将 canvas 与图形相关联 wxPython
Relating a canvas to a figure wxPython
我想知道如何在 python 中将 matplotlib 图嵌入 wxPython FigureCanvasWxAgg 实例中时执行以下伪代码：
需要使用以下项目：
---- 可以使用的导入 - ---
导入 wx
从matplotlib.figure导入图
从 matplotlib.backends.backend_wxagg 将 FigureCanvasWxAgg 导入为 FigureCanvas
------------------------- ------------------------- -----
main_canvas;
shadow_canvas;
big_plot [其中包含一个大图的 matplotlib 图实例——就像您使用 figure.add_subplots(1,1,1)] 制作的图一样；
small_subplots [一个 matplotlib 图形实例，其中包含 2 个子图——您可以使用 figure.add_subplots(2,1,i)，其中 1< =i<=2]
一个名为 SwapView(main_canvas,shadow_canvas,big_plot,small_subplots) 的函数，它实质上交换了当前位于 shadow_canvas 与 main_canvas 中的那个（所以不断在大地块和小地块之间切换）
一个 UpdateDisplay() 函数，它在您每次调用 SwapView() 时动态更新显示
******* PSEUDOCODE *******
main_canvas.show()
shadow_canvas.hide()
main_canvas has big_plot initially
shadow_canvas has small_subplots initially
if big_plot in main_canvas:
SwapView(...) ---> should put big_plot in shadow_canvas and small_subplots in the main_canvas
else:
SwapView(...) ---> should put the small_subplots in shadow_canvas and the big_plot in main_canvas
UpdateDisplay()
******* END OF CODE *******
这是我对这段代码的初步尝试，不幸的是我找不到找到当前显示的数字的方法。
#!/usr/bin/python
# -*- coding: utf-8 -*-
import numpy as np
import wx
import time
from matplotlib.figure import Figure
from matplotlib.backends.backend_wxagg import FigureCanvasWxAgg as FigureCanvas
class myframe(wx.Frame):
def __init__(self):
wx.Frame.__init__(self,parent = None, id = -1, title = 'LoadFigure()', size = (800,800))
self.figurePanel = FigurePanel(parent = self)
canvas1 = self.figurePanel.canvas
canvas2 = self.figurePanel.enlarged_canvas
fig1 = self.figurePanel.enlarged_figure
fig2 = self.figurePanel.figure
fig1.set_canvas(canvas1) #enlarged_fig resides in canvas1
fig2.set_canvas(canvas2) #fig resides in canvas2
#Show both canvases ---> canvas2 will override canvas1, but when canvas2 hides canvas1 should show
canvas2.Show()
canvas1.Show()
self.Show()
print "Starting to swap displays!"
time.sleep(1)
for i in range(10):
print "run: %d"%i
self.SwapView(big_plot = fig1,small_plots = fig2,main_canvas = canvas1,shadow_canvas = canvas2)
time.sleep(1)
def SwapView(self,big_plot,small_plots,main_canvas,shadow_canvas):
'''
Keep swapping the main_canvas with the shadow_canvas to show either fig1 or fig2.
