SF.net SVN: matplotlib:[5871] trunk/toolkits/basemap/examples/barb_demo.py

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

Revision: 5871
          http://matplotlib.svn.sourceforge.net/matplotlib/?rev=5871&view=rev
Author:   jswhit
Date:     2008-07-25 11:57:39 +0000 (Fri, 25 Jul 2008)

Log Message:
-----------
update barb_demo comments.

Modified Paths:
--------------
    trunk/toolkits/basemap/examples/barb_demo.py

Modified: trunk/toolkits/basemap/examples/barb_demo.py
===================================================================
--- trunk/toolkits/basemap/examples/barb_demo.py	2008-07-25 11:54:44 UTC (rev 5870)
+++ trunk/toolkits/basemap/examples/barb_demo.py	2008-07-25 11:57:39 UTC (rev 5871)
@@ -53,6 +53,8 @@
 plt.title('Surface Wind Barbs and Pressure (NH)')
 
 # stereogrpaphic projection (SH).
+# 'flip_barb' flag is automatically set for SH data, so that
+# barbs point toward lower pressure (in both Hemisphere).
 m = Basemap(width=10000000,height=10000000,lon_0=-90,lat_0=-45.,lat_ts=-45,
             resolution='l',projection='stere')
 x,y = m(lons,lats)
@@ -68,7 +70,8 @@
 cs1 = m.contour(x,y,p,levs,colors='k',linewidths=0.5)
 cs2 = m.contourf(x,y,p,levs)
 # plot barbs.
-m.barbs(xv,yv,udat,vdat,length=6,barbcolor='k',flagcolor='r',linewidth=0.5)
+nh,sh=m.barbs(xv,yv,udat,vdat,length=6,barbcolor='k',flagcolor='r',linewidth=0.5)
+print dir(nh)
 # plot colorbar for pressure
 cax = plt.axes([0.875, 0.1, 0.05, 0.8]) # setup colorbar axes.
 plt.colorbar(cax=cax) # draw colorbar


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