Revision: 7562
http://matplotlib.svn.sourceforge.net/matplotlib/?rev=7562&view=rev
Author: jswhit
Date: 2009-08-24 22:45:15 +0000 (Mon, 24 Aug 2009)
Log Message:
-----------
add zorder keyword to nightshade
Modified Paths:
--------------
trunk/toolkits/basemap/examples/daynight.py
Modified: trunk/toolkits/basemap/examples/daynight.py
===================================================================
--- trunk/toolkits/basemap/examples/daynight.py 2009-08-24 22:34:25 UTC (rev
7561)
+++ trunk/toolkits/basemap/examples/daynight.py 2009-08-24 22:45:15 UTC (rev
7562)
@@ -64,14 +64,22 @@
return lons2,lats2,daynight
class Basemap2(Basemap):
- def nightshade(self,color="0.5",nlons=1441,alpha=0.5):
+ def nightshade(self,color="0.5",nlons=1441,alpha=0.5,zorder=None):
# create grid of day=0, night=1
# 1441 means use a 0.25 degree grid.
lons,lats,daynight = daynightgrid(d,nlons)
x,y = self(lons,lats)
# contour the day-night grid, coloring the night area
# with the specified color and transparency.
- return map.contourf(x,y,daynight,1,colors=[color],alpha=alpha)
+ CS = map.contourf(x,y,daynight,1,colors=[color],alpha=alpha)
+ # set zorder on ContourSet collections show night shading
+ # is on top.
+ for c in CS.collections:
+ if zorder is None:
+ c.set_zorder(c.get_zorder()+1)
+ else:
+ c.set_zorder(zorder)
+ return CS
# current time in UTC.
d = datetime.utcnow()
@@ -84,9 +92,9 @@
map.drawmeridians(np.arange(-180,180,60),labels=[0,0,0,1])
# fill continents 'coral' (with zorder=0), color wet areas 'aqua'
map.drawmapboundary(fill_color='aqua')
-map.fillcontinents(color='coral',lake_color='aqua',zorder=0)
+map.fillcontinents(color='coral',lake_color='aqua')
# shade the night areas gray, with alpha transparency so the
# map shows through.
-map.nightshade(color="0.5",nlons=1441,alpha=0.5)
+CS=map.nightshade()
plt.title('Day/Night Map for %s (UTC)' %d )
plt.show()
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