Initially, big_plot has main_canvas and small_plots have shadow_canvas
'''
wx.Yield()
print list(main_canvas)
print list(big_plot.get_children())
time.sleep(2)
for child in big_plot.get_children():
if child == main_canvas:
print 'big_plot has main_canvas'
big_plot.set_canvas(shadow_canvas)
small_plots.set_canvas(main_canvas)
main_canvas.draw()
wx.Yield()
main_canvas.Show()
else:
print 'big_plot has shadow_canvas'
for child in small_plots.get_children():
if child == main_canvas:
print 'small_plots has main_canvas'
small_plots.set_canvas(shadow_canvas)
big_plot.set_canvas(main_canvas)
main_canvas.draw()
wx.Yield()
main_canvas.Show()
else:
print 'small_plots has shadow_canvas'
class FigurePanel(wx.Panel):
def __init__(self, parent):
wx.Panel.__init__(self, parent)
self.figPanel = self
self.sizer = wx.BoxSizer(wx.VERTICAL)
self.figure = Figure(figsize = (8,6.1), dpi =60)
self.ax = self.figure.add_subplot(1,1,1)
self.ax.plot([1,2,3],[1,2,3])
self.enlarged_figure = Figure(figsize = (8,6.1), dpi = 60)
self.ax1 = self.enlarged_figure.add_subplot(2,1,1)
self.ax2 = self.enlarged_figure.add_subplot(2,1,2)
self.ax1.plot([1,2,3],[1,4,9])
self.ax2.plot([1,2,3],[1,4,9])
self.canvas = FigureCanvas(self, -1, self.figure)
self.enlarged_canvas = FigureCanvas(self,-1,self.enlarged_figure)
self.Layout()
self.Fit()
if __name__ == "__main__":
app = wx.App(False)
fr = myframe()
app.MainLoop()
对于可能需要它的任何人，这是我想出的解决方案：
#!/usr/bin/python
# -*- coding: utf-8 -*-
import numpy as np
import wx
import time
from matplotlib.figure import Figure
from matplotlib.backends.backend_wxagg import FigureCanvasWxAgg as FigureCanvas
class myframe(wx.Frame):
def __init__(self):
wx.Frame.__init__(self,parent = None, id = -1, title = 'SWAP!', size = (480,390))
self.figurePanel = FigurePanel(parent = self)
self.canvas1 = self.figurePanel.canvas
self.canvas2 = self.figurePanel.enlarged_canvas
self.fig1 = self.figurePanel.enlarged_figure
self.fig2 = self.figurePanel.figure
self.fig1.set_canvas(self.canvas1) #enlarged_fig resides in canvas1
self.canvas1.Show()
self.Show()
self.canvas2.mpl_connect("button_release_event",self.OnLoadFigure) #Enable the detection of mouseclicks for the plots in the plotting window
print "Click anywhere on the figure to swap the plots!"
self.display = 1
def OnLoadFigure(self,event = None):
print "Tried to load figure"
if event != None:
self.display = self.SwapView(big_plot = self.fig1 ,small_plots = self.fig2 , display = self.display, main_canvas = self.canvas1 , shadow_canvas = 0)
def SwapView(self,big_plot = None,display = -1, small_plots = None,main_canvas = None,shadow_canvas = None):
'''
Keep swapping the main_canvas with the shadow_canvas to show either fig1 or fig2.
Initially, big_plot has main_canvas and small_plots have shadow_canvas
'''
wx.Yield()
print display
if display == 1: #Show the big plot
print 'big_plot showing'
big_plot.set_canvas(main_canvas)
main_canvas.Show()
time.sleep(0.01) #Fastest time you can pick
wx.Yield()
else:
print 'small_plots showing'
main_canvas.Hide()
wx.Yield()
self.Refresh(canvas = main_canvas)
display = not(display)
return display
