Revision: 6722
http://matplotlib.svn.sourceforge.net/matplotlib/?rev=6722&view=rev
Author: jswhit
Date: 2008-12-31 17:00:34 +0000 (Wed, 31 Dec 2008)
Log Message:
-----------
add some comments
Modified Paths:
--------------
trunk/toolkits/basemap/lib/mpl_toolkits/basemap/proj.py
Modified: trunk/toolkits/basemap/lib/mpl_toolkits/basemap/proj.py
===================================================================
--- trunk/toolkits/basemap/lib/mpl_toolkits/basemap/proj.py 2008-12-31
16:29:37 UTC (rev 6721)
+++ trunk/toolkits/basemap/lib/mpl_toolkits/basemap/proj.py 2008-12-31
17:00:34 UTC (rev 6722)
@@ -96,13 +96,17 @@
urcrnrlat == 90):
self._fulldisk = True
self._proj4 = pyproj.Proj(projparams)
+ # raise an exception for ellipsoids - there appears to be a bug
+ # in proj4 that causes the inverse transform to fail for points
+ # more than 90 degrees of arc away from center point for ellipsoids
+ # (works fine for spheres)
if self.ellipsoid:
msg = dedent("""
full disk (whole world) Azimuthal Equidistant projection can
only be drawn for a perfect sphere""")
raise ValueError(msg)
- llcrnrx = -np.pi*self.rminor
- llcrnry = -np.pi*self.rminor
+ llcrnrx = -np.pi*self.rmajor
+ llcrnry = -np.pi*self.rmajor
self._width = -llcrnrx
self._height = -llcrnry
urcrnrx = -llcrnrx
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