#include <SMESH_MesherHelper.hxx>
#include <SMESH_subMesh.hxx>
#include <StdMeshers_QuadToTriaAdaptor.hxx>
+#include <StdMeshers_ViscousLayers2D.hxx>
#include <utilities.h>
// dump elements added to ng mesh
//#define DUMP_SEGMENTS
//#define DUMP_TRIANGLES
-//#define DUMP_TRIANGLES_SCRIPT "/tmp/trias.py" //!< debug addIntVerticesInSolids()
+//#define DUMP_TRIANGLES_SCRIPT "/tmp/trias.py" //!< debug AddIntVerticesInSolids()
TopTools_IndexedMapOfShape ShapesWithLocalSize;
std::map<int,double> VertexId2LocalSize;
*/
//=============================================================================
-NETGENPlugin_Mesher::NETGENPlugin_Mesher (SMESH_Mesh* mesh,
+NETGENPlugin_Mesher::NETGENPlugin_Mesher (SMESH_Mesh* mesh,
const TopoDS_Shape& aShape,
- const bool isVolume)
+ const bool isVolume)
: _mesh (mesh),
_shape (aShape),
_isVolume(isVolume),
_optimize(true),
_fineness(NETGENPlugin_Hypothesis::GetDefaultFineness()),
+ _isViscousLayers2D(false),
_simpleHyp(NULL)
{
- defaultParameters();
+ SetDefaultParameters();
ShapesWithLocalSize.Clear();
VertexId2LocalSize.clear();
EdgeId2LocalSize.clear();
*/
//================================================================================
-void NETGENPlugin_Mesher::defaultParameters()
+void NETGENPlugin_Mesher::SetDefaultParameters()
{
netgen::MeshingParameters& mparams = netgen::mparam;
// maximal mesh edge size
{
_simpleHyp = hyp;
if ( _simpleHyp )
- defaultParameters();
+ SetDefaultParameters();
}
//=============================================================================
*/
//================================================================================
-bool NETGENPlugin_Mesher::fillNgMesh(netgen::OCCGeometry& occgeom,
+bool NETGENPlugin_Mesher::FillNgMesh(netgen::OCCGeometry& occgeom,
netgen::Mesh& ngMesh,
vector<const SMDS_MeshNode*>& nodeVec,
const list< SMESH_subMesh* > & meshedSM,
*/
//================================================================================
-void NETGENPlugin_Mesher::fixIntFaces(const netgen::OCCGeometry& occgeom,
+void NETGENPlugin_Mesher::FixIntFaces(const netgen::OCCGeometry& occgeom,
netgen::Mesh& ngMesh,
NETGENPlugin_Internals& internalShapes)
{
*/
//================================================================================
-void NETGENPlugin_Mesher::addIntVerticesInFaces(const netgen::OCCGeometry& occgeom,
+void NETGENPlugin_Mesher::AddIntVerticesInFaces(const netgen::OCCGeometry& occgeom,
netgen::Mesh& ngMesh,
vector<const SMDS_MeshNode*>& nodeVec,
NETGENPlugin_Internals& internalShapes)
*/
//================================================================================
-void NETGENPlugin_Mesher::addIntVerticesInSolids(const netgen::OCCGeometry& occgeom,
+void NETGENPlugin_Mesher::AddIntVerticesInSolids(const netgen::OCCGeometry& occgeom,
netgen::Mesh& ngMesh,
vector<const SMDS_MeshNode*>& nodeVec,
NETGENPlugin_Internals& internalShapes)
} // loop on solids with internal vertices
}
+//================================================================================
+/*!
+ * \brief Fill netgen mesh with segments of a FACE
+ * \param ngMesh - netgen mesh
+ * \param geom - container of OCCT geometry to mesh
+ * \param wires - data of nodes on FACE boundary
+ * \param helper - mesher helper holding the FACE
+ * \param nodeVec - vector of nodes in which node index == netgen ID
+ * \retval SMESH_ComputeErrorPtr - error description
+ */
+//================================================================================
+
+SMESH_ComputeErrorPtr
+NETGENPlugin_Mesher::AddSegmentsToMesh(netgen::Mesh& ngMesh,
+ netgen::OCCGeometry& geom,
+ const TSideVector& wires,
+ SMESH_MesherHelper& helper,
+ vector< const SMDS_MeshNode* > & nodeVec)
+{
+ // ----------------------------
+ // Check wires and count nodes
+ // ----------------------------
+ int nbNodes = 0;
+ for ( int iW = 0; iW < wires.size(); ++iW )
+ {
+ StdMeshers_FaceSidePtr wire = wires[ iW ];
+ if ( wire->MissVertexNode() )
+ {
+ // Commented for issue 0020960. It worked for the case, let's wait for case where it doesn't.
