simultaneously.
"""
## List of widget types that can be handled by WidgetGroup.
## The value for each type is a tuple (change signal function, get function, set function, [auto-add children])
## The change signal function that takes an object and returns a signal that is emitted any time the state of the widget changes, not just
## when it is changed by user interaction. (for example, 'clicked' is not a valid signal here)
@ -200,51 +204,35 @@ class WidgetGroup(QtCore.QObject):
if hasattr(obj, 'widgetGroupInterface'):
return True
return False
#return (type(obj) in WidgetGroup.classes)
def setScale(self, widget, scale):
val = self.readWidget(widget)
self.scales[widget] = scale
self.setWidget(widget, val)
#print "scaling %f to %f" % (val, self.readWidget(widget))
def mkChangeCallback(self, w):
return lambda *args: self.widgetChanged(w, *args)
def widgetChanged(self, w, *args):
#print "widget changed"
n = self.widgetList[w]
v1 = self.cache[n]
v2 = self.readWidget(w)
if v1 != v2:
#print "widget", n, " = ", v2
self.emit(QtCore.SIGNAL('changed'), self.widgetList[w], v2)
if not USE_PYQT5:
# Old signal kept for backward compatibility.
self.emit(QtCore.SIGNAL('changed'), self.widgetList[w], v2)
self.sigChanged.emit(self.widgetList[w], v2)
def state(self):
for w in self.uncachedWidgets:
self.readWidget(w)
#cc = self.cache.copy()
#if 'averageGroup' in cc:
#val = cc['averageGroup']
#w = self.findWidget('averageGroup')
#self.readWidget(w)
#if val != self.cache['averageGroup']:
#print " AverageGroup did not match cached value!"
#else:
#print " AverageGroup OK"
return self.cache.copy()
def setState(self, s):
#print "SET STATE", self, s
for w in self.widgetList:
n = self.widgetList[w]
#print " restore %s?" % n
if n not in s:
continue
#print " restore state", w, n, s[n]
self.setWidget(w, s[n])
def readWidget(self, w):

26
pyqtgraph/__init__.py
View File

@ -4,7 +4,7 @@ PyQtGraph - Scientific Graphics and GUI Library for Python
www.pyqtgraph.org
"""
__version__ = '0.9.10'
__version__ = '0.10.0'
### import all the goodies and add some helper functions for easy CLI use
@ -41,13 +41,15 @@ elif 'darwin' in sys.platform: ## openGL can have a major impact on mac, but als
useOpenGL = False
if QtGui.QApplication.instance() is not None:
print('Warning: QApplication was created before pyqtgraph was imported; there may be problems (to avoid bugs, call QApplication.setGraphicsSystem("raster") before the QApplication is created).')
QtGui.QApplication.setGraphicsSystem('raster') ## work around a variety of bugs in the native graphics system
if QtGui.QApplication.setGraphicsSystem:
QtGui.QApplication.setGraphicsSystem('raster') ## work around a variety of bugs in the native graphics system
else:
useOpenGL = False ## on windows there's a more even performance / bugginess tradeoff.
CONFIG_OPTIONS = {
'useOpenGL': useOpenGL, ## by default, this is platform-dependent (see widgets/GraphicsView). Set to True or False to explicitly enable/disable opengl.
'leftButtonPan': True, ## if false, left button drags a rubber band for zooming in viewbox
# foreground/background take any arguments to the 'mkColor' in /pyqtgraph/functions.py
'foreground': 'd', ## default foreground color for axes, labels, etc.
'background': 'k', ## default background for GraphicsWidget
'antialias': False,
@ -57,16 +59,32 @@ CONFIG_OPTIONS = {
'exitCleanup': True, ## Attempt to work around some exit crash bugs in PyQt and PySide
'enableExperimental': False, ## Enable experimental features (the curious can search for this key in the code)
'crashWarning': False, # If True, print warnings about situations that may result in a crash
'imageAxisOrder': 'col-major', # For 'row-major', image data is expected in the standard (row, col) order.
# For 'col-major', image data is expected in reversed (col, row) order.
# The default is 'col-major' for backward compatibility, but this may
# change in the future.
}
def setConfigOption(opt, value):
global CONFIG_OPTIONS
if opt not in CONFIG_OPTIONS:
raise KeyError('Unknown configuration option "%s"' % opt)
if opt == 'imageAxisOrder' and value not in ('row-major', 'col-major'):
raise ValueError('imageAxisOrder must be either "row-major" or "col-major"')
CONFIG_OPTIONS[opt] = value
def setConfigOptions(**opts):
CONFIG_OPTIONS.update(opts)
"""Set global configuration options.
Each keyword argument sets one global option.
"""
for k,v in opts.items():
setConfigOption(k, v)
def getConfigOption(opt):
"""Return the value of a single global configuration option.
"""
return CONFIG_OPTIONS[opt]
@ -345,7 +363,7 @@ def exit():
## close file handles
if sys.platform == 'darwin':
for fd in xrange(3, 4096):
for fd in range(3, 4096):
if fd not in [7]: # trying to close 7 produces an illegal instruction on the Mac.
os.close(fd)
else:

96
pyqtgraph/canvas/CanvasTemplate_pyqt5.py Normal file
View File

@ -0,0 +1,96 @@
# -*- coding: utf-8 -*-
# Form implementation generated from reading ui file './pyqtgraph/canvas/CanvasTemplate.ui'
#
# Created: Wed Mar 26 15:09:28 2014
# by: PyQt5 UI code generator 5.0.1
#
# WARNING! All changes made in this file will be lost!
from PyQt5 import QtCore, QtGui, QtWidgets
class Ui_Form(object):
def setupUi(self, Form):
Form.setObjectName("Form")
Form.resize(490, 414)
self.gridLayout = QtWidgets.QGridLayout(Form)
self.gridLayout.setContentsMargins(0, 0, 0, 0)
self.gridLayout.setSpacing(0)
self.gridLayout.setObjectName("gridLayout")
self.splitter = QtWidgets.QSplitter(Form)
self.splitter.setOrientation(QtCore.Qt.Horizontal)
self.splitter.setObjectName("splitter")
self.view = GraphicsView(self.splitter)
self.view.setObjectName("view")
self.layoutWidget = QtWidgets.QWidget(self.splitter)
self.layoutWidget.setObjectName("layoutWidget")
self.gridLayout_2 = QtWidgets.QGridLayout(self.layoutWidget)
self.gridLayout_2.setContentsMargins(0, 0, 0, 0)
self.gridLayout_2.setObjectName("gridLayout_2")
self.storeSvgBtn = QtWidgets.QPushButton(self.layoutWidget)
self.storeSvgBtn.setObjectName("storeSvgBtn")
self.gridLayout_2.addWidget(self.storeSvgBtn, 1, 0, 1, 1)
self.storePngBtn = QtWidgets.QPushButton(self.layoutWidget)
self.storePngBtn.setObjectName("storePngBtn")
self.gridLayout_2.addWidget(self.storePngBtn, 1, 1, 1, 1)
self.autoRangeBtn = QtWidgets.QPushButton(self.layoutWidget)
sizePolicy = QtWidgets.QSizePolicy(QtWidgets.QSizePolicy.Minimum, QtWidgets.QSizePolicy.Fixed)
sizePolicy.setHorizontalStretch(0)
sizePolicy.setVerticalStretch(1)
sizePolicy.setHeightForWidth(self.autoRangeBtn.sizePolicy().hasHeightForWidth())
self.autoRangeBtn.setSizePolicy(sizePolicy)
self.autoRangeBtn.setObjectName("autoRangeBtn")
self.gridLayout_2.addWidget(self.autoRangeBtn, 3, 0, 1, 2)
self.horizontalLayout = QtWidgets.QHBoxLayout()
self.horizontalLayout.setSpacing(0)
self.horizontalLayout.setObjectName("horizontalLayout")
self.redirectCheck = QtWidgets.QCheckBox(self.layoutWidget)
self.redirectCheck.setObjectName("redirectCheck")
self.horizontalLayout.addWidget(self.redirectCheck)
self.redirectCombo = CanvasCombo(self.layoutWidget)
self.redirectCombo.setObjectName("redirectCombo")
self.horizontalLayout.addWidget(self.redirectCombo)
self.gridLayout_2.addLayout(self.horizontalLayout, 6, 0, 1, 2)
self.itemList = TreeWidget(self.layoutWidget)
sizePolicy = QtWidgets.QSizePolicy(QtWidgets.QSizePolicy.Expanding, QtWidgets.QSizePolicy.Expanding)
sizePolicy.setHorizontalStretch(0)
sizePolicy.setVerticalStretch(100)
sizePolicy.setHeightForWidth(self.itemList.sizePolicy().hasHeightForWidth())
self.itemList.setSizePolicy(sizePolicy)
self.itemList.setHeaderHidden(True)
self.itemList.setObjectName("itemList")
self.itemList.headerItem().setText(0, "1")
self.gridLayout_2.addWidget(self.itemList, 7, 0, 1, 2)
self.ctrlLayout = QtWidgets.QGridLayout()
self.ctrlLayout.setSpacing(0)
self.ctrlLayout.setObjectName("ctrlLayout")
self.gridLayout_2.addLayout(self.ctrlLayout, 11, 0, 1, 2)
self.resetTransformsBtn = QtWidgets.QPushButton(self.layoutWidget)
self.resetTransformsBtn.setObjectName("resetTransformsBtn")
self.gridLayout_2.addWidget(self.resetTransformsBtn, 8, 0, 1, 1)
self.mirrorSelectionBtn = QtWidgets.QPushButton(self.layoutWidget)
self.mirrorSelectionBtn.setObjectName("mirrorSelectionBtn")
self.gridLayout_2.addWidget(self.mirrorSelectionBtn, 4, 0, 1, 1)
self.reflectSelectionBtn = QtWidgets.QPushButton(self.layoutWidget)
self.reflectSelectionBtn.setObjectName("reflectSelectionBtn")
self.gridLayout_2.addWidget(self.reflectSelectionBtn, 4, 1, 1, 1)
self.gridLayout.addWidget(self.splitter, 0, 0, 1, 1)
self.retranslateUi(Form)
QtCore.QMetaObject.connectSlotsByName(Form)
def retranslateUi(self, Form):
_translate = QtCore.QCoreApplication.translate
Form.setWindowTitle(_translate("Form", "Form"))
self.storeSvgBtn.setText(_translate("Form", "Store SVG"))
self.storePngBtn.setText(_translate("Form", "Store PNG"))
self.autoRangeBtn.setText(_translate("Form", "Auto Range"))
self.redirectCheck.setToolTip(_translate("Form", "Check to display all local items in a remote canvas."))
self.redirectCheck.setText(_translate("Form", "Redirect"))
self.resetTransformsBtn.setText(_translate("Form", "Reset Transforms"))
self.mirrorSelectionBtn.setText(_translate("Form", "Mirror Selection"))
self.reflectSelectionBtn.setText(_translate("Form", "MirrorXY"))
from ..widgets.GraphicsView import GraphicsView
from ..widgets.TreeWidget import TreeWidget
from CanvasManager import CanvasCombo

56
pyqtgraph/canvas/TransformGuiTemplate_pyqt5.py Normal file
View File

@ -0,0 +1,56 @@
# -*- coding: utf-8 -*-
# Form implementation generated from reading ui file './pyqtgraph/canvas/TransformGuiTemplate.ui'
#
# Created: Wed Mar 26 15:09:28 2014
# by: PyQt5 UI code generator 5.0.1
#
# WARNING! All changes made in this file will be lost!
from PyQt5 import QtCore, QtGui, QtWidgets
class Ui_Form(object):
def setupUi(self, Form):
Form.setObjectName("Form")
Form.resize(224, 117)
sizePolicy = QtWidgets.QSizePolicy(QtWidgets.QSizePolicy.Preferred, QtWidgets.QSizePolicy.Preferred)
sizePolicy.setHorizontalStretch(0)
sizePolicy.setVerticalStretch(0)
sizePolicy.setHeightForWidth(Form.sizePolicy().hasHeightForWidth())
Form.setSizePolicy(sizePolicy)
self.verticalLayout = QtWidgets.QVBoxLayout(Form)
self.verticalLayout.setSpacing(1)
self.verticalLayout.setContentsMargins(0, 0, 0, 0)
self.verticalLayout.setObjectName("verticalLayout")
self.translateLabel = QtWidgets.QLabel(Form)
self.translateLabel.setObjectName("translateLabel")
self.verticalLayout.addWidget(self.translateLabel)
self.rotateLabel = QtWidgets.QLabel(Form)
self.rotateLabel.setObjectName("rotateLabel")
self.verticalLayout.addWidget(self.rotateLabel)
self.scaleLabel = QtWidgets.QLabel(Form)
self.scaleLabel.setObjectName("scaleLabel")
self.verticalLayout.addWidget(self.scaleLabel)
self.horizontalLayout = QtWidgets.QHBoxLayout()
self.horizontalLayout.setObjectName("horizontalLayout")
self.mirrorImageBtn = QtWidgets.QPushButton(Form)
self.mirrorImageBtn.setToolTip("")
self.mirrorImageBtn.setObjectName("mirrorImageBtn")
self.horizontalLayout.addWidget(self.mirrorImageBtn)
self.reflectImageBtn = QtWidgets.QPushButton(Form)
self.reflectImageBtn.setObjectName("reflectImageBtn")
self.horizontalLayout.addWidget(self.reflectImageBtn)
self.verticalLayout.addLayout(self.horizontalLayout)
self.retranslateUi(Form)
QtCore.QMetaObject.connectSlotsByName(Form)
def retranslateUi(self, Form):
_translate = QtCore.QCoreApplication.translate
Form.setWindowTitle(_translate("Form", "Form"))
self.translateLabel.setText(_translate("Form", "Translate:"))
self.rotateLabel.setText(_translate("Form", "Rotate:"))
self.scaleLabel.setText(_translate("Form", "Scale:"))
self.mirrorImageBtn.setText(_translate("Form", "Mirror"))
self.reflectImageBtn.setText(_translate("Form", "Reflect"))

6
pyqtgraph/colormap.py
View File

@ -1,5 +1,7 @@
import numpy as np
from .Qt import QtGui, QtCore
from .python2_3 import basestring
class ColorMap(object):
"""
@ -64,7 +66,9 @@ class ColorMap(object):
=============== ==============================================================
"""
self.pos = np.array(pos)
self.color = np.array(color)
order = np.argsort(self.pos)
self.pos = self.pos[order]
self.color = np.array(color)[order]
if mode is None:
mode = np.ones(len(pos))
self.mode = mode

7
pyqtgraph/configfile.py
View File

@ -10,14 +10,15 @@ as it can be converted to/from a string using repr and eval.
"""
import re, os, sys
import numpy
from .pgcollections import OrderedDict
GLOBAL_PATH = None # so not thread safe.
from . import units
from .python2_3 import asUnicode
from .python2_3 import asUnicode, basestring
from .Qt import QtCore
from .Point import Point
from .colormap import ColorMap
import numpy
GLOBAL_PATH = None # so not thread safe.
class ParseError(Exception):
def __init__(self, message, lineNum, line, fileName=None):

13
pyqtgraph/console/Console.py
View File

@ -1,14 +1,17 @@
from ..Qt import QtCore, QtGui, USE_PYSIDE
import sys, re, os, time, traceback, subprocess
import pickle
from ..Qt import QtCore, QtGui, USE_PYSIDE, USE_PYQT5
from ..python2_3 import basestring
from .. import exceptionHandling as exceptionHandling
from .. import getConfigOption
if USE_PYSIDE:
from . import template_pyside as template
elif USE_PYQT5:
from . import template_pyqt5 as template
else:
from . import template_pyqt as template
from .. import exceptionHandling as exceptionHandling
import pickle
from .. import getConfigOption
class ConsoleWidget(QtGui.QWidget):
"""

107
pyqtgraph/console/template_pyqt5.py Normal file
View File

@ -0,0 +1,107 @@
# -*- coding: utf-8 -*-
# Form implementation generated from reading ui file './pyqtgraph/console/template.ui'
#
# Created: Wed Mar 26 15:09:29 2014
# by: PyQt5 UI code generator 5.0.1
#
# WARNING! All changes made in this file will be lost!
from PyQt5 import QtCore, QtGui, QtWidgets
class Ui_Form(object):
def setupUi(self, Form):
Form.setObjectName("Form")
Form.resize(710, 497)
self.gridLayout = QtWidgets.QGridLayout(Form)
self.gridLayout.setContentsMargins(0, 0, 0, 0)
self.gridLayout.setSpacing(0)
self.gridLayout.setObjectName("gridLayout")
self.splitter = QtWidgets.QSplitter(Form)
self.splitter.setOrientation(QtCore.Qt.Vertical)
self.splitter.setObjectName("splitter")
self.layoutWidget = QtWidgets.QWidget(self.splitter)
self.layoutWidget.setObjectName("layoutWidget")
self.verticalLayout = QtWidgets.QVBoxLayout(self.layoutWidget)
self.verticalLayout.setContentsMargins(0, 0, 0, 0)
self.verticalLayout.setObjectName("verticalLayout")
self.output = QtWidgets.QPlainTextEdit(self.layoutWidget)
font = QtGui.QFont()
font.setFamily("Monospace")
self.output.setFont(font)
self.output.setReadOnly(True)
self.output.setObjectName("output")
self.verticalLayout.addWidget(self.output)
self.horizontalLayout = QtWidgets.QHBoxLayout()
self.horizontalLayout.setObjectName("horizontalLayout")
self.input = CmdInput(self.layoutWidget)
self.input.setObjectName("input")
self.horizontalLayout.addWidget(self.input)
self.historyBtn = QtWidgets.QPushButton(self.layoutWidget)
self.historyBtn.setCheckable(True)
self.historyBtn.setObjectName("historyBtn")
self.horizontalLayout.addWidget(self.historyBtn)
self.exceptionBtn = QtWidgets.QPushButton(self.layoutWidget)
self.exceptionBtn.setCheckable(True)
self.exceptionBtn.setObjectName("exceptionBtn")
self.horizontalLayout.addWidget(self.exceptionBtn)
self.verticalLayout.addLayout(self.horizontalLayout)
self.historyList = QtWidgets.QListWidget(self.splitter)
font = QtGui.QFont()
font.setFamily("Monospace")
self.historyList.setFont(font)
self.historyList.setObjectName("historyList")
self.exceptionGroup = QtWidgets.QGroupBox(self.splitter)
self.exceptionGroup.setObjectName("exceptionGroup")
self.gridLayout_2 = QtWidgets.QGridLayout(self.exceptionGroup)
self.gridLayout_2.setSpacing(0)
self.gridLayout_2.setContentsMargins(-1, 0, -1, 0)
self.gridLayout_2.setObjectName("gridLayout_2")
self.catchAllExceptionsBtn = QtWidgets.QPushButton(self.exceptionGroup)
self.catchAllExceptionsBtn.setCheckable(True)
self.catchAllExceptionsBtn.setObjectName("catchAllExceptionsBtn")
self.gridLayout_2.addWidget(self.catchAllExceptionsBtn, 0, 1, 1, 1)
self.catchNextExceptionBtn = QtWidgets.QPushButton(self.exceptionGroup)
self.catchNextExceptionBtn.setCheckable(True)
self.catchNextExceptionBtn.setObjectName("catchNextExceptionBtn")
self.gridLayout_2.addWidget(self.catchNextExceptionBtn, 0, 0, 1, 1)
self.onlyUncaughtCheck = QtWidgets.QCheckBox(self.exceptionGroup)
self.onlyUncaughtCheck.setChecked(True)
self.onlyUncaughtCheck.setObjectName("onlyUncaughtCheck")
self.gridLayout_2.addWidget(self.onlyUncaughtCheck, 0, 2, 1, 1)
self.exceptionStackList = QtWidgets.QListWidget(self.exceptionGroup)
self.exceptionStackList.setAlternatingRowColors(True)
self.exceptionStackList.setObjectName("exceptionStackList")
self.gridLayout_2.addWidget(self.exceptionStackList, 2, 0, 1, 5)
self.runSelectedFrameCheck = QtWidgets.QCheckBox(self.exceptionGroup)
self.runSelectedFrameCheck.setChecked(True)
self.runSelectedFrameCheck.setObjectName("runSelectedFrameCheck")
self.gridLayout_2.addWidget(self.runSelectedFrameCheck, 3, 0, 1, 5)
self.exceptionInfoLabel = QtWidgets.QLabel(self.exceptionGroup)
self.exceptionInfoLabel.setObjectName("exceptionInfoLabel")
self.gridLayout_2.addWidget(self.exceptionInfoLabel, 1, 0, 1, 5)
self.clearExceptionBtn = QtWidgets.QPushButton(self.exceptionGroup)
self.clearExceptionBtn.setEnabled(False)
self.clearExceptionBtn.setObjectName("clearExceptionBtn")
self.gridLayout_2.addWidget(self.clearExceptionBtn, 0, 4, 1, 1)
spacerItem = QtWidgets.QSpacerItem(40, 20, QtWidgets.QSizePolicy.Expanding, QtWidgets.QSizePolicy.Minimum)
self.gridLayout_2.addItem(spacerItem, 0, 3, 1, 1)
self.gridLayout.addWidget(self.splitter, 0, 0, 1, 1)
self.retranslateUi(Form)
QtCore.QMetaObject.connectSlotsByName(Form)
def retranslateUi(self, Form):
_translate = QtCore.QCoreApplication.translate
Form.setWindowTitle(_translate("Form", "Console"))
self.historyBtn.setText(_translate("Form", "History.."))
self.exceptionBtn.setText(_translate("Form", "Exceptions.."))
self.exceptionGroup.setTitle(_translate("Form", "Exception Handling"))
self.catchAllExceptionsBtn.setText(_translate("Form", "Show All Exceptions"))
self.catchNextExceptionBtn.setText(_translate("Form", "Show Next Exception"))
self.onlyUncaughtCheck.setText(_translate("Form", "Only Uncaught Exceptions"))
self.runSelectedFrameCheck.setText(_translate("Form", "Run commands in selected stack frame"))
self.exceptionInfoLabel.setText(_translate("Form", "Exception Info"))
self.clearExceptionBtn.setText(_translate("Form", "Clear Exception"))
from .CmdInput import CmdInput

