From: eap <eap@opencascade.com>
Date: Wed, 15 Dec 2010 10:56:55 +0000 (+0000)
Subject: 0020832: EDF 1359 SMESH : Automatic meshing of boundary layers
X-Git-Url: http://git.salome-platform.org/gitweb/?a=commitdiff_plain;h=152bbf593faccdb4aed9b35074cae6bc0fbb56b7;p=plugins%2Fghs3dplugin.git

0020832: EDF 1359 SMESH : Automatic meshing of boundary layers

-               opt-hypos="GHS3D_Parameters"
+               opt-hypos="GHS3D_Parameters, ViscousLayers"
---

diff --git a/resources/GHS3DPlugin.xml b/resources/GHS3DPlugin.xml
index 8570f1d..1e7fe64 100644
--- a/resources/GHS3DPlugin.xml
+++ b/resources/GHS3DPlugin.xml
@@ -41,7 +41,7 @@
                icon-id="mesh_tree_hypo_ghs3d.png"
                input="TRIA,QUAD"
 	       need-geom="false"
-               opt-hypos="GHS3D_Parameters"
+               opt-hypos="GHS3D_Parameters, ViscousLayers"
                dim="3"/>
   </algorithms>
 </meshers-group>
diff --git a/src/GHS3DPlugin_GHS3D.cxx b/src/GHS3DPlugin_GHS3D.cxx
index 28ee3aa..25aa593 100644
--- a/src/GHS3DPlugin_GHS3D.cxx
+++ b/src/GHS3DPlugin_GHS3D.cxx
@@ -42,6 +42,7 @@
 #include "SMDS_VolumeOfNodes.hxx"
 
 #include <StdMeshers_QuadToTriaAdaptor.hxx>
+#include <StdMeshers_ViscousLayers.hxx>
 
 #include <BRepAdaptor_Surface.hxx>
 #include <BRepBndLib.hxx>
@@ -128,6 +129,7 @@ GHS3DPlugin_GHS3D::GHS3DPlugin_GHS3D(int hypId, int studyId, SMESH_Gen* gen)
   _iShape=0;
   _nbShape=0;
   _compatibleHypothesis.push_back("GHS3D_Parameters");
+  _compatibleHypothesis.push_back( StdMeshers_ViscousLayers::GetHypType() );
   _requireShape = false; // can work without shape
 }
 
@@ -154,12 +156,20 @@ bool GHS3DPlugin_GHS3D::CheckHypothesis ( SMESH_Mesh&         aMesh,
 {
   aStatus = SMESH_Hypothesis::HYP_OK;
 
-  // there is only one compatible Hypothesis so far
   _hyp = 0;
+  _viscousLayersHyp = 0;
   _keepFiles = false;
-  const list <const SMESHDS_Hypothesis * >& hyps = GetUsedHypothesis(aMesh, aShape);
-  if ( !hyps.empty() )
-    _hyp = static_cast<const GHS3DPlugin_Hypothesis*> ( hyps.front() );
+
+  const list <const SMESHDS_Hypothesis * >& hyps =
+    GetUsedHypothesis(aMesh, aShape, /*ignoreAuxiliary=*/false);
+  list <const SMESHDS_Hypothesis* >::const_iterator h = hyps.begin();
+  for ( ; h != hyps.end(); ++h )
+  {
+    if ( !_hyp )
+      _hyp = dynamic_cast< const GHS3DPlugin_Hypothesis*> ( *h );
+    if ( !_viscousLayersHyp )
+      _viscousLayersHyp = dynamic_cast< const StdMeshers_ViscousLayers*> ( *h );
+  }
   if ( _hyp )
     _keepFiles = _hyp->GetKeepFiles();
 
@@ -230,15 +240,15 @@ static char* readMapIntLine(char* ptr, int tab[]) {
 //purpose  :
 //=======================================================================
 
-template < class Mesh, class Shape >
-static int countShape( Mesh* mesh, Shape shape ) {
-  TopExp_Explorer expShape ( mesh->ShapeToMesh(), shape );
-  int nbShape = 0;
-  for ( ; expShape.More(); expShape.Next() ) {
-      nbShape++;
-  }
-  return nbShape;
-}
+// template < class Mesh, class Shape >
+// static int countShape( Mesh* mesh, Shape shape ) {
+//   TopExp_Explorer expShape ( mesh->ShapeToMesh(), shape );
+//   int nbShape = 0;
+//   for ( ; expShape.More(); expShape.Next() ) {
+//       nbShape++;
+//   }
+//   return nbShape;
+// }
 
