Question

我有两个带有2个矩形的面板，它们在同一区域上同时移动。我想通过只单击第一个面板中的矩形并在2上自动显示缩放后，在两个面板上可视化所选区域。在其他面板上，单击矩形可以可视化相同区域，但仅用于第一个绘图当我选择区域并单击第一个矩形时，如何同时绘制2个图的缩放比例我该怎么做

该示例代码：

import wx
from numpy import arange, sin, pi,cos
import numpy as np
from matplotlib.backends.backend_wxagg import FigureCanvasWxAgg as FigureCanvas
from matplotlib.widgets import RectangleSelector
from matplotlib.figure import Figure

class MainFrame(wx.Frame):
    def __init__(self, parent ):
        wx.Panel.__init__(self, parent,name="Main", size = (600,800))
        self.Top = PanelTop(self)
        self.Bottom = PanelBottom(self)

        sizer = wx.BoxSizer(wx.VERTICAL)
        sizer.Add(self.Top, 1,wx.EXPAND)
        sizer.Add(self.Bottom, 1,wx.EXPAND)

        self.SetSizer(sizer)



class PanelTop(wx.Panel):
    def __init__(self,parent):
        super().__init__(parent)
        panel = wx.Panel(self)
        self.zoom_panel = Zoom(parent=self)
        self.canvas_panel = CanvasPanel(self)
        canvas_sizer = wx.BoxSizer(wx.HORIZONTAL)
        canvas_sizer.Add(self.canvas_panel,1,wx.EXPAND)
        canvas_sizer.Add(self.zoom_panel,1,wx.EXPAND)
        sizer = wx.BoxSizer(wx.VERTICAL)
        sizer.Add(panel)
        sizer.Add(canvas_sizer)
        self.SetSizerAndFit(sizer)
        self.Show()
class CanvasPanel(wx.Panel):
    """ Panel du graphique matplotlib """
    def __init__(self, parent , size=(200,250)):
        super().__init__(parent)
        self.figure = Figure(figsize =(4,3))
        self.canvas = FigureCanvas(self, -1, self.figure)
        self.axes = self.figure.add_subplot(111)
        self.Size = self.canvas.Size
        self.parent = parent


        t = arange(0.5, 3.0, 0.01)
        s = cos(2 * pi * t)
        self.axes.plot(t, s)

        self.RS = RectangleSelector(self.axes,self.line_select_callback,
                                       drawtype='box', useblit=False,
                                       button=[1, 3],minspanx=1, minspany=1,
                                       spancoords='pixels',
                                       interactive=True , rectprops = dict(facecolor='None',edgecolor='green',alpha=5,fill=False))
        self.RS.to_draw.set_visible(True)
        self.RS.extents = (1,0.1,1,0.1)



    def line_select_callback(self, eclick, erelease):
        x1, y1 = eclick.xdata, eclick.ydata
        x2, y2 = erelease.xdata, erelease.ydata
        self.zoom_axes=[x1,x2,y1,y2]
        self.parent.zoom_panel.Update(self)
        rect = self.RS.artists[0] # Rectangle artist
        slave_rect = self.GrandParent.Bottom.RS.artists[0] # Rectangle artist
        slave_canvas = self.GrandParent.Bottom.canvas

        slave_rect.set_x(x1)
        slave_rect.set_y(y1)
        slave_rect.set_width(x2-x1)
        slave_rect.set_height(y2-y1)
        slave_rect.update(dict(facecolor='None',edgecolor='green',alpha=5,fill=False))
        slave_rect.set_visible(True)
        slave_canvas.draw()
        self.zoom_axes=[x1,x2,y1,y2]
        self.parent.zoom_panel.Update(self)


class Zoom(wx.Panel):
    def __init__(self,parent):
        wx.Panel.__init__(self,parent,size=(200,250))
        self.Show()

    def Update(self,parent):
        zoom_axes=parent.zoom_axes

        self.figure = Figure(figsize =(4,3))
        self.canvas = FigureCanvas(self, -1, self.figure)
        self.axes = self.figure.add_subplot(111)

        self.axes.axis(zoom_axes)

        t = arange(0.5, 3.0, 0.01)
        s = cos(2 * pi * t)
        self.axes.plot(t, s)

        self.canvas.draw()
        self.Refresh()        

class PanelBottom(wx.Panel):
    def __init__(self,parent):
        super().__init__( parent, name = "Bottom", size = (300,300))
        self.SetBackgroundColour('grey77')
        self.figure = Figure(figsize = (4,5))
        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 )
        self.SetSizer(self.sizer)
        t = arange(0.5, 3.0, 0.01)
        s = cos(5 * pi * t)
        self.axes.plot(t, s)



        self.RS = RectangleSelector(self.axes,self.line_select_callback,
                                       drawtype='box', useblit=False,
                                       button=[1, 3],minspanx=1, minspany=1,
                                       spancoords='pixels',
                                       interactive=False, rectprops = dict(facecolor='None',edgecolor='green',alpha=5,fill=False))
        self.RS.to_draw.set_visible(True)
        self.RS.extents = (1,0,0,1)

    def line_select_callback(self, eclick, erelease):
        x1, y1 = eclick.xdata, eclick.ydata
        x2, y2 = erelease.xdata, erelease.ydata





app = wx.App()
frame = MainFrame(None).Show()
app.MainLoop()

如何在其他面板上同时用2个矩形可视化区域选择wxpython4

0 个答案: