Revision: 8808
http://matplotlib.svn.sourceforge.net/matplotlib/?rev=8808&view=rev
Author: weathergod
Date: 2010-11-22 16:05:17 +0000 (Mon, 22 Nov 2010)
Log Message:
-----------
Fixed a mistake with the Hammer projection in the geo module.
Thanks to Matthias Plum for reporting and Tobias Winchen for confirming.
Modified Paths:
--------------
branches/v1_0_maint/CHANGELOG
branches/v1_0_maint/lib/matplotlib/projections/geo.py
Modified: branches/v1_0_maint/CHANGELOG
===================================================================
--- branches/v1_0_maint/CHANGELOG 2010-11-22 14:01:21 UTC (rev 8807)
+++ branches/v1_0_maint/CHANGELOG 2010-11-22 16:05:17 UTC (rev 8808)
@@ -1,3 +1,5 @@
+2010-11-22 Fixed error with Hammer projection. - BVR
+
2010-11-12 Fixed the placement and angle of axis labels in 3D plots. - BVR
2010-11-07 New rc parameters examples.download and examples.directory
Modified: branches/v1_0_maint/lib/matplotlib/projections/geo.py
===================================================================
--- branches/v1_0_maint/lib/matplotlib/projections/geo.py 2010-11-22
14:01:21 UTC (rev 8807)
+++ branches/v1_0_maint/lib/matplotlib/projections/geo.py 2010-11-22
16:05:17 UTC (rev 8808)
@@ -346,7 +346,7 @@
cos_latitude = np.cos(latitude)
sqrt2 = np.sqrt(2.0)
- alpha = 1.0 + cos_latitude * np.cos(half_long)
+ alpha = np.sqrt(1.0 + cos_latitude * np.cos(half_long))
x = (2.0 * sqrt2) * (cos_latitude * np.sin(half_long)) / alpha
y = (sqrt2 * np.sin(latitude)) / alpha
return np.concatenate((x, y), 1)
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