0022401]: [CEA 992] Regression on SMESH using NETGEN 2D
Make two attempts: with and w/o MESHCONST_ANALYSE step
This commit is contained in:
eap
parent
4280b9f4db
commit
ffc352d7cc
@ -263,149 +263,166 @@ bool NETGENPlugin_NETGEN_2D_ONLY::Compute(SMESH_Mesh& aMesh,
|
||||
// Make input netgen mesh
|
||||
// -------------------------
|
||||
|
||||
NETGENPlugin_NetgenLibWrapper ngLib;
|
||||
netgen::Mesh * ngMesh = (netgen::Mesh*) ngLib._ngMesh;
|
||||
// MESHCONST_ANALYSE step may lead to a failure, so we make an attempt
|
||||
// w/o MESHCONST_ANALYSE at the second loop
|
||||
int err = 1;
|
||||
for ( int iLoop = 0; iLoop < 2; iLoop++ )
|
||||
{
|
||||
bool isMESHCONST_ANALYSE = false;
|
||||
InitComputeError();
|
||||
|
||||
NETGENPlugin_NetgenLibWrapper ngLib;
|
||||
netgen::Mesh * ngMesh = (netgen::Mesh*) ngLib._ngMesh;
|
||||
ngLib._isComputeOk = false;
|
||||
|
||||
#ifndef NETGEN_V5
|
||||
char *optstr = 0;
|
||||
char *optstr = 0;
|
||||
#endif
|
||||
int startWith = MESHCONST_ANALYSE;
|
||||
int endWith = MESHCONST_ANALYSE;
|
||||
int err = 1;
|
||||
int startWith = MESHCONST_ANALYSE;
|
||||
int endWith = MESHCONST_ANALYSE;
|
||||
|
||||
if ( !_hypLengthFromEdges && !_hypMaxElementArea )
|
||||
{
|
||||
#ifdef NETGEN_V5
|
||||
err = netgen::OCCGenerateMesh(occgeo, ngMesh, netgen::mparam, startWith, endWith);
|
||||
#else
|
||||
err = netgen::OCCGenerateMesh(occgeo, ngMesh, startWith, endWith, optstr);
|
||||
#endif
|
||||
ngLib._ngMesh = 0;
|
||||
ngLib.setMesh(( nglib::Ng_Mesh*) ngMesh );
|
||||
}
|
||||
else
|
||||
{
|
||||
Box<3> bb = occgeo.GetBoundingBox();
|
||||
bb.Increase (bb.Diam()/10);
|
||||
ngMesh->SetLocalH (bb.PMin(), bb.PMax(), netgen::mparam.grading);
|
||||
ngMesh->SetGlobalH (netgen::mparam.maxh);
|
||||
}
|
||||
|
||||
vector< const SMDS_MeshNode* > nodeVec;
|
||||
problem = aMesher.AddSegmentsToMesh( *ngMesh, occgeo, wires, helper, nodeVec );
|
||||
if ( problem && !problem->IsOK() )
|
||||
return error( problem );
|
||||
|
||||
// limit element size near existing segments
|
||||
TopTools_IndexedMapOfShape edgeMap, faceMap;
|
||||
TopExp::MapShapes( aMesh.GetShapeToMesh(), TopAbs_EDGE, edgeMap );
|
||||
for ( int iE = 1; iE <= edgeMap.Extent(); ++iE )
|
||||
{
|
||||
const TopoDS_Shape& edge = edgeMap( iE );
|
||||
if ( SMESH_Algo::isDegenerated( TopoDS::Edge( edge )) ||
|
||||
helper.IsSubShape( edge, aShape ))
|
||||
continue;
|
||||
SMESHDS_SubMesh* smDS = aMesh.GetMeshDS()->MeshElements( edge );
|
||||
if ( !smDS ) continue;
|
||||
SMDS_ElemIteratorPtr segIt = smDS->GetElements();
|
||||
while ( segIt->more() )
|
||||
if ( !_hypLengthFromEdges && !_hypMaxElementArea && !iLoop == 1 )
|
||||
{
|
||||
