SF.net SVN: matplotlib:[5862] trunk/toolkits/basemap/lib/mpl_toolkits/ basemap/__init__.py

[<js...@us...>]

Revision: 5862
          http://matplotlib.svn.sourceforge.net/matplotlib/?rev=5862&view=rev
Author:   jswhit
Date:     2008-07-25 02:40:12 +0000 (Fri, 25 Jul 2008)

Log Message:
-----------
flip wind barbs for points in SH according to meterological convention.

Modified Paths:
--------------
    trunk/toolkits/basemap/lib/mpl_toolkits/basemap/__init__.py

Modified: trunk/toolkits/basemap/lib/mpl_toolkits/basemap/__init__.py
===================================================================
--- trunk/toolkits/basemap/lib/mpl_toolkits/basemap/__init__.py	2008-07-25 01:43:43 UTC (rev 5861)
+++ trunk/toolkits/basemap/lib/mpl_toolkits/basemap/__init__.py	2008-07-25 02:40:12 UTC (rev 5862)
@@ -2914,8 +2914,15 @@
         h = kwargs.pop('hold',None)
         if h is not None:
             ax.hold(h)
+        lons, lats = self(x, y, inverse=True)
+        unh = ma.masked_where(lats <= 0, u)
+        vnh = ma.masked_where(lats <= 0, v)
+        ush = ma.masked_where(lats > 0, u)
+        vsh = ma.masked_where(lats > 0, v)
         try:
-            ret =  ax.barbs(x,y,u,v,*args,**kwargs)
+            retnh =  ax.barbs(x,y,unh,vnh,*args,**kwargs)
+            kwargs['flip_barb']=True
+            retsh =  ax.barbs(x,y,ush,vsh,*args,**kwargs)
             try:
                 plt.draw_if_interactive()
             except:
@@ -2926,7 +2933,7 @@
         ax.hold(b)
         # set axes limits to fit map region.
         self.set_axes_limits(ax=ax)
-        return ret
+        return retnh,retsh
 
     def drawlsmask(self,rgba_land,rgba_ocean,lsmask=None,
                    lsmask_lons=None,lsmask_lats=None,lakes=False,**kwargs):


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