SF.net SVN: matplotlib:[6399] trunk/matplotlib/src/_path.cpp

[<md...@us...>]

Revision: 6399
          http://matplotlib.svn.sourceforge.net/matplotlib/?rev=6399&view=rev
Author:   mdboom
Date:     2008-11-12 20:00:11 +0000 (Wed, 12 Nov 2008)

Log Message:
-----------
Add comment about minimum positive values.

Modified Paths:
--------------
    trunk/matplotlib/src/_path.cpp

Modified: trunk/matplotlib/src/_path.cpp
===================================================================
--- trunk/matplotlib/src/_path.cpp	2008-11-11 22:02:34 UTC (rev 6398)
+++ trunk/matplotlib/src/_path.cpp	2008-11-12 20:00:11 UTC (rev 6399)
@@ -289,6 +289,8 @@
         if (y < *y0) *y0 = y;
         if (x > *x1) *x1 = x;
         if (y > *y1) *y1 = y;
+        /* xm and ym are the minimum positive values in the data, used
+           by log scaling */
         if (x > 0.0 && x < *xm) *xm = x;
         if (y > 0.0 && y < *ym) *ym = y;
     }
@@ -317,6 +319,8 @@
         extents_data[1] = std::numeric_limits<double>::infinity();
         extents_data[2] = -std::numeric_limits<double>::infinity();
         extents_data[3] = -std::numeric_limits<double>::infinity();
+        /* xm and ym are the minimum positive values in the data, used
+           by log scaling */
         xm = std::numeric_limits<double>::infinity();
         ym = std::numeric_limits<double>::infinity();
 


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