From: ouv <ouv@opencascade.com>
Date: Thu, 13 May 2010 08:16:24 +0000 (+0000)
Subject: Minor fix (to avoid SIGFPE during picking of Gauss Points presentation with null... 
X-Git-Tag: V5_1_4~2
X-Git-Url: http://git.salome-platform.org/gitweb/?a=commitdiff_plain;h=8eb3ece317b546887394c0aa55a45d3668a71d84;p=modules%2Fvisu.git

Minor fix (to avoid SIGFPE during picking of Gauss Points presentation with null length scalar range)
---

diff --git a/src/PIPELINE/VISU_GaussPointsPL.cxx b/src/PIPELINE/VISU_GaussPointsPL.cxx
index 43887c4f..06c33ffc 100644
--- a/src/PIPELINE/VISU_GaussPointsPL.cxx
+++ b/src/PIPELINE/VISU_GaussPointsPL.cxx
@@ -678,6 +678,10 @@ VISU_GaussPointsPL
   vtkFloatingPointType* aScalarRange = GetScalarRange();
   vtkFloatingPointType aDeltaScalarRange = aScalarRange[1] - aScalarRange[0];
 
+  // to avoid FPE if the minimum is equal to maximum
+  if( aDeltaScalarRange < 1.0 / VTK_LARGE_FLOAT )
+    return aMinSize;
+
   return aMinSize + aDelta*(aVal - aScalarRange[0]) / aDeltaScalarRange;
 }