From: mzn <mzn@opencascade.com>
Date: Fri, 26 Aug 2005 12:05:18 +0000 (+0000)
Subject: Fix for problem: SIGFPE at cut lines edition.
X-Git-Tag: T_3_0_2a1~5
X-Git-Url: http://git.salome-platform.org/gitweb/?a=commitdiff_plain;h=461494706f0eee1b78db219c8b841ba5b80c2458;p=modules%2Fvisu.git

Fix for problem: SIGFPE at cut lines edition.
---

diff --git a/src/VISU_I/VISU_CutLines_i.cc b/src/VISU_I/VISU_CutLines_i.cc
index f2ee138e..d542b221 100644
--- a/src/VISU_I/VISU_CutLines_i.cc
+++ b/src/VISU_I/VISU_CutLines_i.cc
@@ -36,6 +36,8 @@
 using namespace VISU;
 using namespace std;
 
+static float EPS_machine = 1.0E-7;
+
 #ifdef _DEBUG_
 static int MYDEBUG = 0;
 #else
@@ -298,10 +300,15 @@ void VISU::CutLines_i::BuildTableOfReal(SALOMEDS::SObject_ptr theSObject){
       for(int i = 0; i < aNbPoints; i++){
 	aDataSet->GetPoint(i,aPnt);
 	Sub(aPnt,aBasePnt,aVect);
-	aDist = vtkMath::Dot(aVect,aDirLn) / aBoundPrjLn[2];
-	// the workaround
-	if(aDist < 0.0) aDist = 0.0; 
-	if(aDist > 1.0) aDist = 1.0;
+	if ( fabs(aBoundPrjLn[2]) < EPS_machine )
+	  aDist = 0.5;
+	else
+	  {
+	    aDist = vtkMath::Dot(aVect,aDirLn) / aBoundPrjLn[2];
+	    // the workaround
+	    if(aDist < 0.0) aDist = 0.0; 
+	    if(aDist > 1.0) aDist = 1.0;
+	  }
 	aXYMap[aDist] = aScalars->GetTuple1(i);
       }
       if(aFilter){