PyObject* FemMeshPy::addVolume(PyObject *args)
{
int n1,n2,n3,n4;
if (!PyArg_ParseTuple(args, "iiii",&n1,&n2,&n3,&n4))
return 0;
try {
SMESH_Mesh* mesh = getFemMeshPtr()->getSMesh();
SMESHDS_Mesh* meshDS = mesh->GetMeshDS();
const SMDS_MeshNode* node1 = meshDS->FindNode(n1);
const SMDS_MeshNode* node2 = meshDS->FindNode(n2);
const SMDS_MeshNode* node3 = meshDS->FindNode(n3);
const SMDS_MeshNode* node4 = meshDS->FindNode(n4);
if (!node1 || !node2 || !node3 || !node4)
throw std::runtime_error("Failed to get node of the given indices");
SMDS_MeshVolume* vol = meshDS->AddVolume(node1, node2, node3, node4);
if (!vol)
throw std::runtime_error("Failed to add volume");
return Py::new_reference_to(Py::Int(vol->GetID()));
}
catch (const std::exception& e) {
PyErr_SetString(PyExc_Exception, e.what());
return 0;
}
}
PyObject* FemMeshPy::addQuad(PyObject *args)
{
int n1,n2,n3,n4;
if (!PyArg_ParseTuple(args, "iiii",&n1,&n2,&n3,&n4))
return 0;
try {
SMESH_Mesh* mesh = getFemMeshPtr()->getSMesh();
SMESHDS_Mesh* meshDS = mesh->GetMeshDS();
const SMDS_MeshNode* node1 = meshDS->FindNode(n1);
const SMDS_MeshNode* node2 = meshDS->FindNode(n2);
const SMDS_MeshNode* node3 = meshDS->FindNode(n3);
const SMDS_MeshNode* node4 = meshDS->FindNode(n4);
if (!node1 || !node2 || !node3 || !node4)
throw std::runtime_error("Failed to get node of the given indices");
SMDS_MeshFace* face = meshDS->AddFace(node1, node2, node3, node4);
if (!face)
throw std::runtime_error("Failed to add quad");
return Py::new_reference_to(Py::Long(face->GetID()));
}
catch (const std::exception& e) {
PyErr_SetString(Base::BaseExceptionFreeCADError, e.what());
return 0;
}
}
SMESH_Mesh* SMESH_Hypothesis::GetMeshByPersistentID(int id)
{
StudyContextStruct* myStudyContext = _gen->GetStudyContext(_studyId);
map<int, SMESH_Mesh*>::iterator itm = itm = myStudyContext->mapMesh.begin();
for ( ; itm != myStudyContext->mapMesh.end(); itm++)
{
SMESH_Mesh* mesh = (*itm).second;
if ( mesh->GetMeshDS()->GetPersistentId() == id )
return mesh;
}
return 0;
}
PyObject* FemMeshPy::addNode(PyObject *args)
{
double x,y,z;
int i = -1;
if (PyArg_ParseTuple(args, "ddd",&x,&y,&z)){
try {
SMESH_Mesh* mesh = getFemMeshPtr()->getSMesh();
SMESHDS_Mesh* meshDS = mesh->GetMeshDS();
SMDS_MeshNode* node = meshDS->AddNode(x,y,z);
if (!node)
throw std::runtime_error("Failed to add node");
return Py::new_reference_to(Py::Int(node->GetID()));
}
catch (const std::exception& e) {
PyErr_SetString(Base::BaseExceptionFreeCADError, e.what());
return 0;
}
}
PyErr_Clear();
if (PyArg_ParseTuple(args, "dddi",&x,&y,&z,&i)){
try {
SMESH_Mesh* mesh = getFemMeshPtr()->getSMesh();
SMESHDS_Mesh* meshDS = mesh->GetMeshDS();
SMDS_MeshNode* node = meshDS->AddNodeWithID(x,y,z,i);
if (!node)
throw std::runtime_error("Failed to add node");
return Py::new_reference_to(Py::Int(node->GetID()));
}
catch (const std::exception& e) {
PyErr_SetString(Base::BaseExceptionFreeCADError, e.what());
return 0;
}
}
PyErr_SetString(PyExc_TypeError, "addNode() accepts:\n"
"-- addNode(x,y,z)\n"
"-- addNode(x,y,z,ElemId)\n");
return 0;
}
TSideVector StdMeshers_FaceSide::GetFaceWires(const TopoDS_Face& theFace,
SMESH_Mesh & theMesh,
