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testPlotWidget.py
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testPlotWidget.py
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# coding: utf-8
# /*##########################################################################
#
# Copyright (c) 2016 European Synchrotron Radiation Facility
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.
#
# ###########################################################################*/
"""Interactive test script for silx/PyMca PlotWindow
Script options:
- pymca: To use PyMca PlotWindow (default is using silx)
- gl: To use OpenGL backend (only with PyMca, default is matplotlib)
"""
# import ######################################################################
import logging
import sys
import time
import numpy as np
from uuid import uuid4
logging.basicConfig()
logger = logging.getLogger()
# import PySide
if hasattr(sys, "argv") and "pymca" in sys.argv:
BACKEND = "pymca"
logger.warning("Using PyMca PlotWindow")
from PyMca5.PyMcaGui import PyMcaQt as qt
from PyMca5.PyMcaGui.plotting.PlotWindow import PlotWindow
else:
BACKEND = "silx"
logger.warning("Using silx PlotWindow")
from silx.gui import qt
from silx.gui.plot import PlotWindow
# logging.getLogger('silx.gui.plot.Plot').setLevel(logging.ERROR)
# TestWindow ##################################################################
class TestWindow(PlotWindow):
_COLORS = "black", "red", "green", "blue", None # 'video inverted'
def __init__(self, parent, backend):
self._colorIndex = 0
self.__grid = 0
self.__activeCurve = True
if BACKEND == "silx":
super(TestWindow, self).__init__(
parent=parent,
backend=backend,
control=True,
position=[
("X", lambda x, y: x),
("Y", lambda x, y: y),
("Value", self._getValue),
],
)
from silx.gui.plot import PlotTools
self.profileToolBar = PlotTools.ProfileToolBar(plot=self)
self.addToolBar(self.profileToolBar)
else:
super(TestWindow, self).__init__(
parent=parent,
backend=backend,
aspect=True,
colormap=True,
control=True,
position=True,
roi=True,
)
self._initMenuBar()
self.show()
# self.sigPlotSignal.connect(self._plotCallback)
testImage(self) # testLog(self)
self.setPanWithArrowKeys(True)
def _getValue(self, x, y):
image = self.getActiveImage()
if image is None:
return "No image"
else:
data, params = image[0], image[4]
try:
row = int((y - params["origin"][1]) / params["scale"][1])
col = int((x - params["origin"][0]) / params["scale"][0])
except ValueError:
return "-"
try:
value = data[row, col]
except IndexError:
return "-"
else:
return row, col, data[row, col]
def doReplot(self, *args, **kwargs):
"""Only calls replot when using PyMca, it is useless with silx."""
if BACKEND == "pymca":
super(TestWindow, self).replot(*args, **kwargs)
def _plotCallback(self, eventDict=None):
if eventDict["event"] != "mouseMoved":
print(eventDict)
if eventDict["event"] == "curveClicked":
print("setActiveCurve", eventDict["label"])
self.setActiveCurve(eventDict["label"])
if eventDict["event"] == "drawingFinished":
shape = eventDict["type"]
if shape in ["polygon", "rectangle"]:
self.addItem(
xdata=eventDict["xdata"],
ydata=eventDict["ydata"],
legend=str(uuid4()),
info=None,
replace=False,
shape=eventDict["type"],
fill=True,
color="#000000",
)
elif shape in ["hline", "vline", "line"]:
self.addItem(
xdata=eventDict["xdata"],
ydata=eventDict["ydata"],
legend=str(uuid4()),
info=None,
replace=False,
shape=eventDict["type"],
fill=False,
color="#0000FF",
)
def _initMenuBar(self):
# Menu VIEW
menu = self.menuBar().addMenu("View")
menu.addAction("resetZoom()", self.resetZoom)
def resetDataMargins():
self.setDataMargins()
menu.addAction("setDataMargins()", resetDataMargins)
def setDataMargins():
self.setDataMargins(0.1, 0.2, 0.3, 0.4)