97
pyqtgraph/debug.py
View File

@ -83,8 +83,9 @@ class Tracer(object):
funcname = cls.__name__ + "." + funcname
return "%s: %s %s: %s" % (callline, filename, lineno, funcname)
def warnOnException(func):
"""Decorator which catches/ignores exceptions and prints a stack trace."""
"""Decorator that catches/ignores exceptions and prints a stack trace."""
def w(*args, **kwds):
try:
func(*args, **kwds)
@ -92,11 +93,9 @@ def warnOnException(func):
printExc('Ignored exception:')
return w
def getExc(indent=4, prefix='| ', skip=1):
lines = (traceback.format_stack()[:-skip]
+ [" ---- exception caught ---->\n"]
+ traceback.format_tb(sys.exc_info()[2])
+ traceback.format_exception_only(*sys.exc_info()[:2]))
lines = formatException(*sys.exc_info(), skip=skip)
lines2 = []
for l in lines:
lines2.extend(l.strip('\n').split('\n'))
@ -113,6 +112,7 @@ def printExc(msg='', indent=4, prefix='|'):
print(exc)
print(" "*indent + prefix + '='*30 + '<<')
def printTrace(msg='', indent=4, prefix='|'):
"""Print an error message followed by an indented stack trace"""
trace = backtrace(1)
@ -128,6 +128,29 @@ def backtrace(skip=0):
return ''.join(traceback.format_stack()[:-(skip+1)])
def formatException(exctype, value, tb, skip=0):
"""Return a list of formatted exception strings.
Similar to traceback.format_exception, but displays the entire stack trace
rather than just the portion downstream of the point where the exception is
caught. In particular, unhandled exceptions that occur during Qt signal
handling do not usually show the portion of the stack that emitted the
signal.
"""
lines = traceback.format_exception(exctype, value, tb)
lines = [lines[0]] + traceback.format_stack()[:-(skip+1)] + [' --- exception caught here ---\n'] + lines[1:]
return lines
def printException(exctype, value, traceback):
"""Print an exception with its full traceback.
Set `sys.excepthook = printException` to ensure that exceptions caught
inside Qt signal handlers are printed with their full stack trace.
"""
print(''.join(formatException(exctype, value, traceback, skip=1)))
def listObjs(regex='Q', typ=None):
"""List all objects managed by python gc with class name matching regex.
Finds 'Q...' classes by default."""
@ -723,7 +746,6 @@ class ObjTracker(object):
for k in self.startCount:
c1[k] = c1.get(k, 0) - self.startCount[k]
typs = list(c1.keys())
#typs.sort(lambda a,b: cmp(c1[a], c1[b]))
typs.sort(key=lambda a: c1[a])
for t in typs:
if c1[t] == 0:
@ -824,7 +846,6 @@ class ObjTracker(object):
c = count.get(typ, [0,0])
count[typ] = [c[0]+1, c[1]+objectSize(obj)]
typs = list(count.keys())
#typs.sort(lambda a,b: cmp(count[a][1], count[b][1]))
typs.sort(key=lambda a: count[a][1])
for t in typs:
@ -1097,46 +1118,44 @@ def pretty(data, indent=''):
return ret
class PeriodicTrace(object):
class ThreadTrace(object):
"""
Used to debug freezing by starting a new thread that reports on the
location of the main thread periodically.
location of other threads periodically.
"""
class ReportThread(QtCore.QThread):
def __init__(self):
self.frame = None
self.ind = 0
self.lastInd = None
self.lock = Mutex()
QtCore.QThread.__init__(self)
def __init__(self, interval=10.0):
self.interval = interval
self.lock = Mutex()
self._stop = False
self.start()
def notify(self, frame):
with self.lock:
self.frame = frame
self.ind += 1
def stop(self):
with self.lock:
self._stop = True
def run(self):
while True:
time.sleep(1)
with self.lock:
if self.lastInd != self.ind:
print("== Trace %d: ==" % self.ind)
traceback.print_stack(self.frame)
self.lastInd = self.ind
def __init__(self):
self.mainThread = threading.current_thread()
self.thread = PeriodicTrace.ReportThread()
def start(self, interval=None):
if interval is not None:
self.interval = interval
self._stop = False
self.thread = threading.Thread(target=self.run)
self.thread.daemon = True
self.thread.start()
sys.settrace(self.trace)
def trace(self, frame, event, arg):
if threading.current_thread() is self.mainThread: # and 'threading' not in frame.f_code.co_filename:
self.thread.notify(frame)
# print("== Trace ==", event, arg)
# traceback.print_stack(frame)
return self.trace
def run(self):
while True:
with self.lock:
if self._stop is True:
return
print("\n============= THREAD FRAMES: ================")
for id, frame in sys._current_frames().items():
if id == threading.current_thread().ident:
continue
print("<< thread %d >>" % id)
traceback.print_stack(frame)
print("===============================================\n")
time.sleep(self.interval)
class ThreadColor(object):

18
pyqtgraph/dockarea/Dock.py
View File

@ -7,10 +7,13 @@ from ..python2_3 import asUnicode
class Dock(QtGui.QWidget, DockDrop):
sigStretchChanged = QtCore.Signal()
sigClosed = QtCore.Signal(object)
def __init__(self, name, area=None, size=(10, 10), widget=None, hideTitle=False, autoOrientation=True, closable=False):
QtGui.QWidget.__init__(self)
DockDrop.__init__(self)
self._container = None
self._name = name
self.area = area
self.label = DockLabel(name, self, closable)
if closable:
@ -127,6 +130,18 @@ class Dock(QtGui.QWidget, DockDrop):
self.allowedAreas.add('center')
self.updateStyle()
def title(self):
"""
Gets the text displayed in the title bar for this dock.
"""
return asUnicode(self.label.text())
def setTitle(self, text):
"""
Sets the text displayed in title bar for this Dock.
"""
self.label.setText(text)
def setOrientation(self, o='auto', force=False):
"""
Sets the orientation of the title bar for this Dock.
@ -170,7 +185,7 @@ class Dock(QtGui.QWidget, DockDrop):
self.resizeOverlay(self.size())
def name(self):
return asUnicode(self.label.text())
return self._name
def container(self):
return self._container
@ -223,6 +238,7 @@ class Dock(QtGui.QWidget, DockDrop):
self.label.setParent(None)
self._container.apoptose()
self._container = None
self.sigClosed.emit(self)
def __repr__(self):
return "<Dock %s %s>" % (self.name(), self.stretch())

48
pyqtgraph/dockarea/DockArea.py
View File

@ -1,17 +1,11 @@
# -*- coding: utf-8 -*-
import weakref
from ..Qt import QtCore, QtGui
from .Container import *
from .DockDrop import *
from .Dock import Dock
from .. import debug as debug
import weakref
## TODO:
# - containers should be drop areas, not docks. (but every slot within a container must have its own drop areas?)
# - drop between tabs
# - nest splitters inside tab boxes, etc.
from ..python2_3 import basestring
class DockArea(Container, QtGui.QWidget, DockDrop):
@ -102,9 +96,12 @@ class DockArea(Container, QtGui.QWidget, DockDrop):
'below': 'after'
}[position]
#print "request insert", dock, insertPos, neighbor
old = dock.container()
container.insert(dock, insertPos, neighbor)
dock.area = self
self.docks[dock.name()] = dock
if old is not None:
old.apoptose()
return dock
@ -112,12 +109,10 @@ class DockArea(Container, QtGui.QWidget, DockDrop):
"""
Move an existing Dock to a new location.
"""
old = dock.container()
## Moving to the edge of a tabbed dock causes a drop outside the tab box
if position in ['left', 'right', 'top', 'bottom'] and neighbor is not None and neighbor.container() is not None and neighbor.container().type() == 'tab':
neighbor = neighbor.container()
self.addDock(dock, position, neighbor)
old.apoptose()
def getContainer(self, obj):
if obj is None:
@ -171,8 +166,7 @@ class DockArea(Container, QtGui.QWidget, DockDrop):
if self.home is None:
area = DockArea(temporary=True, home=self)
self.tempAreas.append(area)
win = QtGui.QMainWindow()
win.setCentralWidget(area)
win = TempAreaWindow(area)
area.win = win
win.show()
else:
@ -196,7 +190,13 @@ class DockArea(Container, QtGui.QWidget, DockDrop):
"""
Return a serialized (storable) representation of the state of
all Docks in this DockArea."""
state = {'main': self.childState(self.topContainer), 'float': []}
if self.topContainer is None:
main = None
else:
main = self.childState(self.topContainer)
state = {'main': main, 'float': []}
for a in self.tempAreas:
geo = a.win.geometry()
geo = (geo.x(), geo.y(), geo.width(), geo.height())
@ -228,7 +228,8 @@ class DockArea(Container, QtGui.QWidget, DockDrop):
#print "found docks:", docks
## 2) create container structure, move docks into new containers
self.buildFromState(state['main'], docks, self)
if state['main'] is not None:
self.buildFromState(state['main'], docks, self)
## 3) create floating areas, populate
for s in state['float']:
@ -296,10 +297,16 @@ class DockArea(Container, QtGui.QWidget, DockDrop):
def apoptose(self):
#print "apoptose area:", self.temporary, self.topContainer, self.topContainer.count()
if self.temporary and self.topContainer.count() == 0:
if self.topContainer.count() == 0:
self.topContainer = None
self.home.removeTempArea(self)
#self.close()
if self.temporary:
self.home.removeTempArea(self)
#self.close()
def clear(self):
docks = self.findAll()[1]
for dock in docks.values():
dock.close()
## PySide bug: We need to explicitly redefine these methods
## or else drag/drop events will not be delivered.
@ -316,4 +323,11 @@ class DockArea(Container, QtGui.QWidget, DockDrop):
DockDrop.dropEvent(self, *args)
class TempAreaWindow(QtGui.QMainWindow):
def __init__(self, area, **kwargs):
QtGui.QMainWindow.__init__(self, **kwargs)
self.setCentralWidget(area)
def closeEvent(self, *args, **kwargs):
self.centralWidget().clear()
QtGui.QMainWindow.closeEvent(self, *args, **kwargs)

2
pyqtgraph/exporters/Exporter.py
View File

@ -1,6 +1,6 @@
from ..widgets.FileDialog import FileDialog
from ..Qt import QtGui, QtCore, QtSvg
from ..python2_3 import asUnicode
from ..python2_3 import asUnicode, basestring
from ..GraphicsScene import GraphicsScene
import os, re
LastExportDirectory = None

35
pyqtgraph/exporters/SVGExporter.py
View File

@ -45,41 +45,6 @@ class SVGExporter(Exporter):
if toBytes is False and copy is False and fileName is None:
self.fileSaveDialog(filter="Scalable Vector Graphics (*.svg)")
return
#self.svg = QtSvg.QSvgGenerator()
#self.svg.setFileName(fileName)
#dpi = QtGui.QDesktopWidget().physicalDpiX()
### not really sure why this works, but it seems to be important:
#self.svg.setSize(QtCore.QSize(self.params['width']*dpi/90., self.params['height']*dpi/90.))
#self.svg.setResolution(dpi)
##self.svg.setViewBox()
#targetRect = QtCore.QRect(0, 0, self.params['width'], self.params['height'])
#sourceRect = self.getSourceRect()
#painter = QtGui.QPainter(self.svg)
#try:
#self.setExportMode(True)
#self.render(painter, QtCore.QRectF(targetRect), sourceRect)
#finally:
#self.setExportMode(False)
#painter.end()
## Workaround to set pen widths correctly
#data = open(fileName).readlines()
#for i in range(len(data)):
#line = data[i]
#m = re.match(r'(<g .*)stroke-width="1"(.*transform="matrix\(([^\)]+)\)".*)', line)
#if m is not None:
##print "Matched group:", line
#g = m.groups()
#matrix = list(map(float, g[2].split(',')))
##print "matrix:", matrix
#scale = max(abs(matrix[0]), abs(matrix[3]))
#if scale == 0 or scale == 1.0:
#continue
#data[i] = g[0] + ' stroke-width="%0.2g" ' % (1.0/scale) + g[1] + '\n'
##print "old line:", line
##print "new line:", data[i]
#open(fileName, 'w').write(''.join(data))
## Qt's SVG generator is not complete. (notably, it lacks clipping)
## Instead, we will use Qt to generate SVG for each item independently,

0
pyqtgraph/exporters/tests/__init__.py Normal file
View File

16
pyqtgraph/exporters/tests/test_csv.py
View File

@ -1,16 +1,23 @@
"""
SVG export test
"""
from __future__ import division, print_function, absolute_import
import pyqtgraph as pg
import pyqtgraph.exporters
import csv
import os
import tempfile
app = pg.mkQApp()
def approxeq(a, b):
return (a-b) <= ((a + b) * 1e-6)
def test_CSVExporter():
tempfilename = tempfile.NamedTemporaryFile(suffix='.csv').name
print("using %s as a temporary file" % tempfilename)
plt = pg.plot()
y1 = [1,3,2,3,1,6,9,8,4,2]
plt.plot(y=y1, name='myPlot')
@ -24,9 +31,9 @@ def test_CSVExporter():
plt.plot(x=x3, y=y3, stepMode=True)
ex = pg.exporters.CSVExporter(plt.plotItem)
ex.export(fileName='test.csv')
ex.export(fileName=tempfilename)
r = csv.reader(open('test.csv', 'r'))
r = csv.reader(open(tempfilename, 'r'))
lines = [line for line in r]
header = lines.pop(0)
assert header == ['myPlot_x', 'myPlot_y', 'x0001', 'y0001', 'x0002', 'y0002']
@ -44,6 +51,7 @@ def test_CSVExporter():
assert (i >= len(y3) and vals[5] == '') or approxeq(float(vals[5]), y3[i])
i += 1
os.unlink(tempfilename)
if __name__ == '__main__':
test_CSVExporter()

22
pyqtgraph/exporters/tests/test_svg.py
View File

@ -1,11 +1,18 @@
"""
SVG export test
"""
from __future__ import division, print_function, absolute_import
import pyqtgraph as pg
import pyqtgraph.exporters
import tempfile
import os
app = pg.mkQApp()
def test_plotscene():
tempfilename = tempfile.NamedTemporaryFile(suffix='.svg').name
print("using %s as a temporary file" % tempfilename)
pg.setConfigOption('foreground', (0,0,0))
w = pg.GraphicsWindow()
w.show()
@ -18,10 +25,13 @@ def test_plotscene():
app.processEvents()
ex = pg.exporters.SVGExporter(w.scene())
ex.export(fileName='test.svg')
ex.export(fileName=tempfilename)
# clean up after the test is done
os.unlink(tempfilename)
def test_simple():
tempfilename = tempfile.NamedTemporaryFile(suffix='.svg').name
print("using %s as a temporary file" % tempfilename)
scene = pg.QtGui.QGraphicsScene()
#rect = pg.QtGui.QGraphicsRectItem(0, 0, 100, 100)
#scene.addItem(rect)
@ -51,6 +61,7 @@ def test_simple():
#el = pg.QtGui.QGraphicsEllipseItem(0, 0, 100, 50)
#el.translate(10,-5)
#el.scale(0.5,2)
#el.setParentItem(rect2)
grp2 = pg.ItemGroup()
@ -62,6 +73,5 @@ def test_simple():
grp2.addItem(rect3)
ex = pg.exporters.SVGExporter(scene)
ex.export(fileName='test.svg')
ex.export(fileName=tempfilename)
os.unlink(tempfilename)

32
pyqtgraph/flowchart/Flowchart.py
View File

@ -1,5 +1,5 @@
# -*- coding: utf-8 -*-
from ..Qt import QtCore, QtGui, USE_PYSIDE
from ..Qt import QtCore, QtGui, USE_PYSIDE, USE_PYQT5
from .Node import *
from ..pgcollections import OrderedDict
from ..widgets.TreeWidget import *
@ -9,6 +9,9 @@ from .. import FileDialog, DataTreeWidget
if USE_PYSIDE:
from . import FlowchartTemplate_pyside as FlowchartTemplate
from . import FlowchartCtrlTemplate_pyside as FlowchartCtrlTemplate
elif USE_PYQT5:
from . import FlowchartTemplate_pyqt5 as FlowchartTemplate
from . import FlowchartCtrlTemplate_pyqt5 as FlowchartCtrlTemplate
else:
from . import FlowchartTemplate_pyqt as FlowchartTemplate
from . import FlowchartCtrlTemplate_pyqt as FlowchartCtrlTemplate
@ -349,7 +352,6 @@ class Flowchart(Node):
#tdeps[t] = lastNode
if lastInd is not None:
dels.append((lastInd+1, t))
#dels.sort(lambda a,b: cmp(b[0], a[0]))
dels.sort(key=lambda a: a[0], reverse=True)
for i, t in dels:
ops.insert(i, ('d', t))
@ -379,22 +381,22 @@ class Flowchart(Node):
terms = set(startNode.outputs().values())
#print "======= Updating", startNode
#print "Order:", order
# print("Order:", order)
for node in order[1:]:
#print "Processing node", node
# print("Processing node", node)
update = False
for term in list(node.inputs().values()):
#print " checking terminal", term
# print(" checking terminal", term)
deps = list(term.connections().keys())
update = False
for d in deps:
if d in terms:
#print " ..input", d, "changed"
update = True
# print(" ..input", d, "changed")
update |= True
term.inputChanged(d, process=False)
if update:
#print " processing.."
node.update()
terms |= set(node.outputs().values())
if update:
# print(" processing..")
node.update()
terms |= set(node.outputs().values())
finally:
self.processing = False
@ -464,7 +466,6 @@ class Flowchart(Node):
self.clear()
Node.restoreState(self, state)
nodes = state['nodes']
#nodes.sort(lambda a, b: cmp(a['pos'][0], b['pos'][0]))
nodes.sort(key=lambda a: a['pos'][0])
for n in nodes:
if n['name'] in self._nodes:
@ -619,7 +620,10 @@ class FlowchartCtrlWidget(QtGui.QWidget):
self.cwWin.resize(1000,800)
h = self.ui.ctrlList.header()
h.setResizeMode(0, h.Stretch)
if not USE_PYQT5:
h.setResizeMode(0, h.Stretch)
else:
h.setSectionResizeMode(0, h.Stretch)
self.ui.ctrlList.itemChanged.connect(self.itemChanged)
self.ui.loadBtn.clicked.connect(self.loadClicked)

