X-Git-Url: http://git.salome-platform.org/gitweb/?a=blobdiff_plain;f=src%2FSMDS%2FSMDS_MeshVolume.cxx;h=ee9eb939fa0a11fbe1e681b9aff2753162271ad5;hb=e3019524b4caa444880639745b22f30d577aba2c;hp=755285447cb721d880293adb649e1a32a9fcedea;hpb=4c16067d4281f56bd07d3f92fb63fff9c0c1d169;p=modules%2Fsmesh.git

diff --git a/src/SMDS/SMDS_MeshVolume.cxx b/src/SMDS/SMDS_MeshVolume.cxx
index 755285447..ee9eb939f 100644
--- a/src/SMDS/SMDS_MeshVolume.cxx
+++ b/src/SMDS/SMDS_MeshVolume.cxx
@@ -1,4 +1,4 @@
-// Copyright (C) 2007-2016  CEA/DEN, EDF R&D, OPEN CASCADE
+// Copyright (C) 2007-2019  CEA/DEN, EDF R&D, OPEN CASCADE
 //
 // Copyright (C) 2003-2007  OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
 // CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
@@ -75,6 +75,45 @@ void SMDS_MeshVolume::init( const std::vector<vtkIdType>& vtkNodeIds )
   SMDS_MeshCell::init( aType, vtkNodeIds );
 }
 
+bool SMDS_MeshVolume::ChangeNodes(const std::vector<const SMDS_MeshNode*>& nodes,
+                                  const std::vector<int>&                  quantities) const
+{
+  if ( !IsPoly() )
+    return false;
+
+  vtkIdType nFaces = 0;
+  vtkIdType* ptIds = 0;
+  getGrid()->GetFaceStream( GetVtkID(), nFaces, ptIds );
+
+  // stream size and nb faces should not change
+
+  if ((int) quantities.size() != nFaces )
+  {
+    return false;
+  }
+  int id = 0, nbPoints = 0;
+  for ( int i = 0; i < nFaces; i++ )
+  {
+    int nodesInFace = ptIds[id];
+    nbPoints += nodesInFace;
+    id += (nodesInFace + 1);
+  }
+  if ((int) nodes.size() != nbPoints )
+  {
+    return false;
+  }
+
+  // update ptIds
+  size_t iP = 0, iN = 0;
+  for ( size_t i = 0; i < quantities.size(); ++i )
+  {
+    ptIds[ iP++ ] = quantities[ i ]; // nb face nodes
+    for ( int j = 0; j < quantities[ i ]; ++j )
+      ptIds[ iP++ ] = nodes[ iN++ ]->GetVtkID();
+  }
+  return true;
+}
+
 const SMDS_MeshNode* SMDS_MeshVolume::GetNode(const int ind) const
 {
   if ( !IsPoly() )
@@ -88,7 +127,7 @@ const SMDS_MeshNode* SMDS_MeshVolume::GetNode(const int ind) const
   {
     int nodesInFace = ptIds[id];
     if ( ind < nbPoints + nodesInFace )
-      return GetMesh()->FindNodeVtk( ptIds[ ind + i ]);
+      return GetMesh()->FindNodeVtk( ptIds[ 1 + ind + i ]);
     nbPoints += nodesInFace;
     id += (nodesInFace + 1);
   }