const SMDS_MeshElement* seg = segIt->next();
|
||||
SMESH_TNodeXYZ n1 = seg->GetNode(0);
|
||||
SMESH_TNodeXYZ n2 = seg->GetNode(1);
|
||||
gp_XYZ p = 0.5 * ( n1 + n2 );
|
||||
netgen::Point3d pi(p.X(), p.Y(), p.Z());
|
||||
ngMesh->RestrictLocalH( pi, Max(( n1 - n2 ).Modulus(), netgen::mparam.minh ));
|
||||
isMESHCONST_ANALYSE = true;
|
||||
#ifdef NETGEN_V5
|
||||
err = netgen::OCCGenerateMesh(occgeo, ngMesh, netgen::mparam, startWith, endWith);
|
||||
#else
|
||||
err = netgen::OCCGenerateMesh(occgeo, ngMesh, startWith, endWith, optstr);
|
||||
#endif
|
||||
ngLib._ngMesh = 0;
|
||||
ngLib.setMesh(( nglib::Ng_Mesh*) ngMesh );
|
||||
}
|
||||
}
|
||||
|
||||
// -------------------------
|
||||
// Generate surface mesh
|
||||
// -------------------------
|
||||
|
||||
startWith = MESHCONST_MESHSURFACE;
|
||||
endWith = MESHCONST_OPTSURFACE;
|
||||
|
||||
try {
|
||||
OCC_CATCH_SIGNALS;
|
||||
|
||||
#ifdef NETGEN_V5
|
||||
err = netgen::OCCGenerateMesh(occgeo, ngMesh, netgen::mparam, startWith, endWith);
|
||||
#else
|
||||
err = netgen::OCCGenerateMesh(occgeo, ngMesh, startWith, endWith, optstr);
|
||||
#endif
|
||||
if(netgen::multithread.terminate)
|
||||
return false;
|
||||
if ( err )
|
||||
error(SMESH_Comment("Error in netgen::OCCGenerateMesh() at ") << netgen::multithread.task);
|
||||
}
|
||||
catch (Standard_Failure& ex)
|
||||
{
|
||||
SMESH_Comment str("Exception in netgen::OCCGenerateMesh()");
|
||||
str << " at " << netgen::multithread.task
|
||||
<< ": " << ex.DynamicType()->Name();
|
||||
if ( ex.GetMessageString() && strlen( ex.GetMessageString() ))
|
||||
str << ": " << ex.GetMessageString();
|
||||
error(str);
|
||||
}
|
||||
catch (...) {
|
||||
SMESH_Comment str("Exception in netgen::OCCGenerateMesh()");
|
||||
str << " at " << netgen::multithread.task;
|
||||
error(str);
|
||||
}
|
||||
|
||||
// ----------------------------------------------------
|
||||
// Fill the SMESHDS with the generated nodes and faces
|
||||
// ----------------------------------------------------
|
||||
|
||||
int nbNodes = ngMesh->GetNP();
|
||||
int nbFaces = ngMesh->GetNSE();
|
||||
|
||||
int nbInputNodes = nodeVec.size()-1;
|
||||
nodeVec.resize( nbNodes+1, 0 );
|
||||
|
||||
// add nodes
|
||||
for ( int ngID = nbInputNodes + 1; ngID <= nbNodes; ++ngID )
|
||||
{
|
||||
const MeshPoint& ngPoint = ngMesh->Point( ngID );
|
||||
SMDS_MeshNode * node = meshDS->AddNode(ngPoint(0), ngPoint(1), ngPoint(2));
|
||||
nodeVec[ ngID ] = node;
|
||||
}
|
||||
|
||||
// create faces
|
||||
const bool reverse = false; //( aShape.Orientation() == TopAbs_REVERSED );
|
||||
int i,j;
|
||||
for ( i = 1; i <= nbFaces ; ++i )
|
||||
{
|
||||
const Element2d& elem = ngMesh->SurfaceElement(i);