+ // It seems that there is no reason for this limitation
+// return TError
+// (new SMESH_ComputeError(COMPERR_BAD_INPUT_MESH, "Missing nodes on vertices"));
+ }
+ const vector<UVPtStruct>& uvPtVec = wire->GetUVPtStruct();
+ if ( uvPtVec.size() != wire->NbPoints() )
+ return SMESH_ComputeError::New(COMPERR_BAD_INPUT_MESH,
+ SMESH_Comment("Unexpected nb of points on wire ") << iW
+ << ": " << uvPtVec.size()<<" != "<<wire->NbPoints());
+ nbNodes += wire->NbPoints();
+ }
+ nodeVec.reserve( nodeVec.size() + nbNodes + 1 );
+ if ( nodeVec.empty() )
+ nodeVec.push_back( 0 );
+
+ // -----------------
+ // Fill netgen mesh
+ // -----------------
+
+ const bool wasNgMeshEmpty = ( ngMesh.GetNP() < 1 ); /* true => this method is called by
+ NETGENPlugin_NETGEN_2D_ONLY */
+
+ // map for nodes on vertices since they can be shared between wires
+ // ( issue 0020676, face_int_box.brep) and nodes built by NETGEN
+ map<const SMDS_MeshNode*, int > node2ngID;
+ if ( !wasNgMeshEmpty ) // fill node2ngID with nodes built by NETGEN
+ {
+ set< int > subIDs; // ids of sub-shapes of the FACE
+ for ( int iW = 0; iW < wires.size(); ++iW )
+ {
+ StdMeshers_FaceSidePtr wire = wires[ iW ];
+ for ( int iE = 0, nbE = wire->NbEdges(); iE < nbE; ++iE )
+ {
+ subIDs.insert( wire->EdgeID( iE ));
+ subIDs.insert( helper.GetMeshDS()->ShapeToIndex( wire->FirstVertex( iE )));
+ }
+ }
+ for ( size_t ngID = 1; ngID < nodeVec.size(); ++ngID )
+ if ( subIDs.count( nodeVec[ngID]->getshapeId() ))
+ node2ngID.insert( make_pair( nodeVec[ngID], ngID ));
+ }
+
+ const int solidID = 0, faceID = geom.fmap.FindIndex( helper.GetSubShape() );
+ if ( ngMesh.GetNFD() < 1 )
+ ngMesh.AddFaceDescriptor (netgen::FaceDescriptor(faceID, solidID, solidID, 0));
+
+ for ( int iW = 0; iW < wires.size(); ++iW )
+ {
+ StdMeshers_FaceSidePtr wire = wires[ iW ];
+ const vector<UVPtStruct>& uvPtVec = wire->GetUVPtStruct();
+ const int nbSegments = wire->NbPoints() - 1;
+
+ // assure the 1st node to be in node2ngID, which is needed to correctly
+ // "close chain of segments" (see below) in case if the 1st node is not
+ // onVertex because it is on a Viscous layer
+ node2ngID.insert( make_pair( uvPtVec[ 0 ].node, ngMesh.GetNP() + 1 ));
+
+ // compute length of every segment
+ vector<double> segLen( nbSegments );
+ for ( int i = 0; i < nbSegments; ++i )
+ segLen[i] = SMESH_TNodeXYZ( uvPtVec[ i ].node ).Distance( uvPtVec[ i+1 ].node );
+
+ int edgeID = 1, posID = -2;
+ bool isInternalWire = false;
+ double vertexNormPar = 0;
+ for ( int i = 0; i < nbSegments; ++i ) // loop on segments
+ {
+ // Add the first point of a segment
+
+ const SMDS_MeshNode * n = uvPtVec[ i ].node;
+ const int posShapeID = n->getshapeId();
+ bool onVertex = ( n->GetPosition()->GetTypeOfPosition() == SMDS_TOP_VERTEX );
+ bool onEdge = ( n->GetPosition()->GetTypeOfPosition() == SMDS_TOP_EDGE );
+
+ // skip nodes on degenerated edges
+ if ( helper.IsDegenShape( posShapeID ) &&
+ helper.IsDegenShape( uvPtVec[ i+1 ].node->getshapeId() ))
+ continue;
+
+ int ngID1 = ngMesh.GetNP() + 1, ngID2 = ngID1+1;
+ if ( onVertex || ( !wasNgMeshEmpty && onEdge ))
+ ngID1 = node2ngID.insert( make_pair( n, ngID1 )).first->second;
+ if ( ngID1 > ngMesh.GetNP() )
+ {
+ netgen::MeshPoint mp( netgen::Point<3> (n->X(), n->Y(), n->Z()) );
+ ngMesh.AddPoint ( mp, 1, netgen::EDGEPOINT );