menu.addAction("setDataMargins(.1, .2, .3, .4)", setDataMargins)
def resetZoom():
self.resetZoom((0.4, 0.3, 0.2, 0.1))
menu.addAction("resetZoom(0.4, 0.3, 0.2, 0.1)", resetZoom)
def toggleAutoScaleX():
self.setXAxisAutoScale(not self.isXAxisAutoScale())
self.statusBar().showMessage(
"Axis autoscale X: %s, Y: %s"
% (self.isXAxisAutoScale(), self.isYAxisAutoScale())
)
menu.addAction("Toggle Autoscale X", toggleAutoScaleX)
def toggleAutoScaleY():
self.setYAxisAutoScale(not self.isYAxisAutoScale())
self.statusBar().showMessage(
"Axis autoscale X: %s, Y: %s"
% (self.isXAxisAutoScale(), self.isYAxisAutoScale())
)
menu.addAction("Toggle Autoscale Y", toggleAutoScaleY)
def keepAspectRatio():
self.keepDataAspectRatio(not self.isKeepDataAspectRatio())
# Ugly workaround Plot not forwarding isKeepDataAspectRatio
menu.addAction("Keep aspect ratio", keepAspectRatio)
def invertYAxis():
self.invertYAxis(not self.isYAxisInverted())
self.doReplot()
menu.addAction("Invert Y axis", invertYAxis)
def changeGrid():
self.__grid = (self.__grid + 1) % 4
self.showGrid(self.__grid)
self.statusBar().showMessage("Grid mode: %d" % self.__grid)
menu.addAction("Change Grid", changeGrid)
def toggleCursor():
cursor = self.getGraphCursor()
if cursor is None:
self.setGraphCursor(True, color="red", linewidth=1)
else:
self.setGraphCursor(False)
self.statusBar().showMessage("Cursor mode: %s" % str(self.getGraphCursor()))
menu.addAction("Toggle Cursor", toggleCursor)
def toggleLogX():
self.setXAxisLogarithmic(not self.isXAxisLogarithmic())
self.doReplot()
self.statusBar().showMessage(
"Log Scale X: %s, Y: %s"
% (self.isXAxisLogarithmic(), self.isYAxisLogarithmic())
)
menu.addAction("Toggle Log X", toggleLogX)
def toggleLogY():
self.setYAxisLogarithmic(not self.isYAxisLogarithmic())
self.doReplot()
self.statusBar().showMessage(
"Log Scale X: %s, Y: %s"
% (self.isXAxisLogarithmic(), self.isYAxisLogarithmic())
)
menu.addAction("Toggle Log Y", toggleLogY)
def toggleLogY():
self.setYAxisLogarithmic(not self.isYAxisLogarithmic())
self.doReplot()
self.statusBar().showMessage(
"Log Scale X: %s, Y: %s"
% (self.isXAxisLogarithmic(), self.isYAxisLogarithmic())
)
menu.addAction("Toggle Log Y", toggleLogY)
def toggleActiveCurve():
self.enableActiveCurveHandling(not self.isActiveCurveHandlingEnabled())
self.doReplot()
self.statusBar().showMessage(
"Active curve handling: %s" % self.isActiveCurveHandlingEnabled()
)
menu.addAction("Toggle Active Curve Handling", toggleActiveCurve)
def changeBaseVectors():
baseVectors = self._plot.getBaseVectors()
if baseVectors == ((1.0, 0.0), (0.0, 1.0)):
baseVectors = (1.0, 0.5), (0.3, 1.0)
else:
baseVectors = (1.0, 0.0), (0.0, 1.0)
self.setBaseVectors(*baseVectors)
self.doReplot()
menu.addAction("Change base vectors", changeBaseVectors)
# Menu INTERACTION
menu = self.menuBar().addMenu("Interaction")
def zoomMode():
self._colorIndex = (self._colorIndex + 1) % len(self._COLORS)
color = self._COLORS[self._colorIndex]
self.statusBar().showMessage("Enable zoom, color: %s" % color)
self.setZoomModeEnabled(True, color)
menu.addAction("Zoom Mode", zoomMode)
def drawPolygon():
self.setDrawModeEnabled(True, "polygon", label="mask", color="red")
menu.addAction("Draw Polygon", drawPolygon)
def drawRect():
self.setDrawModeEnabled(True, "rectangle", label="mask")
menu.addAction("Draw Rectangle", drawRect)
def drawLine():
self.setDrawModeEnabled(True, "line", label="LINE")
menu.addAction("Draw Line", drawLine)
def drawHLine():
self.setDrawModeEnabled(True, "hline", label="HORIZONTAL")
menu.addAction("Draw Horiz. Line", drawHLine)
def drawVLine():
self.setDrawModeEnabled(True, "vline", label="VERTICAL")
menu.addAction("Draw Vert. Line", drawVLine)
def toggleActiveCurve():
self.__activeCurve = not self.__activeCurve
self.enableActiveCurveHandling(self.__activeCurve)