|
||||
vector<const SMDS_MeshNode*> nodes( elem.GetNP() );
|
||||
for (j=1; j <= elem.GetNP(); ++j)
|
||||
else
|
||||
{
|
||||
int pind = elem.PNum(j);
|
||||
if ( pind < 1 )
|
||||
break;
|
||||
const SMDS_MeshNode* node = nodeVec[ pind ];
|
||||
if ( reverse )
|
||||
nodes[ nodes.size()-j ] = node;
|
||||
else
|
||||
nodes[ j-1 ] = node;
|
||||
if ( node->GetPosition()->GetTypeOfPosition() == SMDS_TOP_3DSPACE )
|
||||
Box<3> bb = occgeo.GetBoundingBox();
|
||||
bb.Increase (bb.Diam()/10);
|
||||
ngMesh->SetLocalH (bb.PMin(), bb.PMax(), netgen::mparam.grading);
|
||||
ngMesh->SetGlobalH (netgen::mparam.maxh);
|
||||
}
|
||||
|
||||
vector< const SMDS_MeshNode* > nodeVec;
|
||||
problem = aMesher.AddSegmentsToMesh( *ngMesh, occgeo, wires, helper, nodeVec );
|
||||
if ( problem && !problem->IsOK() )
|
||||
return error( problem );
|
||||
|
||||
// limit element size near existing segments
|
||||
TopTools_IndexedMapOfShape edgeMap, faceMap;
|
||||
TopExp::MapShapes( aMesh.GetShapeToMesh(), TopAbs_EDGE, edgeMap );
|
||||
for ( int iE = 1; iE <= edgeMap.Extent(); ++iE )
|
||||
{
|
||||
const TopoDS_Shape& edge = edgeMap( iE );
|
||||
if ( SMESH_Algo::isDegenerated( TopoDS::Edge( edge )) ||
|
||||
helper.IsSubShape( edge, aShape ))
|
||||
continue;
|
||||
SMESHDS_SubMesh* smDS = aMesh.GetMeshDS()->MeshElements( edge );
|
||||
if ( !smDS ) continue;
|
||||
SMDS_ElemIteratorPtr segIt = smDS->GetElements();
|
||||
while ( segIt->more() )
|
||||
{
|
||||
const PointGeomInfo& pgi = elem.GeomInfoPi(j);
|
||||
meshDS->SetNodeOnFace((SMDS_MeshNode*)node, faceID, pgi.u, pgi.v);
|
||||
const SMDS_MeshElement* seg = segIt->next();
|
||||
SMESH_TNodeXYZ n1 = seg->GetNode(0);
|
||||
SMESH_TNodeXYZ n2 = seg->GetNode(1);
|
||||
gp_XYZ p = 0.5 * ( n1 + n2 );
|
||||
netgen::Point3d pi(p.X(), p.Y(), p.Z());
|
||||
ngMesh->RestrictLocalH( pi, Max(( n1 - n2 ).Modulus(), netgen::mparam.minh ));
|
||||
}
|
||||
}
|
||||
if ( j > elem.GetNP() )
|
||||
{
|
||||
SMDS_MeshFace* face = 0;
|
||||
if ( elem.GetType() == TRIG )
|
||||
face = helper.AddFace(nodes[0],nodes[1],nodes[2]);
|
||||
else
|
||||
face = helper.AddFace(nodes[0],nodes[1],nodes[2],nodes[3]);
|
||||
}
|
||||
}
|
||||
|
||||
ngLib._isComputeOk = !err;
|
||||
// -------------------------
|
||||
// Generate surface mesh
|
||||
// -------------------------
|
||||
|
||||
startWith = MESHCONST_MESHSURFACE;
|
||||
endWith = MESHCONST_OPTSURFACE;
|
||||
|
||||
try {
|
||||
OCC_CATCH_SIGNALS;
|
||||
|
||||
#ifdef NETGEN_V5
|
||||
err = netgen::OCCGenerateMesh(occgeo, ngMesh, netgen::mparam, startWith, endWith);
|
||||
#else
|
||||
err = netgen::OCCGenerateMesh(occgeo, ngMesh, startWith, endWith, optstr);
|
||||