+ nodeVec.push_back( n );
+ }
+ else // n is in ngMesh already, and ngID2 in prev segment is wrong
+ {
+ ngID2 = ngMesh.GetNP() + 1;
+ if ( i > 0 ) // prev segment belongs to same wire
+ {
+ netgen::Segment& prevSeg = ngMesh.LineSegment( ngMesh.GetNSeg() );
+ prevSeg[1] = ngID1;
+ }
+ }
+
+ // Add the segment
+
+ netgen::Segment seg;
+
+ seg[0] = ngID1; // ng node id
+ seg[1] = ngID2; // ng node id
+ seg.edgenr = ngMesh.GetNSeg() + 1; // ng segment id
+ seg.si = faceID; // = geom.fmap.FindIndex (face);
+
+ for ( int iEnd = 0; iEnd < 2; ++iEnd)
+ {
+ const UVPtStruct& pnt = uvPtVec[ i + iEnd ];
+
+ seg.epgeominfo[ iEnd ].dist = pnt.param; // param on curve
+ seg.epgeominfo[ iEnd ].u = pnt.u;
+ seg.epgeominfo[ iEnd ].v = pnt.v;
+
+ // find out edge id and node parameter on edge
+ onVertex = ( pnt.normParam + 1e-10 > vertexNormPar );
+ if ( onVertex || posShapeID != posID )
+ {
+ // get edge id
+ double normParam = pnt.normParam;
+ if ( onVertex )
+ normParam = 0.5 * ( uvPtVec[ i ].normParam + uvPtVec[ i+1 ].normParam );
+ int edgeIndexInWire = wire->EdgeIndex( normParam );
+ vertexNormPar = wire->LastParameter( edgeIndexInWire );
+ const TopoDS_Edge& edge = wire->Edge( edgeIndexInWire );
+ edgeID = geom.emap.FindIndex( edge );
+ posID = posShapeID;
+ isInternalWire = ( edge.Orientation() == TopAbs_INTERNAL );
+ // if ( onVertex ) // param on curve is different on each of two edges
+ // seg.epgeominfo[ iEnd ].dist = helper.GetNodeU( edge, pnt.node );
+ }
+ seg.epgeominfo[ iEnd ].edgenr = edgeID; // = geom.emap.FindIndex(edge);
+ }
+
+ ngMesh.AddSegment (seg);
+ {
+ // restrict size of elements near the segment
+ SMESH_TNodeXYZ np1( n ), np2( uvPtVec[ i+1 ].node );
+ // get an average size of adjacent segments to avoid sharp change of
+ // element size (regression on issue 0020452, note 0010898)
+ int iPrev = SMESH_MesherHelper::WrapIndex( i-1, nbSegments );
+ int iNext = SMESH_MesherHelper::WrapIndex( i+1, nbSegments );
+ double avgH = ( segLen[ iPrev ] + segLen[ i ] + segLen[ iNext ]) / 3;
+
+ RestrictLocalSize( ngMesh, 0.5*(np1+np2), avgH );
+ }
+#ifdef DUMP_SEGMENTS
+ cout << "Segment: " << seg.edgenr << endl
+ << "\tp1: " << seg[0] << endl
+ << "\tp2: " << seg[1] << endl
+ << "\tp0 param: " << seg.epgeominfo[ 0 ].dist << endl
+ << "\tp0 uv: " << seg.epgeominfo[ 0 ].u <<", "<< seg.epgeominfo[ 0 ].v << endl
+ << "\tp0 edge: " << seg.epgeominfo[ 0 ].edgenr << endl
+ << "\tp1 param: " << seg.epgeominfo[ 1 ].dist << endl
+ << "\tp1 uv: " << seg.epgeominfo[ 1 ].u <<", "<< seg.epgeominfo[ 1 ].v << endl
+ << "\tp1 edge: " << seg.epgeominfo[ 1 ].edgenr << endl;
+#endif
+ if ( isInternalWire )
+ {
+ swap (seg[0], seg[1]);
+ swap( seg.epgeominfo[0], seg.epgeominfo[1] );
+ seg.edgenr = ngMesh.GetNSeg() + 1; // segment id
+ ngMesh.AddSegment (seg);
+#ifdef DUMP_SEGMENTS
+ cout << "Segment: " << seg.edgenr << endl << "\tis REVRESE of the previous one" << endl;
+#endif
+ }
+ } // loop on segments on a wire
+
+ // close chain of segments
+ if ( nbSegments > 0 )
+ {
+ netgen::Segment& lastSeg = ngMesh.LineSegment( ngMesh.GetNSeg() - int( isInternalWire));
+ const SMDS_MeshNode * lastNode = uvPtVec.back().node;
+ lastSeg[1] = node2ngID.insert( make_pair( lastNode, lastSeg[1] )).first->second;
+ if ( lastSeg[1] > ngMesh.GetNP() )
+ {
