Hi Andrew,
if I understand correctly "set_clip_path" is what you want.
The usage was discussed in the following threads, where John Hunter also
proposed the example code added below.
http://www.mailarchive.com/matplotlibusers@.../msg10155.html
http://www.mailarchive.com/matplotlibusers@.../msg08779.html
The only example I found on the web and in the svnexamples about clip_path is
http://matplotlib.sourceforge.net/examples/pylab_examples/image_clip_path.html?highlight=clip_path
For developers: Could it be useful to include John's example in the online
screenshots / gallery or did I miss it?
best regards Matthias
"""
Clipping to arbitrary patches and paths
"""
import numpy as np
import matplotlib.pyplot as plt
import matplotlib.path as path
import matplotlib.patches as patches
fig = plt.figure()
ax = fig.add_subplot(111, frameon=False, xticks=[], yticks=[])
im = ax.imshow(np.random.rand(10,10))
patch = patches.Circle((300,300), radius=100)
im.set_clip_path(patch)
plt.show()
On Wednesday 15 April 2009 09:01:56 Andrew Kelly wrote:
> Hello,I am relatively new to matplotlib but I get the basics. What I need
> to do though is a slightly customized graph area. There are two plots on
> the same graph  a parabola and a straight line (with a negative slope)
> north east of the parabola. This graph has grid lines. Simple enough, but
> now I want to remove the graph area to the right of the line. Think of a
> dogeared page in a book. Basically that top right triangle is gone.
>
> Can I do this in MPL or do I need to do some post processing in PIL? Much
> thanks for any help.
>
> Andrew