67
pyqtgraph/flowchart/FlowchartCtrlTemplate_pyqt5.py Normal file
View File

@ -0,0 +1,67 @@
# -*- coding: utf-8 -*-
# Form implementation generated from reading ui file './pyqtgraph/flowchart/FlowchartCtrlTemplate.ui'
#
# Created: Wed Mar 26 15:09:28 2014
# by: PyQt5 UI code generator 5.0.1
#
# WARNING! All changes made in this file will be lost!
from PyQt5 import QtCore, QtGui, QtWidgets
class Ui_Form(object):
def setupUi(self, Form):
Form.setObjectName("Form")
Form.resize(217, 499)
self.gridLayout = QtWidgets.QGridLayout(Form)
self.gridLayout.setContentsMargins(0, 0, 0, 0)
self.gridLayout.setVerticalSpacing(0)
self.gridLayout.setObjectName("gridLayout")
self.loadBtn = QtWidgets.QPushButton(Form)
self.loadBtn.setObjectName("loadBtn")
self.gridLayout.addWidget(self.loadBtn, 1, 0, 1, 1)
self.saveBtn = FeedbackButton(Form)
self.saveBtn.setObjectName("saveBtn")
self.gridLayout.addWidget(self.saveBtn, 1, 1, 1, 2)
self.saveAsBtn = FeedbackButton(Form)
self.saveAsBtn.setObjectName("saveAsBtn")
self.gridLayout.addWidget(self.saveAsBtn, 1, 3, 1, 1)
self.reloadBtn = FeedbackButton(Form)
self.reloadBtn.setCheckable(False)
self.reloadBtn.setFlat(False)
self.reloadBtn.setObjectName("reloadBtn")
self.gridLayout.addWidget(self.reloadBtn, 4, 0, 1, 2)
self.showChartBtn = QtWidgets.QPushButton(Form)
self.showChartBtn.setCheckable(True)
self.showChartBtn.setObjectName("showChartBtn")
self.gridLayout.addWidget(self.showChartBtn, 4, 2, 1, 2)
self.ctrlList = TreeWidget(Form)
self.ctrlList.setObjectName("ctrlList")
self.ctrlList.headerItem().setText(0, "1")
self.ctrlList.header().setVisible(False)
self.ctrlList.header().setStretchLastSection(False)
self.gridLayout.addWidget(self.ctrlList, 3, 0, 1, 4)
self.fileNameLabel = QtWidgets.QLabel(Form)
font = QtGui.QFont()
font.setBold(True)
font.setWeight(75)
self.fileNameLabel.setFont(font)
self.fileNameLabel.setText("")
self.fileNameLabel.setAlignment(QtCore.Qt.AlignCenter)
self.fileNameLabel.setObjectName("fileNameLabel")
self.gridLayout.addWidget(self.fileNameLabel, 0, 1, 1, 1)
self.retranslateUi(Form)
QtCore.QMetaObject.connectSlotsByName(Form)
def retranslateUi(self, Form):
_translate = QtCore.QCoreApplication.translate
Form.setWindowTitle(_translate("Form", "Form"))
self.loadBtn.setText(_translate("Form", "Load.."))
self.saveBtn.setText(_translate("Form", "Save"))
self.saveAsBtn.setText(_translate("Form", "As.."))
self.reloadBtn.setText(_translate("Form", "Reload Libs"))
self.showChartBtn.setText(_translate("Form", "Flowchart"))
from ..widgets.FeedbackButton import FeedbackButton
from ..widgets.TreeWidget import TreeWidget

70
pyqtgraph/flowchart/FlowchartGraphicsView.py
View File

@ -4,72 +4,27 @@ from ..widgets.GraphicsView import GraphicsView
from ..GraphicsScene import GraphicsScene
from ..graphicsItems.ViewBox import ViewBox
#class FlowchartGraphicsView(QtGui.QGraphicsView):
class FlowchartGraphicsView(GraphicsView):
sigHoverOver = QtCore.Signal(object)
sigClicked = QtCore.Signal(object)
def __init__(self, widget, *args):
#QtGui.QGraphicsView.__init__(self, *args)
GraphicsView.__init__(self, *args, useOpenGL=False)
#self.setBackgroundBrush(QtGui.QBrush(QtGui.QColor(255,255,255)))
self._vb = FlowchartViewBox(widget, lockAspect=True, invertY=True)
self.setCentralItem(self._vb)
#self.scene().addItem(self.vb)
#self.setMouseTracking(True)
#self.lastPos = None
#self.setTransformationAnchor(self.AnchorViewCenter)
#self.setRenderHints(QtGui.QPainter.Antialiasing)
self.setRenderHint(QtGui.QPainter.Antialiasing, True)
#self.setDragMode(QtGui.QGraphicsView.RubberBandDrag)
#self.setRubberBandSelectionMode(QtCore.Qt.ContainsItemBoundingRect)
def viewBox(self):
return self._vb
#def mousePressEvent(self, ev):
#self.moved = False
#self.lastPos = ev.pos()
#return QtGui.QGraphicsView.mousePressEvent(self, ev)
#def mouseMoveEvent(self, ev):
#self.moved = True
#callSuper = False
#if ev.buttons() & QtCore.Qt.RightButton:
#if self.lastPos is not None:
#dif = ev.pos() - self.lastPos
#self.scale(1.01**-dif.y(), 1.01**-dif.y())
#elif ev.buttons() & QtCore.Qt.MidButton:
#if self.lastPos is not None:
#dif = ev.pos() - self.lastPos
#self.translate(dif.x(), -dif.y())
#else:
##self.emit(QtCore.SIGNAL('hoverOver'), self.items(ev.pos()))
#self.sigHoverOver.emit(self.items(ev.pos()))
#callSuper = True
#self.lastPos = ev.pos()
#if callSuper:
#QtGui.QGraphicsView.mouseMoveEvent(self, ev)
#def mouseReleaseEvent(self, ev):
#if not self.moved:
##self.emit(QtCore.SIGNAL('clicked'), ev)
#self.sigClicked.emit(ev)
#return QtGui.QGraphicsView.mouseReleaseEvent(self, ev)
class FlowchartViewBox(ViewBox):
def __init__(self, widget, *args, **kwargs):
ViewBox.__init__(self, *args, **kwargs)
self.widget = widget
#self.menu = None
#self._subMenus = None ## need a place to store the menus otherwise they dissappear (even though they've been added to other menus) ((yes, it doesn't make sense))
def getMenu(self, ev):
## called by ViewBox to create a new context menu
@ -84,26 +39,3 @@ class FlowchartViewBox(ViewBox):
menu = self.widget.buildMenu(ev.scenePos())
menu.setTitle("Add node")
return [menu, ViewBox.getMenu(self, ev)]
##class FlowchartGraphicsScene(QtGui.QGraphicsScene):
#class FlowchartGraphicsScene(GraphicsScene):
#sigContextMenuEvent = QtCore.Signal(object)
#def __init__(self, *args):
##QtGui.QGraphicsScene.__init__(self, *args)
#GraphicsScene.__init__(self, *args)
#def mouseClickEvent(self, ev):
##QtGui.QGraphicsScene.contextMenuEvent(self, ev)
#if not ev.button() in [QtCore.Qt.RightButton]:
#self.sigContextMenuEvent.emit(ev)

55
pyqtgraph/flowchart/FlowchartTemplate_pyqt5.py Normal file
View File

@ -0,0 +1,55 @@
# -*- coding: utf-8 -*-
# Form implementation generated from reading ui file './pyqtgraph/flowchart/FlowchartTemplate.ui'
#
# Created: Wed Mar 26 15:09:28 2014
# by: PyQt5 UI code generator 5.0.1
#
# WARNING! All changes made in this file will be lost!
from PyQt5 import QtCore, QtGui, QtWidgets
class Ui_Form(object):
def setupUi(self, Form):
Form.setObjectName("Form")
Form.resize(529, 329)
self.selInfoWidget = QtWidgets.QWidget(Form)
self.selInfoWidget.setGeometry(QtCore.QRect(260, 10, 264, 222))
self.selInfoWidget.setObjectName("selInfoWidget")
self.gridLayout = QtWidgets.QGridLayout(self.selInfoWidget)
self.gridLayout.setContentsMargins(0, 0, 0, 0)
self.gridLayout.setObjectName("gridLayout")
self.selDescLabel = QtWidgets.QLabel(self.selInfoWidget)
self.selDescLabel.setText("")
self.selDescLabel.setAlignment(QtCore.Qt.AlignLeading|QtCore.Qt.AlignLeft|QtCore.Qt.AlignTop)
self.selDescLabel.setWordWrap(True)
self.selDescLabel.setObjectName("selDescLabel")
self.gridLayout.addWidget(self.selDescLabel, 0, 0, 1, 1)
self.selNameLabel = QtWidgets.QLabel(self.selInfoWidget)
font = QtGui.QFont()
font.setBold(True)
font.setWeight(75)
self.selNameLabel.setFont(font)
self.selNameLabel.setText("")
self.selNameLabel.setObjectName("selNameLabel")
self.gridLayout.addWidget(self.selNameLabel, 0, 1, 1, 1)
self.selectedTree = DataTreeWidget(self.selInfoWidget)
self.selectedTree.setObjectName("selectedTree")
self.selectedTree.headerItem().setText(0, "1")
self.gridLayout.addWidget(self.selectedTree, 1, 0, 1, 2)
self.hoverText = QtWidgets.QTextEdit(Form)
self.hoverText.setGeometry(QtCore.QRect(0, 240, 521, 81))
self.hoverText.setObjectName("hoverText")
self.view = FlowchartGraphicsView(Form)
self.view.setGeometry(QtCore.QRect(0, 0, 256, 192))
self.view.setObjectName("view")
self.retranslateUi(Form)
QtCore.QMetaObject.connectSlotsByName(Form)
def retranslateUi(self, Form):
_translate = QtCore.QCoreApplication.translate
Form.setWindowTitle(_translate("Form", "Form"))
from ..widgets.DataTreeWidget import DataTreeWidget
from ..flowchart.FlowchartGraphicsView import FlowchartGraphicsView

3
pyqtgraph/flowchart/Node.py
View File

@ -6,7 +6,6 @@ from .Terminal import *
from ..pgcollections import OrderedDict
from ..debug import *
import numpy as np
from .eq import *
def strDict(d):
@ -261,7 +260,7 @@ class Node(QtCore.QObject):
for k, v in args.items():
term = self._inputs[k]
oldVal = term.value()
if not eq(oldVal, v):
if not fn.eq(oldVal, v):
changed = True
term.setValue(v, process=False)
if changed and '_updatesHandled_' not in args:

85
pyqtgraph/flowchart/Terminal.py
View File

@ -4,8 +4,7 @@ import weakref
from ..graphicsItems.GraphicsObject import GraphicsObject
from .. import functions as fn
from ..Point import Point
#from PySide import QtCore, QtGui
from .eq import *
class Terminal(object):
def __init__(self, node, name, io, optional=False, multi=False, pos=None, renamable=False, removable=False, multiable=False, bypass=None):
@ -29,9 +28,6 @@ class Terminal(object):
============== =================================================================================
"""
self._io = io
#self._isOutput = opts[0] in ['out', 'io']
#self._isInput = opts[0]] in ['in', 'io']
#self._isIO = opts[0]=='io'
self._optional = optional
self._multi = multi
self._node = weakref.ref(node)
@ -68,7 +64,7 @@ class Terminal(object):
"""If this is a single-value terminal, val should be a single value.
If this is a multi-value terminal, val should be a dict of terminal:value pairs"""
if not self.isMultiValue():
if eq(val, self._value):
if fn.eq(val, self._value):
return
self._value = val
else:
@ -81,11 +77,6 @@ class Terminal(object):
if self.isInput() and process:
self.node().update()
## Let the flowchart handle this.
#if self.isOutput():
#for c in self.connections():
#if c.isInput():
#c.inputChanged(self)
self.recolor()
def setOpts(self, **opts):
@ -95,7 +86,6 @@ class Terminal(object):
if 'multi' in opts:
self.setMultiValue(opts['multi'])
def connected(self, term):
"""Called whenever this terminal has been connected to another. (note--this function is called on both terminals)"""
if self.isInput() and term.isOutput():
@ -109,12 +99,10 @@ class Terminal(object):
if self.isMultiValue() and term in self._value:
del self._value[term]
self.node().update()
#self.recolor()
else:
if self.isInput():
self.setValue(None)
self.node().disconnected(self, term)
#self.node().update()
def inputChanged(self, term, process=True):
"""Called whenever there is a change to the input value to this terminal.
@ -178,7 +166,6 @@ class Terminal(object):
return term in self.connections()
def hasInput(self):
#conn = self.extendedConnections()
for t in self.connections():
if t.isOutput():
return True
@ -186,17 +173,10 @@ class Terminal(object):
def inputTerminals(self):
"""Return the terminal(s) that give input to this one."""
#terms = self.extendedConnections()
#for t in terms:
#if t.isOutput():
#return t
return [t for t in self.connections() if t.isOutput()]
def dependentNodes(self):
"""Return the list of nodes which receive input from this terminal."""
#conn = self.extendedConnections()
#del conn[self]
return set([t.node() for t in self.connections() if t.isInput()])
def connectTo(self, term, connectionItem=None):
@ -210,12 +190,6 @@ class Terminal(object):
for t in [self, term]:
if t.isInput() and not t._multi and len(t.connections()) > 0:
raise Exception("Cannot connect %s <-> %s: Terminal %s is already connected to %s (and does not allow multiple connections)" % (self, term, t, list(t.connections().keys())))
#if self.hasInput() and term.hasInput():
#raise Exception('Target terminal already has input')
#if term in self.node().terminals.values():
#if self.isOutput() or term.isOutput():
#raise Exception('Can not connect an output back to the same node.')
except:
if connectionItem is not None:
connectionItem.close()
@ -223,18 +197,12 @@ class Terminal(object):
if connectionItem is None:
connectionItem = ConnectionItem(self.graphicsItem(), term.graphicsItem())
#self.graphicsItem().scene().addItem(connectionItem)
self.graphicsItem().getViewBox().addItem(connectionItem)
#connectionItem.setParentItem(self.graphicsItem().parent().parent())
self._connections[term] = connectionItem
term._connections[self] = connectionItem
self.recolor()
#if self.isOutput() and term.isInput():
#term.inputChanged(self)
#if term.isInput() and term.isOutput():
#self.inputChanged(term)
self.connected(term)
term.connected(self)
@ -244,8 +212,6 @@ class Terminal(object):
if not self.connectedTo(term):
return
item = self._connections[term]
#print "removing connection", item
#item.scene().removeItem(item)
item.close()
del self._connections[term]
del term._connections[self]
@ -254,10 +220,6 @@ class Terminal(object):
self.disconnected(term)
term.disconnected(self)
#if self.isOutput() and term.isInput():
#term.inputChanged(self)
#if term.isInput() and term.isOutput():
#self.inputChanged(term)
def disconnectAll(self):
@ -270,7 +232,7 @@ class Terminal(object):
color = QtGui.QColor(0,0,0)
elif self.isInput() and not self.hasInput(): ## input terminal with no connected output terminals
color = QtGui.QColor(200,200,0)
elif self._value is None or eq(self._value, {}): ## terminal is connected but has no data (possibly due to processing error)
elif self._value is None or fn.eq(self._value, {}): ## terminal is connected but has no data (possibly due to processing error)
color = QtGui.QColor(255,255,255)
elif self.valueIsAcceptable() is None: ## terminal has data, but it is unknown if the data is ok
color = QtGui.QColor(200, 200, 0)
@ -284,7 +246,6 @@ class Terminal(object):
for t in self.connections():
t.recolor(color, recurse=False)
def rename(self, name):
oldName = self._name
self._name = name
@ -294,17 +255,6 @@ class Terminal(object):
def __repr__(self):
return "<Terminal %s.%s>" % (str(self.node().name()), str(self.name()))
#def extendedConnections(self, terms=None):
#"""Return list of terminals (including this one) that are directly or indirectly wired to this."""
#if terms is None:
#terms = {}
#terms[self] = None
#for t in self._connections:
#if t in terms:
#continue
#terms.update(t.extendedConnections(terms))
#return terms
def __hash__(self):
return id(self)
@ -318,18 +268,15 @@ class Terminal(object):
return {'io': self._io, 'multi': self._multi, 'optional': self._optional, 'renamable': self._renamable, 'removable': self._removable, 'multiable': self._multiable}
#class TerminalGraphicsItem(QtGui.QGraphicsItem):
class TerminalGraphicsItem(GraphicsObject):
def __init__(self, term, parent=None):
self.term = term
#QtGui.QGraphicsItem.__init__(self, parent)
GraphicsObject.__init__(self, parent)
self.brush = fn.mkBrush(0,0,0)
self.box = QtGui.QGraphicsRectItem(0, 0, 10, 10, self)
self.label = QtGui.QGraphicsTextItem(self.term.name(), self)
self.label.scale(0.7, 0.7)
#self.setAcceptHoverEvents(True)
self.newConnection = None
self.setFiltersChildEvents(True) ## to pick up mouse events on the rectitem
if self.term.isRenamable():
@ -339,7 +286,6 @@ class TerminalGraphicsItem(GraphicsObject):
self.setZValue(1)
self.menu = None
def labelFocusOut(self, ev):
QtGui.QGraphicsTextItem.focusOutEvent(self.label, ev)
self.labelChanged()
@ -471,8 +417,6 @@ class TerminalGraphicsItem(GraphicsObject):
break
if not gotTarget:
#print "remove unused connection"
#self.scene().removeItem(self.newConnection)
self.newConnection.close()
self.newConnection = None
else:
@ -488,12 +432,6 @@ class TerminalGraphicsItem(GraphicsObject):
self.box.setBrush(self.brush)
self.update()
#def hoverEnterEvent(self, ev):
#self.hover = True
#def hoverLeaveEvent(self, ev):
#self.hover = False
def connectPoint(self):
## return the connect position of this terminal in view coords
return self.mapToView(self.mapFromItem(self.box, self.box.boundingRect().center()))
@ -503,11 +441,9 @@ class TerminalGraphicsItem(GraphicsObject):
item.updateLine()
#class ConnectionItem(QtGui.QGraphicsItem):
class ConnectionItem(GraphicsObject):
def __init__(self, source, target=None):
#QtGui.QGraphicsItem.__init__(self)
GraphicsObject.__init__(self)
self.setFlags(
self.ItemIsSelectable |
@ -528,14 +464,12 @@ class ConnectionItem(GraphicsObject):
'selectedColor': (200, 200, 0),
'selectedWidth': 3.0,
}
#self.line = QtGui.QGraphicsLineItem(self)
self.source.getViewBox().addItem(self)
self.updateLine()
self.setZValue(0)
def close(self):
if self.scene() is not None:
#self.scene().removeItem(self.line)
self.scene().removeItem(self)
def setTarget(self, target):
@ -575,8 +509,11 @@ class ConnectionItem(GraphicsObject):
return path
def keyPressEvent(self, ev):
if not self.isSelected():
ev.ignore()
return
if ev.key() == QtCore.Qt.Key_Delete or ev.key() == QtCore.Qt.Key_Backspace:
#if isinstance(self.target, TerminalGraphicsItem):
self.source.disconnect(self.target)
ev.accept()
else:
@ -590,6 +527,7 @@ class ConnectionItem(GraphicsObject):
ev.accept()
sel = self.isSelected()
self.setSelected(True)
self.setFocus()
if not sel and self.isSelected():
self.update()
@ -600,12 +538,9 @@ class ConnectionItem(GraphicsObject):
self.hovered = False
self.update()
def boundingRect(self):
return self.shape().boundingRect()
##return self.line.boundingRect()
#px = self.pixelWidth()
#return QtCore.QRectF(-5*px, 0, 10*px, self.length)
def viewRangeChanged(self):
self.shapePath = None
self.prepareGeometryChange()
@ -629,6 +564,4 @@ class ConnectionItem(GraphicsObject):
else:
p.setPen(fn.mkPen(self.style['color'], width=self.style['width']))
#p.drawLine(0, 0, 0, self.length)
p.drawPath(self.path)

36
pyqtgraph/flowchart/eq.py
View File

@ -1,36 +0,0 @@
# -*- coding: utf-8 -*-
from numpy import ndarray, bool_
from ..metaarray import MetaArray
def eq(a, b):
"""The great missing equivalence function: Guaranteed evaluation to a single bool value."""
if a is b:
return True
try:
e = a==b
except ValueError:
return False
except AttributeError:
return False
except:
print("a:", str(type(a)), str(a))
print("b:", str(type(b)), str(b))
raise
t = type(e)
if t is bool:
return e
elif t is bool_:
return bool(e)
elif isinstance(e, ndarray) or (hasattr(e, 'implements') and e.implements('MetaArray')):
try: ## disaster: if a is an empty array and b is not, then e.all() is True
if a.shape != b.shape:
return False
except:
return False
if (hasattr(e, 'implements') and e.implements('MetaArray')):
return e.asarray().all()
else:
return e.all()
else:
raise Exception("== operator returned type %s" % str(type(e)))

13
pyqtgraph/flowchart/library/Filters.py
View File

@ -1,11 +1,11 @@
# -*- coding: utf-8 -*-
import numpy as np
from ...Qt import QtCore, QtGui
from ..Node import Node
from . import functions
from ... import functions as pgfn
from .common import *
import numpy as np
from ...python2_3 import xrange
from ... import PolyLineROI
from ... import Point
from ... import metaarray as metaarray
@ -164,8 +164,15 @@ class Gaussian(CtrlNode):
import scipy.ndimage
except ImportError:
raise Exception("GaussianFilter node requires the package scipy.ndimage.")
return pgfn.gaussianFilter(data, self.ctrls['sigma'].value())
if hasattr(data, 'implements') and data.implements('MetaArray'):
info = data.infoCopy()
filt = pgfn.gaussianFilter(data.asarray(), self.ctrls['sigma'].value())
if 'values' in info[0]:
info[0]['values'] = info[0]['values'][:filt.shape[0]]
return metaarray.MetaArray(filt, info=info)
else:
return pgfn.gaussianFilter(data, self.ctrls['sigma'].value())
class Derivative(CtrlNode):
"""Returns the pointwise derivative of the input"""

2
pyqtgraph/flowchart/library/functions.py
View File

@ -1,5 +1,7 @@
import numpy as np
from ...metaarray import MetaArray
from ...python2_3 import basestring, xrange
def downsample(data, n, axis=0, xvals='subsample'):
"""Downsample by averaging points together across axis.