const bool theIgnoreMediumNodes,
TError & theError)
{
TopoDS_Vertex V1;
list< TopoDS_Edge > edges;
list< int > nbEdgesInWires;
int nbWires = SMESH_Block::GetOrderedEdges (theFace, V1, edges, nbEdgesInWires);
// split list of all edges into separate wires
TSideVector wires( nbWires );
list< int >::iterator nbE = nbEdgesInWires.begin();
list< TopoDS_Edge >::iterator from, to;
from = to = edges.begin();
for ( int iW = 0; iW < nbWires; ++iW )
{
std::advance( to, *nbE++ );
list< TopoDS_Edge > wireEdges( from, to );
// assure that there is a node on the first vertex
// as StdMeshers_FaceSide::GetUVPtStruct() requires
while ( !SMESH_Algo::VertexNode( TopExp::FirstVertex( wireEdges.front(), true),
theMesh.GetMeshDS()))
{
wireEdges.splice(wireEdges.end(), wireEdges,
wireEdges.begin(), ++wireEdges.begin());
if ( from->IsSame( wireEdges.front() )) {
theError = TError
( new SMESH_ComputeError(COMPERR_BAD_INPUT_MESH,"No nodes on vertices"));
return TSideVector(0);
}
}
// find out side orientation, which is important if there are several wires (PAL19080)
bool isForward = true;
if ( nbWires > 1 ) {
TopExp_Explorer e( theFace, TopAbs_EDGE );
while ( ! e.Current().IsSame( wireEdges.back() ))
e.Next();
isForward = ( e.Current().Orientation() == wireEdges.back().Orientation() );
}
StdMeshers_FaceSide* wire = new StdMeshers_FaceSide( theFace, wireEdges, &theMesh,
isForward, theIgnoreMediumNodes);
wires[ iW ] = StdMeshers_FaceSidePtr( wire );
from = to;
}
return wires;
}
PyObject* FemMeshPy::addNode(PyObject *args)
{
double x,y,z;
if (!PyArg_ParseTuple(args, "ddd",&x,&y,&z))
return 0;
try {
SMESH_Mesh* mesh = getFemMeshPtr()->getSMesh();
SMESHDS_Mesh* meshDS = mesh->GetMeshDS();
SMDS_MeshNode* node = meshDS->AddNode(x,y,z);
if (!node)
throw std::runtime_error("Failed to add node");
return Py::new_reference_to(Py::Int(node->GetID()));
}
catch (const std::exception& e) {
PyErr_SetString(PyExc_Exception, e.what());
return 0;
}
}
PyObject* FemMeshPy::addEdge(PyObject *args)
{
int n1,n2;
if (!PyArg_ParseTuple(args, "ii",&n1,&n2))
return 0;
try {
SMESH_Mesh* mesh = getFemMeshPtr()->getSMesh();
SMESHDS_Mesh* meshDS = mesh->GetMeshDS();
const SMDS_MeshNode* node1 = meshDS->FindNode(n1);
const SMDS_MeshNode* node2 = meshDS->FindNode(n2);
if (!node1 || !node2)
throw std::runtime_error("Failed to get node of the given indices");
SMDS_MeshEdge* edge = meshDS->AddEdge(node1, node2);
if (!edge)
throw std::runtime_error("Failed to add edge");
return Py::new_reference_to(Py::Int(edge->GetID()));
}
catch (const std::exception& e) {
PyErr_SetString(PyExc_Exception, e.what());
return 0;
}
}
Mesh::MeshObject* Mesher::createMesh() const
{
// OCC standard mesher
if (method == Standard) {
Handle_StlMesh_Mesh aMesh = new StlMesh_Mesh();
if (!shape.IsNull()) {
BRepTools::Clean(shape);
#if OCC_VERSION_HEX >= 0x060801
BRepMesh_IncrementalMesh bMesh(shape, deflection, Standard_False, angularDeflection);
StlTransfer::RetrieveMesh(shape,aMesh);
#else
StlTransfer::BuildIncrementalMesh(shape, deflection,
#if OCC_VERSION_HEX >= 0x060503
Standard_True,
#endif
aMesh);
#endif
}
std::map<uint32_t, std::vector<std::size_t> > colorMap;
