std::map< int, BLSURFPlugin_Hypothesis::TEnfVertexCoordsList > FaceId2EnforcedVertexCoords;
std::map< BLSURFPlugin_Hypothesis::TEnfVertexCoords, BLSURFPlugin_Hypothesis::TEnfVertexCoords > EnfVertexCoords2ProjVertex;
std::map< BLSURFPlugin_Hypothesis::TEnfVertexCoords, BLSURFPlugin_Hypothesis::TEnfVertexList > EnfVertexCoords2EnfVertexList;
+SMESH_MesherHelper* theHelper;
bool HasSizeMapOnFace=false;
bool HasSizeMapOnEdge=false;
*/
//=============================================================================
-BLSURFPlugin_BLSURF::BLSURFPlugin_BLSURF(int hypId, int studyId,
- SMESH_Gen* gen)
+BLSURFPlugin_BLSURF::BLSURFPlugin_BLSURF(int hypId,
+ int studyId,
+ SMESH_Gen* gen,
+ bool theHasGEOM)
: SMESH_2D_Algo(hypId, studyId, gen)
{
- _name = "MG-CADSurf";//"BLSURF";
+ _name = theHasGEOM ? "MG-CADSurf" : "MG-CADSurf_NOGEOM";//"BLSURF";
_shapeType = (1 << TopAbs_FACE); // 1 bit /shape type
- _compatibleHypothesis.push_back(BLSURFPlugin_Hypothesis::GetHypType());
- _compatibleHypothesis.push_back(StdMeshers_ViscousLayers2D::GetHypType());
+ _compatibleHypothesis.push_back(BLSURFPlugin_Hypothesis::GetHypType(theHasGEOM));
+ if ( theHasGEOM )
+ _compatibleHypothesis.push_back(StdMeshers_ViscousLayers2D::GetHypType());
_requireDiscreteBoundary = false;
_onlyUnaryInput = false;
_hypothesis = NULL;
_supportSubmeshes = true;
+ _requireShape = theHasGEOM;
smeshGen_i = SMESH_Gen_i::GetSMESHGen();
CORBA::Object_var anObject = smeshGen_i->GetNS()->Resolve("/myStudyManager");
{
theHyp = *itl;
string hypName = theHyp->GetName();
- if ( hypName == BLSURFPlugin_Hypothesis::GetHypType() )
+ if ( hypName == BLSURFPlugin_Hypothesis::GetHypType(true) ||
+ hypName == BLSURFPlugin_Hypothesis::GetHypType(false) )
{
_hypothesis = static_cast<const BLSURFPlugin_Hypothesis*> (theHyp);
ASSERT(_hypothesis);
gp_XY uv;
gp_XYZ xyz;
} projectionPoint;
+
/////////////////////////////////////////////////////////
-projectionPoint getProjectionPoint(const TopoDS_Face& face, const gp_Pnt& point)
+
+projectionPoint getProjectionPoint(const TopoDS_Face& theFace, const gp_Pnt& thePoint)
{
projectionPoint myPoint;
- Handle(Geom_Surface) surface = BRep_Tool::Surface(face);
- GeomAPI_ProjectPointOnSurf projector( point, surface );
- if ( !projector.IsDone() || projector.NbPoints()==0 )
- throw "getProjectionPoint: Can't project";
-
- Quantity_Parameter u,v;
- projector.LowerDistanceParameters(u,v);
- myPoint.uv = gp_XY(u,v);
- gp_Pnt aPnt = projector.NearestPoint();
- myPoint.xyz = gp_XYZ(aPnt.X(),aPnt.Y(),aPnt.Z());
- //return gp_XY(u,v);
- return myPoint;
-}
-/////////////////////////////////////////////////////////