def Refresh(self,canvas = None,figure = None):
wx.Yield()
if canvas != None:
print "draw"
canvas.draw()
self.Update()
self.figurePanel.Update()
wx.Yield()
class FigurePanel(wx.Panel):
def __init__(self, parent):
wx.Panel.__init__(self, parent)
self.figPanel = self
self.sizer = wx.BoxSizer(wx.VERTICAL)
self.figure = Figure(figsize = (8,6.1), dpi =60)
self.ax = self.figure.add_subplot(1,1,1)
self.ax.plot([1,2,3],[1,2,3])
self.enlarged_figure = Figure(figsize = (8,6.1), dpi = 60)
self.ax1 = self.enlarged_figure.add_subplot(2,1,1)
self.ax2 = self.enlarged_figure.add_subplot(2,1,2)
self.ax1.plot([1,2,3],[1,4,9])
self.ax2.plot([1,2,3],[1,4,9])
self.canvas = FigureCanvas(self, -1, self.figure)
self.enlarged_canvas = FigureCanvas(self,-1,self.enlarged_figure)
self.Layout()
self.Fit()
if __name__ == "__main__":
app = wx.App(False)
fr = myframe()
app.MainLoop()
要更改显示，请单击该图。
我想知道如何在 python 中将 matplotlib 图嵌入 wxPython FigureCanvasWxAgg 实例中时执行以下伪代码：
需要使用以下项目：
---- 可以使用的导入 - ---
导入 wx
从matplotlib.figure导入图
从 matplotlib.backends.backend_wxagg 将 FigureCanvasWxAgg 导入为 FigureCanvas
------------------------- ------------------------- -----
main_canvas;
shadow_canvas;
big_plot [其中包含一个大图的 matplotlib 图实例——就像您使用 figure.add_subplots(1,1,1)] 制作的图一样；
small_subplots [一个 matplotlib 图形实例，其中包含 2 个子图——您可以使用 figure.add_subplots(2,1,i)，其中 1< =i<=2]
一个名为 SwapView(main_canvas,shadow_canvas,big_plot,small_subplots) 的函数，它实质上交换了当前位于 shadow_canvas 与 main_canvas 中的那个（所以不断在大地块和小地块之间切换）
一个 UpdateDisplay() 函数，它在您每次调用 SwapView() 时动态更新显示
******* PSEUDOCODE ******* main_canvas.show() shadow_canvas.hide() main_canvas has big_plot initially shadow_canvas has small_subplots initially if big_plot in main_canvas: SwapView(...) ---> should put big_plot in shadow_canvas and small_subplots in the main_canvas else: SwapView(...) ---> should put the small_subplots in shadow_canvas and the big_plot in main_canvas UpdateDisplay() ******* END OF CODE *******
这是我对这段代码的初步尝试，不幸的是我找不到找到当前显示的数字的方法。
#!/usr/bin/python
# -*- coding: utf-8 -*-
import numpy as np
import wx
import time
from matplotlib.figure import Figure
from matplotlib.backends.backend_wxagg import FigureCanvasWxAgg as FigureCanvas
class myframe(wx.Frame):
def __init__(self):
wx.Frame.__init__(self,parent = None, id = -1, title = 'LoadFigure()', size = (800,800))
self.figurePanel = FigurePanel(parent = self)
canvas1 = self.figurePanel.canvas
canvas2 = self.figurePanel.enlarged_canvas
fig1 = self.figurePanel.enlarged_figure
fig2 = self.figurePanel.figure
fig1.set_canvas(canvas1) #enlarged_fig resides in canvas1
fig2.set_canvas(canvas2) #fig resides in canvas2
#Show both canvases ---> canvas2 will override canvas1, but when canvas2 hides canvas1 should show
canvas2.Show()
canvas1.Show()
self.Show()
print "Starting to swap displays!"
time.sleep(1)
for i in range(10):
print "run: %d"%i
self.SwapView(big_plot = fig1,small_plots = fig2,main_canvas = canvas1,shadow_canvas = canvas2)
time.sleep(1)
def SwapView(self,big_plot,small_plots,main_canvas,shadow_canvas):
'''
Keep swapping the main_canvas with the shadow_canvas to show either fig1 or fig2.
