SF.net SVN: matplotlib:[7899] trunk/matplotlib/lib/matplotlib/backends/ backend_pdf.py

[<jo...@us...>]

Revision: 7899
          http://matplotlib.svn.sourceforge.net/matplotlib/?rev=7899&view=rev
Author:   jouni
Date:     2009-10-21 18:41:35 +0000 (Wed, 21 Oct 2009)

Log Message:
-----------
Raise an error in the pdf backend instead of outputting an invalid path if a Path object lacks initial moveto

Modified Paths:
--------------
    trunk/matplotlib/lib/matplotlib/backends/backend_pdf.py

Modified: trunk/matplotlib/lib/matplotlib/backends/backend_pdf.py
===================================================================
--- trunk/matplotlib/lib/matplotlib/backends/backend_pdf.py	2009-10-21 18:09:45 UTC (rev 7898)
+++ trunk/matplotlib/lib/matplotlib/backends/backend_pdf.py	2009-10-21 18:41:35 UTC (rev 7899)
@@ -1206,8 +1206,12 @@
         last_points = None
         for points, code in path.iter_segments(transform, clip=clip):
             if code == Path.MOVETO:
+                # This is allowed anywhere in the path
                 cmds.extend(points)
                 cmds.append(Op.moveto)
+            elif last_points is None:
+                # The other operations require a previous point
+                raise ValueError, 'Path lacks initial MOVETO'
             elif code == Path.LINETO:
                 cmds.extend(points)
                 cmds.append(Op.lineto)


This was sent by the SourceForge.net collaborative development platform, the world's largest Open Source development site.