self.statusBar().showMessage(
"Active curve handling: %s" % self.__activeCurve
)
menu.addAction("Toggle active curve", toggleActiveCurve)
def panMode():
if hasattr(self, "setInteractiveMode"): # silx
self.setInteractiveMode("pan")
else: # matplotlib OpenGL backend
self._plot.setInteractiveMode("pan")
action = menu.addAction("Pan Mode", panMode)
if not hasattr(self, "setInteractiveMode") and not hasattr(
self._plot, "setInteractiveMode"
):
action.setEnabled(False)
# Menu DATA
menu = self.menuBar().addMenu("Data")
def clear():
self.resetTimer()
self.clear()
menu.addAction("Clear", self.clear)
def saveAsSvg():
filename = "testSaveGraph.svg"
self.saveGraph(filename, "svg")
self.statusBar().showMessage("Saved as %s" % filename)
menu.addAction("Save as svg", saveAsSvg)
def toggleRightAxis():
curve = self.getCurve("rightTest")
if curve is None:
data = np.arange(1000.0, dtype=np.float32)
self.addCurve(
data,
np.sqrt(data),
legend="rightTest",
replace=False,
replot=True,
z=5,
color="black",
linestyle="-",
selectable=True,
xlabel="Right X",
ylabel="Right Y",
yaxis="right",
)
else:
self.removeCurve("rightTest")
menu.addAction("Right axis data", toggleRightAxis)
def setUInt16Data():
dataUInt16 = np.arange(1024 * 1024, dtype=np.uint16)
dataUInt16.shape = 1024, -1
colormap2 = {
"name": "temperature",
"normalization": "linear",
"autoscale": False,
"vmin": 1.0,
"vmax": dataUInt16.max(),
"colors": 256,
}
self.addImage(
dataUInt16,
legend="image 2",
xScale=(0, 1.0),
yScale=(100.0, 1.0),
replace=False,
replot=True,
colormap=colormap2,
alpha=0.5,
)
menu.addAction("DataSet uint16 1", setUInt16Data)
def setUInt16Data2():
dataUInt16 = np.arange(1024 * 1024, dtype=np.uint16) + 10000
dataUInt16.shape = 1024, -1
colormap2 = {
"name": "temperature",
"normalization": "linear",
"autoscale": False,
"vmin": 1.0,
"vmax": dataUInt16.max(),
"colors": 256,
}
self.addImage(
dataUInt16,
legend="image 2",
xScale=(0, 1.0),
yScale=(0.0, 1.0),
replace=False,
replot=True,
colormap=colormap2,
)
menu.addAction("DataSet uint16 2", setUInt16Data2)
def testEverythingAction():
self.resetTimer()
self.clear()
self.resetZoom()
testEverything(self)
menu.addAction("Test everything", testEverythingAction)
def testLogAction():
self.resetTimer()
self.clear()
self.resetZoom()
testLog(self)
menu.addAction("Test Log", testLogAction)
def testErrorBarsAction():
self.resetTimer()
self.clear()
self.resetZoom()
testErrorBars(self)
menu.addAction("Test Error Bars", testErrorBarsAction)
def testReversedImagesAction():
self.resetTimer()
self.clear()
self.resetZoom()
testReversedImages(self)
menu.addAction("Test Reversed Images", testReversedImagesAction)
def testMarkersAction():
self.resetTimer()
self.clear()
self.resetZoom()
testMarkers(self)
menu.addAction("Test Markers", testMarkersAction)
def testScatterAction():
self.resetTimer()
self.clear()
self.resetZoom()
testScatter(self)
menu.addAction("Test Scatter", testScatterAction)
def testImageAction():
self.resetTimer()
self.clear()
self.resetZoom()
testImage(self)
# self.menuBar().hide()
menu.addAction("Test Image", testImageAction)
def testStreamingAction():
self.resetTimer()
self.clear()
self.streaming()
self.resetZoom()
self.useTimer(self.streaming, 100)
menu.addAction("Test Streaming", testStreamingAction)
def streaming(self):
data = np.asarray(np.random.random(512 * 512), dtype=np.float32)
data.shape = 512, 512
# resetzoom=False to avoid resetZoom
self.addImage(data, replace=False, replot=False)
self.doReplot()
def useTimer(self, callback, timeoutMS):
self.timer = qt.QTimer()
self.timer.timeout.connect(callback)
self.timer.start(timeoutMS)
def resetTimer(self):
if hasattr(self, "timer"):
self.timer.stop()
del self.timer
def keyPressEvent(self, event):
"""Forward key events to plot widget...
