def __init__(self, *args):
Qwt.QwtPlot.__init__(self, *args)
self.setCanvasBackground(Qt.Qt.white)
self.alignScales()
# Initialize data
self.x = arange(0.0, 100.1, 0.5)
self.y = zeros(len(self.x), Float)
self.z = zeros(len(self.x), Float)
self.setTitle("A Moving QwtPlot Demonstration")
self.insertLegend(Qwt.QwtLegend(), Qwt.QwtPlot.BottomLegend)
self.curveR = Qwt.QwtPlotCurve("Data Moving Right")
self.curveR.attach(self)
self.curveL = Qwt.QwtPlotCurve("Data Moving Left")
self.curveL.attach(self)
self.curveL.setSymbol(
Qwt.QwtSymbol(Qwt.QwtSymbol.Ellipse, Qt.QBrush(),
Qt.QPen(Qt.Qt.yellow), Qt.QSize(7, 7)))
self.curveR.setPen(Qt.QPen(Qt.Qt.red))
self.curveL.setPen(Qt.QPen(Qt.Qt.blue))
mY = Qwt.QwtPlotMarker()
mY.setLabelAlignment(Qt.Qt.AlignRight | Qt.Qt.AlignTop)
mY.setLineStyle(Qwt.QwtPlotMarker.HLine)
mY.setYValue(0.0)
mY.attach(self)
self.setAxisTitle(Qwt.QwtPlot.xBottom, "Time (seconds)")
self.setAxisTitle(Qwt.QwtPlot.yLeft, "Values")
self.startTimer(50)
self.phase = 0.0
def setBrush(self, color, style):
if not self.PIC_CHK_D():
return None
self.d.pte_.setBrush(Qt.QBrush(color, style))