#endif
|
||||
if(netgen::multithread.terminate)
|
||||
return false;
|
||||
if ( err )
|
||||
error(SMESH_Comment("Error in netgen::OCCGenerateMesh() at ") << netgen::multithread.task);
|
||||
}
|
||||
catch (Standard_Failure& ex)
|
||||
{
|
||||
SMESH_Comment str("Exception in netgen::OCCGenerateMesh()");
|
||||
str << " at " << netgen::multithread.task
|
||||
<< ": " << ex.DynamicType()->Name();
|
||||
if ( ex.GetMessageString() && strlen( ex.GetMessageString() ))
|
||||
str << ": " << ex.GetMessageString();
|
||||
error(str);
|
||||
err = 1;
|
||||
}
|
||||
catch (...) {
|
||||
SMESH_Comment str("Exception in netgen::OCCGenerateMesh()");
|
||||
str << " at " << netgen::multithread.task;
|
||||
error(str);
|
||||
err = 1;
|
||||
}
|
||||
if ( err && isMESHCONST_ANALYSE )
|
||||
continue;
|
||||
|
||||
// ----------------------------------------------------
|
||||
// Fill the SMESHDS with the generated nodes and faces
|
||||
// ----------------------------------------------------
|
||||
|
||||
int nbNodes = ngMesh->GetNP();
|
||||
int nbFaces = ngMesh->GetNSE();
|
||||
|
||||
int nbInputNodes = nodeVec.size()-1;
|
||||
nodeVec.resize( nbNodes+1, 0 );
|
||||
|
||||
// add nodes
|
||||
for ( int ngID = nbInputNodes + 1; ngID <= nbNodes; ++ngID )
|
||||
{
|
||||
const MeshPoint& ngPoint = ngMesh->Point( ngID );
|
||||
SMDS_MeshNode * node = meshDS->AddNode(ngPoint(0), ngPoint(1), ngPoint(2));
|
||||
nodeVec[ ngID ] = node;
|
||||
}
|
||||
|
||||
// create faces
|
||||
const bool reverse = false; //( aShape.Orientation() == TopAbs_REVERSED );
|
||||
int i,j;
|
||||
for ( i = 1; i <= nbFaces ; ++i )
|
||||
{
|
||||
const Element2d& elem = ngMesh->SurfaceElement(i);
|
||||
vector<const SMDS_MeshNode*> nodes( elem.GetNP() );
|
||||
for (j=1; j <= elem.GetNP(); ++j)
|
||||
{
|
||||
int pind = elem.PNum(j);
|
||||
if ( pind < 1 )
|
||||
break;
|
||||
const SMDS_MeshNode* node = nodeVec[ pind ];
|
||||
if ( reverse )
|
||||
nodes[ nodes.size()-j ] = node;
|
||||
else
|
||||
nodes[ j-1 ] = node;
|
||||
if ( node->GetPosition()->GetTypeOfPosition() == SMDS_TOP_3DSPACE )
|
||||
{
|
||||
const PointGeomInfo& pgi = elem.GeomInfoPi(j);
|
||||
meshDS->SetNodeOnFace((SMDS_MeshNode*)node, faceID, pgi.u, pgi.v);
|
||||
}
|
||||
}
|
||||
if ( j > elem.GetNP() )
|
||||
{
|
||||
SMDS_MeshFace* face = 0;
|
||||
if ( elem.GetType() == TRIG )
|
||||
face = helper.AddFace(nodes[0],nodes[1],nodes[2]);
|
||||
else
|
||||
face = helper.AddFace(nodes[0],nodes[1],nodes[2],nodes[3]);
|
||||
}
|
||||
}
|
||||
|
||||
ngLib._isComputeOk = !err;
|
||||
break;
|
||||
|
||||
} // two attempts
|
||||
|
||||
return !err;
|
||||
}
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user