+ netgen::MeshPoint mp( netgen::Point<3> (lastNode->X(), lastNode->Y(), lastNode->Z()) );
+ ngMesh.AddPoint ( mp, 1, netgen::EDGEPOINT );
+ nodeVec.push_back( lastNode );
+ }
+ if ( isInternalWire )
+ {
+ netgen::Segment& realLastSeg = ngMesh.LineSegment( ngMesh.GetNSeg() );
+ realLastSeg[0] = lastSeg[1];
+ }
+ }
+
+ } // loop on WIREs of a FACE
+
+ // add a segment instead of an internal vertex
+ if ( wasNgMeshEmpty )
+ {
+ NETGENPlugin_Internals intShapes( *helper.GetMesh(), helper.GetSubShape(), /*is3D=*/false );
+ AddIntVerticesInFaces( geom, ngMesh, nodeVec, intShapes );
+ }
+ ngMesh.CalcSurfacesOfNode();
+
+ return TError();
+}
+
//================================================================================
/*!
* \brief Fill SMESH mesh according to contents of netgen mesh
" elements per radius = " << mparams.curvaturesafety << "\n"
" second order = " << mparams.secondorder << "\n"
" quad allowed = " << mparams.quad);
- cout << " quad allowed = " << mparams.quad<<endl;
+ //cout << " quad allowed = " << mparams.quad<<endl;
SMESH_ComputeErrorPtr error = SMESH_ComputeError::New();
-
+ static string debugFile = "/tmp/ngMesh.py"; /* to call toPython( ngMesh, debugFile )
+ while debugging netgen */
// -------------------------
// Prepare OCC geometry
// -------------------------
// Fill ngMesh with nodes and segments of computed submeshes
if ( !err )
{
- _faceDescriptors.clear();
- err = ! ( fillNgMesh(occgeo, *ngMesh, nodeVec, meshedSM[ MeshDim_0D ]) &&
- fillNgMesh(occgeo, *ngMesh, nodeVec, meshedSM[ MeshDim_1D ]));
+ err = ! ( FillNgMesh(occgeo, *ngMesh, nodeVec, meshedSM[ MeshDim_0D ]) &&
+ FillNgMesh(occgeo, *ngMesh, nodeVec, meshedSM[ MeshDim_1D ]));
}
initState = NETGENPlugin_ngMeshInfo(ngMesh);
if ( internals.hasInternalVertexInFace() )
{
// store computed segments in SMESH in order not to create SMESH
- // edges for ng segments added by addIntVerticesInFaces()
+ // edges for ng segments added by AddIntVerticesInFaces()
FillSMesh( occgeo, *ngMesh, initState, *_mesh, nodeVec, comment );
// add segments to faces with internal vertices
- addIntVerticesInFaces( occgeo, *ngMesh, nodeVec, internals );
+ AddIntVerticesInFaces( occgeo, *ngMesh, nodeVec, internals );
+ initState = NETGENPlugin_ngMeshInfo(ngMesh);
+ }
+
+ // Build viscous layers
+ if ( _isViscousLayers2D )
+ {
+ if ( !internals.hasInternalVertexInFace() ) {
+ FillSMesh( occgeo, *ngMesh, initState, *_mesh, nodeVec, comment );
+ initState = NETGENPlugin_ngMeshInfo(ngMesh);
+ }
+ SMESH_ProxyMesh::Ptr viscousMesh;
+ SMESH_MesherHelper helper( *_mesh );
+ for ( int faceID = 1; faceID <= occgeo.fmap.Extent(); ++faceID )
+ {
+ const TopoDS_Face& F = TopoDS::Face( occgeo.fmap( faceID ));
+ viscousMesh = StdMeshers_ViscousLayers2D::Compute( *_mesh, F );
+ if ( !viscousMesh )
+ return false;
+ // exclude from computation ng segments built on EDGEs of F
+ for (int i = 1; i <= ngMesh->GetNSeg(); i++)
+ {
+ netgen::Segment & seg = ngMesh->LineSegment(i);
+ if (seg.si == faceID)
+ seg.si = 0;
+ }
+ // add new segments to ngMesh instead of excluded ones
+ helper.SetSubShape( F );
+ TSideVector wires =
+ StdMeshers_FaceSide::GetFaceWires( F, *_mesh, /*skipMediumNodes=*/true,
+ error, viscousMesh );
+ error = AddSegmentsToMesh( *ngMesh, occgeo, wires, helper, nodeVec );
+
+ if ( !error ) error = SMESH_ComputeError::New();
+ }
initState = NETGENPlugin_ngMeshInfo(ngMesh);
