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Merge branch 'develop' into scatterplotwidget-updates

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This commit is contained in:
Luke Campagnola 2018-04-25 11:16:17 -07:00
commit 434d2b8c71
11 changed files with 58 additions and 48 deletions
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38
examples/MultiPlotSpeedTest.py
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@ -12,32 +12,27 @@ from pyqtgraph.Qt import QtGui, QtCore
import numpy as np
import pyqtgraph as pg
from pyqtgraph.ptime import time
#QtGui.QApplication.setGraphicsSystem('raster')
app = QtGui.QApplication([])
#mw = QtGui.QMainWindow()
#mw.resize(800,800)
p = pg.plot()
p.setWindowTitle('pyqtgraph example: MultiPlotSpeedTest')
#p.setRange(QtCore.QRectF(0, -10, 5000, 20))
p.setLabel('bottom', 'Index', units='B')
plot = pg.plot()
plot.setWindowTitle('pyqtgraph example: MultiPlotSpeedTest')
plot.setLabel('bottom', 'Index', units='B')
nPlots = 100
nSamples = 500
#curves = [p.plot(pen=(i,nPlots*1.3)) for i in range(nPlots)]
curves = []
for i in range(nPlots):
c = pg.PlotCurveItem(pen=(i,nPlots*1.3))
p.addItem(c)
c.setPos(0,i*6)
curves.append(c)
for idx in range(nPlots):
curve = pg.PlotCurveItem(pen=(idx,nPlots*1.3))
plot.addItem(curve)
curve.setPos(0,idx*6)
curves.append(curve)
p.setYRange(0, nPlots*6)
p.setXRange(0, nSamples)
p.resize(600,900)
plot.setYRange(0, nPlots*6)
plot.setXRange(0, nSamples)
plot.resize(600,900)
rgn = pg.LinearRegionItem([nSamples/5.,nSamples/3.])
p.addItem(rgn)
plot.addItem(rgn)
data = np.random.normal(size=(nPlots*23,nSamples))
@ -46,13 +41,12 @@ lastTime = time()
fps = None
count = 0
def update():
global curve, data, ptr, p, lastTime, fps, nPlots, count
global curve, data, ptr, plot, lastTime, fps, nPlots, count
count += 1
#print "---------", count
for i in range(nPlots):
curves[i].setData(data[(ptr+i)%data.shape[0]])
#print " setData done."
ptr += nPlots
now = time()
dt = now - lastTime
@ -62,14 +56,12 @@ def update():
else:
s = np.clip(dt*3., 0, 1)
fps = fps * (1-s) + (1.0/dt) * s
p.setTitle('%0.2f fps' % fps)
plot.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

1
examples/__main__.py
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@ -26,6 +26,7 @@ class ExampleLoader(QtGui.QMainWindow):
self.cw = QtGui.QWidget()
self.setCentralWidget(self.cw)
self.ui.setupUi(self.cw)
self.setWindowTitle("PyQtGraph Examples")
self.codeBtn = QtGui.QPushButton('Run Edited Code')
self.codeLayout = QtGui.QGridLayout()

9
examples/fractal.py
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@ -4,6 +4,7 @@ Displays an interactive Koch fractal
"""
import initExample ## Add path to library (just for examples; you do not need this)
from functools import reduce
import pyqtgraph as pg
from pyqtgraph.Qt import QtCore, QtGui
import numpy as np
@ -112,11 +113,3 @@ if __name__ == '__main__':
if (sys.flags.interactive != 1) or not hasattr(QtCore, 'PYQT_VERSION'):
QtGui.QApplication.instance().exec_()

2
pyqtgraph/console/Console.py
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@ -359,7 +359,6 @@ class ConsoleWidget(QtGui.QWidget):
for index, line in enumerate(traceback.extract_stack(frame)):
# extract_stack return value changed in python 3.5
if 'FrameSummary' in str(type(line)):
print(dir(line))
line = (line.filename, line.lineno, line.name, line._line)
self.ui.exceptionStackList.addItem('File "%s", line %s, in %s()\n %s' % line)
@ -380,7 +379,6 @@ class ConsoleWidget(QtGui.QWidget):
for index, line in enumerate(traceback.extract_tb(tb)):
# extract_stack return value changed in python 3.5
if 'FrameSummary' in str(type(line)):
print(dir(line))
line = (line.filename, line.lineno, line.name, line._line)
self.ui.exceptionStackList.addItem('File "%s", line %s, in %s()\n %s' % line)

4
pyqtgraph/exporters/SVGExporter.py
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@ -169,7 +169,7 @@ def _generateItemSvg(item, nodes=None, root=None):
buf = QtCore.QBuffer(arr)
svg = QtSvg.QSvgGenerator()
svg.setOutputDevice(buf)
dpi = QtGui.QDesktopWidget().physicalDpiX()
dpi = QtGui.QDesktopWidget().logicalDpiX()
svg.setResolution(dpi)
p = QtGui.QPainter()
@ -372,7 +372,7 @@ def correctCoordinates(node, defs, item):
ch.setAttribute('font-family', ', '.join([f if ' ' not in f else '"%s"'%f for f in families]))
## correct line widths if needed
if removeTransform and ch.getAttribute('vector-effect') != 'non-scaling-stroke':
if removeTransform and ch.getAttribute('vector-effect') != 'non-scaling-stroke' and grp.getAttribute('stroke-width') != '':
w = float(grp.getAttribute('stroke-width'))
s = fn.transformCoordinates(tr, np.array([[w,0], [0,0]]), transpose=True)
w = ((s[0]-s[1])**2).sum()**0.5