-/////////////////////////////////////////////////////////
-double getT(const TopoDS_Edge& edge, const gp_Pnt& point)
-{
- Standard_Real f,l;
- Handle(Geom_Curve) curve = BRep_Tool::Curve(edge, f,l);
- GeomAPI_ProjectPointOnCurve projector( point, curve);
- if ( projector.NbPoints() == 0 )
- throw;
- return projector.LowerDistanceParameter();
+ if ( theFace.IsNull() )
+ {
+ TopoDS_Shape foundFace, myShape = theHelper->GetSubShape();
+ TopTools_MapOfShape checkedFaces;
+ std::map< double, std::pair< TopoDS_Face, gp_Pnt2d > > dist2face;
+
+ for ( TopExp_Explorer exp ( myShape, TopAbs_FACE ); exp.More(); exp.Next())
+ {
+ const TopoDS_Face& face = TopoDS::Face( exp.Current() );
+ if ( !checkedFaces.Add( face )) continue;
+
+ // check distance to face
+ Handle(ShapeAnalysis_Surface) surface = theHelper->GetSurface( face );
+ gp_Pnt2d uv = surface->ValueOfUV( thePoint, Precision::Confusion());
+ double distance = surface->Gap();
+ if ( distance > Precision::Confusion() )
+ {
+ // the face is far, store for future analysis
+ dist2face.insert( std::make_pair( distance, std::make_pair( face, uv )));
+ }
+ else
+ {
+ // check location on the face
+ BRepClass_FaceClassifier FC( face, uv, Precision::Confusion());
+ if ( FC.State() == TopAbs_IN )
+ {
+ foundFace = face;
+ myPoint.uv = uv.XY();
+ myPoint.xyz = surface->Value( uv ).XYZ();
+ break;
+ }
+ }
+ }
+ if ( foundFace.IsNull() )
+ {
+ // find the closest face
+ std::map< double, std::pair< TopoDS_Face, gp_Pnt2d > >::iterator d2f = dist2face.begin();
+ for ( ; d2f != dist2face.end(); ++d2f )
+ {
+ const TopoDS_Face& face = d2f->second.first;
+ const gp_Pnt2d & uv = d2f->second.second;
+ BRepClass_FaceClassifier FC( face, uv, Precision::Confusion());
+ if ( FC.State() == TopAbs_IN )
+ {
+ foundFace = face;
+ myPoint.uv = uv.XY();
+ myPoint.xyz = theHelper->GetSurface( face )->Value( uv ).XYZ();
+ break;
+ }
+ }
+ }
+ // set the resultShape
+ if ( foundFace.IsNull() )
+ throw SMESH_ComputeError(COMPERR_BAD_PARMETERS,
+ "getProjectionPoint: can't find a face by a vertex");
+ }
+ else
+ {
+ Handle(Geom_Surface) surface = BRep_Tool::Surface( theFace );
+ GeomAPI_ProjectPointOnSurf projector( thePoint, surface );
+ if ( !projector.IsDone() || projector.NbPoints()==0 )
+ throw SMESH_ComputeError(COMPERR_BAD_PARMETERS,
+ "getProjectionPoint: can't project a vertex to a face");
+
+ Quantity_Parameter u,v;
+ projector.LowerDistanceParameters(u,v);
+ myPoint.uv = gp_XY(u,v);
+ gp_Pnt aPnt = projector.NearestPoint();
+ myPoint.xyz = gp_XYZ(aPnt.X(),aPnt.Y(),aPnt.Z());
+ }
+
+ return myPoint;
}
/////////////////////////////////////////////////////////
}
}
}
-
-/*!