Initially, big_plot has main_canvas and small_plots have shadow_canvas
'''
wx.Yield()
print list(main_canvas)
print list(big_plot.get_children())
time.sleep(2)
for child in big_plot.get_children():
if child == main_canvas:
print 'big_plot has main_canvas'
big_plot.set_canvas(shadow_canvas)
small_plots.set_canvas(main_canvas)
main_canvas.draw()
wx.Yield()
main_canvas.Show()
else:
print 'big_plot has shadow_canvas'
for child in small_plots.get_children():
if child == main_canvas:
print 'small_plots has main_canvas'
small_plots.set_canvas(shadow_canvas)
big_plot.set_canvas(main_canvas)
main_canvas.draw()
wx.Yield()
main_canvas.Show()
else:
print 'small_plots has shadow_canvas'
class FigurePanel(wx.Panel):
def __init__(self, parent):
wx.Panel.__init__(self, parent)
self.figPanel = self
self.sizer = wx.BoxSizer(wx.VERTICAL)
self.figure = Figure(figsize = (8,6.1), dpi =60)
self.ax = self.figure.add_subplot(1,1,1)
self.ax.plot([1,2,3],[1,2,3])
self.enlarged_figure = Figure(figsize = (8,6.1), dpi = 60)
self.ax1 = self.enlarged_figure.add_subplot(2,1,1)
self.ax2 = self.enlarged_figure.add_subplot(2,1,2)
self.ax1.plot([1,2,3],[1,4,9])
self.ax2.plot([1,2,3],[1,4,9])
self.canvas = FigureCanvas(self, -1, self.figure)
self.enlarged_canvas = FigureCanvas(self,-1,self.enlarged_figure)
self.Layout()
self.Fit()
if __name__ == "__main__":
app = wx.App(False)
fr = myframe()
app.MainLoop()
对于可能需要它的任何人，这是我想出的解决方案：
#!/usr/bin/python
# -*- coding: utf-8 -*-
import numpy as np
import wx
import time
from matplotlib.figure import Figure
from matplotlib.backends.backend_wxagg import FigureCanvasWxAgg as FigureCanvas
class myframe(wx.Frame):
def __init__(self):
wx.Frame.__init__(self,parent = None, id = -1, title = 'SWAP!', size = (480,390))
self.figurePanel = FigurePanel(parent = self)
self.canvas1 = self.figurePanel.canvas
self.canvas2 = self.figurePanel.enlarged_canvas
self.fig1 = self.figurePanel.enlarged_figure
self.fig2 = self.figurePanel.figure
self.fig1.set_canvas(self.canvas1) #enlarged_fig resides in canvas1
self.canvas1.Show()
self.Show()
self.canvas2.mpl_connect("button_release_event",self.OnLoadFigure) #Enable the detection of mouseclicks for the plots in the plotting window
print "Click anywhere on the figure to swap the plots!"
self.display = 1
def OnLoadFigure(self,event = None):
print "Tried to load figure"
if event != None:
self.display = self.SwapView(big_plot = self.fig1 ,small_plots = self.fig2 , display = self.display, main_canvas = self.canvas1 , shadow_canvas = 0)
def SwapView(self,big_plot = None,display = -1, small_plots = None,main_canvas = None,shadow_canvas = None):
'''
Keep swapping the main_canvas with the shadow_canvas to show either fig1 or fig2.
Initially, big_plot has main_canvas and small_plots have shadow_canvas
'''
wx.Yield()
print display
if display == 1: #Show the big plot
print 'big_plot showing'
big_plot.set_canvas(main_canvas)
main_canvas.Show()
time.sleep(0.01) #Fastest time you can pick
wx.Yield()
else:
print 'small_plots showing'
main_canvas.Hide()
wx.Yield()
self.Refresh(canvas = main_canvas)
display = not(display)
return display
def Refresh(self,canvas = None,figure = None):
wx.Yield()
if canvas != None:
print "draw"
canvas.draw()
self.Update()
self.figurePanel.Update()
wx.Yield()
class FigurePanel(wx.Panel):
def __init__(self, parent):
wx.Panel.__init__(self, parent)
self.figPanel = self
self.sizer = wx.BoxSizer(wx.VERTICAL)
self.figure = Figure(figsize = (8,6.1), dpi =60)
self.ax = self.figure.add_subplot(1,1,1)
self.ax.plot([1,2,3],[1,2,3])
self.enlarged_figure = Figure(figsize = (8,6.1), dpi = 60)
self.ax1 = self.enlarged_figure.add_subplot(2,1,1)
self.ax2 = self.enlarged_figure.add_subplot(2,1,2)
self.ax1.plot([1,2,3],[1,4,9])
self.ax2.plot([1,2,3],[1,4,9])
self.canvas = FigureCanvas(self, -1, self.figure)
self.enlarged_canvas = FigureCanvas(self,-1,self.enlarged_figure)
self.Layout()
self.Fit()
if __name__ == "__main__":
app = wx.App(False)
fr = myframe()
app.MainLoop()
要更改显示，请单击该图。