change sun elevation angle.

svn path=/trunk/matplotlib/; revision=6979

Author: Jeff Whitaker

examples/pylab_examples/shading_example.py

@@ -12,7 +12,7 @@
 X,Y=np.mgrid[-5:5:0.1,-5:5:0.1]
 Z=X+np.sin(X**2+Y**2)
 # creat light source object.
-ls = lightsource(azdeg=270,altdeg=20)
+ls = lightsource(azdeg=270,altdeg=60)
 # shade data, creating an rgb array.
 rgb = ls.shade(Z,plt.cm.copper)
 # plot un-shaded and shaded images.