}
quadFaceSM.push_back( _mesh->GetSubMesh( face.Current() ));
meshedSM[ MeshDim_2D ].remove( quadFaceSM.back() );
}
- fillNgMesh(occgeo, *ngMesh, nodeVec, quadFaceSM, proxyMesh);
+ FillNgMesh(occgeo, *ngMesh, nodeVec, quadFaceSM, proxyMesh);
}
}
// fill ngMesh with faces of sub-meshes
- err = ! ( fillNgMesh(occgeo, *ngMesh, nodeVec, meshedSM[ MeshDim_2D ]));
+ err = ! ( FillNgMesh(occgeo, *ngMesh, nodeVec, meshedSM[ MeshDim_2D ]));
initState = NETGENPlugin_ngMeshInfo(ngMesh);
//toPython( ngMesh, "/tmp/ngPython.py");
}
// faces for ng faces added here
FillSMesh( occgeo, *ngMesh, initState, *_mesh, nodeVec, comment );
// add ng faces to solids with internal vertices
- addIntVerticesInSolids( occgeo, *ngMesh, nodeVec, internals );
+ AddIntVerticesInSolids( occgeo, *ngMesh, nodeVec, internals );
// duplicate mesh faces on internal faces
- fixIntFaces( occgeo, *ngMesh, internals );
+ FixIntFaces( occgeo, *ngMesh, internals );
initState = NETGENPlugin_ngMeshInfo(ngMesh);
}
// Let netgen compute 3D mesh
if ( true /*isOK*/ ) // get whatever built
FillSMesh( occgeo, *ngMesh, initState, *_mesh, nodeVec, comment ); //!<
- SMESH_ComputeErrorPtr readErr = readErrors(nodeVec);
+ SMESH_ComputeErrorPtr readErr = ReadErrors(nodeVec);
if ( readErr && !readErr->myBadElements.empty() )
error = readErr;
//================================================================================
SMESH_ComputeErrorPtr
-NETGENPlugin_Mesher::readErrors(const vector<const SMDS_MeshNode* >& nodeVec)
+NETGENPlugin_Mesher::ReadErrors(const vector<const SMDS_MeshNode* >& nodeVec)
{
SMESH_ComputeErrorPtr err = SMESH_ComputeError::New
(COMPERR_BAD_INPUT_MESH, "Some edges multiple times in surface mesh");
outfile << "mesh.AddNode( ";
outfile << (*ngMesh)[pi](0) << ", ";
outfile << (*ngMesh)[pi](1) << ", ";
- outfile << (*ngMesh)[pi](2) << ")" << endl;
+ outfile << (*ngMesh)[pi](2) << ") ## "<< pi << endl;
}
int nbDom = ngMesh->GetNDomains();
Element2d sel = (*ngMesh)[sei];
for (int j = 0; j < sel.GetNP(); j++)
outfile << sel[j] << ( j+1 < sel.GetNP() ? ", " : " ])");
+ if ( sel.IsDeleted() ) outfile << " ## IsDeleted ";
outfile << endl;
if ((*ngMesh)[sei].GetIndex())
#include <StdMeshers_LengthFromEdges.hxx>
#include <StdMeshers_MaxElementArea.hxx>
#include <StdMeshers_QuadranglePreference.hxx>
+#include <StdMeshers_ViscousLayers2D.hxx>
#include <Precision.hxx>
#include <Standard_ErrorHandler.hxx>
_compatibleHypothesis.push_back("LengthFromEdges");
_compatibleHypothesis.push_back("QuadranglePreference");
_compatibleHypothesis.push_back("NETGEN_Parameters_2D");
+ _compatibleHypothesis.push_back("ViscousLayers2D");
_hypMaxElementArea = 0;
_hypLengthFromEdges = 0;
_hypQuadranglePreference = static_cast<const StdMeshers_QuadranglePreference*>(hyp);
else if ( hypName == "NETGEN_Parameters_2D" )
_hypParameters = static_cast<const NETGENPlugin_Hypothesis_2D*>(hyp);
+ else if ( hypName == StdMeshers_ViscousLayers2D::GetHypType() )
+ continue;
else {
aStatus = HYP_INCOMPATIBLE;
return false;
int nbHyps = bool(_hypMaxElementArea) + bool(_hypLengthFromEdges) + bool(_hypParameters );
if ( nbHyps > 1 )
aStatus = HYP_CONCURENT;
- else if ( nbHyps == 1)
+ else
aStatus = HYP_OK;
return ( aStatus == HYP_OK );
}
-//================================================================================
-/*!
