def setPlotWidget(self): self.plotWidget = QwtPlot(self.plotFrame) sizePolicy = QSizePolicy(QSizePolicy.Expanding, QSizePolicy.Expanding) sizePolicy.setHorizontalStretch(0) sizePolicy.setVerticalStretch(1) sizePolicy.setHeightForWidth( self.plotWidget.sizePolicy().hasHeightForWidth()) self.plotWidget.setSizePolicy(sizePolicy) self.plotWidget.setMinimumSize(QSize(0, 0)) self.plotWidget.setAutoFillBackground(False) self.plotWidget.setCanvasBackground(Qt.white) self.plotWidget.plotLayout().setAlignCanvasToScales(True) zoomer = QwtPlotZoomer(QwtPlot.xBottom, QwtPlot.yLeft, QwtPicker.DragSelection, QwtPicker.AlwaysOff, self.plotWidget.canvas()) zoomer.setRubberBandPen(QPen(Qt.blue)) # The pen to draw zone of zooming. picker = QwtPlotPicker(QwtPlot.xBottom, QwtPlot.yLeft, QwtPicker.NoSelection, QwtPlotPicker.CrossRubberBand, QwtPicker.AlwaysOn, self.plotWidget.canvas()) picker.setTrackerPen(QPen(Qt.green)) grid = QwtPlotGrid() grid.setPen(QPen(QColor('grey'), 0, Qt.DotLine)) grid.attach(self.plotWidget) layout = self.plotLayout layout.addWidget(self.plotWidget)
def __init__(self, parent): QMainWindow.__init__(self, parent) DlgUtils.__init__(self, 'Live data') self.panel = parent layout1 = QVBoxLayout() self.plot = QwtPlot(self) layout1.addWidget(self.plot) self.curve = QwtPlotCurve() self.curve.setRenderHint(QwtPlotCurve.RenderAntialiased) self.curve.attach(self.plot) self.marker = QwtPlotMarker() self.marker.attach(self.plot) self.markerpen = QPen(Qt.red) self.marker.setSymbol( QwtSymbol(QwtSymbol.Ellipse, QBrush(), self.markerpen, QSize(7, 7))) self.zoomer = QwtPlotZoomer(self.plot.canvas()) self.zoomer.setMousePattern(QwtPlotZoomer.MouseSelect3, Qt.NoButton) self.picker = QwtPlotPicker(self.plot.canvas()) self.picker.setSelectionFlags(QwtPlotPicker.PointSelection | QwtPlotPicker.ClickSelection) self.picker.setMousePattern(QwtPlotPicker.MouseSelect1, Qt.MidButton) self.picker.selected.connect(self.pickerSelected) layout2 = QHBoxLayout() layout2.addWidget(QLabel('Scale:', self)) self.scale = QComboBox(self) self.scale.addItems([ 'Single detectors, sorted by angle', 'Scattering angle 2theta (deg)', 'Q value (A-1)' ]) self.scale.currentIndexChanged[int].connect(self.scaleChanged) layout2.addWidget(self.scale) layout2.addStretch() self.scaleframe = QFrame(self) self.scaleframe.setLayout(layout2) self.scaleframe.setVisible(False) layout1.addWidget(self.scaleframe) mainframe = QFrame(self) mainframe.setLayout(layout1) self.setCentralWidget(mainframe) self.setContentsMargins(6, 6, 6, 6) plotfont = scaledFont(self.font(), 0.7) self.plot.setAxisFont(QwtPlot.xBottom, plotfont) self.plot.setAxisFont(QwtPlot.yLeft, plotfont) self.plot.setCanvasBackground(Qt.white) self.resize(800, 200) self._detinfo = None self._anglemap = None self._infowindow = None self._infolabel = None self._xs = self._ys = None self._type = None
def changePlotWidget(self, library, frame_for_plot): if library == "Qwt5" and has_qwt: plotWdg = QwtPlot(frame_for_plot) sizePolicy = QSizePolicy(QSizePolicy.Expanding, QSizePolicy.Expanding) sizePolicy.setHorizontalStretch(0) sizePolicy.setVerticalStretch(0) sizePolicy.setHeightForWidth( plotWdg.sizePolicy().hasHeightForWidth()) plotWdg.setSizePolicy(sizePolicy) plotWdg.setMinimumSize(QSize(0, 0)) plotWdg.setAutoFillBackground(False) #Decoration plotWdg.setCanvasBackground(Qt.white) plotWdg.plotLayout().setAlignCanvasToScales(True) zoomer = QwtPlotZoomer(QwtPlot.xBottom, QwtPlot.yLeft, QwtPicker.DragSelection, QwtPicker.AlwaysOff, plotWdg.canvas()) zoomer.setRubberBandPen(QPen(Qt.blue)) if platform.system() != "Windows": # disable picker in Windows due to crashes picker = QwtPlotPicker(QwtPlot.xBottom, QwtPlot.yLeft, QwtPicker.NoSelection, QwtPlotPicker.CrossRubberBand, QwtPicker.AlwaysOn, plotWdg.canvas()) picker.setTrackerPen(QPen(Qt.green)) #self.dockwidget.qwtPlot.insertLegend(QwtLegend(), QwtPlot.BottomLegend); grid = Qwt.QwtPlotGrid() grid.setPen(QPen(QColor('grey'), 0, Qt.DotLine)) grid.attach(plotWdg) return plotWdg elif library == "Matplotlib" and has_mpl: from matplotlib.figure import Figure from matplotlib.backends.backend_qt5agg import FigureCanvasQTAgg fig = Figure((1.0, 1.0), linewidth=0.0, subplotpars=matplotlib.figure.SubplotParams(left=0, bottom=0, right=1, top=1, wspace=0, hspace=0)) font = {'family': 'arial', 'weight': 'normal', 'size': 12} matplotlib.rc('font', **font) rect = fig.patch rect.set_facecolor((0.9, 0.9, 0.9)) self.subplot = fig.add_axes((0.07, 0.15, 0.92, 0.82)) self.subplot.set_xbound(0, 1000) self.subplot.set_ybound(0, 1000) self.manageMatplotlibAxe(self.subplot) canvas = FigureCanvasQTAgg(fig) sizePolicy = QSizePolicy(QSizePolicy.Expanding, QSizePolicy.Expanding) sizePolicy.setHorizontalStretch(0) sizePolicy.setVerticalStretch(0) canvas.setSizePolicy(sizePolicy) return canvas