Fix bug with pie chart slices less than 2.5 degrees.

mdboom · mdboom · commit 966e63157a4c · 2008-01-21T19:03:48.000Z
svn path=/branches/v0_91_maint/; revision=4882
diff --git a/lib/matplotlib/patches.py b/lib/matplotlib/patches.py
@@ -526,7 +526,9 @@ def __init__(self, center, r, theta1, theta2,
         theta1 = float(theta1)
         theta2 = float(theta2)
         dtheta = float(dtheta)
-        num_points = abs(theta2 - theta1) / dtheta
+        num_points = (abs(theta2 - theta1) / dtheta)
+        if num_points < 2.0:
+            num_points = 2.0
         rads = (npy.pi/180.) * npy.linspace(theta1, theta2, num_points, endpoint=True)
         xs = r*npy.cos(rads)+xc
         ys = r*npy.sin(rads)+yc
