Hello List, I found a problem that masked "pcolorfast" does not work properly in zooming, It seems that masked area is not refreshed after zooming on "WXAgg". I think "pcolorfast" works well on pylab.plot though.
"pcolormesh" is the same while "pcolor"acts appropriately, Please look at the attached picture and try the sample program. My environment is; Windows XP Python 2.4 WxPython 2.8 matplotlib 0.91.2 Noriko Minakawa
<<attachment: AfterZoom.JPG>>
#!/usr/bin/env python
import numpy as npy
import matplotlib.numerix as nx
import matplotlib.numerix.ma as ma
from matplotlib import cm, colors
import matplotlib
matplotlib.use('WXAgg')
from matplotlib.backends.backend_wxagg import FigureCanvasWxAgg as FigureCanvas
from matplotlib.backends.backend_wx import NavigationToolbar2Wx
from matplotlib.figure import Figure
import wx
class CanvasFrame(wx.Frame):
def __init__(self):
wx.Frame.__init__(self,None,-1,
'CanvasFrame',size=(550,350))
# self.SetBackgroundColour(wx.NamedColor("WHITE"))
self.figure = Figure()
ax1 = self.figure.add_subplot(121)
ax2 = self.figure.add_subplot(122)
x = npy.arange(0, 4.0, 0.05, dtype=float)
y = npy.arange(0, 5.0, 0.05, dtype=float)
z = npy.sqrt(x[npy.newaxis,:-1]**2 + y[:-1,npy.newaxis]**2)
Z = ma.masked_where(z < 1, z)
X, Y = npy.meshgrid(x,y)
ax1.pcolor(X,Y,Z)
ax2.pcolorfast(X,Y,Z)
ax1.set_title('pcolor')
ax2.set_title('pcolorfast')
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()
self.add_toolbar() # comment this out for no toolbar
def add_toolbar(self):
self.toolbar = NavigationToolbar2Wx(self.canvas)
self.toolbar.Realize()
tw, th = self.toolbar.GetSizeTuple()
fw, fh = self.canvas.GetSizeTuple()
self.toolbar.SetSize(wx.Size(fw, th))
self.sizer.Add(self.toolbar, 0, wx.LEFT | wx.EXPAND)
# update the axes menu on the toolbar
self.toolbar.update()
def OnPaint(self, event):
self.canvas.draw()
class App(wx.App):
def OnInit(self):
'Create the main window and insert the custom frame'
frame = CanvasFrame()
frame.Show(True)
return True
app = App(0)
app.MainLoop()
------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/
_______________________________________________ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