3
pyqtgraph/graphicsItems/LegendItem.py
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@ -110,7 +110,8 @@ class LegendItem(GraphicsWidget, GraphicsWidgetAnchor):
#print("-------")
for sample, label in self.items:
height += max(sample.height(), label.height()) + 3
width = max(width, sample.width()+label.width())
width = max(width, (sample.sizeHint(QtCore.Qt.MinimumSize, sample.size()).width() +
label.sizeHint(QtCore.Qt.MinimumSize, label.size()).width()))
#print(width, height)
#print width, height
self.setGeometry(0, 0, width+25, height)

9
pyqtgraph/graphicsItems/ScatterPlotItem.py
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@ -849,8 +849,15 @@ class SpotItem(object):
def __init__(self, data, plot, index):
self._data = data
self._plot = plot
self._index = index
# SpotItems are kept in plot.data["items"] numpy object array which
# does not support cyclic garbage collection (numpy issue 6581).
# Keeping a strong ref to plot here would leak the cycle
self.__plot_ref = weakref.ref(plot)
@property
def _plot(self):
return self.__plot_ref()
def data(self):
"""Return the user data associated with this spot."""

25
pyqtgraph/opengl/GLViewWidget.py
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@ -16,9 +16,13 @@ class GLViewWidget(QtOpenGL.QGLWidget):
- Axis/grid display
- Export options
High-DPI displays: Qt5 should automatically detect the correct resolution.
For Qt4, specify the ``devicePixelRatio`` argument when initializing the
widget (usually this value is 1-2).
"""
def __init__(self, parent=None):
def __init__(self, parent=None, devicePixelRatio=None):
global ShareWidget
if ShareWidget is None:
@ -37,6 +41,7 @@ class GLViewWidget(QtOpenGL.QGLWidget):
'azimuth': 45, ## camera's azimuthal angle in degrees
## (rotation around z-axis 0 points along x-axis)
'viewport': None, ## glViewport params; None == whole widget
'devicePixelRatio': devicePixelRatio,
}
self.setBackgroundColor('k')
self.items = []
@ -79,10 +84,21 @@ class GLViewWidget(QtOpenGL.QGLWidget):
def getViewport(self):
vp = self.opts['viewport']
dpr = self.devicePixelRatio()
if vp is None:
return (0, 0, self.width(), self.height())
return (0, 0, int(self.width() * dpr), int(self.height() * dpr))
else:
return vp
return tuple([int(x * dpr) for x in vp])
def devicePixelRatio(self):
dpr = self.opts['devicePixelRatio']
if dpr is not None:
return dpr
if hasattr(QtOpenGL.QGLWidget, 'devicePixelRatio'):
return QtOpenGL.QGLWidget.devicePixelRatio(self)
else:
return 1.0
def resizeGL(self, w, h):
pass
@ -99,7 +115,8 @@ class GLViewWidget(QtOpenGL.QGLWidget):
def projectionMatrix(self, region=None):
# Xw = (Xnd + 1) * width/2 + X
if region is None:
region = (0, 0, self.width(), self.height())
dpr = self.devicePixelRatio()
region = (0, 0, self.width() * dpr, self.height() * dpr)
x0, y0, w, h = self.getViewport()
dist = self.opts['distance']

2
pyqtgraph/opengl/MeshData.py
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@ -485,7 +485,7 @@ class MeshData(object):
if isinstance(radius, int):
radius = [radius, radius] # convert to list
## compute vertexes
th = np.linspace(2 * np.pi, 0, cols).reshape(1, cols)
th = np.linspace(2 * np.pi, (2 * np.pi)/cols, cols).reshape(1, cols)
r = np.linspace(radius[0],radius[1],num=rows+1, endpoint=True).reshape(rows+1, 1) # radius as a function of z
verts[...,2] = np.linspace(0, length, num=rows+1, endpoint=True).reshape(rows+1, 1) # z
if offset:

7
pyqtgraph/opengl/items/GLGridItem.py
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@ -10,10 +10,10 @@ class GLGridItem(GLGraphicsItem):
"""
**Bases:** :class:`GLGraphicsItem <pyqtgraph.opengl.GLGraphicsItem>`
Displays a wire-grame grid.
Displays a wire-frame grid.
"""
def __init__(self, size=None, color=None, antialias=True, glOptions='translucent'):
def __init__(self, size=None, color=(1, 1, 1, .3), antialias=True, glOptions='translucent'):
GLGraphicsItem.__init__(self)
self.setGLOptions(glOptions)
self.antialias = antialias
@ -21,6 +21,7 @@ class GLGridItem(GLGraphicsItem):
size = QtGui.QVector3D(20,20,1)
self.setSize(size=size)
self.setSpacing(1, 1, 1)
self.color = color
def setSize(self, x=None, y=None, z=None, size=None):
"""
@ -67,7 +68,7 @@ class GLGridItem(GLGraphicsItem):
xs,ys,zs = self.spacing()
xvals = np.arange(-x/2., x/2. + xs*0.001, xs)
yvals = np.arange(-y/2., y/2. + ys*0.001, ys)
glColor4f(1, 1, 1, .3)
glColor4f(*self.color)
for x in xvals:
glVertex3f(x, yvals[0], 0)
glVertex3f(x, yvals[-1], 0)

2
pyqtgraph/widgets/RawImageWidget.py
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@ -122,7 +122,7 @@ if HAVE_OPENGL:
if not self.uploaded:
self.uploadTexture()
glViewport(0, 0, self.width(), self.height())
glViewport(0, 0, self.width() * self.devicePixelRatio(), self.height() * self.devicePixelRatio())
glEnable(GL_TEXTURE_2D)
glBindTexture(GL_TEXTURE_2D, self.texture)
glColor4f(1,1,1,1)