- * \brief Fill netgen mesh with segments
- * \retval SMESH_ComputeErrorPtr - error description
- */
-//================================================================================
-
-static TError addSegmentsToMesh(netgen::Mesh& ngMesh,
- OCCGeometry& geom,
- const TSideVector& wires,
- SMESH_MesherHelper& helper,
- vector< const SMDS_MeshNode* > & nodeVec)
-{
- // ----------------------------
- // Check wires and count nodes
- // ----------------------------
- int nbNodes = 0;
- double totalLength = 0;
- for ( int iW = 0; iW < wires.size(); ++iW )
- {
- StdMeshers_FaceSidePtr wire = wires[ iW ];
- if ( wire->MissVertexNode() )
- {
- // Commented for issue 0020960. It worked for the case, let's wait for case where it doesn't.
- // It seems that there is no reason for this limitation
-// return TError
-// (new SMESH_ComputeError(COMPERR_BAD_INPUT_MESH, "Missing nodes on vertices"));
- if (getenv("USER") && string("eap")==getenv("USER"))
- cout << "Warning: NETGENPlugin_NETGEN_2D_ONLY : try to work with missing nodes on vertices"<<endl;
- }
- const vector<UVPtStruct>& uvPtVec = wire->GetUVPtStruct();
- if ( uvPtVec.size() != wire->NbPoints() )
- return TError
- (new SMESH_ComputeError(COMPERR_BAD_INPUT_MESH,
- SMESH_Comment("Unexpected nb of points on wire ") << iW
- << ": " << uvPtVec.size()<<" != "<<wire->NbPoints()));
- nbNodes += wire->NbPoints();
- totalLength += wire->Length();
- }
- nodeVec.reserve( nbNodes );
-
- // -----------------
- // Fill netgen mesh
- // -----------------
-
-// netgen::Box<3> bb = geom.GetBoundingBox();
-// bb.Increase (bb.Diam()/10);
-// ngMesh.SetLocalH (bb.PMin(), bb.PMax(), 0.5); // set grading
-
- // map for nodes on vertices since they can be shared between wires
- // ( issue 0020676, face_int_box.brep)
- map<const SMDS_MeshNode*, int > node2ngID;
-
- const int faceID = 1, solidID = 0;
- if ( ngMesh.GetNFD() < 1 )
- ngMesh.AddFaceDescriptor (FaceDescriptor(faceID, solidID, solidID, 0));
-
- for ( int iW = 0; iW < wires.size(); ++iW )
- {
- StdMeshers_FaceSidePtr wire = wires[ iW ];
- const vector<UVPtStruct>& uvPtVec = wire->GetUVPtStruct();
- const int nbSegments = wire->NbPoints() - 1;
-
- // compute length of every segment
- vector<double> segLen( nbSegments );
- for ( int i = 0; i < nbSegments; ++i )
- segLen[i] = SMESH_TNodeXYZ( uvPtVec[ i ].node ).Distance( uvPtVec[ i+1 ].node );
-
- int edgeID = 1, posID = -2;
- bool isInternalWire = false;
- for ( int i = 0; i < nbSegments; ++i ) // loop on segments
- {
- // Add the first point of a segment
- const SMDS_MeshNode * n = uvPtVec[ i ].node;
- const int posShapeID = n->getshapeId();
- bool onVertex = ( n->GetPosition()->GetTypeOfPosition() == SMDS_TOP_VERTEX );
-
- // skip nodes on degenerated edges
- if ( helper.IsDegenShape( posShapeID ) &&
- helper.IsDegenShape( uvPtVec[ i+1 ].node->getshapeId() ))
- continue;
-
- int ngID1 = ngMesh.GetNP() + 1, ngID2 = ngID1+1;
- if ( onVertex )
- ngID1 = node2ngID.insert( make_pair( n, ngID1 )).first->second;