- * \brief Find geom faces supporting given points
- */
-TopoDS_Shape BLSURFPlugin_BLSURF::
-findFaces( const BLSURFPlugin_Hypothesis::TEnfVertexList& enfVertexList )
-{
- // get points from enfVertexList
- vector< gp_Pnt > points;
- BLSURFPlugin_Hypothesis::TEnfVertexList::const_iterator enfVertexListIt = enfVertexList.begin();
- for( ; enfVertexListIt != enfVertexList.end() ; ++enfVertexListIt )
- {
- BLSURFPlugin_Hypothesis::TEnfVertex * enfVertex = *enfVertexListIt;
- if ( enfVertex->coords.size() >= 3 )
- {
- points.push_back( gp_Pnt( enfVertex->coords[0], enfVertex->coords[1], enfVertex->coords[2]));
- }
- else
- {
- TopoDS_Shape GeomShape = entryToShape( enfVertex->geomEntry );
- if ( !GeomShape.IsNull() )
- {
- if ( GeomShape.ShapeType() == TopAbs_VERTEX )
- points.push_back( BRep_Tool::Pnt( TopoDS::Vertex( GeomShape )));
-
- else if ( GeomShape.ShapeType() == TopAbs_COMPOUND)
- for (TopoDS_Iterator it (GeomShape); it.More(); it.Next())
- if ( it.Value().ShapeType() == TopAbs_VERTEX )
- points.push_back( BRep_Tool::Pnt( TopoDS::Vertex( it.Value() )));
- }
- }
- }
-
- TopoDS_Shape resultShape, myShape = myHelper->GetSubShape();
- TopoDS_Compound compound;
-
- for ( size_t i = 0; i <= points.size(); ++i )
- {
- TopoDS_Face foundFace;
- TopTools_MapOfShape checkedFaces;
- std::map< double, std::pair< TopoDS_Face, gp_Pnt2d > > dist2face;
-
- for ( TopExp_Explorer exp ( myShape, TopAbs_FACE ); exp.More(); exp.Next())
- {
- const TopoDS_Face& face = TopoDS::Face( exp.Current() );
- if ( !checkedFaces.Add( face )) continue;
-
- // check distance to face
- Handle(ShapeAnalysis_Surface) surface = myHelper->GetSurface( face );
- gp_Pnt2d uv = surface->ValueOfUV( points[i], Precision::Confusion());
- double distance = surface->Gap();
- if ( distance > Precision::Confusion() )
- {
- // the face is far, store for future analysis
- dist2face.insert( std::make_pair( distance, std::make_pair( face, uv )));
- }
- else
- {
- // check location on the face
- BRepClass_FaceClassifier FC( face, uv, Precision::Confusion());
- if ( FC.State() == TopAbs_IN )
- {
- foundFace = face;
- break;
- }
- }
- }
- if ( foundFace.IsNull() )
- {
- // find the closest face
- std::map< double, std::pair< TopoDS_Face, gp_Pnt2d > >::iterator d2f = dist2face.begin();
- for ( ; d2f != dist2face.end(); ++d2f )
- {
- const TopoDS_Face& face = d2f->second.first;
- const gp_Pnt2d & uv = d2f->second.second;
- BRepClass_FaceClassifier FC( face, uv, Precision::Confusion());
- if ( FC.State() == TopAbs_IN )
- {
- foundFace = face;
- break;
- }
- }
- }
- // set the resultShape
- if ( !foundFace.IsNull() )
- {
- if ( resultShape.IsNull() )
- {
- resultShape = foundFace;
- }
- else
- {
- BRep_Builder builder;
- if ( compound.IsNull() )
- {
- builder.MakeCompound( compound );
- resultShape = compound;
- }
- builder.Add( compound, foundFace );
- }
- }
- } // loop on points
-
- return resultShape;
-}
-
+
/////////////////////////////////////////////////////////
void BLSURFPlugin_BLSURF::createEnforcedVertexOnFace(TopoDS_Shape faceShape, BLSURFPlugin_Hypothesis::TEnfVertexList enfVertexList)
{
void BLSURFPlugin_BLSURF::SetParameters(const BLSURFPlugin_Hypothesis* hyp,
cadsurf_session_t * css,
