added polar scatter example

jdh2358 · jdh2358 · commit 674f9277e8eb · 2004-10-21T21:23:21.000Z
svn path=/trunk/matplotlib/; revision=611
diff --git a/examples/polar_scatter.py b/examples/polar_scatter.py
@@ -0,0 +1,18 @@
+#!/usr/bin/env python
+# a polar scatter plot; size increases radially in this example and
+# color increases with angle (just to verify the symbols are being
+# scattered correctlu).  In a real example, this would be wasting
+# dimensionlaity of the plot
+from matplotlib.matlab import *
+
+N = 150
+r = 2*rand(N)
+theta = 2*pi*rand(N) 
+area = 200*r**2*rand(N)
+colors = theta
+ax = subplot(111, polar=True)
+c = scatter(theta, r, c=colors, s=area)
+c.set_alpha(0.75)
+
+#savefig('polar_test2')
+show()
