__init__(self, fig)#调用基类的初始化函数
self.setParent(parent)
self.update_figure()
FigureCanvasQTAgg.updateGeometry...清除已绘的图形
self.axes.scatter(x,y, marker ='*',c=np.random.rand(len(x)), cmap = "jet")
self.draw...__init__(self, fig)#调用基类的初始化函数
self.setParent(parent)
#尺寸缩放策略
FigureCanvas.setSizePolicy...(self)
def compute_initial_figure(self):
pass #再次被继承时被同名方法覆盖,所有这里可为pass
#再继承第一个自定义画布控件类
class...range(4)]
self.axes.cla()#清除已绘的图形
self.axes.plot([0, 1, 2, 3], l, 'r')
self.draw