grapher.py 文件源码

def __init__(self, parent=None, width=5, height=4, dpi=80):
        self.fig = Figure(figsize=(width, height), dpi=dpi)
        super(PowerGraph, self).__init__(self.fig)

        self.setParent(parent)

        self.graph = self.fig.add_subplot(111)
        self.clear()

        self.setSizePolicy(QtGui.QSizePolicy.Expanding,
                           QtGui.QSizePolicy.Expanding)

        FigureCanvas.updateGeometry(self)
        self.fig.tight_layout()
        self.draw()

    # Update the graph using the given data
    # 'times' should be datetime objects
    # 'power' should be in Watts