Find a better way to do it
"""
super(TestWindow, self).keyPressEvent(event)
# test ########################################################################
# Testing Latin-1 characters with python 2.x
# title = u'Title !#$%&\'()*+,-./¡¢£¤¥¦§¨©ª«¬-®¯'
# xLabel = u'Rows ÐÑÒÓÔÕÖ×ØÙÚÛÜuÝÞß'
# yLabel = u'Columns ðñòóôõö÷øùúûüýþÿ'
# Testing Latin-1 characters with python 3.x
# title = 'Title !#$%&\'()*+,-./¡¢£¤¥¦§¨©ª«¬-®¯'
# xLabel = 'Rows ÐÑÒÓÔÕÖ×ØÙÚÛÜuÝÞß'
# yLabel = 'Columns ðñòóôõö÷øùúûüýþÿ'
title = "Title"
xLabel = "Rows"
yLabel = "Columns"
def testEverything(w):
"""Dummy test of many stuff."""
w.setXAxisLogarithmic(False)
w.setYAxisLogarithmic(False)
w.setGraphTitle(title)
w.setGraphXLabel(xLabel)
w.setGraphYLabel(yLabel)
norm = "log"
size = 1024
data = np.arange(float(size) * size, dtype=np.float32)
data.shape = size, size
dataUInt16 = np.array(data, dtype=np.uint16)
dataUInt8 = np.array(data, dtype=np.uint8)
w.addItem(
xdata=np.array((0, 0, 200, 200)),
ydata=np.array((0, 200, 200, 0)),
legend="test",
info=None,
replace=False,
shape="polygon",
fill=True,
color="blue",
)
w.addItem(
xdata=np.array((200, 200, 400, 400)),
ydata=np.array((200, 400, 400, 200)),
legend="test2",
info=None,
replace=False,
shape="polygon",
fill=False,
color="green",
)
w.addItem(
xdata=np.array((1300, 1600, 1900, 1300, 1900)),
ydata=np.array((-700, -200, -700, -300, -300)),
legend="star",
info=None,
replace=False,
shape="polygon",
fill=True,
color="#000000",
)
colormap = {
"name": "temperature",
"normalization": "linear",
"autoscale": True,
"vmin": 0.0,
"vmax": 1.0,
"colors": 256,
}
w.addImage(
data,
legend="image 1",
xScale=(25, 1.0),
yScale=(-size, 1.0),
replot=False,
colormap=colormap,
z=2,
)
colormap2 = {
"name": "temperature",
"normalization": norm,
"autoscale": False,
"vmin": 1.0,
"vmax": dataUInt16.max(),
"colors": 256,
}
w.addImage(
dataUInt16,
legend="image 2",
xScale=(0, 1.0),
yScale=(0.0, 1.0),
replace=False,
replot=False,
colormap=colormap2,
)
colormap3 = {
"name": "red",
"normalization": "linear",
"autoscale": True,
"vmin": 0.0,
"vmax": 1.0,
"colors": 256,
}
w.addImage(
dataUInt8,
legend="image 3",
xScale=(size, 1.0),
yScale=(-size / 2, 1.0),
replace=False,
replot=False,
colormap=colormap3,
)
rgbData = np.array(
(
((0, 0, 0), (128, 0, 0), (255, 0, 0)),
((0, 128, 0), (0, 128, 128), (0, 128, 256)),
),
dtype=np.uint8,
)
w.addImage(
rgbData,
legend="rgb",
xScale=(-30, 10),
yScale=(-20, 10),
replace=False,
replot=False,
)
rgbaData = np.array(
(
((0, 0, 0, 0.5), (0.5, 0, 0, 1), (1, 0, 0, 0.5)),
((0, 0.5, 0, 1), (0, 0.5, 0.5, 1), (0, 1, 1, 0.5)),
),
dtype=np.float32,
)
w.addImage(
rgbaData,
legend="rgba",
xScale=(-5, 10),
yScale=(200, 10),
replace=False,
replot=False,
)
size = 2000
data2 = np.arange(float(size) * 3, dtype=np.dtype(np.float32))
data2.shape = 3, size
w.addImage(
data2,
legend="image 4",
xScale=(100, 1.0),
yScale=(-200.0, 200.0),