 //=======================================================================
 //function : writeFaces
@@ -249,6 +259,7 @@ static bool writeFaces (ofstream &                            theFile,
                         SMESHDS_Mesh*                         theMesh,
                         const TopoDS_Shape&                   theShape,
                         vector<StdMeshers_QuadToTriaAdaptor>& theQuad2Trias,
+                        StdMeshers_ProxyMesh::Ptr&            theCdfMesh,
                         const map <int,int> &                 theSmdsToGhs3dIdMap)
 {
   // record structure:
@@ -258,7 +269,7 @@ static bool writeFaces (ofstream &                            theFile,
   // NB_NODES NODE_NB_1 NODE_NB_2 ... (NB_NODES + 1) times: DUMMY_INT
 
   TopoDS_Shape aShape;
-  SMESHDS_SubMesh* theSubMesh;
+  const SMESHDS_SubMesh* theSubMesh;
   const SMDS_MeshElement* aFace;
   const char* space    = "  ";
   const int   dummyint = 0;
@@ -275,7 +286,13 @@ static bool writeFaces (ofstream &                            theFile,
   // 2 adaptors for each face in facesMap, as a face can belong to 2 solids
   typedef vector< StdMeshers_QuadToTriaAdaptor* > TwoAdaptors;
   vector< TwoAdaptors > qttaByFace;
-  if ( theQuad2Trias.empty() )
+  if ( theCdfMesh )
+  {
+    for ( int i = 1; i <= facesMap.Extent(); ++i )
+      if (( theSubMesh  = theCdfMesh->GetSubMesh( facesMap(i))))
+        nbTriangles += theSubMesh->NbElements();
+  }
+  else if ( theQuad2Trias.empty() )
   {
     // case w/o quadrangles
     for ( int i = 1; i <= facesMap.Extent(); ++i )
@@ -327,7 +344,7 @@ static bool writeFaces (ofstream &                            theFile,
   for ( int i = 1; i <= facesMap.Extent(); i++ )
   {
     aShape = facesMap(i);
-    theSubMesh = theMesh->MeshElements( aShape );
+    theSubMesh = theCdfMesh ? theCdfMesh->GetSubMesh( aShape ) : theMesh->MeshElements( aShape );
     if ( !theSubMesh ) continue;
     TwoAdaptors& aTwoAdaptors = qttaByFace[ i-1 ];
     itOnSubMesh = theSubMesh->GetElements();
@@ -1341,9 +1358,17 @@ bool GHS3DPlugin_GHS3D::Compute(SMESH_Mesh&         theMesh,
     for (_iShape = 0, expBox.ReInit(); expBox.More(); expBox.Next())
       aQuad2Trias[ _iShape++ ].Compute( theMesh, expBox.Current() );
   }
+  // viscous layers
+  StdMeshers_ProxyMesh::Ptr cdfMesh;
+  if ( _viscousLayersHyp && aQuad2Trias.empty() )
+  {
+    cdfMesh = _viscousLayersHyp->Compute( theMesh, theShape );
+    if ( !cdfMesh )
+      return false;
+  }
 
   Ok = (writePoints( aPointsFile, helper, aSmdsToGhs3dIdMap, aGhs3dIdToNodeMap, enforcedVertices) &&
-        writeFaces ( aFacesFile,  meshDS, theShape, aQuad2Trias, aSmdsToGhs3dIdMap ));
+        writeFaces ( aFacesFile,  meshDS, theShape, aQuad2Trias, cdfMesh, aSmdsToGhs3dIdMap ));
 
   // Write aSmdsToGhs3dIdMap to temp file
   TCollection_AsciiString aSmdsToGhs3dIdMapFileName;
diff --git a/src/GHS3DPlugin_GHS3D.hxx b/src/GHS3DPlugin_GHS3D.hxx
index b05bdde..2054a79 100644
--- a/src/GHS3DPlugin_GHS3D.hxx
+++ b/src/GHS3DPlugin_GHS3D.hxx
@@ -21,7 +21,6 @@
 // File      : GHS3DPlugin_GHS3D.hxx
 // Author    : Edward AGAPOV, modified by Lioka RAZAFINDRAZAKA (CEA) 09/02/2007
 // Project   : SALOME
-// $Header$
 //=============================================================================
 //
 #ifndef _GHS3DPlugin_GHS3D_HXX_
@@ -32,9 +31,10 @@
 #include <map>
 #include <vector>
 
-class SMESH_Mesh;
 class GHS3DPlugin_Hypothesis;
 class SMDS_MeshNode;
+class SMESH_Mesh;
+class StdMeshers_ViscousLayers;
 class TCollection_AsciiString;
 class _Ghs2smdsConvertor;
 
@@ -66,6 +66,7 @@ private:
   int  _nbShape;
   bool _keepFiles;
   const GHS3DPlugin_Hypothesis* _hyp;
+  const StdMeshers_ViscousLayers* _viscousLayersHyp;
 };
 
 /*!