I have two questions about using NavigationToolbar2Wx with mplot3d.


1/  Initially the 3D scatter plot will rotate as usual with a mouse, but after selecting the ‘pan’ or ‘zoom’ buttons the plot responds with some confusion.  How can I restore it to rotation only, i.e. disconnect the zoom or pan behaviour?


2/  When using the ‘save’ button I get different behaviours depending on the backend.  With ‘WXAgg’ the saved png image shows only the axes, not the scatter points.  The scatter points and axes do appear correctly in a pdf file.  Using the ‘WX’ backend gives both scatter points and axes for the png file.


My full application has a mix of 2D and 3D plots (separate notebooks) and it would be preferable for users if all plots could usedthe common toolbar.


I see this behaviour running matplotlib 1.0.1 with Python 2.6.6 and wxPython under Windows XP with the example below.




# adapted from example code "embedding_in_wx2.py"


import numpy as np


import matplotlib


# uncomment the following to use wx rather than wxagg


#from matplotlib.backends.backend_wx import FigureCanvasWx as FigureCanvas


# comment out the following to use wx rather than wxagg


from matplotlib.backends.backend_wxagg import FigureCanvasWxAgg as FigureCanvas


from matplotlib.backends.backend_wx import NavigationToolbar2Wx


from matplotlib.figure import Figure

from mpl_toolkits.mplot3d import Axes3D

import wx


class CanvasFrame(wx.Frame):


    def __init__(self):






        self.figure = Figure()

        self.canvas = FigureCanvas(self, -1, self.figure)

        self.axes = Axes3D(self.figure)       

        xs = np.random.rand(100)

        ys = np.random.rand(100)

        zs = np.random.rand(100)

        self.axes.scatter(xs, ys, zs)

        self.sizer = wx.BoxSizer(wx.VERTICAL)

        self.sizer.Add(self.canvas, 1, wx.LEFT | wx.TOP | wx.GROW)




        self.add_toolbar()  # comment this out for no toolbar



    def add_toolbar(self):

        self.toolbar = NavigationToolbar2Wx(self.canvas)


        if wx.Platform == '__WXMAC__':

            # Mac platform (OSX 10.3, MacPython) does not seem to cope with

            # having a toolbar in a sizer. This work-around gets the buttons

            # back, but at the expense of having the toolbar at the top



            # On Windows platform, default window size is incorrect, so set

            # toolbar width to figure width.

            tw, th = self.toolbar.GetSizeTuple()

            fw, fh = self.canvas.GetSizeTuple()

            # By adding toolbar in sizer, we are able to put it at the bottom

            # of the frame - so appearance is closer to GTK version.

            # As noted above, doesn't work for Mac.

            self.toolbar.SetSize(wx.Size(fw, th))

            self.sizer.Add(self.toolbar, 0, wx.LEFT | wx.EXPAND)

        # update the axes menu on the toolbar




    def OnPaint(self, event):



class App(wx.App):


    def OnInit(self):

        'Create the main window and insert the custom frame'

        frame = CanvasFrame()


        return True


app = App(0)







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