python - Relating a canvas to a figure wxPython -
i know how perform following pseudocode in python when embedding matplotlib figure inside of wxpython figurecanvaswxagg instance:
the following items need used:
---- imports can used ----
import wx
from matplotlib.figure import figure
from matplotlib.backends.backend_wxagg import figurecanvaswxagg figurecanvas
-------------------------------------------------------
main_canvas;
shadow_canvas;
big_plot [a matplotlib figure instance 1 big plot in -- 1 make figure.add_subplots(1,1,1)];
small_subplots [a matplotlib figure instance with, say, 2 subplots in -- make figure.add_subplots(2,1,i), 1<=i<=2]
a function called swapview(main_canvas,shadow_canvas,big_plot,small_subplots) swaps figure in shadow_canvas 1 in main_canvas (so keep switching between 1 big plot , 1 many small plots)
a function updatedisplay() dynamically updates display every time call swapview()
******* pseudocode ******* main_canvas.show() shadow_canvas.hide() main_canvas has big_plot shadow_canvas has small_subplots if big_plot in main_canvas: swapview(...) ---> should put big_plot in shadow_canvas , small_subplots in main_canvas else: swapview(...) ---> should put small_subplots in shadow_canvas , big_plot in main_canvas updatedisplay() ******* end of code *******
here initial attempt @ code , unfortunately can't find way find figure 1 displayed.
#!/usr/bin/python # -*- coding: utf-8 -*- import numpy np import wx import time matplotlib.figure import figure matplotlib.backends.backend_wxagg import figurecanvaswxagg 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 override canvas1, when canvas2 hides canvas1 should show canvas2.show() canvas1.show() self.show() print "starting swap displays!" time.sleep(1) 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 main_canvas shadow_canvas show either fig1 or fig2. initially, big_plot has main_canvas , small_plots have shadow_canvas ''' wx.yield() print list(main_canvas) print list(big_plot.get_children()) time.sleep(2) 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' 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()
for might need it, here's solution came with:
#!/usr/bin/python # -*- coding: utf-8 -*- import numpy np import wx import time matplotlib.figure import figure matplotlib.backends.backend_wxagg import figurecanvaswxagg 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 detection of mouseclicks plots in plotting window print "click anywhere on figure swap plots!" self.display = 1 def onloadfigure(self,event = none): print "tried 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 main_canvas shadow_canvas show either fig1 or fig2. initially, big_plot has main_canvas , small_plots have shadow_canvas ''' wx.yield() print display if display == 1: #show big plot print 'big_plot showing' big_plot.set_canvas(main_canvas) main_canvas.show() time.sleep(0.01) #fastest time 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() to make display change, click on figure.
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