240
pyqtgraph/functions.py
View File

@ -6,8 +6,18 @@ Distributed under MIT/X11 license. See license.txt for more infomation.
"""
from __future__ import division
from .python2_3 import asUnicode
import warnings
import numpy as np
import decimal, re
import ctypes
import sys, struct
from .python2_3 import asUnicode, basestring
from .Qt import QtGui, QtCore, USE_PYSIDE
from . import getConfigOption, setConfigOptions
from . import debug
Colors = {
'b': QtGui.QColor(0,0,255,255),
'g': QtGui.QColor(0,255,0,255),
@ -27,14 +37,6 @@ SI_PREFIXES_ASCII = 'yzafpnum kMGTPEZY'
from .Qt import QtGui, QtCore, USE_PYSIDE
from . import getConfigOption, setConfigOptions
import numpy as np
import decimal, re
import ctypes
import sys, struct
from . import debug
def siScale(x, minVal=1e-25, allowUnicode=True):
"""
@ -243,6 +245,7 @@ def mkBrush(*args, **kwds):
color = args
return QtGui.QBrush(mkColor(color))
def mkPen(*args, **kargs):
"""
Convenience function for constructing QPen.
@ -292,6 +295,7 @@ def mkPen(*args, **kargs):
pen.setDashPattern(dash)
return pen
def hsvColor(hue, sat=1.0, val=1.0, alpha=1.0):
"""Generate a QColor from HSVa values. (all arguments are float 0.0-1.0)"""
c = QtGui.QColor()
@ -303,10 +307,12 @@ def colorTuple(c):
"""Return a tuple (R,G,B,A) from a QColor"""
return (c.red(), c.green(), c.blue(), c.alpha())
def colorStr(c):
"""Generate a hex string code from a QColor"""
return ('%02x'*4) % colorTuple(c)
def intColor(index, hues=9, values=1, maxValue=255, minValue=150, maxHue=360, minHue=0, sat=255, alpha=255, **kargs):
"""
Creates a QColor from a single index. Useful for stepping through a predefined list of colors.
@ -331,6 +337,7 @@ def intColor(index, hues=9, values=1, maxValue=255, minValue=150, maxHue=360, mi
c.setAlpha(alpha)
return c
def glColor(*args, **kargs):
"""
Convert a color to OpenGL color format (r,g,b,a) floats 0.0-1.0
@ -367,6 +374,41 @@ def makeArrowPath(headLen=20, tipAngle=20, tailLen=20, tailWidth=3, baseAngle=0)
return path
def eq(a, b):
"""The great missing equivalence function: Guaranteed evaluation to a single bool value."""
if a is b:
return True
try:
with warnings.catch_warnings(module=np): # ignore numpy futurewarning (numpy v. 1.10)
e = a==b
except ValueError:
return False
except AttributeError:
return False
except:
print('failed to evaluate equivalence for:')
print(" a:", str(type(a)), str(a))
print(" b:", str(type(b)), str(b))
raise
t = type(e)
if t is bool:
return e
elif t is np.bool_:
return bool(e)
elif isinstance(e, np.ndarray) or (hasattr(e, 'implements') and e.implements('MetaArray')):
try: ## disaster: if a is an empty array and b is not, then e.all() is True
if a.shape != b.shape:
return False
except:
return False
if (hasattr(e, 'implements') and e.implements('MetaArray')):
return e.asarray().all()
else:
return e.all()
else:
raise Exception("== operator returned type %s" % str(type(e)))
def affineSlice(data, shape, origin, vectors, axes, order=1, returnCoords=False, **kargs):
"""
@ -447,11 +489,9 @@ def affineSlice(data, shape, origin, vectors, axes, order=1, returnCoords=False,
## Build array of sample locations.
grid = np.mgrid[tuple([slice(0,x) for x in shape])] ## mesh grid of indexes
#print shape, grid.shape
x = (grid[np.newaxis,...] * vectors.transpose()[(Ellipsis,) + (np.newaxis,)*len(shape)]).sum(axis=1) ## magic
x += origin
#print "X values:"
#print x
## iterate manually over unused axes since map_coordinates won't do it for us
if have_scipy:
extraShape = data.shape[len(axes):]
@ -465,7 +505,6 @@ def affineSlice(data, shape, origin, vectors, axes, order=1, returnCoords=False,
tr = tuple(range(1,x.ndim)) + (0,)
output = interpolateArray(data, x.transpose(tr))
tr = list(range(output.ndim))
trb = []
for i in range(min(axes)):
@ -483,7 +522,7 @@ def affineSlice(data, shape, origin, vectors, axes, order=1, returnCoords=False,
def interpolateArray(data, x, default=0.0):
"""
N-dimensional interpolation similar scipy.ndimage.map_coordinates.
N-dimensional interpolation similar to scipy.ndimage.map_coordinates.
This function returns linearly-interpolated values sampled from a regular
grid of data.
@ -492,7 +531,7 @@ def interpolateArray(data, x, default=0.0):
*x* is an array with (shape[-1] <= data.ndim) containing the locations
within *data* to interpolate.
Returns array of shape (x.shape[:-1] + data.shape)
Returns array of shape (x.shape[:-1] + data.shape[x.shape[-1]:])
For example, assume we have the following 2D image data::
@ -535,11 +574,12 @@ def interpolateArray(data, x, default=0.0):
This is useful for interpolating from arrays of colors, vertexes, etc.
"""
prof = debug.Profiler()
nd = data.ndim
md = x.shape[-1]
if md > nd:
raise TypeError("x.shape[-1] must be less than or equal to data.ndim")
# First we generate arrays of indexes that are needed to
# extract the data surrounding each point
@ -559,14 +599,12 @@ def interpolateArray(data, x, default=0.0):
# of bounds, but the interpolation will work anyway)
mask &= (xmax[...,ax] < data.shape[ax])
axisIndex = indexes[...,ax][fields[ax]]
#axisMask = mask.astype(np.ubyte).reshape((1,)*(fields.ndim-1) + mask.shape)
axisIndex[axisIndex < 0] = 0
axisIndex[axisIndex >= data.shape[ax]] = 0
fieldInds.append(axisIndex)
prof()
# Get data values surrounding each requested point
# fieldData[..., i] contains all 2**nd values needed to interpolate x[i]
fieldData = data[tuple(fieldInds)]
prof()
@ -585,8 +623,13 @@ def interpolateArray(data, x, default=0.0):
result = result.sum(axis=0)
prof()
totalMask.shape = totalMask.shape + (1,) * (nd - md)
result[~totalMask] = default
if totalMask.ndim > 0:
result[~totalMask] = default
else:
if totalMask is False:
result[:] = default
prof()
return result
@ -773,12 +816,11 @@ def solveBilinearTransform(points1, points2):
return matrix
def rescaleData(data, scale, offset, dtype=None):
def rescaleData(data, scale, offset, dtype=None, clip=None):
"""Return data rescaled and optionally cast to a new dtype::
data => (data-offset) * scale
Uses scipy.weave (if available) to improve performance.
"""
if dtype is None:
dtype = data.dtype
@ -823,9 +865,21 @@ def rescaleData(data, scale, offset, dtype=None):
setConfigOptions(useWeave=False)
#p = np.poly1d([scale, -offset*scale])
#data = p(data).astype(dtype)
d2 = data-offset
#d2 = p(data)
d2 = data - float(offset)
d2 *= scale
# Clip before converting dtype to avoid overflow
if dtype.kind in 'ui':
lim = np.iinfo(dtype)
if clip is None:
# don't let rescale cause integer overflow
d2 = np.clip(d2, lim.min, lim.max)
else:
d2 = np.clip(d2, max(clip[0], lim.min), min(clip[1], lim.max))
else:
if clip is not None:
d2 = np.clip(d2, *clip)
data = d2.astype(dtype)
return data
@ -847,15 +901,18 @@ def makeRGBA(*args, **kwds):
kwds['useRGBA'] = True
return makeARGB(*args, **kwds)
def makeARGB(data, lut=None, levels=None, scale=None, useRGBA=False):
"""
Convert an array of values into an ARGB array suitable for building QImages, OpenGL textures, etc.
Convert an array of values into an ARGB array suitable for building QImages,
OpenGL textures, etc.
Returns the ARGB array (values 0-255) and a boolean indicating whether there is alpha channel data.
This is a two stage process:
Returns the ARGB array (unsigned byte) and a boolean indicating whether
there is alpha channel data. This is a two stage process:
1) Rescale the data based on the values in the *levels* argument (min, max).
2) Determine the final output by passing the rescaled values through a lookup table.
2) Determine the final output by passing the rescaled values through a
lookup table.
Both stages are optional.
@ -874,55 +931,70 @@ def makeARGB(data, lut=None, levels=None, scale=None, useRGBA=False):
channel). The use of this feature requires that levels.shape[0] == data.shape[-1].
scale The maximum value to which data will be rescaled before being passed through the
lookup table (or returned if there is no lookup table). By default this will
be set to the length of the lookup table, or 256 is no lookup table is provided.
For OpenGL color specifications (as in GLColor4f) use scale=1.0
be set to the length of the lookup table, or 255 if no lookup table is provided.
lut Optional lookup table (array with dtype=ubyte).
Values in data will be converted to color by indexing directly from lut.
The output data shape will be input.shape + lut.shape[1:].
Note: the output of makeARGB will have the same dtype as the lookup table, so
for conversion to QImage, the dtype must be ubyte.
Lookup tables can be built using GradientWidget.
Lookup tables can be built using ColorMap or GradientWidget.
useRGBA If True, the data is returned in RGBA order (useful for building OpenGL textures).
The default is False, which returns in ARGB order for use with QImage
(Note that 'ARGB' is a term used by the Qt documentation; the _actual_ order
(Note that 'ARGB' is a term used by the Qt documentation; the *actual* order
is BGRA).
============== ==================================================================================
"""
profile = debug.Profiler()
if data.ndim not in (2, 3):
raise TypeError("data must be 2D or 3D")
if data.ndim == 3 and data.shape[2] > 4:
raise TypeError("data.shape[2] must be <= 4")
if lut is not None and not isinstance(lut, np.ndarray):
lut = np.array(lut)
if levels is not None and not isinstance(levels, np.ndarray):
levels = np.array(levels)
if levels is not None:
if levels.ndim == 1:
if len(levels) != 2:
raise Exception('levels argument must have length 2')
elif levels.ndim == 2:
if lut is not None and lut.ndim > 1:
raise Exception('Cannot make ARGB data when bot levels and lut have ndim > 2')
if levels.shape != (data.shape[-1], 2):
raise Exception('levels must have shape (data.shape[-1], 2)')
if levels is None:
# automatically decide levels based on data dtype
if data.dtype.kind == 'u':
levels = np.array([0, 2**(data.itemsize*8)-1])
elif data.dtype.kind == 'i':
s = 2**(data.itemsize*8 - 1)
levels = np.array([-s, s-1])
elif data.dtype.kind == 'b':
levels = np.array([0,1])
else:
print(levels)
raise Exception("levels argument must be 1D or 2D.")
raise Exception('levels argument is required for float input types')
if not isinstance(levels, np.ndarray):
levels = np.array(levels)
if levels.ndim == 1:
if levels.shape[0] != 2:
raise Exception('levels argument must have length 2')
elif levels.ndim == 2:
if lut is not None and lut.ndim > 1:
raise Exception('Cannot make ARGB data when both levels and lut have ndim > 2')
if levels.shape != (data.shape[-1], 2):
raise Exception('levels must have shape (data.shape[-1], 2)')
else:
raise Exception("levels argument must be 1D or 2D (got shape=%s)." % repr(levels.shape))
profile()
# Decide on maximum scaled value
if scale is None:
if lut is not None:
scale = lut.shape[0]
scale = lut.shape[0] - 1
else:
scale = 255.
## Apply levels if given
if levels is not None:
# Decide on the dtype we want after scaling
if lut is None:
dtype = np.ubyte
else:
dtype = np.min_scalar_type(lut.shape[0]-1)
# Apply levels if given
if levels is not None:
if isinstance(levels, np.ndarray) and levels.ndim == 2:
## we are going to rescale each channel independently
# we are going to rescale each channel independently
if levels.shape[0] != data.shape[-1]:
raise Exception("When rescaling multi-channel data, there must be the same number of levels as channels (data.shape[-1] == levels.shape[0])")
newData = np.empty(data.shape, dtype=int)
@ -930,20 +1002,20 @@ def makeARGB(data, lut=None, levels=None, scale=None, useRGBA=False):
minVal, maxVal = levels[i]
if minVal == maxVal:
maxVal += 1e-16
newData[...,i] = rescaleData(data[...,i], scale/(maxVal-minVal), minVal, dtype=int)
newData[...,i] = rescaleData(data[...,i], scale/(maxVal-minVal), minVal, dtype=dtype)
data = newData
else:
# Apply level scaling unless it would have no effect on the data
minVal, maxVal = levels
if minVal == maxVal:
maxVal += 1e-16
if maxVal == minVal:
data = rescaleData(data, 1, minVal, dtype=int)
else:
data = rescaleData(data, scale/(maxVal-minVal), minVal, dtype=int)
if minVal != 0 or maxVal != scale:
if minVal == maxVal:
maxVal += 1e-16
data = rescaleData(data, scale/(maxVal-minVal), minVal, dtype=dtype)
profile()
## apply LUT if given
# apply LUT if given
if lut is not None:
data = applyLookupTable(data, lut)
else:
@ -952,16 +1024,18 @@ def makeARGB(data, lut=None, levels=None, scale=None, useRGBA=False):
profile()
## copy data into ARGB ordered array
# this will be the final image array
imgData = np.empty(data.shape[:2]+(4,), dtype=np.ubyte)
profile()
# decide channel order
if useRGBA:
order = [0,1,2,3] ## array comes out RGBA
order = [0,1,2,3] # array comes out RGBA
else:
order = [2,1,0,3] ## for some reason, the colors line up as BGR in the final image.
order = [2,1,0,3] # for some reason, the colors line up as BGR in the final image.
# copy data into image array
if data.ndim == 2:
# This is tempting:
# imgData[..., :3] = data[..., np.newaxis]
@ -977,6 +1051,7 @@ def makeARGB(data, lut=None, levels=None, scale=None, useRGBA=False):
profile()
# add opaque alpha channel if needed
if data.ndim == 2 or data.shape[2] == 3:
alpha = False
imgData[..., 3] = 255
@ -1106,10 +1181,9 @@ def imageToArray(img, copy=False, transpose=True):
# If this works on all platforms, then there is no need to use np.asarray..
arr = np.frombuffer(ptr, np.ubyte, img.byteCount())
arr = arr.reshape(img.height(), img.width(), 4)
if fmt == img.Format_RGB32:
arr = arr.reshape(img.height(), img.width(), 3)
elif fmt == img.Format_ARGB32 or fmt == img.Format_ARGB32_Premultiplied:
arr = arr.reshape(img.height(), img.width(), 4)
arr[...,3] = 255
if copy:
arr = arr.copy()
@ -1304,22 +1378,17 @@ def arrayToQPath(x, y, connect='all'):
arr[1:-1]['y'] = y
# decide which points are connected by lines
if connect == 'pairs':
connect = np.empty((n/2,2), dtype=np.int32)
if connect.size != n:
raise Exception("x,y array lengths must be multiple of 2 to use connect='pairs'")
connect[:,0] = 1
connect[:,1] = 0
connect = connect.flatten()
if connect == 'finite':
connect = np.isfinite(x) & np.isfinite(y)
arr[1:-1]['c'] = connect
if connect == 'all':
if eq(connect, 'all'):
arr[1:-1]['c'] = 1
elif eq(connect, 'pairs'):
arr[1:-1]['c'][::2] = 1
arr[1:-1]['c'][1::2] = 0
elif eq(connect, 'finite'):
arr[1:-1]['c'] = np.isfinite(x) & np.isfinite(y)
elif isinstance(connect, np.ndarray):
arr[1:-1]['c'] = connect
else:
raise Exception('connect argument must be "all", "pairs", or array')
raise Exception('connect argument must be "all", "pairs", "finite", or array')
#profiler('fill array')
# write last 0
@ -1510,7 +1579,7 @@ def isocurve(data, level, connected=False, extendToEdge=False, path=False):
#vertIndex = i - 2*j*i + 3*j + 4*k ## this is just to match Bourk's vertex numbering scheme
vertIndex = i+2*j
#print i,j,k," : ", fields[i,j,k], 2**vertIndex
index += fields[i,j] * 2**vertIndex
np.add(index, fields[i,j] * 2**vertIndex, out=index, casting='unsafe')
#print index
#print index
@ -1660,7 +1729,7 @@ def isosurface(data, level):
See Paul Bourke, "Polygonising a Scalar Field"
(http://paulbourke.net/geometry/polygonise/)
*data* 3D numpy array of scalar values
*data* 3D numpy array of scalar values. Must be contiguous.
*level* The level at which to generate an isosurface
Returns an array of vertex coordinates (Nv, 3) and an array of
@ -2012,7 +2081,10 @@ def isosurface(data, level):
else:
faceShiftTables, edgeShifts, edgeTable, nTableFaces = IsosurfaceDataCache
# We use strides below, which means we need contiguous array input.
# Ideally we can fix this just by removing the dependency on strides.
if not data.flags['C_CONTIGUOUS']:
raise TypeError("isosurface input data must be c-contiguous.")
## mark everything below the isosurface level
mask = data < level
@ -2026,7 +2098,7 @@ def isosurface(data, level):
for k in [0,1]:
fields[i,j,k] = mask[slices[i], slices[j], slices[k]]
vertIndex = i - 2*j*i + 3*j + 4*k ## this is just to match Bourk's vertex numbering scheme
index += fields[i,j,k] * 2**vertIndex
np.add(index, fields[i,j,k] * 2**vertIndex, out=index, casting='unsafe')
### Generate table of edges that have been cut
cutEdges = np.zeros([x+1 for x in index.shape]+[3], dtype=np.uint32)
@ -2095,7 +2167,7 @@ def isosurface(data, level):
### expensive:
verts = faceShiftTables[i][cellInds]
#profiler()
verts[...,:3] += cells[:,np.newaxis,np.newaxis,:] ## we now have indexes into cutEdges
np.add(verts[...,:3], cells[:,np.newaxis,np.newaxis,:], out=verts[...,:3], casting='unsafe') ## we now have indexes into cutEdges
verts = verts.reshape((verts.shape[0]*i,)+verts.shape[2:])
#profiler()

5
pyqtgraph/graphicsItems/CurvePoint.py
View File

@ -91,6 +91,11 @@ class CurvePoint(GraphicsObject):
pass
def makeAnimation(self, prop='position', start=0.0, end=1.0, duration=10000, loop=1):
# In Python 3, a bytes object needs to be used as a property name in
# QPropertyAnimation. PyQt stopped automatically encoding a str when a
# QByteArray was expected in v5.5 (see qbytearray.sip).
if not isinstance(prop, bytes):
prop = prop.encode('latin-1')
anim = QtCore.QPropertyAnimation(self, prop)
anim.setDuration(duration)
anim.setStartValue(start)

