From: rnv <rnv@opencascade.com>
Date: Mon, 10 Jan 2011 15:38:48 +0000 (+0000)
Subject: Fix for the 21125: EDF 1233 SMESH: Degrardation of precision in a test case for quadr... 
X-Git-Tag: StartingPortingMED3~169
X-Git-Url: http://git.salome-platform.org/gitweb/?p=modules%2Fsmesh.git;a=commitdiff_plain;h=96cbac20480e2cb492d4f26cfd609c11a1ee8389

Fix for the 21125: EDF 1233 SMESH: Degrardation of precision in a test case for quadratic conversion.
---

diff --git a/src/SMDS/SMDS_Mesh.cxx b/src/SMDS/SMDS_Mesh.cxx
index 792e3e221..ab63d6280 100644
--- a/src/SMDS/SMDS_Mesh.cxx
+++ b/src/SMDS/SMDS_Mesh.cxx
@@ -154,6 +154,9 @@ SMDS_Mesh::SMDS_Mesh()
   myGrid->Initialize();
   myGrid->Allocate();
   vtkPoints* points = vtkPoints::New();
+  // rnv: to fix bug "21125: EDF 1233 SMESH: Degrardation of precision in a test case for quadratic conversion"
+  // using double type for storing coordinates of nodes instead float.
+  points->SetDataType(VTK_DOUBLE);
   points->SetNumberOfPoints(SMDS_Mesh::chunkSize);
   myGrid->SetPoints( points );
   points->Delete();
@@ -2503,6 +2506,9 @@ void SMDS_Mesh::Clear()
   myGrid->Initialize();
   myGrid->Allocate();
   vtkPoints* points = vtkPoints::New();
+  // rnv: to fix bug "21125: EDF 1233 SMESH: Degrardation of precision in a test case for quadratic conversion"
+  // using double type for storing coordinates of nodes instead float.
+  points->SetDataType(VTK_DOUBLE);
   points->SetNumberOfPoints(SMDS_Mesh::chunkSize);
   myGrid->SetPoints( points );
   points->Delete();
diff --git a/src/SMDS/SMDS_UnstructuredGrid.cxx b/src/SMDS/SMDS_UnstructuredGrid.cxx
index 2db632a74..ec30d5b64 100644
--- a/src/SMDS/SMDS_UnstructuredGrid.cxx
+++ b/src/SMDS/SMDS_UnstructuredGrid.cxx
@@ -160,6 +160,9 @@ void SMDS_UnstructuredGrid::compactGrid(std::vector<int>& idNodesOldToNew, int n
     {
       MESSAGE("-------------- compactGrid, newNodeSize " << newNodeSize);
       newPoints = vtkPoints::New();
+      // rnv: to fix bug "21125: EDF 1233 SMESH: Degrardation of precision in a test case for quadratic conversion"
+      // using double type for storing coordinates of nodes instead float.
+      newPoints->SetDataType(VTK_DOUBLE);
       newPoints->Initialize();
       newPoints->Allocate(newNodeSize);
       newPoints->SetNumberOfPoints(newNodeSize);
@@ -371,7 +374,7 @@ void SMDS_UnstructuredGrid::copyNodes(vtkPoints *newPoints, std::vector<int>& id
   int nbPoints = end - start;
   if (nbPoints > 0)
     {
-      memcpy(target, source, 3 * sizeof(float) * nbPoints);
+      memcpy(target, source, 3 * sizeof(double) * nbPoints);
       for (int j = start; j < end; j++)
         idNodesOldToNew[j] = alreadyCopied++; // old vtkId --> new vtkId
         //idNodesOldToNew[alreadyCopied++] = idNodesOldToNew[j]; // new vtkId --> old SMDS id