- const TopoDS_Shape& theGeomShape
- )
+ const TopoDS_Shape& theGeomShape)
{
// rnc : Bug 1457
// Clear map so that it is not stored in the algorithm with old enforced vertices in it
+ FacesWithSizeMap.Clear();
+ FaceId2SizeMap.clear();
+ EdgesWithSizeMap.Clear();
+ EdgeId2SizeMap.clear();
+ VerticesWithSizeMap.Clear();
+ VertexId2SizeMap.clear();
+ FaceId2PythonSmp.clear();
+ EdgeId2PythonSmp.clear();
+ VertexId2PythonSmp.clear();
+ FaceId2AttractorCoords.clear();
+ FaceId2ClassAttractor.clear();
+ FaceIndex2ClassAttractor.clear();
+ FacesWithEnforcedVertices.Clear();
+ FaceId2EnforcedVertexCoords.clear();
+ EnfVertexCoords2ProjVertex.clear();
EnfVertexCoords2EnfVertexList.clear();
double diagonal = SMESH_Mesh::GetShapeDiagonalSize( theGeomShape );
GeomShape = entryToShape(enfIt->first);
if ( GeomShape.IsNull() )
{
- GeomShape = findFaces( enfIt->second );
- if ( GeomShape.IsNull() )
- continue;
+ createEnforcedVertexOnFace( GeomShape, enfIt->second );
}
// Group Management
- if ( GeomShape.ShapeType() == TopAbs_COMPOUND){
+ else if ( GeomShape.ShapeType() == TopAbs_COMPOUND)
+ {
for (TopoDS_Iterator it (GeomShape); it.More(); it.Next()){
if (it.Value().ShapeType() == TopAbs_FACE){
HasSizeMapOnFace = true;
}
}
}
- if ( GeomShape.ShapeType() == TopAbs_FACE){
+ else if ( GeomShape.ShapeType() == TopAbs_FACE)
+ {
HasSizeMapOnFace = true;
createEnforcedVertexOnFace(GeomShape, enfIt->second);
}
/*!
* \brief Class correctly terminating usage of MG-CADSurf library at destruction
*/
- class BLSURF_Cleaner
+ struct BLSURF_Cleaner
{
- context_t * _ctx;
+ context_t * _ctx;
cadsurf_session_t* _css;
- cad_t * _cad;
- dcad_t * _dcad;
- public:
- BLSURF_Cleaner(context_t * ctx,
- cadsurf_session_t* css,
- cad_t * cad,
- dcad_t * dcad)
+ cad_t * _cad;
+ dcad_t * _dcad;
+
+ BLSURF_Cleaner(context_t * ctx,
+ cadsurf_session_t* css=0,
+ cad_t * cad=0,
+ dcad_t * dcad=0)
: _ctx ( ctx ),
_css ( css ),
_cad ( cad ),
*/
//=============================================================================
-bool BLSURFPlugin_BLSURF::Compute(SMESH_Mesh& aMesh, const TopoDS_Shape& aShape) {
-
+bool BLSURFPlugin_BLSURF::Compute(SMESH_Mesh& aMesh, const TopoDS_Shape& aShape)
+{
// Fix problem with locales
Kernel_Utils::Localizer aLocalizer;
SMESHDS_Mesh* meshDS = aMesh.GetMeshDS();
SMESH_MesherHelper helper( aMesh ), helperWithShape( aMesh );
- myHelper = & helperWithShape;
+ myHelper = theHelper = & helperWithShape;
// do not call helper.IsQuadraticSubMesh() because sub-meshes
// may be cleaned and helper.myTLinkNodeMap gets invalid in such a case
bool haveQuadraticSubMesh = helperWithShape.IsQuadraticSubMesh( aShape );
cad_t *c = cad_new(ctx);
dcad_t *dcad = dcad_new(c);
- FacesWithSizeMap.Clear();
- FaceId2SizeMap.clear();
- FaceId2ClassAttractor.clear();
- FaceIndex2ClassAttractor.clear();
- EdgesWithSizeMap.Clear();
- EdgeId2SizeMap.clear();
- VerticesWithSizeMap.Clear();
- VertexId2SizeMap.clear();
-
/* Now fill the CAD object with data from your CAD
* environement. This is the most complex part of a successfull
* integration.
return ( status == STATUS_OK && !quadraticSubMeshAndViscousLayer );
}
+//================================================================================
+/*!