26
pyqtgraph/graphicsItems/FillBetweenItem.py
View File

@ -1,4 +1,4 @@
from ..Qt import QtGui
from ..Qt import QtGui, USE_PYQT5, USE_PYQT4, USE_PYSIDE
from .. import functions as fn
from .PlotDataItem import PlotDataItem
from .PlotCurveItem import PlotCurveItem
@ -7,7 +7,7 @@ class FillBetweenItem(QtGui.QGraphicsPathItem):
"""
GraphicsItem filling the space between two PlotDataItems.
"""
def __init__(self, curve1=None, curve2=None, brush=None):
def __init__(self, curve1=None, curve2=None, brush=None, pen=None):
QtGui.QGraphicsPathItem.__init__(self)
self.curves = None
if curve1 is not None and curve2 is not None:
@ -16,9 +16,16 @@ class FillBetweenItem(QtGui.QGraphicsPathItem):
raise Exception("Must specify two curves to fill between.")
if brush is not None:
self.setBrush(fn.mkBrush(brush))
self.setBrush(brush)
self.setPen(pen)
self.updatePath()
def setBrush(self, *args, **kwds):
QtGui.QGraphicsPathItem.setBrush(self, fn.mkBrush(*args, **kwds))
def setPen(self, *args, **kwds):
QtGui.QGraphicsPathItem.setPen(self, fn.mkPen(*args, **kwds))
def setCurves(self, curve1, curve2):
"""Set the curves to fill between.
@ -26,7 +33,6 @@ class FillBetweenItem(QtGui.QGraphicsPathItem):
Added in version 0.9.9
"""
if self.curves is not None:
for c in self.curves:
try:
@ -63,11 +69,15 @@ class FillBetweenItem(QtGui.QGraphicsPathItem):
paths.append(c.getPath())
path = QtGui.QPainterPath()
p1 = paths[0].toSubpathPolygons()
p2 = paths[1].toReversed().toSubpathPolygons()
if len(p1) == 0 or len(p2) == 0:
transform = QtGui.QTransform()
ps1 = paths[0].toSubpathPolygons(transform)
ps2 = paths[1].toReversed().toSubpathPolygons(transform)
ps2.reverse()
if len(ps1) == 0 or len(ps2) == 0:
self.setPath(QtGui.QPainterPath())
return
path.addPolygon(p1[0] + p2[0])
for p1, p2 in zip(ps1, ps2):
path.addPolygon(p1 + p2)
self.setPath(path)

46
pyqtgraph/graphicsItems/GradientEditorItem.py
View File

@ -1,18 +1,18 @@
import weakref
import numpy as np
from ..Qt import QtGui, QtCore
from ..python2_3 import sortList
from .. import functions as fn
from .GraphicsObject import GraphicsObject
from .GraphicsWidget import GraphicsWidget
from ..widgets.SpinBox import SpinBox
import weakref
from ..pgcollections import OrderedDict
from ..colormap import ColorMap
from ..python2_3 import cmp
import numpy as np
__all__ = ['TickSliderItem', 'GradientEditorItem']
Gradients = OrderedDict([
('thermal', {'ticks': [(0.3333, (185, 0, 0, 255)), (0.6666, (255, 220, 0, 255)), (1, (255, 255, 255, 255)), (0, (0, 0, 0, 255))], 'mode': 'rgb'}),
('flame', {'ticks': [(0.2, (7, 0, 220, 255)), (0.5, (236, 0, 134, 255)), (0.8, (246, 246, 0, 255)), (1.0, (255, 255, 255, 255)), (0.0, (0, 0, 0, 255))], 'mode': 'rgb'}),
@ -24,7 +24,12 @@ Gradients = OrderedDict([
('grey', {'ticks': [(0.0, (0, 0, 0, 255)), (1.0, (255, 255, 255, 255))], 'mode': 'rgb'}),
])
def addGradientListToDocstring():
"""Decorator to add list of current pre-defined gradients to the end of a function docstring."""
def dec(fn):
fn.__doc__ = fn.__doc__ + str(Gradients.keys()).strip('[').strip(']')
return fn
return dec
@ -117,16 +122,20 @@ class TickSliderItem(GraphicsWidget):
self.resetTransform()
ort = orientation
if ort == 'top':
self.scale(1, -1)
self.translate(0, -self.height())
transform = QtGui.QTransform.fromScale(1, -1)
transform.translate(0, -self.height())
self.setTransform(transform)
elif ort == 'left':
self.rotate(270)
self.scale(1, -1)
self.translate(-self.height(), -self.maxDim)
transform = QtGui.QTransform()
transform.rotate(270)
transform.scale(1, -1)
transform.translate(-self.height(), -self.maxDim)
self.setTransform(transform)
elif ort == 'right':
self.rotate(270)
self.translate(-self.height(), 0)
#self.setPos(0, -self.height())
transform = QtGui.QTransform()
transform.rotate(270)
transform.translate(-self.height(), 0)
self.setTransform(transform)
elif ort != 'bottom':
raise Exception("%s is not a valid orientation. Options are 'left', 'right', 'top', and 'bottom'" %str(ort))
@ -468,11 +477,12 @@ class GradientEditorItem(TickSliderItem):
act = self.sender()
self.loadPreset(act.name)
@addGradientListToDocstring()
def loadPreset(self, name):
"""
Load a predefined gradient.
Load a predefined gradient. Currently defined gradients are:
"""## TODO: provide image with names of defined gradients
""" ## TODO: provide image with names of defined gradients
#global Gradients
self.restoreState(Gradients[name])
@ -784,10 +794,14 @@ class GradientEditorItem(TickSliderItem):
self.sigGradientChangeFinished.emit(self)
class Tick(QtGui.QGraphicsObject): ## NOTE: Making this a subclass of GraphicsObject instead results in
class Tick(QtGui.QGraphicsWidget): ## NOTE: Making this a subclass of GraphicsObject instead results in
## activating this bug: https://bugreports.qt-project.org/browse/PYSIDE-86
## private class
# When making Tick a subclass of QtGui.QGraphicsObject as origin,
# ..GraphicsScene.items(self, *args) will get Tick object as a
# class of QtGui.QMultimediaWidgets.QGraphicsVideoItem in python2.7-PyQt5(5.4.0)
sigMoving = QtCore.Signal(object)
sigMoved = QtCore.Signal(object)
@ -805,7 +819,7 @@ class Tick(QtGui.QGraphicsObject): ## NOTE: Making this a subclass of GraphicsO
self.pg.lineTo(QtCore.QPointF(scale/3**0.5, scale))
self.pg.closeSubpath()
QtGui.QGraphicsObject.__init__(self)
QtGui.QGraphicsWidget.__init__(self)
self.setPos(pos[0], pos[1])
if self.movable:
self.setZValue(1)

4
pyqtgraph/graphicsItems/GraphicsItem.py
View File

@ -37,9 +37,6 @@ class GraphicsItem(object):
if register:
GraphicsScene.registerObject(self) ## workaround for pyqt bug in graphicsscene.items()
def getViewWidget(self):
"""
Return the view widget for this item.
@ -95,7 +92,6 @@ class GraphicsItem(object):
def forgetViewBox(self):
self._viewBox = None
def deviceTransform(self, viewportTransform=None):
"""
Return the transform that converts local item coordinates to device coordinates (usually pixels).

14
pyqtgraph/graphicsItems/HistogramLUTItem.py
View File

@ -139,6 +139,9 @@ class HistogramLUTItem(GraphicsWidget):
#self.region.setBounds([vr.top(), vr.bottom()])
def setImageItem(self, img):
"""Set an ImageItem to have its levels and LUT automatically controlled
by this HistogramLUTItem.
"""
self.imageItem = weakref.ref(img)
img.sigImageChanged.connect(self.imageChanged)
img.setLookupTable(self.getLookupTable) ## send function pointer, not the result
@ -163,6 +166,9 @@ class HistogramLUTItem(GraphicsWidget):
self.sigLookupTableChanged.emit(self)
def getLookupTable(self, img=None, n=None, alpha=None):
"""Return a lookup table from the color gradient defined by this
HistogramLUTItem.
"""
if n is None:
if img.dtype == np.uint8:
n = 256
@ -173,8 +179,8 @@ class HistogramLUTItem(GraphicsWidget):
return self.lut
def regionChanged(self):
#if self.imageItem is not None:
#self.imageItem.setLevels(self.region.getRegion())
if self.imageItem() is not None:
self.imageItem().setLevels(self.region.getRegion())
self.sigLevelChangeFinished.emit(self)
#self.update()
@ -199,7 +205,11 @@ class HistogramLUTItem(GraphicsWidget):
profiler('set region')
def getLevels(self):
"""Return the min and max levels.
"""
return self.region.getRegion()
def setLevels(self, mn, mx):
"""Set the min and max levels.
"""
self.region.setRegion([mn, mx])

205
pyqtgraph/graphicsItems/ImageItem.py
View File

@ -7,6 +7,8 @@ from .. import functions as fn
from .. import debug as debug
from .GraphicsObject import GraphicsObject
from ..Point import Point
from .. import getConfigOption
__all__ = ['ImageItem']
@ -28,7 +30,6 @@ class ImageItem(GraphicsObject):
for controlling the levels and lookup table used to display the image.
"""
sigImageChanged = QtCore.Signal()
sigRemoveRequested = QtCore.Signal(object) # self; emitted when 'remove' is selected from context menu
@ -47,6 +48,12 @@ class ImageItem(GraphicsObject):
self.lut = None
self.autoDownsample = False
self.axisOrder = getConfigOption('imageAxisOrder')
# In some cases, we use a modified lookup table to handle both rescaling
# and LUT more efficiently
self._effectiveLut = None
self.drawKernel = None
self.border = None
self.removable = False
@ -75,11 +82,6 @@ class ImageItem(GraphicsObject):
self.paintMode = mode
self.update()
## use setOpacity instead.
#def setAlpha(self, alpha):
#self.setOpacity(alpha)
#self.updateImage()
def setBorder(self, b):
self.border = fn.mkPen(b)
self.update()
@ -87,28 +89,20 @@ class ImageItem(GraphicsObject):
def width(self):
if self.image is None:
return None
return self.image.shape[0]
axis = 0 if self.axisOrder == 'col-major' else 1
return self.image.shape[axis]
def height(self):
if self.image is None:
return None
return self.image.shape[1]
axis = 1 if self.axisOrder == 'col-major' else 0
return self.image.shape[axis]
def boundingRect(self):
if self.image is None:
return QtCore.QRectF(0., 0., 0., 0.)
return QtCore.QRectF(0., 0., float(self.width()), float(self.height()))
#def setClipLevel(self, level=None):
#self.clipLevel = level
#self.updateImage()
#def paint(self, p, opt, widget):
#pass
#if self.pixmap is not None:
#p.drawPixmap(0, 0, self.pixmap)
#print "paint"
def setLevels(self, levels, update=True):
"""
Set image scaling levels. Can be one of:
@ -119,9 +113,13 @@ class ImageItem(GraphicsObject):
Only the first format is compatible with lookup tables. See :func:`makeARGB <pyqtgraph.makeARGB>`
for more details on how levels are applied.
"""
self.levels = levels
if update:
self.updateImage()
if levels is not None:
levels = np.asarray(levels)
if not fn.eq(levels, self.levels):
self.levels = levels
self._effectiveLut = None
if update:
self.updateImage()
def getLevels(self):
return self.levels
@ -137,9 +135,11 @@ class ImageItem(GraphicsObject):
Ordinarily, this table is supplied by a :class:`HistogramLUTItem <pyqtgraph.HistogramLUTItem>`
or :class:`GradientEditorItem <pyqtgraph.GradientEditorItem>`.
"""
self.lut = lut
if update:
self.updateImage()
if lut is not self.lut:
self.lut = lut
self._effectiveLut = None
if update:
self.updateImage()
def setAutoDownsample(self, ads):
"""
@ -152,7 +152,11 @@ class ImageItem(GraphicsObject):
self.update()
def setOpts(self, update=True, **kargs):
if 'axisOrder' in kargs:
val = kargs['axisOrder']
if val not in ('row-major', 'col-major'):
raise ValueError('axisOrder must be either "row-major" or "col-major"')
self.axisOrder = val
if 'lut' in kargs:
self.setLookupTable(kargs['lut'], update=update)
if 'levels' in kargs:
@ -195,7 +199,7 @@ class ImageItem(GraphicsObject):
image (numpy array) Specifies the image data. May be 2D (width, height) or
3D (width, height, RGBa). The array dtype must be integer or floating
point of any bit depth. For 3D arrays, the third dimension must
be of length 3 (RGB) or 4 (RGBA).
be of length 3 (RGB) or 4 (RGBA). See *notes* below.
autoLevels (bool) If True, this forces the image to automatically select
levels based on the maximum and minimum values in the data.
By default, this argument is true unless the levels argument is
@ -206,12 +210,26 @@ class ImageItem(GraphicsObject):
data. By default, this will be set to the minimum and maximum values
in the image. If the image array has dtype uint8, no rescaling is necessary.
opacity (float 0.0-1.0)
compositionMode see :func:`setCompositionMode <pyqtgraph.ImageItem.setCompositionMode>`
compositionMode See :func:`setCompositionMode <pyqtgraph.ImageItem.setCompositionMode>`
border Sets the pen used when drawing the image border. Default is None.
autoDownsample (bool) If True, the image is automatically downsampled to match the
screen resolution. This improves performance for large images and
reduces aliasing.
================= =========================================================================
**Notes:**
For backward compatibility, image data is assumed to be in column-major order (column, row).
However, most image data is stored in row-major order (row, column) and will need to be
transposed before calling setImage()::
imageitem.setImage(imagedata.T)
This requirement can be changed by calling ``image.setOpts(axisOrder='row-major')`` or
by changing the ``imageAxisOrder`` :ref:`global configuration option <apiref_config>`.
"""
profile = debug.Profiler()
@ -222,7 +240,10 @@ class ImageItem(GraphicsObject):
else:
gotNewData = True
shapeChanged = (self.image is None or image.shape != self.image.shape)
self.image = image.view(np.ndarray)
image = image.view(np.ndarray)
if self.image is None or image.dtype != self.image.dtype:
self._effectiveLut = None
self.image = image
if self.image.shape[0] > 2**15-1 or self.image.shape[1] > 2**15-1:
if 'autoDownsample' not in kargs:
kargs['autoDownsample'] = True
@ -261,6 +282,53 @@ class ImageItem(GraphicsObject):
if gotNewData:
self.sigImageChanged.emit()
def dataTransform(self):
"""Return the transform that maps from this image's input array to its
local coordinate system.
This transform corrects for the transposition that occurs when image data
is interpreted in row-major order.
"""
# Might eventually need to account for downsampling / clipping here
tr = QtGui.QTransform()
if self.axisOrder == 'row-major':
# transpose
tr.scale(1, -1)
tr.rotate(-90)
return tr
def inverseDataTransform(self):
"""Return the transform that maps from this image's local coordinate
system to its input array.
See dataTransform() for more information.
"""
tr = QtGui.QTransform()
if self.axisOrder == 'row-major':
# transpose
tr.scale(1, -1)
tr.rotate(-90)
return tr
def mapToData(self, obj):
tr = self.inverseDataTransform()
return tr.map(obj)
def mapFromData(self, obj):
tr = self.dataTransform()
return tr.map(obj)
def quickMinMax(self, targetSize=1e6):
"""
Estimate the min/max values of the image data by subsampling.
"""
data = self.image
while data.size > targetSize:
ax = np.argmax(data.shape)
sl = [slice(None)] * data.ndim
sl[ax] = slice(None, None, 2)
data = data[sl]
return nanmin(data), nanmax(data)
def updateImage(self, *args, **kargs):
## used for re-rendering qimage from self.image.
@ -291,14 +359,48 @@ class ImageItem(GraphicsObject):
y = self.mapToDevice(QtCore.QPointF(0,1))
w = Point(x-o).length()
h = Point(y-o).length()
xds = max(1, int(1/w))
yds = max(1, int(1/h))
image = fn.downsample(self.image, xds, axis=0)
image = fn.downsample(image, yds, axis=1)
if w == 0 or h == 0:
self.qimage = None
return
xds = max(1, int(1.0 / w))
yds = max(1, int(1.0 / h))
axes = [1, 0] if self.axisOrder == 'row-major' else [0, 1]
image = fn.downsample(self.image, xds, axis=axes[0])
image = fn.downsample(image, yds, axis=axes[1])
self._lastDownsample = (xds, yds)
else:
image = self.image
argb, alpha = fn.makeARGB(image.transpose((1, 0, 2)[:image.ndim]), lut=lut, levels=self.levels)
# if the image data is a small int, then we can combine levels + lut
# into a single lut for better performance
levels = self.levels
if levels is not None and levels.ndim == 1 and image.dtype in (np.ubyte, np.uint16):
if self._effectiveLut is None:
eflsize = 2**(image.itemsize*8)
ind = np.arange(eflsize)
minlev, maxlev = levels
levdiff = maxlev - minlev
levdiff = 1 if levdiff == 0 else levdiff # don't allow division by 0
if lut is None:
efflut = fn.rescaleData(ind, scale=255./levdiff,
offset=minlev, dtype=np.ubyte)
else:
lutdtype = np.min_scalar_type(lut.shape[0]-1)
efflut = fn.rescaleData(ind, scale=(lut.shape[0]-1)/levdiff,
offset=minlev, dtype=lutdtype, clip=(0, lut.shape[0]-1))
efflut = lut[efflut]
self._effectiveLut = efflut
lut = self._effectiveLut
levels = None
# Assume images are in column-major order for backward compatibility
# (most images are in row-major order)
if self.axisOrder == 'col-major':
image = image.transpose((1, 0, 2)[:image.ndim])
argb, alpha = fn.makeARGB(image, lut=lut, levels=levels)
self.qimage = fn.makeQImage(argb, alpha, transpose=False)
def paint(self, p, *args):
@ -314,7 +416,8 @@ class ImageItem(GraphicsObject):
p.setCompositionMode(self.paintMode)
profile('set comp mode')
p.drawImage(QtCore.QRectF(0,0,self.image.shape[0],self.image.shape[1]), self.qimage)
shape = self.image.shape[:2] if self.axisOrder == 'col-major' else self.image.shape[:2][::-1]
p.drawImage(QtCore.QRectF(0,0,*shape), self.qimage)
profile('p.drawImage')
if self.border is not None:
p.setPen(self.border)
@ -347,8 +450,8 @@ class ImageItem(GraphicsObject):
if self.image is None:
return None,None
if step == 'auto':
step = (np.ceil(self.image.shape[0] / targetImageSize),
np.ceil(self.image.shape[1] / targetImageSize))
step = (int(np.ceil(self.image.shape[0] / targetImageSize)),
int(np.ceil(self.image.shape[1] / targetImageSize)))
if np.isscalar(step):
step = (step, step)
stepData = self.image[::step[0], ::step[1]]
@ -365,6 +468,7 @@ class ImageItem(GraphicsObject):
bins = 500
kwds['bins'] = bins
stepData = stepData[np.isfinite(stepData)]
hist = np.histogram(stepData, **kwds)
return hist[1][:-1], hist[0]
@ -400,21 +504,6 @@ class ImageItem(GraphicsObject):
self.qimage = None
self.update()
#def mousePressEvent(self, ev):
#if self.drawKernel is not None and ev.button() == QtCore.Qt.LeftButton:
#self.drawAt(ev.pos(), ev)
#ev.accept()
#else:
#ev.ignore()
#def mouseMoveEvent(self, ev):
##print "mouse move", ev.pos()
#if self.drawKernel is not None:
#self.drawAt(ev.pos(), ev)
#def mouseReleaseEvent(self, ev):
#pass
def mouseDragEvent(self, ev):
if ev.button() != QtCore.Qt.LeftButton:
ev.ignore()
@ -451,24 +540,18 @@ class ImageItem(GraphicsObject):
self.menu.remAct = remAct
return self.menu
def hoverEvent(self, ev):
if not ev.isExit() and self.drawKernel is not None and ev.acceptDrags(QtCore.Qt.LeftButton):
ev.acceptClicks(QtCore.Qt.LeftButton) ## we don't use the click, but we also don't want anyone else to use it.
ev.acceptClicks(QtCore.Qt.RightButton)
#self.box.setBrush(fn.mkBrush('w'))
elif not ev.isExit() and self.removable:
ev.acceptClicks(QtCore.Qt.RightButton) ## accept context menu clicks
#else:
#self.box.setBrush(self.brush)
#self.update()
def tabletEvent(self, ev):
print(ev.device())
print(ev.pointerType())
print(ev.pressure())
pass
#print(ev.device())
#print(ev.pointerType())
#print(ev.pressure())
def drawAt(self, pos, ev=None):
pos = [int(pos.x()), int(pos.y())]