replace=False,
replot=False,
colormap=colormap3,
selectable=True,
draggable=False,
)
# curves
xData = np.arange(1000)
yData = np.random.random(1000)
colorData = np.array(np.random.random(3 * 1000), dtype=np.float32)
colorData.shape = 1000, 3
w.addCurve(
xData,
-50 + 10 * np.sin(xData),
legend="curve 1",
replace=False,
replot=False,
linestyle="",
symbol="s",
z=3,
xlabel="Curve 1 X",
ylabel="Curve 1 Y",
) # , fill=True)
w.addCurve(
xData + 1000,
xData - 1000 + 200 * yData,
legend="curve 2",
replace=False,
replot=False,
color="green", # color=colorData,
linestyle="-",
symbol="o",
selectable=True,
xlabel="Curve 2 X",
ylabel="Curve 2 Y",
)
# markers
w.insertXMarker(1000, "testX", None, color="pink", selectable=False, draggable=True)
w.insertYMarker(
-600, "testY", "markerY", color="black", selectable=False, draggable=True
)
w.insertMarker(
1000,
500,
"constraintV",
"constraint Vert",
color="black",
selectable=False,
draggable=True,
symbol="o",
constraint="v",
)
w.insertMarker(
1000,
600,
"constraintH",
"constraint Horiz",
color="blue",
selectable=False,
draggable=True,
symbol="d",
constraint="h",
)
def squareConstraint(x, y):
return min(1500, max(x, 900)), min(800, max(y, 200))
w.insertMarker(
1000,
700,
"constraint",
"constraint",
color="red",
selectable=False,
draggable=True,
symbol="+",
constraint=squareConstraint,
)
w.insertMarker(
-100,
500,
"testS",
"markerSelect",
color="black",
selectable=True,
draggable=False,
)
w.insertXMarker(
500, "test", "marker", color="black", selectable=False, draggable=False
)
w.resetZoom()
# test ########################################################################
def testMarkers(w):
# markers
w.insertXMarker(1000, "testX", None, color="pink", selectable=False, draggable=True)
w.insertYMarker(
600, "testY", "markerY", color="black", selectable=False, draggable=True
)
w.insertMarker(
1000,
500,
"constraintV",
"constraint Vert",
color="black",
selectable=False,
draggable=True,
symbol="o",
constraint="v",
)
w.insertMarker(
1000,
600,
"constraintH",
"constraint Horiz",
color="blue",
selectable=False,
draggable=True,
symbol="d",
constraint="h",
)
def squareConstraint(x, y):
return min(1500, max(x, 900)), min(800, max(y, 200))
w.insertMarker(
1000,
700,
"constraint",
"constraint",
color="red",
selectable=False,
draggable=True,
symbol="*",
constraint=squareConstraint,
)
w.insertMarker(
100,
500,
"testS",
"markerSelect",
color="black",
selectable=True,
draggable=False,
)
w.insertXMarker(
500, "test", "marker", color="black", selectable=False, draggable=False
)
# Add one curve
data = np.array((1.0, 2000.0))
w.addCurve(x=data, y=data)
w.resetZoom()
# test ########################################################################
def testLog(w):
w.keepDataAspectRatio(False)
w.setXAxisLogarithmic(True)
w.setYAxisLogarithmic(True)
# Items
w.addItem(
np.array((200, 200, 400, 400)),