+ * \brief Compute a mesh basing on discrete CAD description
+ */
+//================================================================================
+
+bool BLSURFPlugin_BLSURF::Compute(SMESH_Mesh & aMesh, SMESH_MesherHelper* aHelper)
+{
+ if ( aMesh.NbFaces() == 0 )
+ return error( COMPERR_BAD_INPUT_MESH, "2D elements are missing" );
+
+ context_t *ctx = context_new();
+ if (!ctx) return error("Pb in context_new()");
+
+ BLSURF_Cleaner cleaner( ctx );
+
+ message_cb_user_data mcud;
+ mcud._error = & this->SMESH_Algo::_comment;
+ mcud._progress = & this->SMESH_Algo::_progress;
+ mcud._verbosity =
+ _hypothesis ? _hypothesis->GetVerbosity() : BLSURFPlugin_Hypothesis::GetDefaultVerbosity();
+ meshgems_status_t ret = context_set_message_callback(ctx, message_cb, &mcud);
+ if (ret != STATUS_OK) return error("Pb. in context_set_message_callback() ");
+
+ cadsurf_session_t * css = cadsurf_session_new(ctx);
+ if(!css) return error( "Pb. in cadsurf_session_new() " );
+ cleaner._css = css;
+
+
+ // Fill an input mesh
+
+ mesh_t * msh = meshgems_mesh_new_in_memory( ctx );
+ if ( !msh ) return error("Pb. in meshgems_mesh_new_in_memory()");
+
+ // mark nodes used by 2D elements
+ SMESHDS_Mesh* meshDS = aMesh.GetMeshDS();
+ SMDS_NodeIteratorPtr nodeIt = meshDS->nodesIterator();
+ while ( nodeIt->more() )
+ {
+ const SMDS_MeshNode* n = nodeIt->next();
+ n->setIsMarked( n->NbInverseElements( SMDSAbs_Face ));
+ }
+ meshgems_mesh_set_vertex_count( msh, meshDS->NbNodes() );
+
+ // set node coordinates
+ if ( meshDS->NbNodes() != meshDS->MaxNodeID() )
+ {
+ meshDS->compactMesh();
+ }
+ SMESH_TNodeXYZ nXYZ;
+ nodeIt = meshDS->nodesIterator();
+ meshgems_integer i;
+ for ( i = 1; nodeIt->more(); ++i )
+ {
+ nXYZ.Set( nodeIt->next() );
+ meshgems_mesh_set_vertex_coordinates( msh, i, nXYZ._xyz );
+ }
+
+ // set nodes of faces
+ meshgems_mesh_set_triangle_count ( msh, meshDS->GetMeshInfo().NbTriangles() );
+ meshgems_mesh_set_quadrangle_count( msh, meshDS->GetMeshInfo().NbQuadrangles() );
+ meshgems_integer nodeIDs[4];
+ meshgems_integer iT = 1, iQ = 1;
+ SMDS_FaceIteratorPtr faceIt = meshDS->facesIterator();
+ while ( faceIt->more() )
+ {
+ const SMDS_MeshElement* face = faceIt->next();
+ meshgems_integer nbNodes = face->NbCornerNodes();
+ if ( nbNodes > 4 || face->IsPoly() ) continue;
+
+ for ( i = 0; i < nbNodes; ++i )
+ nodeIDs[i] = face->GetNode( i )->GetID();
+ if ( nbNodes == 3 )
+ meshgems_mesh_set_triangle_vertices ( msh, iT++, nodeIDs );
+ else
+ meshgems_mesh_set_quadrangle_vertices( msh, iQ++, nodeIDs );
+ }
+
+ ret = cadsurf_set_mesh(css, msh);
+ if ( ret != STATUS_OK ) return error("Pb in cadsurf_set_mesh()");
+
+
+ // Compute the mesh
+
+ SetParameters(_hypothesis, css, aMesh.GetShapeToMesh() );
+
+ ret = cadsurf_compute_mesh(css);
+ if ( ret != STATUS_OK ) return false;
+
+ mesh_t *omsh = 0;