- if ( ngID1 > ngMesh.GetNP() )
- {
- MeshPoint mp( Point<3> (n->X(), n->Y(), n->Z()) );
- ngMesh.AddPoint ( mp, 1, EDGEPOINT );
- nodeVec.push_back( n );
- }
- else
- {
- ngID2 = ngMesh.GetNP() + 1;
- if ( i > 0 ) // prev segment belongs to same wire
- {
- Segment& prevSeg = ngMesh.LineSegment( ngMesh.GetNSeg() );
- prevSeg[1] = ngID1;
- }
- }
-
- // Add the segment
- Segment seg;
-
- seg[0] = ngID1; // ng node id
- seg[1] = ngID2; // ng node id
-
- seg.edgenr = ngMesh.GetNSeg() + 1;// segment id
- seg.si = faceID; // = geom.fmap.FindIndex (face);
-
- for ( int iEnd = 0; iEnd < 2; ++iEnd)
- {
- const UVPtStruct& pnt = uvPtVec[ i + iEnd ];
-
- seg.epgeominfo[ iEnd ].dist = pnt.param; // param on curve
- seg.epgeominfo[ iEnd ].u = pnt.u;
- seg.epgeominfo[ iEnd ].v = pnt.v;
-
- // find out edge id and node parameter on edge
- onVertex = ( pnt.node->GetPosition()->GetTypeOfPosition() == SMDS_TOP_VERTEX );
- if ( onVertex || posShapeID != posID )
- {
- // get edge id
- double normParam = pnt.normParam;
- if ( onVertex )
- normParam = 0.5 * ( uvPtVec[ i ].normParam + uvPtVec[ i+1 ].normParam );
- const TopoDS_Edge& edge = wire->Edge( wire->EdgeIndex( normParam ));
- edgeID = geom.emap.FindIndex( edge );
- posID = posShapeID;
- isInternalWire = ( edge.Orientation() == TopAbs_INTERNAL );
- // if ( onVertex ) // param on curve is different on each of two edges
- // seg.epgeominfo[ iEnd ].dist = helper.GetNodeU( edge, pnt.node );
- }
- seg.epgeominfo[ iEnd ].edgenr = edgeID; // = geom.emap.FindIndex(edge);
- }
-
- ngMesh.AddSegment (seg);
- {
- // restrict size of elements near the segment
- SMESH_TNodeXYZ np1( n ), np2( uvPtVec[ i+1 ].node );
- // get an average size of adjacent segments to avoid sharp change of
- // element size (regression on issue 0020452, note 0010898)
- int iPrev = SMESH_MesherHelper::WrapIndex( i-1, nbSegments );
- int iNext = SMESH_MesherHelper::WrapIndex( i+1, nbSegments );
- double avgH = ( segLen[ iPrev ] + segLen[ i ] + segLen[ iNext ]) / 3;
-
- NETGENPlugin_Mesher::RestrictLocalSize( ngMesh, 0.5*(np1+np2), avgH );
- }
-#ifdef DUMP_SEGMENTS
- cout << "Segment: " << seg.edgenr << endl
- << "\tp1: " << seg[0] << endl
- << "\tp2: " << seg[1] << endl
- << "\tp0 param: " << seg.epgeominfo[ 0 ].dist << endl
- << "\tp0 uv: " << seg.epgeominfo[ 0 ].u <<", "<< seg.epgeominfo[ 0 ].v << endl
- << "\tp0 edge: " << seg.epgeominfo[ 0 ].edgenr << endl
- << "\tp1 param: " << seg.epgeominfo[ 1 ].dist << endl
- << "\tp1 uv: " << seg.epgeominfo[ 1 ].u <<", "<< seg.epgeominfo[ 1 ].v << endl
- << "\tp1 edge: " << seg.epgeominfo[ 1 ].edgenr << endl;
-#endif
- if ( isInternalWire )
- {
- swap (seg[0], seg[1]);
- swap( seg.epgeominfo[0], seg.epgeominfo[1] );
- seg.edgenr = ngMesh.GetNSeg() + 1; // segment id
- ngMesh.AddSegment (seg);
-#ifdef DUMP_SEGMENTS
- cout << "Segment: " << seg.edgenr << endl << "\tis REVRESE of the previous one" << endl;
-#endif
- }
- } // loop on segments on a wire
-
- // close chain of segments
- if ( nbSegments > 0 )
- {