285
pyqtgraph/graphicsItems/InfiniteLine.py
View File

@ -1,12 +1,16 @@
from ..Qt import QtGui, QtCore
from ..Point import Point
from .GraphicsObject import GraphicsObject
from .TextItem import TextItem
from .ViewBox import ViewBox
from .. import functions as fn
import numpy as np
import weakref
__all__ = ['InfiniteLine']
__all__ = ['InfiniteLine', 'InfLineLabel']
class InfiniteLine(GraphicsObject):
"""
**Bases:** :class:`GraphicsObject <pyqtgraph.GraphicsObject>`
@ -26,7 +30,8 @@ class InfiniteLine(GraphicsObject):
sigPositionChangeFinished = QtCore.Signal(object)
sigPositionChanged = QtCore.Signal(object)
def __init__(self, pos=None, angle=90, pen=None, movable=False, bounds=None):
def __init__(self, pos=None, angle=90, pen=None, movable=False, bounds=None,
hoverPen=None, label=None, labelOpts=None, name=None):
"""
=============== ==================================================================
**Arguments:**
@ -37,10 +42,23 @@ class InfiniteLine(GraphicsObject):
for :func:`mkPen <pyqtgraph.mkPen>`. Default pen is transparent
yellow.
movable If True, the line can be dragged to a new position by the user.
hoverPen Pen to use when drawing line when hovering over it. Can be any
arguments that are valid for :func:`mkPen <pyqtgraph.mkPen>`.
Default pen is red.
bounds Optional [min, max] bounding values. Bounds are only valid if the
line is vertical or horizontal.
label Text to be displayed in a label attached to the line, or
None to show no label (default is None). May optionally
include formatting strings to display the line value.
labelOpts A dict of keyword arguments to use when constructing the
text label. See :class:`InfLineLabel`.
name Name of the item
=============== ==================================================================
"""
self._boundingRect = None
self._line = None
self._name = name
GraphicsObject.__init__(self)
@ -53,17 +71,23 @@ class InfiniteLine(GraphicsObject):
self.mouseHovering = False
self.p = [0, 0]
self.setAngle(angle)
if pos is None:
pos = Point(0,0)
self.setPos(pos)
if pen is None:
pen = (200, 200, 100)
self.setPen(pen)
self.setHoverPen(color=(255,0,0), width=self.pen.width())
if hoverPen is None:
self.setHoverPen(color=(255,0,0), width=self.pen.width())
else:
self.setHoverPen(hoverPen)
self.currentPen = self.pen
#self.setFlag(self.ItemSendsScenePositionChanges)
if label is not None:
labelOpts = {} if labelOpts is None else labelOpts
self.label = InfLineLabel(self, text=label, **labelOpts)
def setMovable(self, m):
"""Set whether the line is movable by the user."""
@ -137,8 +161,8 @@ class InfiniteLine(GraphicsObject):
if self.p != newPos:
self.p = newPos
self._invalidateCache()
GraphicsObject.setPos(self, Point(self.p))
self.update()
self.sigPositionChanged.emit(self)
def getXPos(self):
@ -176,24 +200,33 @@ class InfiniteLine(GraphicsObject):
#print "ignore", change
#return GraphicsObject.itemChange(self, change, val)
def boundingRect(self):
#br = UIGraphicsItem.boundingRect(self)
br = self.viewRect()
## add a 4-pixel radius around the line for mouse interaction.
def _invalidateCache(self):
self._line = None
self._boundingRect = None
px = self.pixelLength(direction=Point(1,0), ortho=True) ## get pixel length orthogonal to the line
if px is None:
px = 0
w = (max(4, self.pen.width()/2, self.hoverPen.width()/2)+1) * px
br.setBottom(-w)
br.setTop(w)
return br.normalized()
def boundingRect(self):
if self._boundingRect is None:
#br = UIGraphicsItem.boundingRect(self)
br = self.viewRect()
if br is None:
return QtCore.QRectF()
## add a 4-pixel radius around the line for mouse interaction.
px = self.pixelLength(direction=Point(1,0), ortho=True) ## get pixel length orthogonal to the line
if px is None:
px = 0
w = (max(4, self.pen.width()/2, self.hoverPen.width()/2)+1) * px
br.setBottom(-w)
br.setTop(w)
br = br.normalized()
self._boundingRect = br
self._line = QtCore.QLineF(br.right(), 0.0, br.left(), 0.0)
return self._boundingRect
def paint(self, p, *args):
br = self.boundingRect()
p.setPen(self.currentPen)
p.drawLine(Point(br.right(), 0), Point(br.left(), 0))
#p.drawRect(self.boundingRect())
p.drawLine(self._line)
def dataBounds(self, axis, frac=1.0, orthoRange=None):
if axis == 0:
@ -212,15 +245,11 @@ class InfiniteLine(GraphicsObject):
if not self.moving:
return
#pressDelta = self.mapToParent(ev.buttonDownPos()) - Point(self.p)
self.setPos(self.cursorOffset + self.mapToParent(ev.pos()))
self.sigDragged.emit(self)
if ev.isFinish():
self.moving = False
self.sigPositionChangeFinished.emit(self)
#else:
#print ev
def mouseClickEvent(self, ev):
if self.moving and ev.button() == QtCore.Qt.RightButton:
@ -247,29 +276,195 @@ class InfiniteLine(GraphicsObject):
self.currentPen = self.pen
self.update()
#def hoverEnterEvent(self, ev):
#print "line hover enter"
#ev.ignore()
#self.updateHoverPen()
def viewTransformChanged(self):
"""
Called whenever the transformation matrix of the view has changed.
(eg, the view range has changed or the view was resized)
"""
self._invalidateCache()
#def hoverMoveEvent(self, ev):
#print "line hover move"
#ev.ignore()
#self.updateHoverPen()
def setName(self, name):
self._name = name
#def hoverLeaveEvent(self, ev):
#print "line hover leave"
#ev.ignore()
#self.updateHoverPen(False)
def name(self):
return self._name
#def updateHoverPen(self, hover=None):
#if hover is None:
#scene = self.scene()
#hover = scene.claimEvent(self, QtCore.Qt.LeftButton, scene.Drag)
#if hover:
#self.currentPen = fn.mkPen(255, 0,0)
#else:
#self.currentPen = self.pen
#self.update()
class InfLineLabel(TextItem):
"""
A TextItem that attaches itself to an InfiniteLine.
This class extends TextItem with the following features:
* Automatically positions adjacent to the line at a fixed position along
the line and within the view box.
* Automatically reformats text when the line value has changed.
* Can optionally be dragged to change its location along the line.
* Optionally aligns to its parent line.
=============== ==================================================================
**Arguments:**
line The InfiniteLine to which this label will be attached.
text String to display in the label. May contain a {value} formatting
string to display the current value of the line.
movable Bool; if True, then the label can be dragged along the line.
position Relative position (0.0-1.0) within the view to position the label
along the line.
anchors List of (x,y) pairs giving the text anchor positions that should
be used when the line is moved to one side of the view or the
other. This allows text to switch to the opposite side of the line
as it approaches the edge of the view. These are automatically
selected for some common cases, but may be specified if the
default values give unexpected results.
=============== ==================================================================
All extra keyword arguments are passed to TextItem. A particularly useful
option here is to use `rotateAxis=(1, 0)`, which will cause the text to
be automatically rotated parallel to the line.
"""
def __init__(self, line, text="", movable=False, position=0.5, anchors=None, **kwds):
self.line = line
self.movable = movable
self.moving = False
self.orthoPos = position # text will always be placed on the line at a position relative to view bounds
self.format = text
self.line.sigPositionChanged.connect(self.valueChanged)
self._endpoints = (None, None)
if anchors is None:
# automatically pick sensible anchors
rax = kwds.get('rotateAxis', None)
if rax is not None:
if tuple(rax) == (1,0):
anchors = [(0.5, 0), (0.5, 1)]
else:
anchors = [(0, 0.5), (1, 0.5)]
else:
if line.angle % 180 == 0:
anchors = [(0.5, 0), (0.5, 1)]
else:
anchors = [(0, 0.5), (1, 0.5)]
self.anchors = anchors
TextItem.__init__(self, **kwds)
self.setParentItem(line)
self.valueChanged()
def valueChanged(self):
if not self.isVisible():
return
value = self.line.value()
self.setText(self.format.format(value=value))
self.updatePosition()
def getEndpoints(self):
# calculate points where line intersects view box
# (in line coordinates)
if self._endpoints[0] is None:
lr = self.line.boundingRect()
pt1 = Point(lr.left(), 0)
pt2 = Point(lr.right(), 0)
if self.line.angle % 90 != 0:
# more expensive to find text position for oblique lines.
view = self.getViewBox()
if not self.isVisible() or not isinstance(view, ViewBox):
# not in a viewbox, skip update
return (None, None)
p = QtGui.QPainterPath()
p.moveTo(pt1)
p.lineTo(pt2)
p = self.line.itemTransform(view)[0].map(p)
vr = QtGui.QPainterPath()
vr.addRect(view.boundingRect())
paths = vr.intersected(p).toSubpathPolygons(QtGui.QTransform())
if len(paths) > 0:
l = list(paths[0])
pt1 = self.line.mapFromItem(view, l[0])
pt2 = self.line.mapFromItem(view, l[1])
self._endpoints = (pt1, pt2)
return self._endpoints
def updatePosition(self):
# update text position to relative view location along line
self._endpoints = (None, None)
pt1, pt2 = self.getEndpoints()
if pt1 is None:
return
pt = pt2 * self.orthoPos + pt1 * (1-self.orthoPos)
self.setPos(pt)
# update anchor to keep text visible as it nears the view box edge
vr = self.line.viewRect()
if vr is not None:
self.setAnchor(self.anchors[0 if vr.center().y() < 0 else 1])
def setVisible(self, v):
TextItem.setVisible(self, v)
if v:
self.updateText()
self.updatePosition()
def setMovable(self, m):
"""Set whether this label is movable by dragging along the line.
"""
self.movable = m
self.setAcceptHoverEvents(m)
def setPosition(self, p):
"""Set the relative position (0.0-1.0) of this label within the view box
and along the line.
For horizontal (angle=0) and vertical (angle=90) lines, a value of 0.0
places the text at the bottom or left of the view, respectively.
"""
self.orthoPos = p
self.updatePosition()
def setFormat(self, text):
"""Set the text format string for this label.
May optionally contain "{value}" to include the lines current value
(the text will be reformatted whenever the line is moved).
"""
self.format = text
self.valueChanged()
def mouseDragEvent(self, ev):
if self.movable and ev.button() == QtCore.Qt.LeftButton:
if ev.isStart():
self._moving = True
self._cursorOffset = self._posToRel(ev.buttonDownPos())
self._startPosition = self.orthoPos
ev.accept()
if not self._moving:
return
rel = self._posToRel(ev.pos())
self.orthoPos = np.clip(self._startPosition + rel - self._cursorOffset, 0, 1)
self.updatePosition()
if ev.isFinish():
self._moving = False
def mouseClickEvent(self, ev):
if self.moving and ev.button() == QtCore.Qt.RightButton:
ev.accept()
self.orthoPos = self._startPosition
self.moving = False
def hoverEvent(self, ev):
if not ev.isExit() and self.movable:
ev.acceptDrags(QtCore.Qt.LeftButton)
def viewTransformChanged(self):
self.updatePosition()
TextItem.viewTransformChanged(self)
def _posToRel(self, pos):
# convert local position to relative position along line between view bounds
pt1, pt2 = self.getEndpoints()
if pt1 is None:
return 0
view = self.getViewBox()
pos = self.mapToParent(pos)
return (pos.x() - pt1.x()) / (pt2.x()-pt1.x())

36
pyqtgraph/graphicsItems/IsocurveItem.py
View File

@ -1,5 +1,4 @@
from .. import getConfigOption
from .GraphicsObject import *
from .. import functions as fn
from ..Qt import QtGui, QtCore
@ -9,12 +8,10 @@ class IsocurveItem(GraphicsObject):
"""
**Bases:** :class:`GraphicsObject <pyqtgraph.GraphicsObject>`
Item displaying an isocurve of a 2D array.To align this item correctly with an
ImageItem,call isocurve.setParentItem(image)
Item displaying an isocurve of a 2D array. To align this item correctly with an
ImageItem, call ``isocurve.setParentItem(image)``.
"""
def __init__(self, data=None, level=0, pen='w'):
def __init__(self, data=None, level=0, pen='w', axisOrder=None):
"""
Create a new isocurve item.
@ -25,6 +22,9 @@ class IsocurveItem(GraphicsObject):
level The cutoff value at which to draw the isocurve.
pen The color of the curve item. Can be anything valid for
:func:`mkPen <pyqtgraph.mkPen>`
axisOrder May be either 'row-major' or 'col-major'. By default this uses
the ``imageAxisOrder``
:ref:`global configuration option <apiref_config>`.
============== ===============================================================
"""
GraphicsObject.__init__(self)
@ -32,10 +32,10 @@ class IsocurveItem(GraphicsObject):
self.level = level
self.data = None
self.path = None
self.axisOrder = getConfigOption('imageAxisOrder') if axisOrder is None else axisOrder
self.setPen(pen)
self.setData(data, level)
def setData(self, data, level=None):
"""
Set the data/image to draw isocurves for.
@ -55,7 +55,6 @@ class IsocurveItem(GraphicsObject):
self.prepareGeometryChange()
self.update()
def setLevel(self, level):
"""Set the level at which the isocurve is drawn."""
self.level = level
@ -63,7 +62,6 @@ class IsocurveItem(GraphicsObject):
self.prepareGeometryChange()
self.update()
def setPen(self, *args, **kwargs):
"""Set the pen used to draw the isocurve. Arguments can be any that are valid
for :func:`mkPen <pyqtgraph.mkPen>`"""
@ -76,17 +74,7 @@ class IsocurveItem(GraphicsObject):
self.brush = fn.mkBrush(*args, **kwargs)
self.update()
def updateLines(self, data, level):
##print "data:", data
##print "level", level
#lines = fn.isocurve(data, level)
##print len(lines)
#self.path = QtGui.QPainterPath()
#for line in lines:
#self.path.moveTo(*line[0])
#self.path.lineTo(*line[1])
#self.update()
self.setData(data, level)
def boundingRect(self):
@ -100,7 +88,13 @@ class IsocurveItem(GraphicsObject):
if self.data is None:
self.path = None
return
lines = fn.isocurve(self.data, self.level, connected=True, extendToEdge=True)
if self.axisOrder == 'row-major':
data = self.data.T
else:
data = self.data
lines = fn.isocurve(data, self.level, connected=True, extendToEdge=True)
self.path = QtGui.QPainterPath()
for line in lines:
self.path.moveTo(*line[0])

8
pyqtgraph/graphicsItems/PlotCurveItem.py
View File

@ -126,10 +126,18 @@ class PlotCurveItem(GraphicsObject):
## Get min/max (or percentiles) of the requested data range
if frac >= 1.0:
# include complete data range
# first try faster nanmin/max function, then cut out infs if needed.
b = (np.nanmin(d), np.nanmax(d))
if any(np.isinf(b)):
mask = np.isfinite(d)
d = d[mask]
b = (d.min(), d.max())
elif frac <= 0.0:
raise Exception("Value for parameter 'frac' must be > 0. (got %s)" % str(frac))
else:
# include a percentile of data range
mask = np.isfinite(d)
d = d[mask]
b = np.percentile(d, [50 * (1 - frac), 50 * (1 + frac)])

11
pyqtgraph/graphicsItems/PlotDataItem.py
View File

@ -1,13 +1,14 @@
import numpy as np
from .. import metaarray as metaarray
from ..Qt import QtCore
from .GraphicsObject import GraphicsObject
from .PlotCurveItem import PlotCurveItem
from .ScatterPlotItem import ScatterPlotItem
import numpy as np
from .. import functions as fn
from .. import debug as debug
from .. import getConfigOption
class PlotDataItem(GraphicsObject):
"""
**Bases:** :class:`GraphicsObject <pyqtgraph.GraphicsObject>`
@ -522,6 +523,10 @@ class PlotDataItem(GraphicsObject):
#y = y[::ds]
if self.opts['fftMode']:
x,y = self._fourierTransform(x, y)
# Ignore the first bin for fft data if we have a logx scale
if self.opts['logMode'][0]:
x=x[1:]
y=y[1:]
if self.opts['logMode'][0]:
x = np.log10(x)
if self.opts['logMode'][1]:
@ -569,11 +574,11 @@ class PlotDataItem(GraphicsObject):
x = x[::ds]
y = y[::ds]
elif self.opts['downsampleMethod'] == 'mean':
n = len(x) / ds
n = len(x) // ds
x = x[:n*ds:ds]
y = y[:n*ds].reshape(n,ds).mean(axis=1)
elif self.opts['downsampleMethod'] == 'peak':
n = len(x) / ds
n = len(x) // ds
x1 = np.empty((n,2))
x1[:] = x[:n*ds:ds,np.newaxis]
x = x1.reshape(n*2)

79
pyqtgraph/graphicsItems/PlotItem/PlotItem.py
View File

@ -16,20 +16,14 @@ This class is very heavily featured:
- Control panel with a huge feature set including averaging, decimation,
display, power spectrum, svg/png export, plot linking, and more.
"""
from ...Qt import QtGui, QtCore, QtSvg, USE_PYSIDE
from ... import pixmaps
import sys
if USE_PYSIDE:
from .plotConfigTemplate_pyside import *
else:
from .plotConfigTemplate_pyqt import *
from ... import functions as fn
from ...widgets.FileDialog import FileDialog
import weakref
import numpy as np
import os
from ...Qt import QtGui, QtCore, QT_LIB
from ... import pixmaps
from ... import functions as fn
from ...widgets.FileDialog import FileDialog
from .. PlotDataItem import PlotDataItem
from .. ViewBox import ViewBox
from .. AxisItem import AxisItem
@ -39,6 +33,14 @@ from .. GraphicsWidget import GraphicsWidget
from .. ButtonItem import ButtonItem
from .. InfiniteLine import InfiniteLine
from ...WidgetGroup import WidgetGroup
from ...python2_3 import basestring
if QT_LIB == 'PyQt4':
from .plotConfigTemplate_pyqt import *
elif QT_LIB == 'PySide':
from .plotConfigTemplate_pyside import *
elif QT_LIB == 'PyQt5':
from .plotConfigTemplate_pyqt5 import *
__all__ = ['PlotItem']
@ -168,7 +170,10 @@ class PlotItem(GraphicsWidget):
axisItems = {}
self.axes = {}
for k, pos in (('top', (1,1)), ('bottom', (3,1)), ('left', (2,0)), ('right', (2,2))):
axis = axisItems.get(k, AxisItem(orientation=k, parent=self))
if k in axisItems:
axis = axisItems[k]
else:
axis = AxisItem(orientation=k, parent=self)
axis.linkToView(self.vb)
self.axes[k] = {'item': axis, 'pos': pos}
self.layout.addItem(axis, *pos)
@ -469,12 +474,13 @@ class PlotItem(GraphicsWidget):
### Average data together
(x, y) = curve.getData()
stepMode = curve.opts['stepMode']
if plot.yData is not None and y.shape == plot.yData.shape:
# note that if shapes do not match, then the average resets.
newData = plot.yData * (n-1) / float(n) + y * 1.0 / float(n)
plot.setData(plot.xData, newData)
plot.setData(plot.xData, newData, stepMode=stepMode)
else:
plot.setData(x, y)
plot.setData(x, y, stepMode=stepMode)
def autoBtnClicked(self):
if self.autoBtn.mode == 'auto':
@ -768,14 +774,6 @@ class PlotItem(GraphicsWidget):
y = pos.y() * sy
fh.write('<circle cx="%f" cy="%f" r="1" fill="#%s" stroke="none" fill-opacity="%f"/>\n' % (x, y, color, opacity))
#fh.write('<path fill="none" stroke="#%s" stroke-opacity="%f" stroke-width="1" d="M%f,%f ' % (color, opacity, x[0], y[0]))
#for i in xrange(1, len(x)):
#fh.write('L%f,%f ' % (x[i], y[i]))
#fh.write('"/>')
## get list of curves, scatter plots
fh.write("</svg>\n")
@ -787,42 +785,9 @@ class PlotItem(GraphicsWidget):
fileName = str(fileName)
PlotItem.lastFileDir = os.path.dirname(fileName)
self.svg = QtSvg.QSvgGenerator()
self.svg.setFileName(fileName)
res = 120.
view = self.scene().views()[0]
bounds = view.viewport().rect()
bounds = QtCore.QRectF(0, 0, bounds.width(), bounds.height())
self.svg.setResolution(res)
self.svg.setViewBox(bounds)
self.svg.setSize(QtCore.QSize(bounds.width(), bounds.height()))
painter = QtGui.QPainter(self.svg)
view.render(painter, bounds)
painter.end()
## Workaround to set pen widths correctly
import re
data = open(fileName).readlines()
for i in range(len(data)):
line = data[i]
m = re.match(r'(<g .*)stroke-width="1"(.*transform="matrix\(([^\)]+)\)".*)', line)
if m is not None:
#print "Matched group:", line
g = m.groups()
matrix = list(map(float, g[2].split(',')))
#print "matrix:", matrix
scale = max(abs(matrix[0]), abs(matrix[3]))
if scale == 0 or scale == 1.0:
continue
data[i] = g[0] + ' stroke-width="%0.2g" ' % (1.0/scale) + g[1] + '\n'
#print "old line:", line
#print "new line:", data[i]
open(fileName, 'w').write(''.join(data))
from ...exporters import SVGExporter
ex = SVGExporter(self)
ex.export(fileName)
def writeImage(self, fileName=None):
if fileName is None:

