Cleanup and move polar scatter demo

Author: tonysyu

examples/pie_and_polar_charts/polar_scatter_demo.py

@@ -0,0 +1,21 @@
+"""
+Demo of scatter plot on a polar axis.
+
+Size increases radially in this example and color increases with angle (just to
+verify the symbols are being scattered correctly).
+"""
+import numpy as np
+import matplotlib.pyplot as plt
+
+
+N = 150
+r = 2 * np.random.rand(N)
+theta = 2 * np.pi * np.random.rand(N)
+area = 200 * r**2 * np.random.rand(N)
+colors = theta
+
+ax = plt.subplot(111, polar=True)
+c = plt.scatter(theta, r, c=colors, s=area, cmap=plt.cm.hsv)
+c.set_alpha(0.75)
+
+plt.show()

examples/pylab_examples/polar_scatter.py

@@ -74,6 +74,7 @@
 files['pie'] = [
     'pie_demo.py',
     'polar_bar_demo.py',
+    'polar_scatter_demo.py',
     ]
 
 files['text_labels_and_annotations'] = [
@@ -210,7 +211,6 @@
     'plotfile_demo.py',
     'polar_demo.py',
     'polar_legend.py',
-    'polar_scatter.py',
     'poormans_contour.py',
     'psd_demo.py',
     'psd_demo2.py',

examples/tests/backend_driver.py

@@ -804,7 +804,7 @@ def subplot(*args, **kwargs):
             For additional information on :func:`axes` and
             :func:`subplot` keyword arguments.
 
-        :file:`examples/pylab_examples/polar_scatter.py`
+        :file:`examples/pie_and_polar_charts/polar_scatter_demo.py`
             For an example
 
     **Example:**