From 625de8e2fa2e24b21a1b5c74ca6bdf0cec63c2f5 Mon Sep 17 00:00:00 2001
From: abk <abk@opencascade.com>
Date: Fri, 10 Jul 2015 17:00:40 +0300
Subject: [PATCH] refs #623: Fatal error as result of splitting polyline

The reason of the error - the incorrect cutting of a topological curve by parameters - was corrected.
---
 src/HYDROData/HYDROData_TopoCurve.cxx | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/HYDROData/HYDROData_TopoCurve.cxx b/src/HYDROData/HYDROData_TopoCurve.cxx
index 9183b355..86c0cf82 100644
--- a/src/HYDROData/HYDROData_TopoCurve.cxx
+++ b/src/HYDROData/HYDROData_TopoCurve.cxx
@@ -567,8 +567,9 @@ void HYDROData_TopoCurve::Cut(
   std::list<TopoDS_Edge>::iterator aEIt = aCurves[0].myEdges.begin();
   std::deque<std::list<double> >::const_iterator aPLIt = theParameters.begin();
   for (std::deque<std::list<double> >::const_iterator aLastPLIt =
-    theParameters.end(); aPLIt != aLastPLIt; ++aEIt, ++aPLIt)
+    theParameters.end(); aPLIt != aLastPLIt; ++aPLIt)
   {
+    const int aSize = aCurves[aCI].myEdges.size();
     for (Iterator<std::list<double>, std::list<double>::const_iterator> aPIt(
       *aPLIt, (aEIt->Orientation() != TopAbs_REVERSED)); aPIt.More(); ++aPIt)
     {
@@ -586,6 +587,10 @@ void HYDROData_TopoCurve::Cut(
         aEIt = aCurves[aCI].myEdges.begin();
       }
     }
+    if (aCurves[aCI].myEdges.size() == aSize)
+    {
+      ++aEIt;
+    }
   }
   theCurves.push_back(aCurves[aCI]);
 }
-- 
2.39.2