169
pyqtgraph/graphicsItems/PlotItem/plotConfigTemplate_pyqt5.py Normal file
View File

@ -0,0 +1,169 @@
# -*- coding: utf-8 -*-
# Form implementation generated from reading ui file './pyqtgraph/graphicsItems/PlotItem/plotConfigTemplate.ui'
#
# Created: Wed Mar 26 15:09:28 2014
# by: PyQt5 UI code generator 5.0.1
#
# WARNING! All changes made in this file will be lost!
from PyQt5 import QtCore, QtGui, QtWidgets
class Ui_Form(object):
def setupUi(self, Form):
Form.setObjectName("Form")
Form.resize(481, 840)
self.averageGroup = QtWidgets.QGroupBox(Form)
self.averageGroup.setGeometry(QtCore.QRect(0, 640, 242, 182))
self.averageGroup.setCheckable(True)
self.averageGroup.setChecked(False)
self.averageGroup.setObjectName("averageGroup")
self.gridLayout_5 = QtWidgets.QGridLayout(self.averageGroup)
self.gridLayout_5.setContentsMargins(0, 0, 0, 0)
self.gridLayout_5.setSpacing(0)
self.gridLayout_5.setObjectName("gridLayout_5")
self.avgParamList = QtWidgets.QListWidget(self.averageGroup)
self.avgParamList.setObjectName("avgParamList")
self.gridLayout_5.addWidget(self.avgParamList, 0, 0, 1, 1)
self.decimateGroup = QtWidgets.QFrame(Form)
self.decimateGroup.setGeometry(QtCore.QRect(10, 140, 191, 171))
self.decimateGroup.setObjectName("decimateGroup")
self.gridLayout_4 = QtWidgets.QGridLayout(self.decimateGroup)
self.gridLayout_4.setContentsMargins(0, 0, 0, 0)
self.gridLayout_4.setSpacing(0)
self.gridLayout_4.setObjectName("gridLayout_4")
self.clipToViewCheck = QtWidgets.QCheckBox(self.decimateGroup)
self.clipToViewCheck.setObjectName("clipToViewCheck")
self.gridLayout_4.addWidget(self.clipToViewCheck, 7, 0, 1, 3)
self.maxTracesCheck = QtWidgets.QCheckBox(self.decimateGroup)
self.maxTracesCheck.setObjectName("maxTracesCheck")
self.gridLayout_4.addWidget(self.maxTracesCheck, 8, 0, 1, 2)
self.downsampleCheck = QtWidgets.QCheckBox(self.decimateGroup)
self.downsampleCheck.setObjectName("downsampleCheck")
self.gridLayout_4.addWidget(self.downsampleCheck, 0, 0, 1, 3)
self.peakRadio = QtWidgets.QRadioButton(self.decimateGroup)
self.peakRadio.setChecked(True)
self.peakRadio.setObjectName("peakRadio")
self.gridLayout_4.addWidget(self.peakRadio, 6, 1, 1, 2)
self.maxTracesSpin = QtWidgets.QSpinBox(self.decimateGroup)
self.maxTracesSpin.setObjectName("maxTracesSpin")
self.gridLayout_4.addWidget(self.maxTracesSpin, 8, 2, 1, 1)
self.forgetTracesCheck = QtWidgets.QCheckBox(self.decimateGroup)
self.forgetTracesCheck.setObjectName("forgetTracesCheck")
self.gridLayout_4.addWidget(self.forgetTracesCheck, 9, 0, 1, 3)
self.meanRadio = QtWidgets.QRadioButton(self.decimateGroup)
self.meanRadio.setObjectName("meanRadio")
self.gridLayout_4.addWidget(self.meanRadio, 3, 1, 1, 2)
self.subsampleRadio = QtWidgets.QRadioButton(self.decimateGroup)
self.subsampleRadio.setObjectName("subsampleRadio")
self.gridLayout_4.addWidget(self.subsampleRadio, 2, 1, 1, 2)
self.autoDownsampleCheck = QtWidgets.QCheckBox(self.decimateGroup)
self.autoDownsampleCheck.setChecked(True)
self.autoDownsampleCheck.setObjectName("autoDownsampleCheck")
self.gridLayout_4.addWidget(self.autoDownsampleCheck, 1, 2, 1, 1)
spacerItem = QtWidgets.QSpacerItem(30, 20, QtWidgets.QSizePolicy.Maximum, QtWidgets.QSizePolicy.Minimum)
self.gridLayout_4.addItem(spacerItem, 2, 0, 1, 1)
self.downsampleSpin = QtWidgets.QSpinBox(self.decimateGroup)
self.downsampleSpin.setMinimum(1)
self.downsampleSpin.setMaximum(100000)
self.downsampleSpin.setProperty("value", 1)
self.downsampleSpin.setObjectName("downsampleSpin")
self.gridLayout_4.addWidget(self.downsampleSpin, 1, 1, 1, 1)
self.transformGroup = QtWidgets.QFrame(Form)
self.transformGroup.setGeometry(QtCore.QRect(0, 0, 154, 79))
self.transformGroup.setObjectName("transformGroup")
self.gridLayout = QtWidgets.QGridLayout(self.transformGroup)
self.gridLayout.setObjectName("gridLayout")
self.fftCheck = QtWidgets.QCheckBox(self.transformGroup)
self.fftCheck.setObjectName("fftCheck")
self.gridLayout.addWidget(self.fftCheck, 0, 0, 1, 1)
self.logXCheck = QtWidgets.QCheckBox(self.transformGroup)
self.logXCheck.setObjectName("logXCheck")
self.gridLayout.addWidget(self.logXCheck, 1, 0, 1, 1)
self.logYCheck = QtWidgets.QCheckBox(self.transformGroup)
self.logYCheck.setObjectName("logYCheck")
self.gridLayout.addWidget(self.logYCheck, 2, 0, 1, 1)
self.pointsGroup = QtWidgets.QGroupBox(Form)
self.pointsGroup.setGeometry(QtCore.QRect(10, 550, 234, 58))
self.pointsGroup.setCheckable(True)
self.pointsGroup.setObjectName("pointsGroup")
self.verticalLayout_5 = QtWidgets.QVBoxLayout(self.pointsGroup)
self.verticalLayout_5.setObjectName("verticalLayout_5")
self.autoPointsCheck = QtWidgets.QCheckBox(self.pointsGroup)
self.autoPointsCheck.setChecked(True)
self.autoPointsCheck.setObjectName("autoPointsCheck")
self.verticalLayout_5.addWidget(self.autoPointsCheck)
self.gridGroup = QtWidgets.QFrame(Form)
self.gridGroup.setGeometry(QtCore.QRect(10, 460, 221, 81))
self.gridGroup.setObjectName("gridGroup")
self.gridLayout_2 = QtWidgets.QGridLayout(self.gridGroup)
self.gridLayout_2.setObjectName("gridLayout_2")
self.xGridCheck = QtWidgets.QCheckBox(self.gridGroup)
self.xGridCheck.setObjectName("xGridCheck")
self.gridLayout_2.addWidget(self.xGridCheck, 0, 0, 1, 2)
self.yGridCheck = QtWidgets.QCheckBox(self.gridGroup)
self.yGridCheck.setObjectName("yGridCheck")
self.gridLayout_2.addWidget(self.yGridCheck, 1, 0, 1, 2)
self.gridAlphaSlider = QtWidgets.QSlider(self.gridGroup)
self.gridAlphaSlider.setMaximum(255)
self.gridAlphaSlider.setProperty("value", 128)
self.gridAlphaSlider.setOrientation(QtCore.Qt.Horizontal)
self.gridAlphaSlider.setObjectName("gridAlphaSlider")
self.gridLayout_2.addWidget(self.gridAlphaSlider, 2, 1, 1, 1)
self.label = QtWidgets.QLabel(self.gridGroup)
self.label.setObjectName("label")
self.gridLayout_2.addWidget(self.label, 2, 0, 1, 1)
self.alphaGroup = QtWidgets.QGroupBox(Form)
self.alphaGroup.setGeometry(QtCore.QRect(10, 390, 234, 60))
self.alphaGroup.setCheckable(True)
self.alphaGroup.setObjectName("alphaGroup")
self.horizontalLayout = QtWidgets.QHBoxLayout(self.alphaGroup)
self.horizontalLayout.setObjectName("horizontalLayout")
self.autoAlphaCheck = QtWidgets.QCheckBox(self.alphaGroup)
self.autoAlphaCheck.setChecked(False)
self.autoAlphaCheck.setObjectName("autoAlphaCheck")
self.horizontalLayout.addWidget(self.autoAlphaCheck)
self.alphaSlider = QtWidgets.QSlider(self.alphaGroup)
self.alphaSlider.setMaximum(1000)
self.alphaSlider.setProperty("value", 1000)
self.alphaSlider.setOrientation(QtCore.Qt.Horizontal)
self.alphaSlider.setObjectName("alphaSlider")
self.horizontalLayout.addWidget(self.alphaSlider)
self.retranslateUi(Form)
QtCore.QMetaObject.connectSlotsByName(Form)
def retranslateUi(self, Form):
_translate = QtCore.QCoreApplication.translate
Form.setWindowTitle(_translate("Form", "Form"))
self.averageGroup.setToolTip(_translate("Form", "Display averages of the curves displayed in this plot. The parameter list allows you to choose parameters to average over (if any are available)."))
self.averageGroup.setTitle(_translate("Form", "Average"))
self.clipToViewCheck.setToolTip(_translate("Form", "Plot only the portion of each curve that is visible. This assumes X values are uniformly spaced."))
self.clipToViewCheck.setText(_translate("Form", "Clip to View"))
self.maxTracesCheck.setToolTip(_translate("Form", "If multiple curves are displayed in this plot, check this box to limit the number of traces that are displayed."))
self.maxTracesCheck.setText(_translate("Form", "Max Traces:"))
self.downsampleCheck.setText(_translate("Form", "Downsample"))
self.peakRadio.setToolTip(_translate("Form", "Downsample by drawing a saw wave that follows the min and max of the original data. This method produces the best visual representation of the data but is slower."))
self.peakRadio.setText(_translate("Form", "Peak"))
self.maxTracesSpin.setToolTip(_translate("Form", "If multiple curves are displayed in this plot, check \"Max Traces\" and set this value to limit the number of traces that are displayed."))
self.forgetTracesCheck.setToolTip(_translate("Form", "If MaxTraces is checked, remove curves from memory after they are hidden (saves memory, but traces can not be un-hidden)."))
self.forgetTracesCheck.setText(_translate("Form", "Forget hidden traces"))
self.meanRadio.setToolTip(_translate("Form", "Downsample by taking the mean of N samples."))
self.meanRadio.setText(_translate("Form", "Mean"))
self.subsampleRadio.setToolTip(_translate("Form", "Downsample by taking the first of N samples. This method is fastest and least accurate."))
self.subsampleRadio.setText(_translate("Form", "Subsample"))
self.autoDownsampleCheck.setToolTip(_translate("Form", "Automatically downsample data based on the visible range. This assumes X values are uniformly spaced."))
self.autoDownsampleCheck.setText(_translate("Form", "Auto"))
self.downsampleSpin.setToolTip(_translate("Form", "Downsample data before plotting. (plot every Nth sample)"))
self.downsampleSpin.setSuffix(_translate("Form", "x"))
self.fftCheck.setText(_translate("Form", "Power Spectrum (FFT)"))
self.logXCheck.setText(_translate("Form", "Log X"))
self.logYCheck.setText(_translate("Form", "Log Y"))
self.pointsGroup.setTitle(_translate("Form", "Points"))
self.autoPointsCheck.setText(_translate("Form", "Auto"))
self.xGridCheck.setText(_translate("Form", "Show X Grid"))
self.yGridCheck.setText(_translate("Form", "Show Y Grid"))
self.label.setText(_translate("Form", "Opacity"))
self.alphaGroup.setTitle(_translate("Form", "Alpha"))
self.autoAlphaCheck.setText(_translate("Form", "Auto"))

