Revision: 8452
http://matplotlib.svn.sourceforge.net/matplotlib/?rev=8452&view=rev
Author: efiring
Date: 2010-06-21 20:53:22 +0000 (Mon, 21 Jun 2010)
Log Message:
-----------
Let pcolor antialiasing default be controlled by patch.antialiasing.
See ticket 3017725. In most cases antialiasing is better than, or
nearly as good as, non-antialiasing. A note about artifacts is now
in the docstring.
Modified Paths:
--------------
trunk/matplotlib/lib/matplotlib/axes.py
Modified: trunk/matplotlib/lib/matplotlib/axes.py
===================================================================
--- trunk/matplotlib/lib/matplotlib/axes.py 2010-06-21 20:37:27 UTC (rev
8451)
+++ trunk/matplotlib/lib/matplotlib/axes.py 2010-06-21 20:53:22 UTC (rev
8452)
@@ -6740,16 +6740,16 @@
*shading*: [ 'flat' | 'faceted' ]
If 'faceted', a black grid is drawn around each rectangle; if
'flat', edges are not drawn. Default is 'flat', contrary to
- Matlab(TM).
+ Matlab.
This kwarg is deprecated; please use 'edgecolors' instead:
- * shading='flat' -- edgecolors='None'
+ * shading='flat' -- edgecolors='none'
* shading='faceted -- edgecolors='k'
- *edgecolors*: [ None | 'None' | color | color sequence]
+ *edgecolors*: [ None | 'none' | color | color sequence]
If *None*, the rc setting is used by default.
- If 'None', edges will not be visible.
+ If 'none', edges will not be visible.
An mpl color or sequence of colors will set the edge color
@@ -6805,6 +6805,16 @@
:class:`~matplotlib.collection.PolyCollection` properties:
%(PolyCollection)s
+
+ Note: the default *antialiaseds* is taken from
+ rcParams['patch.antialiased'], which defaults to *True*.
+ In some cases, particularly if *alpha* is 1,
+ you may be able to reduce rendering artifacts (light or
+ dark patch boundaries) by setting it to *False*. An
+ alternative it to set *edgecolors* to 'face'. Unfortunately,
+ there seems to be no single combination of parameters that
+ eliminates artifacts under all conditions.
+
"""
if not self._hold: self.cla()
@@ -6850,19 +6860,22 @@
axis=1)
verts = xy.reshape((npoly, 5, 2))
- #verts = zip(zip(X1,Y1),zip(X2,Y2),zip(X3,Y3),zip(X4,Y4))
-
C = compress(ravelmask, ma.filled(C[0:Ny-1,0:Nx-1]).ravel())
-
if shading == 'faceted':
- edgecolors = (0,0,0,1),
- linewidths = (0.25,)
+ edgecolors = 'k',
else:
- edgecolors = 'face'
- linewidths = (1.0,)
+ edgecolors = 'none'
+ linewidths = (0.25,)
+ # Not sure if we want to have the following, or just trap
+ # invalid kwargs and raise an exception.
+ if 'edgecolor' in kwargs:
+ kwargs['edgecolors'] = kwargs.pop('edgecolor')
+ if 'linewidth' in kwargs:
+ kwargs['linewidths'] = kwargs.pop('linewidth')
+ if 'antialiased' in kwargs:
+ kwargs['antialiaseds'] = kwargs.pop('antialiased')
kwargs.setdefault('edgecolors', edgecolors)
- kwargs.setdefault('antialiaseds', (0,))
kwargs.setdefault('linewidths', linewidths)
collection = mcoll.PolyCollection(verts, **kwargs)
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