def __init__(self, *args): QFrame.__init__(self, *args) self.xMap = QwtScaleMap() self.xMap.setScaleInterval(-0.5, 10.5) self.yMap = QwtScaleMap() self.yMap.setScaleInterval(-1.1, 1.1) # frame style self.setFrameStyle(QFrame.Box | QFrame.Raised) self.setLineWidth(2) self.setMidLineWidth(3) # calculate values self.x = np.arange(0, 10.0, 10.0 / 27) self.y = np.sin(self.x) * np.cos(2 * self.x) # make curves with different styles self.curves = [] self.titles = [] # curve 1 self.titles.append("Style: Sticks, Symbol: Ellipse") curve = QwtPlotCurve() curve.setPen(QPen(Qt.red)) curve.setStyle(QwtPlotCurve.Sticks) curve.setSymbol( QwtSymbol(QwtSymbol.Ellipse, QBrush(Qt.yellow), QPen(Qt.blue), QSize(5, 5))) self.curves.append(curve) # curve 2 self.titles.append("Style: Lines, Symbol: None") curve = QwtPlotCurve() curve.setPen(QPen(Qt.darkBlue)) curve.setStyle(QwtPlotCurve.Lines) self.curves.append(curve) # curve 3 self.titles.append("Style: Lines, Symbol: None, Antialiased") curve = QwtPlotCurve() curve.setPen(QPen(Qt.darkBlue)) curve.setStyle(QwtPlotCurve.Lines) curve.setRenderHint(QwtPlotItem.RenderAntialiased) self.curves.append(curve) # curve 4 self.titles.append("Style: Steps, Symbol: None") curve = QwtPlotCurve() curve.setPen(QPen(Qt.darkCyan)) curve.setStyle(QwtPlotCurve.Steps) self.curves.append(curve) # curve 5 self.titles.append("Style: NoCurve, Symbol: XCross") curve = QwtPlotCurve() curve.setStyle(QwtPlotCurve.NoCurve) curve.setSymbol( QwtSymbol(QwtSymbol.XCross, QBrush(), QPen(Qt.darkMagenta), QSize(5, 5))) self.curves.append(curve) # attach data, using Numeric for curve in self.curves: curve.setData(self.x, self.y)
def __init__(self, *args): QFrame.__init__(self, *args) self.setFrameStyle(QFrame.Box | QFrame.Raised) self.setLineWidth(2) self.setMidLineWidth(3) p = QPalette() p.setColor(self.backgroundRole(), QColor(30, 30, 50)) self.setPalette(p) # make curves and maps self.tuples = [] # curve 1 curve = QwtPlotCurve() curve.setPen(QPen(QColor(150, 150, 200), 2)) curve.setStyle(QwtPlotCurve.Lines) curve.setSymbol(QwtSymbol(QwtSymbol.XCross, QBrush(), QPen(Qt.yellow, 2), QSize(7, 7))) self.tuples.append((curve, QwtScaleMap(0, 100, -1.5, 1.5), QwtScaleMap(0, 100, 0.0, 2*np.pi))) # curve 2 curve = QwtPlotCurve() curve.setPen(QPen(QColor(200, 150, 50), 1, Qt.DashDotDotLine)) curve.setStyle(QwtPlotCurve.Sticks) curve.setSymbol(QwtSymbol(QwtSymbol.Ellipse, QBrush(Qt.blue), QPen(Qt.yellow), QSize(5, 5))) self.tuples.append((curve, QwtScaleMap(0, 100, 0.0, 2*np.pi), QwtScaleMap(0, 100, -3.0, 1.1))) # curve 3 curve = QwtPlotCurve() curve.setPen(QPen(QColor(100, 200, 150))) curve.setStyle(QwtPlotCurve.Lines) self.tuples.append((curve, QwtScaleMap(0, 100, -1.1, 3.0), QwtScaleMap(0, 100, -1.1, 3.0))) # curve 4 curve = QwtPlotCurve() curve.setPen(QPen(Qt.red)) curve.setStyle(QwtPlotCurve.Lines) self.tuples.append((curve, QwtScaleMap(0, 100, -5.0, 1.1), QwtScaleMap(0, 100, -1.1, 5.0))) # data self.phase = 0.0 self.base = np.arange(0.0, 2.01*np.pi, 2*np.pi/(USize-1)) self.uval = np.cos(self.base) self.vval = np.sin(self.base) self.uval[1::2] *= 0.5 self.vval[1::2] *= 0.5 self.newValues() # start timer self.tid = self.startTimer(250)
def setData(self, xyzs, xRange=None, yRange=None): self.xyzs = xyzs shape = xyzs.shape if not xRange: xRange = (0, shape[0]) if not yRange: yRange = (0, shape[1]) self.xMap = QwtScaleMap(0, xyzs.shape[0], *xRange) self.plot().setAxisScale(QwtPlot.xBottom, *xRange) self.yMap = QwtScaleMap(0, xyzs.shape[1], *yRange) self.plot().setAxisScale(QwtPlot.yLeft, *yRange) self.image = toQImage(bytescale(self.xyzs)).mirrored(False, True) for i in range(0, 256): self.image.setColor(i, qRgb(i, 0, 255 - i))