303
pyqtgraph/graphicsItems/ROI.py
View File

@ -21,6 +21,7 @@ from math import cos, sin
from .. import functions as fn
from .GraphicsObject import GraphicsObject
from .UIGraphicsItem import UIGraphicsItem
from .. import getConfigOption
__all__ = [
'ROI',
@ -213,20 +214,30 @@ class ROI(GraphicsObject):
"""Return the angle of the ROI in degrees."""
return self.getState()['angle']
def setPos(self, pos, update=True, finish=True):
def setPos(self, pos, y=None, update=True, finish=True):
"""Set the position of the ROI (in the parent's coordinate system).
By default, this will cause both sigRegionChanged and sigRegionChangeFinished to be emitted.
If finish is False, then sigRegionChangeFinished will not be emitted. You can then use
stateChangeFinished() to cause the signal to be emitted after a series of state changes.
Accepts either separate (x, y) arguments or a single :class:`Point` or
``QPointF`` argument.
If update is False, the state change will be remembered but not processed and no signals
By default, this method causes both ``sigRegionChanged`` and
``sigRegionChangeFinished`` to be emitted. If *finish* is False, then
``sigRegionChangeFinished`` will not be emitted. You can then use
stateChangeFinished() to cause the signal to be emitted after a series
of state changes.
If *update* is False, the state change will be remembered but not processed and no signals
will be emitted. You can then use stateChanged() to complete the state change. This allows
multiple change functions to be called sequentially while minimizing processing overhead
and repeated signals. Setting update=False also forces finish=False.
and repeated signals. Setting ``update=False`` also forces ``finish=False``.
"""
pos = Point(pos)
if y is None:
pos = Point(pos)
else:
# avoid ambiguity where update is provided as a positional argument
if isinstance(y, bool):
raise TypeError("Positional arguments to setPos() must be numerical.")
pos = Point(pos, y)
self.state['pos'] = pos
QtGui.QGraphicsItem.setPos(self, pos)
if update:
@ -526,7 +537,7 @@ class ROI(GraphicsObject):
if isinstance(handle, Handle):
index = [i for i, info in enumerate(self.handles) if info['item'] is handle]
if len(index) == 0:
raise Exception("Cannot remove handle; it is not attached to this ROI")
raise Exception("Cannot return handle index; not attached to this ROI")
return index[0]
else:
return handle
@ -636,11 +647,20 @@ class ROI(GraphicsObject):
if self.mouseHovering == hover:
return
self.mouseHovering = hover
if hover:
self.currentPen = fn.mkPen(255, 255, 0)
self._updateHoverColor()
def _updateHoverColor(self):
pen = self._makePen()
if self.currentPen != pen:
self.currentPen = pen
self.update()
def _makePen(self):
# Generate the pen color for this ROI based on its current state.
if self.mouseHovering:
return fn.mkPen(255, 255, 0)
else:
self.currentPen = self.pen
self.update()
return self.pen
def contextMenuEnabled(self):
return self.removable
@ -919,8 +939,9 @@ class ROI(GraphicsObject):
if self.lastState is None:
changed = True
else:
for k in list(self.state.keys()):
if self.state[k] != self.lastState[k]:
state = self.getState()
for k in list(state.keys()):
if state[k] != self.lastState[k]:
changed = True
self.prepareGeometryChange()
@ -940,10 +961,11 @@ class ROI(GraphicsObject):
self.sigRegionChanged.emit(self)
self.freeHandleMoved = False
self.lastState = self.stateCopy()
self.lastState = self.getState()
if finish:
self.stateChangeFinished()
self.informViewBoundsChanged()
def stateChangeFinished(self):
self.sigRegionChangeFinished.emit(self)
@ -988,20 +1010,18 @@ class ROI(GraphicsObject):
# p.restore()
def getArraySlice(self, data, img, axes=(0,1), returnSlice=True):
"""Return a tuple of slice objects that can be used to slice the region from data covered by this ROI.
Also returns the transform which maps the ROI into data coordinates.
"""Return a tuple of slice objects that can be used to slice the region
from *data* that is covered by the bounding rectangle of this ROI.
Also returns the transform that maps the ROI into data coordinates.
If returnSlice is set to False, the function returns a pair of tuples with the values that would have
been used to generate the slice objects. ((ax0Start, ax0Stop), (ax1Start, ax1Stop))
If the slice can not be computed (usually because the scene/transforms are not properly
If the slice cannot be computed (usually because the scene/transforms are not properly
constructed yet), then the method returns None.
"""
#print "getArraySlice"
## Determine shape of array along ROI axes
dShape = (data.shape[axes[0]], data.shape[axes[1]])
#print " dshape", dShape
## Determine transform that maps ROI bounding box to image coordinates
try:
@ -1010,25 +1030,28 @@ class ROI(GraphicsObject):
return None
## Modify transform to scale from image coords to data coords
#m = QtGui.QTransform()
tr.scale(float(dShape[0]) / img.width(), float(dShape[1]) / img.height())
#tr = tr * m
axisOrder = img.axisOrder
if axisOrder == 'row-major':
tr.scale(float(dShape[1]) / img.width(), float(dShape[0]) / img.height())
else:
tr.scale(float(dShape[0]) / img.width(), float(dShape[1]) / img.height())
## Transform ROI bounds into data bounds
dataBounds = tr.mapRect(self.boundingRect())
#print " boundingRect:", self.boundingRect()
#print " dataBounds:", dataBounds
## Intersect transformed ROI bounds with data bounds
intBounds = dataBounds.intersect(QtCore.QRectF(0, 0, dShape[0], dShape[1]))
#print " intBounds:", intBounds
if axisOrder == 'row-major':
intBounds = dataBounds.intersected(QtCore.QRectF(0, 0, dShape[1], dShape[0]))
else:
intBounds = dataBounds.intersected(QtCore.QRectF(0, 0, dShape[0], dShape[1]))
## Determine index values to use when referencing the array.
bounds = (
(int(min(intBounds.left(), intBounds.right())), int(1+max(intBounds.left(), intBounds.right()))),
(int(min(intBounds.bottom(), intBounds.top())), int(1+max(intBounds.bottom(), intBounds.top())))
)
#print " bounds:", bounds
if axisOrder == 'row-major':
bounds = bounds[::-1]
if returnSlice:
## Create slice objects
@ -1052,7 +1075,10 @@ class ROI(GraphicsObject):
Used to determine the relationship between the
ROI and the boundaries of *data*.
axes (length-2 tuple) Specifies the axes in *data* that
correspond to the x and y axes of *img*.
correspond to the (x, y) axes of *img*. If the
image's axis order is set to
'row-major', then the axes are instead specified in
(y, x) order.
returnMappedCoords (bool) If True, the array slice is returned along
with a corresponding array of coordinates that were
used to extract data from the original array.
@ -1061,8 +1087,8 @@ class ROI(GraphicsObject):
=================== ====================================================
This method uses :func:`affineSlice <pyqtgraph.affineSlice>` to generate
the slice from *data* and uses :func:`getAffineSliceParams <pyqtgraph.ROI.getAffineSliceParams>` to determine the parameters to
pass to :func:`affineSlice <pyqtgraph.affineSlice>`.
the slice from *data* and uses :func:`getAffineSliceParams <pyqtgraph.ROI.getAffineSliceParams>`
to determine the parameters to pass to :func:`affineSlice <pyqtgraph.affineSlice>`.
If *returnMappedCoords* is True, then the method returns a tuple (result, coords)
such that coords is the set of coordinates used to interpolate values from the original
@ -1072,60 +1098,92 @@ class ROI(GraphicsObject):
All extra keyword arguments are passed to :func:`affineSlice <pyqtgraph.affineSlice>`.
"""
# this is a hidden argument for internal use
fromBR = kwds.pop('fromBoundingRect', False)
shape, vectors, origin = self.getAffineSliceParams(data, img, axes)
shape, vectors, origin = self.getAffineSliceParams(data, img, axes, fromBoundingRect=fromBR)
if not returnMappedCoords:
return fn.affineSlice(data, shape=shape, vectors=vectors, origin=origin, axes=axes, **kwds)
rgn = fn.affineSlice(data, shape=shape, vectors=vectors, origin=origin, axes=axes, **kwds)
return rgn
else:
kwds['returnCoords'] = True
result, coords = fn.affineSlice(data, shape=shape, vectors=vectors, origin=origin, axes=axes, **kwds)
#tr = fn.transformToArray(img.transform())[:2] ## remove perspective transform values
### separate translation from scale/rotate
#translate = tr[:,2]
#tr = tr[:,:2]
#tr = tr.reshape((2,2) + (1,)*(coords.ndim-1))
#coords = coords[np.newaxis, ...]
### map coordinates and return
#mapped = (tr*coords).sum(axis=0) ## apply scale/rotate
#mapped += translate.reshape((2,1,1))
mapped = fn.transformCoordinates(img.transform(), coords)
return result, mapped
def getAffineSliceParams(self, data, img, axes=(0,1)):
def getAffineSliceParams(self, data, img, axes=(0,1), fromBoundingRect=False):
"""
Returns the parameters needed to use :func:`affineSlice <pyqtgraph.affineSlice>` to
extract a subset of *data* using this ROI and *img* to specify the subset.
Returns the parameters needed to use :func:`affineSlice <pyqtgraph.affineSlice>`
(shape, vectors, origin) to extract a subset of *data* using this ROI
and *img* to specify the subset.
If *fromBoundingRect* is True, then the ROI's bounding rectangle is used
rather than the shape of the ROI.
See :func:`getArrayRegion <pyqtgraph.ROI.getArrayRegion>` for more information.
"""
if self.scene() is not img.scene():
raise Exception("ROI and target item must be members of the same scene.")
shape = self.state['size']
origin = self.mapToItem(img, QtCore.QPointF(0, 0))
origin = img.mapToData(self.mapToItem(img, QtCore.QPointF(0, 0)))
## vx and vy point in the directions of the slice axes, but must be scaled properly
vx = self.mapToItem(img, QtCore.QPointF(1, 0)) - origin
vy = self.mapToItem(img, QtCore.QPointF(0, 1)) - origin
vx = img.mapToData(self.mapToItem(img, QtCore.QPointF(1, 0))) - origin
vy = img.mapToData(self.mapToItem(img, QtCore.QPointF(0, 1))) - origin
lvx = np.sqrt(vx.x()**2 + vx.y()**2)
lvy = np.sqrt(vy.x()**2 + vy.y()**2)
pxLen = img.width() / float(data.shape[axes[0]])
#img.width is number of pixels or width of item?
#need pxWidth and pxHeight instead of pxLen ?
sx = pxLen / lvx
sy = pxLen / lvy
#pxLen = img.width() / float(data.shape[axes[0]])
##img.width is number of pixels, not width of item.
##need pxWidth and pxHeight instead of pxLen ?
#sx = pxLen / lvx
#sy = pxLen / lvy
sx = 1.0 / lvx
sy = 1.0 / lvy
vectors = ((vx.x()*sx, vx.y()*sx), (vy.x()*sy, vy.y()*sy))
shape = self.state['size']
if fromBoundingRect is True:
shape = self.boundingRect().width(), self.boundingRect().height()
origin = img.mapToData(self.mapToItem(img, self.boundingRect().topLeft()))
origin = (origin.x(), origin.y())
else:
shape = self.state['size']
origin = (origin.x(), origin.y())
shape = [abs(shape[0]/sx), abs(shape[1]/sy)]
origin = (origin.x(), origin.y())
if img.axisOrder == 'row-major':
# transpose output
vectors = vectors[::-1]
shape = shape[::-1]
return shape, vectors, origin
def renderShapeMask(self, width, height):
"""Return an array of 0.0-1.0 into which the shape of the item has been drawn.
This can be used to mask array selections.
"""
if width == 0 or height == 0:
return np.empty((width, height), dtype=float)
# QImage(width, height, format)
im = QtGui.QImage(width, height, QtGui.QImage.Format_ARGB32)
im.fill(0x0)
p = QtGui.QPainter(im)
p.setPen(fn.mkPen(None))
p.setBrush(fn.mkBrush('w'))
shape = self.shape()
bounds = shape.boundingRect()
p.scale(im.width() / bounds.width(), im.height() / bounds.height())
p.translate(-bounds.topLeft())
p.drawPath(shape)
p.end()
mask = fn.imageToArray(im, transpose=True)[:,:,0].astype(float) / 255.
return mask
def getGlobalTransform(self, relativeTo=None):
"""Return global transformation (rotation angle+translation) required to move
from relative state to current state. If relative state isn't specified,
@ -1138,8 +1196,6 @@ class ROI(GraphicsObject):
relativeTo['scale'] = relativeTo['size']
st['scale'] = st['size']
t1 = SRTTransform(relativeTo)
t2 = SRTTransform(st)
return t2/t1
@ -1586,10 +1642,10 @@ class MultiRectROI(QtGui.QGraphicsObject):
pos.append(self.mapFromScene(l.getHandles()[1].scenePos()))
return pos
def getArrayRegion(self, arr, img=None, axes=(0,1)):
def getArrayRegion(self, arr, img=None, axes=(0,1), **kwds):
rgns = []
for l in self.lines:
rgn = l.getArrayRegion(arr, img, axes=axes)
rgn = l.getArrayRegion(arr, img, axes=axes, **kwds)
if rgn is None:
continue
#return None
@ -1598,6 +1654,8 @@ class MultiRectROI(QtGui.QGraphicsObject):
## make sure orthogonal axis is the same size
## (sometimes fp errors cause differences)
if img.axisOrder == 'row-major':
axes = axes[::-1]
ms = min([r.shape[axes[1]] for r in rgns])
sl = [slice(None)] * rgns[0].ndim
sl[axes[1]] = slice(0,ms)
@ -1660,6 +1718,7 @@ class MultiLineROI(MultiRectROI):
MultiRectROI.__init__(self, *args, **kwds)
print("Warning: MultiLineROI has been renamed to MultiRectROI. (and MultiLineROI may be redefined in the future)")
class EllipseROI(ROI):
"""
Elliptical ROI subclass with one scale handle and one rotation handle.
@ -1689,19 +1748,27 @@ class EllipseROI(ROI):
p.drawEllipse(r)
def getArrayRegion(self, arr, img=None):
def getArrayRegion(self, arr, img=None, axes=(0, 1), **kwds):
"""
Return the result of ROI.getArrayRegion() masked by the elliptical shape
of the ROI. Regions outside the ellipse are set to 0.
"""
arr = ROI.getArrayRegion(self, arr, img)
if arr is None or arr.shape[0] == 0 or arr.shape[1] == 0:
return None
w = arr.shape[0]
h = arr.shape[1]
# Note: we could use the same method as used by PolyLineROI, but this
# implementation produces a nicer mask.
arr = ROI.getArrayRegion(self, arr, img, axes, **kwds)
if arr is None or arr.shape[axes[0]] == 0 or arr.shape[axes[1]] == 0:
return arr
w = arr.shape[axes[0]]
h = arr.shape[axes[1]]
## generate an ellipsoidal mask
mask = np.fromfunction(lambda x,y: (((x+0.5)/(w/2.)-1)**2+ ((y+0.5)/(h/2.)-1)**2)**0.5 < 1, (w, h))
# reshape to match array axes
if axes[0] > axes[1]:
mask = mask.T
shape = [(n if i in axes else 1) for i,n in enumerate(arr.shape)]
mask = mask.reshape(shape)
return arr * mask
def shape(self):
@ -1782,6 +1849,7 @@ class PolygonROI(ROI):
#sc['handles'] = self.handles
return sc
class PolyLineROI(ROI):
"""
Container class for multiple connected LineSegmentROIs.
@ -1811,12 +1879,6 @@ class PolyLineROI(ROI):
ROI.__init__(self, pos, size=[1,1], **args)
self.setPoints(positions)
#for p in positions:
#self.addFreeHandle(p)
#start = -1 if self.closed else 0
#for i in range(start, len(self.handles)-1):
#self.addSegment(self.handles[i]['item'], self.handles[i+1]['item'])
def setPoints(self, points, closed=None):
"""
@ -1834,6 +1896,8 @@ class PolyLineROI(ROI):
if closed is not None:
self.closed = closed
self.clearPoints()
for p in points:
self.addFreeHandle(p)
@ -1841,7 +1905,6 @@ class PolyLineROI(ROI):
for i in range(start, len(self.handles)-1):
self.addSegment(self.handles[i]['item'], self.handles[i+1]['item'])
def clearPoints(self):
"""
Remove all handles and segments.
@ -1849,6 +1912,12 @@ class PolyLineROI(ROI):
while len(self.handles) > 0:
self.removeHandle(self.handles[0]['item'])
def getState(self):
state = ROI.getState(self)
state['closed'] = self.closed
state['points'] = [Point(h.pos()) for h in self.getHandles()]
return state
def saveState(self):
state = ROI.saveState(self)
state['closed'] = self.closed
@ -1857,11 +1926,10 @@ class PolyLineROI(ROI):
def setState(self, state):
ROI.setState(self, state)
self.clearPoints()
self.setPoints(state['points'], closed=state['closed'])
def addSegment(self, h1, h2, index=None):
seg = LineSegmentROI(handles=(h1, h2), pen=self.pen, parent=self, movable=False)
seg = _PolyLineSegment(handles=(h1, h2), pen=self.pen, parent=self, movable=False)
if index is None:
self.segments.append(seg)
else:
@ -1877,11 +1945,12 @@ class PolyLineROI(ROI):
## Inform all the ROI's segments that the mouse is(not) hovering over it
ROI.setMouseHover(self, hover)
for s in self.segments:
s.setMouseHover(hover)
s.setParentHover(hover)
def addHandle(self, info, index=None):
h = ROI.addHandle(self, info, index=index)
h.sigRemoveRequested.connect(self.removeHandle)
self.stateChanged(finish=True)
return h
def segmentClicked(self, segment, ev=None, pos=None): ## pos should be in this item's coordinate system
@ -1909,11 +1978,12 @@ class PolyLineROI(ROI):
if len(segments) == 1:
self.removeSegment(segments[0])
else:
elif len(segments) > 1:
handles = [h['item'] for h in segments[1].handles]
handles.remove(handle)
segments[0].replaceHandle(handle, handles[0])
self.removeSegment(segments[1])
self.stateChanged(finish=True)
def removeSegment(self, seg):
for handle in seg.handles[:]:
@ -1930,20 +2000,10 @@ class PolyLineROI(ROI):
return len(self.handles) > 2
def paint(self, p, *args):
#for s in self.segments:
#s.update()
#p.setPen(self.currentPen)
#p.setPen(fn.mkPen('w'))
#p.drawRect(self.boundingRect())
#p.drawPath(self.shape())
pass
def boundingRect(self):
return self.shape().boundingRect()
#r = QtCore.QRectF()
#for h in self.handles:
#r |= self.mapFromItem(h['item'], h['item'].boundingRect()).boundingRect() ## |= gives the union of the two QRectFs
#return r
def shape(self):
p = QtGui.QPainterPath()
@ -1955,30 +2015,29 @@ class PolyLineROI(ROI):
p.lineTo(self.handles[0]['item'].pos())
return p
def getArrayRegion(self, data, img, axes=(0,1), returnMappedCoords=False, **kwds):
def getArrayRegion(self, data, img, axes=(0,1), **kwds):
"""
Return the result of ROI.getArrayRegion(), masked by the shape of the
ROI. Values outside the ROI shape are set to 0.
"""
sl = self.getArraySlice(data, img, axes=(0,1))
if sl is None:
return None
sliced = data[sl[0]]
im = QtGui.QImage(sliced.shape[axes[0]], sliced.shape[axes[1]], QtGui.QImage.Format_ARGB32)
im.fill(0x0)
p = QtGui.QPainter(im)
p.setPen(fn.mkPen(None))
p.setBrush(fn.mkBrush('w'))
p.setTransform(self.itemTransform(img)[0])
bounds = self.mapRectToItem(img, self.boundingRect())
p.translate(-bounds.left(), -bounds.top())
p.drawPath(self.shape())
p.end()
mask = fn.imageToArray(im)[:,:,0].astype(float) / 255.
br = self.boundingRect()
if br.width() > 1000:
raise Exception()
sliced = ROI.getArrayRegion(self, data, img, axes=axes, fromBoundingRect=True, **kwds)
if img.axisOrder == 'col-major':
mask = self.renderShapeMask(sliced.shape[axes[0]], sliced.shape[axes[1]])
else:
mask = self.renderShapeMask(sliced.shape[axes[1]], sliced.shape[axes[0]])
mask = mask.T
# reshape mask to ensure it is applied to the correct data axes
shape = [1] * data.ndim
shape[axes[0]] = sliced.shape[axes[0]]
shape[axes[1]] = sliced.shape[axes[1]]
return sliced * mask.reshape(shape)
mask = mask.reshape(shape)
return sliced * mask
def setPen(self, *args, **kwds):
ROI.setPen(self, *args, **kwds)
@ -2050,7 +2109,7 @@ class LineSegmentROI(ROI):
return p
def getArrayRegion(self, data, img, axes=(0,1)):
def getArrayRegion(self, data, img, axes=(0,1), order=1, **kwds):
"""
Use the position of this ROI relative to an imageItem to pull a slice
from an array.
@ -2066,12 +2125,38 @@ class LineSegmentROI(ROI):
for i in range(len(imgPts)-1):
d = Point(imgPts[i+1] - imgPts[i])
o = Point(imgPts[i])
r = fn.affineSlice(data, shape=(int(d.length()),), vectors=[Point(d.norm())], origin=o, axes=axes, order=1)
r = fn.affineSlice(data, shape=(int(d.length()),), vectors=[Point(d.norm())], origin=o, axes=axes, order=order, **kwds)
rgns.append(r)
return np.concatenate(rgns, axis=axes[0])
class _PolyLineSegment(LineSegmentROI):
# Used internally by PolyLineROI
def __init__(self, *args, **kwds):
self._parentHovering = False
LineSegmentROI.__init__(self, *args, **kwds)
def setParentHover(self, hover):
# set independently of own hover state
if self._parentHovering != hover:
self._parentHovering = hover
self._updateHoverColor()
def _makePen(self):
if self.mouseHovering or self._parentHovering:
return fn.mkPen(255, 255, 0)
else:
return self.pen
def hoverEvent(self, ev):
# accept drags even though we discard them to prevent competition with parent ROI
# (unless parent ROI is not movable)
if self.parentItem().translatable:
ev.acceptDrags(QtCore.Qt.LeftButton)
return LineSegmentROI.hoverEvent(self, ev)
class SpiralROI(ROI):
def __init__(self, pos=None, size=None, **args):
if size == None:

36
pyqtgraph/graphicsItems/ScatterPlotItem.py
View File

@ -1,8 +1,3 @@
from ..Qt import QtGui, QtCore, USE_PYSIDE
from ..Point import Point
from .. import functions as fn
from .GraphicsItem import GraphicsItem
from .GraphicsObject import GraphicsObject
from itertools import starmap, repeat
try:
from itertools import imap
@ -10,26 +5,42 @@ except ImportError:
imap = map
import numpy as np
import weakref
from ..Qt import QtGui, QtCore, USE_PYSIDE, USE_PYQT5
from ..Point import Point
from .. import functions as fn
from .GraphicsItem import GraphicsItem
from .GraphicsObject import GraphicsObject
from .. import getConfigOption
from .. import debug as debug
from ..pgcollections import OrderedDict
from .. import debug
from ..python2_3 import basestring
__all__ = ['ScatterPlotItem', 'SpotItem']
## Build all symbol paths
Symbols = OrderedDict([(name, QtGui.QPainterPath()) for name in ['o', 's', 't', 'd', '+', 'x']])
Symbols = OrderedDict([(name, QtGui.QPainterPath()) for name in ['o', 's', 't', 't1', 't2', 't3','d', '+', 'x', 'p', 'h', 'star']])
Symbols['o'].addEllipse(QtCore.QRectF(-0.5, -0.5, 1, 1))
Symbols['s'].addRect(QtCore.QRectF(-0.5, -0.5, 1, 1))
coords = {
't': [(-0.5, -0.5), (0, 0.5), (0.5, -0.5)],
't1': [(-0.5, 0.5), (0, -0.5), (0.5, 0.5)],
't2': [(-0.5, -0.5), (-0.5, 0.5), (0.5, 0)],
't3': [(0.5, 0.5), (0.5, -0.5), (-0.5, 0)],
'd': [(0., -0.5), (-0.4, 0.), (0, 0.5), (0.4, 0)],
'+': [
(-0.5, -0.05), (-0.5, 0.05), (-0.05, 0.05), (-0.05, 0.5),
(0.05, 0.5), (0.05, 0.05), (0.5, 0.05), (0.5, -0.05),
(0.05, -0.05), (0.05, -0.5), (-0.05, -0.5), (-0.05, -0.05)
],
'p': [(0, -0.5), (-0.4755, -0.1545), (-0.2939, 0.4045),
(0.2939, 0.4045), (0.4755, -0.1545)],
'h': [(0.433, 0.25), (0., 0.5), (-0.433, 0.25), (-0.433, -0.25),
(0, -0.5), (0.433, -0.25)],
'star': [(0, -0.5), (-0.1123, -0.1545), (-0.4755, -0.1545),
(-0.1816, 0.059), (-0.2939, 0.4045), (0, 0.1910),
(0.2939, 0.4045), (0.1816, 0.059), (0.4755, -0.1545),
(0.1123, -0.1545)]
}
for k, c in coords.items():
Symbols[k].moveTo(*c[0])
@ -145,7 +156,7 @@ class SymbolAtlas(object):
arr = fn.imageToArray(img, copy=False, transpose=False)
else:
(y,x,h,w) = sourceRect.getRect()
arr = self.atlasData[x:x+w, y:y+w]
arr = self.atlasData[int(x):int(x+w), int(y):int(y+w)]
rendered[key] = arr
w = arr.shape[0]
avgWidth += w
@ -180,10 +191,10 @@ class SymbolAtlas(object):
self.atlasRows[-1][2] = x
height = y + rowheight
self.atlasData = np.zeros((width, height, 4), dtype=np.ubyte)
self.atlasData = np.zeros((int(width), int(height), 4), dtype=np.ubyte)
for key in symbols:
y, x, h, w = self.symbolMap[key].getRect()
self.atlasData[x:x+w, y:y+h] = rendered[key]
self.atlasData[int(x):int(x+w), int(y):int(y+h)] = rendered[key]
self.atlas = None
self.atlasValid = True
self.max_width = maxWidth
@ -455,8 +466,6 @@ class ScatterPlotItem(GraphicsObject):
brushes = brushes[kargs['mask']]
if len(brushes) != len(dataSet):
raise Exception("Number of brushes does not match number of points (%d != %d)" % (len(brushes), len(dataSet)))
#for i in xrange(len(brushes)):
#self.data[i]['brush'] = fn.mkBrush(brushes[i], **kargs)
dataSet['brush'] = brushes
else:
self.opts['brush'] = fn.mkBrush(*args, **kargs)
@ -758,7 +767,7 @@ class ScatterPlotItem(GraphicsObject):
self.data['targetRect'][updateMask] = list(imap(QtCore.QRectF, updatePts[0,:], updatePts[1,:], width, width))
data = self.data[viewMask]
if USE_PYSIDE:
if USE_PYSIDE or USE_PYQT5:
list(imap(p.drawPixmap, data['targetRect'], repeat(atlas), data['sourceRect']))
else:
p.drawPixmapFragments(data['targetRect'].tolist(), data['sourceRect'].tolist(), atlas)
@ -815,7 +824,6 @@ class ScatterPlotItem(GraphicsObject):
#else:
#print "No hit:", (x, y), (sx, sy)
#print " ", (sx-s2x, sy-s2y), (sx+s2x, sy+s2y)
#pts.sort(lambda a,b: cmp(b.zValue(), a.zValue()))
return pts[::-1]

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