23a46b5fb9
* Add "lstep" and "rstep" step Modes stepMode is currently either True or False. If it is True, it requires the user to make len(x) = len(y)+1. This is inconvenient because it makes it difficult to change the stepMode on a given curve (just as one would change, e.g., its color). This commit extends the current situation by introducing two more step modes: "lstep" and "rstep", which do not require passing an extra x value. In turn, this modes associate each y value to either the left or the right boundary of the step. For example, the "rstep" mode is handy when plotting "life" digital signals in which x,y data pairs are appended as they are read. This commit does not modify the behaviour in case of stepMode=True * Replace step mode names: lstep,rstep -> left,right * Improve docs for stepMode Reword docstring and add it to PlotDataItem class too * Document left and right stepModes as added in v 0.12.0 TODO: confirm the exact version number to use here * Add comments stress the need for "is True" Some conditional statements in the code regarding stepMode are done with "is True". This is actually required since other possible values such as "left" also evaluate as true but should not be caught. * Deprecate boolean API for stepMode Introduce stepMode="mid" as a replacement of stepMode=True, but keeping full backwards compatibility with the old API. Adapt docs, examples and tests accordingly. * Raise ValueError on unsupported stepMode values * Rename "mid" step mode to "center" * Remove "added in 0.12.0" note See https://github.com/pyqtgraph/pyqtgraph/pull/1360#discussion_r502746919 * Add deprecation warning when stepMode=True Issue a DeprecationWarning if stepMode=True is being passed to the constructor or setData() of PlotDataItem or PlotCurveItem. Note: warnings module is imported locally so that it is esier to remove once this check is no longer needed. * Fix wrong syntax in last commit Fix usage of "default" kwarg in dict.get() |
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| doc | ||
| examples | ||
| pyqtgraph | ||
| tools | ||
| .coveragerc | ||
| .flake8 | ||
| .gitignore | ||
| .pre-commit-config.yaml | ||
| .readthedocs.yml | ||
| azure-pipelines.yml | ||
| azure-test-template.yml | ||
| CHANGELOG | ||
| CONTRIBUTING.md | ||
| LICENSE.txt | ||
| MANIFEST.in | ||
| pytest.ini | ||
| README.md | ||
| setup.py | ||
| test.py | ||
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PyQtGraph
A pure-Python graphics library for PyQt/PySide/PyQt5/PySide2
Copyright 2020 Luke Campagnola, University of North Carolina at Chapel Hill
PyQtGraph is intended for use in mathematics / scientific / engineering applications. Despite being written entirely in python, the library is fast due to its heavy leverage of numpy for number crunching, Qt's GraphicsView framework for 2D display, and OpenGL for 3D display.
Requirements
- Python 2.7, or 3.x
- Required
- PyQt 4.8+, PySide, PyQt5, or PySide2
numpy
- Optional
scipyfor image processingpyopenglfor 3D graphicshdf5for large hdf5 binary format support
Qt Bindings Test Matrix
The following table represents the python environments we test in our CI system. Our CI system uses Ubuntu 18.04, Windows Server 2019, and macOS 10.15 base images.
| Qt-Bindings | Python 2.7 | Python 3.6 | Python 3.7 | Python 3.8 |
|---|---|---|---|---|
| PyQt-4 | ✅ | ❌ | ❌ | ❌ |
| PySide1 | ✅ | ❌ | ❌ | ❌ |
| PyQt5-5.9 | ❌ | ✅ | ❌ | ❌ |
| PySide2-5.13 | ❌ | ❌ | ✅ | ❌ |
| PyQt5-Latest | ❌ | ❌ | ❌ | ✅ |
| PySide2-Latest | ❌ | ❌ | ❌ | ✅ |
- pyqtgraph has had some incompatibilities with PySide2 versions 5.6-5.11, and we recommend you avoid those versions if possible
- on macOS with Python 2.7 and Qt4 bindings (PyQt4 or PySide) the openGL related visualizations do not work reliably
Support
- Report issues on the GitHub issue tracker
- Post questions to the mailing list / forum or StackOverflow
Installation Methods
- From PyPI:
- Last released version:
pip install pyqtgraph - Latest development version:
pip install git+https://github.com/pyqtgraph/pyqtgraph@master
- Last released version:
- From conda
- Last released version:
conda install -c conda-forge pyqtgraph
- Last released version:
- To install system-wide from source distribution:
python setup.py install - Many linux package repositories have release versions.
- To use with a specific project, simply copy the pyqtgraph subdirectory anywhere that is importable from your project.
Documentation
The official documentation lives at https://pyqtgraph.readthedocs.io
The easiest way to learn pyqtgraph is to browse through the examples; run python -m pyqtgraph.examples to launch the examples application.