+ cadsurf_get_mesh(css, &omsh);
+ if ( !omsh ) return error( "Pb. in cadsurf_get_mesh()" );
+
+
+ // Update SALOME mesh
+
+ // remove quadrangles and triangles
+ for ( faceIt = meshDS->facesIterator(); faceIt->more(); )
+ {
+ const SMDS_MeshElement* face = faceIt->next();
+ if ( !face->IsPoly() )
+ meshDS->RemoveFreeElement( face, /*sm=*/0, /*fromGroups=*/true );
+ }
+ // remove edges that bound the just removed faces
+ for ( SMDS_EdgeIteratorPtr edgeIt = meshDS->edgesIterator(); edgeIt->more(); )
+ {
+ const SMDS_MeshElement* edge = edgeIt->next();
+ const SMDS_MeshNode* n0 = edge->GetNode(0);
+ const SMDS_MeshNode* n1 = edge->GetNode(1);
+ if ( n0->isMarked() &&
+ n1->isMarked() &&
+ n0->NbInverseElements( SMDSAbs_Volume ) == 0 &&
+ n1->NbInverseElements( SMDSAbs_Volume ) == 0 )
+ meshDS->RemoveFreeElement( edge, /*sm=*/0, /*fromGroups=*/true );
+ }
+ // remove nodes that just became free
+ for ( nodeIt = meshDS->nodesIterator(); nodeIt->more(); )
+ {
+ const SMDS_MeshNode* n = nodeIt->next();
+ if ( n->isMarked() && n->NbInverseElements() == 0 )
+ meshDS->RemoveFreeNode( n, /*sm=*/0, /*fromGroups=*/true );
+ }
+
+ // add nodes
+ meshgems_integer nbvtx = 0, nodeID;
+ meshgems_mesh_get_vertex_count( omsh, &nbvtx );
+ meshgems_real xyz[3];
+ for ( i = 1; i <= nbvtx; ++i )
+ {
+ meshgems_mesh_get_vertex_coordinates( omsh, i, xyz );
+ SMDS_MeshNode* n = meshDS->AddNode( xyz[0], xyz[1], xyz[2] );
+ nodeID = n->GetID();
+ meshgems_mesh_set_vertex_tag( omsh, i, &nodeID ); // save mapping of IDs in MG and SALOME meshes
+ }
+
+ // add triangles
+ meshgems_integer nbtri = 0;
+ meshgems_mesh_get_triangle_count( omsh, &nbtri );
+ const SMDS_MeshNode* nodes[3];
+ for ( i = 1; i <= nbtri; ++i )
+ {
+ meshgems_mesh_get_triangle_vertices( omsh, i, nodeIDs );
+ for ( int j = 0; j < 3; ++j )
+ {
+ meshgems_mesh_get_vertex_tag( omsh, nodeIDs[j], &nodeID );
+ nodes[j] = meshDS->FindNode( nodeID );
+ }
+ meshDS->AddFace( nodes[0], nodes[1], nodes[2] );
+ }
+
+ cadsurf_regain_mesh(css, omsh);
+
+ // as we don't assign the new triangles to a shape (the pseudo-shape),
+ // we mark the shape as always computed to avoid the error messages
+ // that no elements assigned to the shape
+ aMesh.GetSubMesh( aHelper->GetSubShape() )->SetIsAlwaysComputed( true );
+
+ return true;
+}
+
//================================================================================
/*!
* \brief Terminates computation
*/
//=============================================================================
-void BLSURFPlugin_BLSURF::Set_NodeOnEdge(SMESHDS_Mesh* meshDS, const SMDS_MeshNode* node, const TopoDS_Shape& ed) {
+void BLSURFPlugin_BLSURF::Set_NodeOnEdge(SMESHDS_Mesh* meshDS,
+ const SMDS_MeshNode* node,
+ const TopoDS_Shape& ed)
+{
const TopoDS_Edge edge = TopoDS::Edge(ed);
gp_Pnt pnt(node->X(), node->Y(), node->Z());