np.array((200, 40000, 40000, 200)),
legend="test2",
info=None,
replace=False,
shape="polygon",
color="green",
) # , fill=False
# Image
# size = 1024
# data = np.arange(float(size)*size, dtype=np.float32)
# data.shape = size,size
# colormap = {'name': 'gray', 'normalization':'linear',
# 'autoscale':True, 'vmin':0.0, 'vmax':1.0,
# 'colors':256}
# w.addImage(data, legend="image 1",
# xScale=(1.0, 1.0) , yScale=(1.0, 1.0),
# replot=False, colormap=colormap)
# curves
xData = np.arange(1000.0) + 1.0
# print('add curve right')
# w.addCurve(xData, 1./xData ** 8, legend="curve right",
# #color='#FF000080',
# replace=False, replot=False, linestyle="-", symbol="o",
# xlabel="curve Right X", ylabel="curve Right Y",
# #selectable=True,
# yaxis="right") #fill=True)
# w.setActiveCurve("curve right", False)
w.addCurve(
xData,
xData ** 8,
legend="curve 2",
z=2,
# color='#0000FF80',
replace=False,
replot=False,
linestyle="-",
symbol="o",
xlabel="curve 2 X",
ylabel="curve 2 Y",
linewidth=3,
# selectable=True,
yaxis="left",
) # fill=True)
w.addCurve(
xData,
(xData - 100.0) ** 7,
legend="curve minus",
z=1,
# color='#0000FF80',
replace=False,
replot=False,
linestyle="--",
symbol="o",
xlabel="curve Minus X",
ylabel="curve Minus Y",
# selectable=True,
yaxis="left",
)
w.addCurve(
xData,
xData ** 7,
legend="curve 1",
z=1,
# color='#0000FF80',
replace=False,
replot=False,
linestyle=":",
symbol="o",
xlabel="curve Minus X",
ylabel="curve Minus Y",
# selectable=True,
yaxis="left",
)
# markers
# w.insertXMarker(1000, 'testX', 'markerX', color='pink',
# selectable=False, draggable=True)
# w.insertYMarker(1000, 'testY', 'markerY', color='black',
# selectable=False, draggable=True)
# w.insertMarker(1000, 500, 'testXY', 'markerPt', color='black',
# selectable=False, draggable=True)
w.resetZoom()
# test ########################################################################
def testErrorBars(w):
w.enableActiveCurveHandling(False)
w.keepDataAspectRatio(False)
w.setXAxisLogarithmic(False)
w.setYAxisLogarithmic(False)
# curves
xData = np.arange(100.0) + 1.0
yData = xData
xError = (np.arange(100.0), 100.0 - np.arange(100.0))
yError = np.ones((100,)) * 0.5
w.addCurve(
xData,
yData,
legend="curve error bars",
color="red",
replace=False,
replot=False,
linestyle="-",
symbol="o",
xlabel="X",
ylabel="Y",
xerror=xError,
yerror=yError,
# selectable=True,
yaxis="left",
) # fill=True)
size = 100
x = np.random.random(size) * size
y = np.random.random(size) * size
color = np.random.random(size * 3).reshape(size, -1)
w.addCurve(
x,
y,
legend="scatter",
color=color,
symbol="o",
linestyle=" ",
xerror=1.0,
yerror=2.0,
)
w.resetZoom()
# test ########################################################################
def testReversedImages(w):
"""Dummy reversed image [x|y]Scale."""
w.setXAxisLogarithmic(False)
w.setYAxisLogarithmic(False)
w.setGraphTitle(title)
w.setGraphXLabel(xLabel)