Revision: 6508
http://matplotlib.svn.sourceforge.net/matplotlib/?rev=6508&view=rev
Author: jswhit
Date: 2008-12-08 12:52:29 +0000 (Mon, 08 Dec 2008)
Log Message:
-----------
lat_ts now defaults to 0 for mercator.
Modified Paths:
--------------
trunk/toolkits/basemap/Changelog
trunk/toolkits/basemap/lib/mpl_toolkits/basemap/__init__.py
Modified: trunk/toolkits/basemap/Changelog
===================================================================
--- trunk/toolkits/basemap/Changelog 2008-12-08 12:44:41 UTC (rev 6507)
+++ trunk/toolkits/basemap/Changelog 2008-12-08 12:52:29 UTC (rev 6508)
@@ -1,4 +1,5 @@
version 0.99.2 (not yet released)
+ * Made lat_ts default to 0 for mercator.
* Now can specify just lon_0 for all cylindrical projections
(to produce global map centered on lon_0).
* Added save_background.py example, showing how to re-use
Modified: trunk/toolkits/basemap/lib/mpl_toolkits/basemap/__init__.py
===================================================================
--- trunk/toolkits/basemap/lib/mpl_toolkits/basemap/__init__.py 2008-12-08
12:44:41 UTC (rev 6507)
+++ trunk/toolkits/basemap/lib/mpl_toolkits/basemap/__init__.py 2008-12-08
12:52:29 UTC (rev 6508)
@@ -261,9 +261,10 @@
================ ====================================================
Keyword Description
================ ====================================================
- lat_ts latitude of true scale.
- optional for stereographic projection.
- mandatory for mercator projection.
+ lat_ts latitude of true scale. Optional for stereographic
+ and mercator projections.
+ default is lat_0 for stereographic projection.
+ default is 0 for mercator projection.
lat_1 first standard parallel for lambert conformal,
albers equal area and equidistant conic.
Latitude of one of the two points on the projection
@@ -285,7 +286,7 @@
not be rotated to true North. Default is False
(projection coordinates are automatically rotated).
lat_0 central latitude (y-axis origin) - used by all
- projections, Must be equator for mercator projection.
+ projections.
lon_0 central meridian (x-axis origin) - used by all
projections.
boundinglat bounding latitude for pole-centered projections
@@ -624,6 +625,10 @@
self.llcrnrlon = llcrnrlon; self.llcrnrlat = llcrnrlat
self.urcrnrlon = urcrnrlon; self.urcrnrlat = urcrnrlat
elif projection in _cylproj:
+ if projection == 'merc':
+ if lat_ts is None:
+ lat_ts = 0.
+ projparams['lat_ts']=lat_ts
if not using_corners:
llcrnrlat = -90.
urcrnrlat = 90.
@@ -634,8 +639,7 @@
llcrnrlon = -180.
urcrnrlon = 180
if projection == 'merc':
- if lat_ts is None:
- raise ValueError, 'must specify lat_ts for Mercator
basemap'
+ if lat_ts is None: lat_ts = 0.
# clip plot region to be within -89.99S to 89.99N
# (mercator is singular at poles)
if llcrnrlat < -89.99: llcrnrlat = -89.99
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