- Segment& lastSeg = ngMesh.LineSegment( ngMesh.GetNSeg() - int( isInternalWire));
- const SMDS_MeshNode * lastNode = uvPtVec.back().node;
- lastSeg[1] = node2ngID.insert( make_pair( lastNode, lastSeg[1] )).first->second;
- if ( lastSeg[1] > ngMesh.GetNP() )
- {
- MeshPoint mp( Point<3> (lastNode->X(), lastNode->Y(), lastNode->Z()) );
- ngMesh.AddPoint ( mp, 1, EDGEPOINT );
- nodeVec.push_back( lastNode );
- }
- if ( isInternalWire )
- {
- Segment& realLastSeg = ngMesh.LineSegment( ngMesh.GetNSeg() );
- realLastSeg[0] = lastSeg[1];
- }
- }
-
- } // loop on wires of a face
-
- // add a segment instead of internal vertex
- NETGENPlugin_Internals intShapes( *helper.GetMesh(), helper.GetSubShape(), /*is3D=*/false );
- NETGENPlugin_Mesher::addIntVerticesInFaces( geom, ngMesh, nodeVec, intShapes );
-
- ngMesh.CalcSurfacesOfNode();
-
- return TError();
-}
-
//=============================================================================
/*!
*Here we are going to use the NETGEN mesher
helper.SetElementsOnShape( true );
const bool ignoreMediumNodes = _quadraticMesh;
+ // build viscous layers if required
+ const TopoDS_Face F = TopoDS::Face( aShape.Oriented( TopAbs_FORWARD ));
+ SMESH_ProxyMesh::Ptr proxyMesh = StdMeshers_ViscousLayers2D::Compute( aMesh, F );
+ if ( !proxyMesh )
+ return false;
+
// ------------------------
// get all edges of a face
// ------------------------
- const TopoDS_Face F = TopoDS::Face( aShape.Oriented( TopAbs_FORWARD ));
TError problem;
- TSideVector wires = StdMeshers_FaceSide::GetFaceWires( F, aMesh, ignoreMediumNodes, problem );
+ TSideVector wires =
+ StdMeshers_FaceSide::GetFaceWires( F, aMesh, ignoreMediumNodes, problem, proxyMesh );
if ( problem && !problem->IsOK() )
return error( problem );
int nbWires = wires.size();
ngMesh->SetGlobalH (netgen::mparam.maxh);
vector< const SMDS_MeshNode* > nodeVec;
- problem = addSegmentsToMesh( *ngMesh, occgeo, wires, helper, nodeVec );
+ problem = aMesher.AddSegmentsToMesh( *ngMesh, occgeo, wires, helper, nodeVec );
if ( problem && !problem->IsOK() )
return error( problem );
int nbNodes = ngMesh->GetNP();
int nbFaces = ngMesh->GetNSE();
- int nbInputNodes = nodeVec.size();
- nodeVec.resize( nbNodes, 0 );
+ int nbInputNodes = nodeVec.size()-1;
+ nodeVec.resize( nbNodes+1, 0 );
// add nodes
- for ( int i = nbInputNodes + 1; i <= nbNodes; ++i )
+ for ( int ngID = nbInputNodes + 1; ngID <= nbNodes; ++ngID )
{
- const MeshPoint& ngPoint = ngMesh->Point(i);
+ const MeshPoint& ngPoint = ngMesh->Point( ngID );
#ifdef NETGEN_NEW
SMDS_MeshNode * node = meshDS->AddNode(ngPoint(0), ngPoint(1), ngPoint(2));
#else
SMDS_MeshNode * node = meshDS->AddNode(ngPoint.X(), ngPoint.Y(), ngPoint.Z());
#endif
- nodeVec[ i-1 ] = node;
+ nodeVec[ ngID ] = node;
}
// create faces
for (j=1; j <= elem.GetNP(); ++j)
{
int pind = elem.PNum(j);
- if ( pind-1 < 0 )
+ if ( pind < 1 )
break;
- const SMDS_MeshNode* node = nodeVec.at(pind-1);
+ const SMDS_MeshNode* node = nodeVec[ pind ];
if ( reverse )
nodes[ nodes.size()-j ] = node;
else
