[matplotlib-devel] contains methods

[Paul K. <pki...@ni...>]

Hi,

I fixed some of the contains() methods so at least the simple
cases work.

Degenerate rectangles cause problems in axes_demo:

>>> import matplotlib.patches
>>> r = matplotlib.patches.Rectangle((0,0),1,0)   
>>> r.get_transform().inverted()
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/site-packages/matplotlib/transforms.py", line 1338, in inverted
    self._inverted = Affine2D(inv(mtx))
  File "/Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/site-packages/numpy-1.1.0-py2.5-macosx-10.3-fat.egg/numpy/linalg/linalg.py", line 332, in inv
    return wrap(solve(a, identity(a.shape[0], dtype=a.dtype)))
  File "/Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/site-packages/numpy-1.1.0-py2.5-macosx-10.3-fat.egg/numpy/linalg/linalg.py", line 235, in solve
    raise LinAlgError, 'Singular matrix'
numpy.linalg.linalg.LinAlgError: Singular matrix

I've only gone through the a*.py samples, but there are a few other glitches
such as not detecting axhline/axvline, not handling rotated text properly,
and not doing very well on polar plots.  These will have to wait for another
release.

	- Paul