Revision: 7260
http://matplotlib.svn.sourceforge.net/matplotlib/?rev=7260&view=rev
Author: heeres
Date: 2009-07-14 21:11:53 +0000 (Tue, 14 Jul 2009)
Log Message:
-----------
Fix mplot3d bug with empty lists
thanks to Ryan Wagner.
Modified Paths:
--------------
trunk/matplotlib/lib/mpl_toolkits/mplot3d/axes3d.py
Modified: trunk/matplotlib/lib/mpl_toolkits/mplot3d/axes3d.py
===================================================================
--- trunk/matplotlib/lib/mpl_toolkits/mplot3d/axes3d.py 2009-07-14 19:21:47 UTC
(rev 7259)
+++ trunk/matplotlib/lib/mpl_toolkits/mplot3d/axes3d.py 2009-07-14 21:11:53 UTC
(rev 7260)
@@ -633,11 +633,14 @@
shade = np.array(shade)
mask = ~np.isnan(shade)
- norm = Normalize(min(shade[mask]), max(shade[mask]))
- color = color.copy()
- color[3] = 1
- colors = [color * (0.5 + norm(v) * 0.5) for v in shade]
+ if len(shade[mask]) > 0:
+ norm = Normalize(min(shade[mask]), max(shade[mask]))
+ color = color.copy()
+ color[3] = 1
+ colors = [color * (0.5 + norm(v) * 0.5) for v in shade]
+ else:
+ colors = color.copy()
return colors
@@ -707,6 +710,12 @@
polyverts = []
normals = []
nsteps = round(len(topverts[0]) / stride)
+ if nsteps <= 1:
+ if len(topverts[0]) > 1:
+ nsteps = 2
+ else:
+ continue
+
stepsize = (len(topverts[0]) - 1) / (nsteps - 1)
for i in range(int(round(nsteps)) - 1):
i1 = int(round(i * stepsize))
@@ -719,11 +728,11 @@
v1 = np.array(topverts[0][i1]) - np.array(topverts[0][i2])
v2 = np.array(topverts[0][i1]) - np.array(botverts[0][i1])
normals.append(np.cross(v1, v2))
-
+
colors = self._shade_colors(color, normals)
colors2 = self._shade_colors(color, normals)
polycol = art3d.Poly3DCollection(polyverts, facecolors=colors,
- edgecolors=colors2)
+ edgecolors=colors2)
self.add_collection3d(polycol)
for col in colls:
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