for (std::size_t i=0; i<colors.size(); i++) {
colorMap[colors[i]].push_back(i);
}
bool createSegm = (static_cast<int>(colors.size()) == aMesh->NbDomains());
MeshCore::MeshFacetArray faces;
faces.reserve(aMesh->NbTriangles());
std::set<Vertex> vertices;
Standard_Real x1, y1, z1;
Standard_Real x2, y2, z2;
Standard_Real x3, y3, z3;
std::vector< std::vector<unsigned long> > meshSegments;
std::size_t numMeshFaces = 0;
StlMesh_MeshExplorer xp(aMesh);
for (Standard_Integer nbd=1;nbd<=aMesh->NbDomains();nbd++) {
std::size_t numDomainFaces = 0;
for (xp.InitTriangle(nbd); xp.MoreTriangle(); xp.NextTriangle()) {
xp.TriangleVertices(x1,y1,z1,x2,y2,z2,x3,y3,z3);
std::set<Vertex>::iterator it;
MeshCore::MeshFacet face;
// 1st vertex
Vertex v1(x1,y1,z1);
it = vertices.find(v1);
if (it == vertices.end()) {
v1.i = vertices.size();
face._aulPoints[0] = v1.i;
vertices.insert(v1);
}
else {
face._aulPoints[0] = it->i;
}
// 2nd vertex
Vertex v2(x2,y2,z2);
it = vertices.find(v2);
if (it == vertices.end()) {
v2.i = vertices.size();
face._aulPoints[1] = v2.i;
vertices.insert(v2);
}
else {
face._aulPoints[1] = it->i;
}
// 3rd vertex
Vertex v3(x3,y3,z3);
it = vertices.find(v3);
if (it == vertices.end()) {
v3.i = vertices.size();
face._aulPoints[2] = v3.i;
vertices.insert(v3);
}
else {
face._aulPoints[2] = it->i;
}
// make sure that we don't insert invalid facets
if (face._aulPoints[0] != face._aulPoints[1] &&
face._aulPoints[1] != face._aulPoints[2] &&
face._aulPoints[2] != face._aulPoints[0]) {
faces.push_back(face);
numDomainFaces++;
}
}
// add a segment for the face
if (createSegm || this->segments) {
std::vector<unsigned long> segment(numDomainFaces);
std::generate(segment.begin(), segment.end(), Base::iotaGen<unsigned long>(numMeshFaces));
numMeshFaces += numDomainFaces;
meshSegments.push_back(segment);
}
}
MeshCore::MeshPointArray verts;
verts.resize(vertices.size());
for (auto it : vertices)
verts[it.i] = it.toPoint();
MeshCore::MeshKernel kernel;
kernel.Adopt(verts, faces, true);
Mesh::MeshObject* meshdata = new Mesh::MeshObject();
meshdata->swap(kernel);
if (createSegm) {
int index = 0;
for (auto it : colorMap) {
Mesh::Segment segm(meshdata, false);
for (auto jt : it.second) {
segm.addIndices(meshSegments[jt]);
}
segm.save(true);
std::stringstream str;
str << "patch" << index++;
segm.setName(str.str());
meshdata->addSegment(segm);
}
}
else {
for (auto it : meshSegments) {
meshdata->addSegment(it);
}
}
return meshdata;
}
#ifndef HAVE_SMESH
throw Base::Exception("SMESH is not available on this platform");
#else
std::list<SMESH_Hypothesis*> hypoth;
SMESH_Gen* meshgen = SMESH_Gen::get();
SMESH_Mesh* mesh = meshgen->CreateMesh(0, true);
int hyp=0;
switch (method) {
#if defined (HAVE_NETGEN)
case Netgen: {
NETGENPlugin_Hypothesis_2D* hyp2d = new NETGENPlugin_Hypothesis_2D(hyp++,0,meshgen);
if (fineness >=0 && fineness < 5) {
hyp2d->SetFineness(NETGENPlugin_Hypothesis_2D::Fineness(fineness));
}
// user defined values
else {
if (growthRate > 0)
hyp2d->SetGrowthRate(growthRate);
if (nbSegPerEdge > 0)
hyp2d->SetNbSegPerEdge(nbSegPerEdge);
if (nbSegPerRadius > 0)
hyp2d->SetNbSegPerRadius(nbSegPerRadius);
}
hyp2d->SetQuadAllowed(allowquad);
