pyqtgraph.widgets.MatplotlibWidget — pyqtgraph 0.9.8 documentation

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# Source code for pyqtgraph.widgets.MatplotlibWidget

    from pyqtgraph.Qt import QtGui, QtCore, USE_PYSIDE
    import matplotlib

    if USE_PYSIDE:
        matplotlib.rcParams['backend.qt4']='PySide'

    from matplotlib.backends.backend_qt4agg import FigureCanvasQTAgg as FigureCanvas
    from matplotlib.backends.backend_qt4agg import NavigationToolbar2QTAgg as NavigationToolbar
    from matplotlib.figure import Figure

    class MatplotlibWidget(QtGui.QWidget):
        """
        Implements a Matplotlib figure inside a QWidget.
        Use getFigure() and redraw() to interact with matplotlib.

        Example::

            mw = MatplotlibWidget()
            subplot = mw.getFigure().add_subplot(111)
            subplot.plot(x,y)
            mw.draw()
        """

        def __init__(self, size=(5.0, 4.0), dpi=100):
            QtGui.QWidget.__init__(self)
            self.fig = Figure(size, dpi=dpi)
            self.canvas = FigureCanvas(self.fig)
            self.canvas.setParent(self)
            self.toolbar = NavigationToolbar(self.canvas, self)

            self.vbox = QtGui.QVBoxLayout()
            self.vbox.addWidget(self.toolbar)
            self.vbox.addWidget(self.canvas)

            self.setLayout(self.vbox)

        def getFigure(self):
            return self.fig

        def draw(self):
            self.canvas.draw()

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