Revision: 6172
          http://matplotlib.svn.sourceforge.net/matplotlib/?rev=6172&view=rev
Author:   mdboom
Date:     2008-10-08 18:16:49 +0000 (Wed, 08 Oct 2008)

Log Message:
-----------
More informative error message when data is too large for Agg to draw it.

Modified Paths:
--------------
    trunk/matplotlib/agg24/include/agg_rasterizer_cells_aa.h

Modified: trunk/matplotlib/agg24/include/agg_rasterizer_cells_aa.h
===================================================================
--- trunk/matplotlib/agg24/include/agg_rasterizer_cells_aa.h    2008-10-08 
16:37:15 UTC (rev 6171)
+++ trunk/matplotlib/agg24/include/agg_rasterizer_cells_aa.h    2008-10-08 
18:16:49 UTC (rev 6172)
@@ -185,7 +185,10 @@
             if((m_num_cells & cell_block_mask) == 0)
             {
                 if(m_num_blocks >= cell_block_limit) {
-                    throw "Agg rendering complexity exceeded.";
+                    /* If this exception is thrown too often, one can
+                       increase cell_block_limit */
+                    throw "Agg rendering complexity exceeded. "
+                        "Consider downsampling or decimating your data.";
                 }
                 allocate_block();
             }


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