def __init__(self, parent=None):
Qwt.QwtPlot.__init__(self)
self.setAxisTitle(Qwt.QwtPlot.xBottom, 'Frequency [Hz]')
self.setAxisTitle(Qwt.QwtPlot.yLeft, "Power in dBm")
self.setCanvasBackground(Qt.Qt.black)
self.spectrumCurve = Qwt.QwtPlotCurve("FFT")
self.spectrumCurve.attach(self)
self.spectrumCurve.setPen(Qt.QPen(Qt.Qt.blue))
self.spectrumCurve.setYAxis(Qwt.QwtPlot.yLeft)
self.setAxisScale(Qwt.QwtPlot.xBottom, 0.0, 512.0)
self.setAxisScale(Qwt.QwtPlot.yLeft, -140.0, -60.0)
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 drawBase(self, p):
if p.drawLine(self):
return None
restore = False
if p.errCode() == FLStylePainter.ErrCode.IdNotFound:
# p.painter().save(Qt.QObject.name())
p.painter().save(self.name())
p.applyTransforms()
p.painter().translate(self.xpos1_, self.ypos1_)
restore = True
linePen = Qt.QPen(self.penColor_, self.penWidth_, self.penStyle_)
p.painter().setPen(linePen)
p.painter().drawLine(0, 0, self.xpos2_ - self.xpos1_,
self.ypos2_ - self.ypos1_)
if restore:
p.painter().restore()
def setPen(self, color, width, style):
if not self.PIC_CHK_D():
return None
self.d.pte_.setPen(Qt.QPen(color, width, style))
