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draw()我想在每个操作上绘制一个新图形。我拼凑了用于绘制静态图形的代码,该图形在创建对象后永远不会更新。但我希望能够在呈现新数据时重绘。

我如何构建我的代码来做可重绘的数字?


这是有问题的代码,它只绘制一次:

from numpy import arange, sin, pi
import matplotlib
matplotlib.use('WXAgg')

from matplotlib.backends.backend_wxagg import FigureCanvasWxAgg as FigureCanvas
from matplotlib.backends.backend_wx import NavigationToolbar2Wx

class CanvasPanel(wx.Panel):
    def __init__(self, parent):
        wx.Panel.__init__(self, parent)
        #self.size = (800, 50)
        self.figure = Figure()
        self.figure.set_size_inches( (8,1) )
        self.figure.set_dpi(80)
        #self.axes = self.figure.add_subplot(111)
        self.canvas = FigureCanvas(self, -1, self.figure )
        self.sizer = wx.BoxSizer(wx.VERTICAL)
        self.sizer.Add(self.canvas, 1, wx.LEFT | wx.TOP | wx.GROW)
        self.SetSizer(self.sizer)
        self.Fit()

    def draw(self):
        self.axes = self.figure.add_subplot(111)
        t = arange(0.0, 3.0, 0.01)
        s = sin(2 * pi * t)
        self.axes.plot(t, s)
        #time.sleep(5)
        #self.figure.clear()
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1 回答 1

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正如@acattle 在他的评论中所建议的那样,您所要做的就是在更新绘图后将这些行添加到您的绘图子程序中:

 self.canvas.draw()
 self.canvas.Refresh()
于 2013-04-25T06:26:10.343 回答