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PlotDataItem: add missing 'stepMode' keyword argument for PlotCurveItem

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This commit is contained in:
Mikhail Terekhov 2014-04-12 15:31:20 -04:00
parent 62b506c63c
commit ac90bf4c3b
2 changed files with 9 additions and 3 deletions
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6
examples/histogram.py
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@ -15,6 +15,7 @@ win.resize(800,350)
win.setWindowTitle('pyqtgraph example: Histogram')
plt1 = win.addPlot()
plt2 = win.addPlot()
plt3 = win.addPlot()
## make interesting distribution of values
vals = np.hstack([np.random.normal(size=500), np.random.normal(size=260, loc=4)])
@ -27,11 +28,12 @@ y,x = np.histogram(vals, bins=np.linspace(-3, 8, 40))
curve = pg.PlotCurveItem(x, y, stepMode=True, fillLevel=0, brush=(0, 0, 255, 80))
plt1.addItem(curve)
plt2.plot(x, y, stepMode=True, fillLevel=0, brush=(0,0,255,150))
## Now draw all points as a nicely-spaced scatter plot
y = pg.pseudoScatter(vals, spacing=0.15)
#plt2.plot(vals, y, pen=None, symbol='o', symbolSize=5)
plt2.plot(vals, y, pen=None, symbol='o', symbolSize=5, symbolPen=(255,255,255,200), symbolBrush=(0,0,255,150))
#plt3.plot(vals, y, pen=None, symbol='o', symbolSize=5)
plt3.plot(vals, y, pen=None, symbol='o', symbolSize=5, symbolPen=(255,255,255,200), symbolBrush=(0,0,255,150))
## Start Qt event loop unless running in interactive mode or using pyside.
if __name__ == '__main__':

6
pyqtgraph/graphicsItems/PlotDataItem.py
View File

@ -68,6 +68,9 @@ class PlotDataItem(GraphicsObject):
fillLevel Fill the area between the curve and fillLevel
fillBrush Fill to use when fillLevel is specified.
May be any single argument accepted by :func:`mkBrush() <pyqtgraph.mkBrush>`
stepMode If True, two orthogonal lines are drawn for each sample
as steps. This is commonly used when drawing histograms.
Note that in this case, len(x) == len(y) + 1
========== ==============================================================================
**Point style keyword arguments:** (see :func:`ScatterPlotItem.setData() <pyqtgraph.ScatterPlotItem.setData>` for more information)
@ -150,6 +153,7 @@ class PlotDataItem(GraphicsObject):
'shadowPen': None,
'fillLevel': None,
'fillBrush': None,
'stepMode': None,
'symbol': None,
'symbolSize': 10,
@ -456,7 +460,7 @@ class PlotDataItem(GraphicsObject):
def updateItems(self):
curveArgs = {}
for k,v in [('pen','pen'), ('shadowPen','shadowPen'), ('fillLevel','fillLevel'), ('fillBrush', 'brush'), ('antialias', 'antialias'), ('connect', 'connect')]:
for k,v in [('pen','pen'), ('shadowPen','shadowPen'), ('fillLevel','fillLevel'), ('fillBrush', 'brush'), ('antialias', 'antialias'), ('connect', 'connect'), ('stepMode', 'stepMode')]:
curveArgs[v] = self.opts[k]
scatterArgs = {}