hyp2d->SetOptimize(optimize);
hyp2d->SetSecondOrder(secondOrder); // apply bisecting to create four triangles out of one
hypoth.push_back(hyp2d);
NETGENPlugin_NETGEN_2D* alg2d = new NETGENPlugin_NETGEN_2D(hyp++,0,meshgen);
hypoth.push_back(alg2d);
} break;
#endif
#if defined (HAVE_MEFISTO)
case Mefisto: {
if (maxLength > 0) {
StdMeshers_MaxLength* hyp1d = new StdMeshers_MaxLength(hyp++, 0, meshgen);
hyp1d->SetLength(maxLength);
hypoth.push_back(hyp1d);
}
else if (localLength > 0) {
StdMeshers_LocalLength* hyp1d = new StdMeshers_LocalLength(hyp++,0,meshgen);
hyp1d->SetLength(localLength);
hypoth.push_back(hyp1d);
}
else if (maxArea > 0) {
StdMeshers_MaxElementArea* hyp2d = new StdMeshers_MaxElementArea(hyp++,0,meshgen);
hyp2d->SetMaxArea(maxArea);
hypoth.push_back(hyp2d);
}
else if (deflection > 0) {
StdMeshers_Deflection1D* hyp1d = new StdMeshers_Deflection1D(hyp++,0,meshgen);
hyp1d->SetDeflection(deflection);
hypoth.push_back(hyp1d);
}
else if (minLen > 0 && maxLen > 0) {
StdMeshers_Arithmetic1D* hyp1d = new StdMeshers_Arithmetic1D(hyp++,0,meshgen);
hyp1d->SetLength(minLen, false);
hyp1d->SetLength(maxLen, true);
hypoth.push_back(hyp1d);
}
else {
StdMeshers_AutomaticLength* hyp1d = new StdMeshers_AutomaticLength(hyp++,0,meshgen);
hypoth.push_back(hyp1d);
}
{
StdMeshers_NumberOfSegments* hyp1d = new StdMeshers_NumberOfSegments(hyp++,0,meshgen);
hyp1d->SetNumberOfSegments(1);
hypoth.push_back(hyp1d);
}
if (regular) {
StdMeshers_Regular_1D* hyp1d = new StdMeshers_Regular_1D(hyp++,0,meshgen);
hypoth.push_back(hyp1d);
}
StdMeshers_TrianglePreference* hyp2d_1 = new StdMeshers_TrianglePreference(hyp++,0,meshgen);
hypoth.push_back(hyp2d_1);
StdMeshers_MEFISTO_2D* alg2d = new StdMeshers_MEFISTO_2D(hyp++,0,meshgen);
hypoth.push_back(alg2d);
} break;
#endif
default:
break;
}
// Set new cout
MeshingOutput stdcout;
std::streambuf* oldcout = std::cout.rdbuf(&stdcout);
// Apply the hypothesis and create the mesh
mesh->ShapeToMesh(shape);
for (int i=0; i<hyp;i++)
mesh->AddHypothesis(shape, i);
meshgen->Compute(*mesh, mesh->GetShapeToMesh());
// Restore old cout
std::cout.rdbuf(oldcout);
// build up the mesh structure
SMDS_FaceIteratorPtr aFaceIter = mesh->GetMeshDS()->facesIterator();
SMDS_NodeIteratorPtr aNodeIter = mesh->GetMeshDS()->nodesIterator();
MeshCore::MeshPointArray verts;
MeshCore::MeshFacetArray faces;
verts.reserve(mesh->NbNodes());
faces.reserve(mesh->NbFaces());
int index=0;
std::map<const SMDS_MeshNode*, int> mapNodeIndex;
for (;aNodeIter->more();) {
const SMDS_MeshNode* aNode = aNodeIter->next();
MeshCore::MeshPoint p;
p.Set((float)aNode->X(), (float)aNode->Y(), (float)aNode->Z());
verts.push_back(p);
mapNodeIndex[aNode] = index++;
}
for (;aFaceIter->more();) {
const SMDS_MeshFace* aFace = aFaceIter->next();
if (aFace->NbNodes() == 3) {
MeshCore::MeshFacet f;
for (int i=0; i<3;i++) {
const SMDS_MeshNode* node = aFace->GetNode(i);
f._aulPoints[i] = mapNodeIndex[node];
}
faces.push_back(f);
}
else if (aFace->NbNodes() == 4) {
MeshCore::MeshFacet f1, f2;
const SMDS_MeshNode* node0 = aFace->GetNode(0);
const SMDS_MeshNode* node1 = aFace->GetNode(1);
const SMDS_MeshNode* node2 = aFace->GetNode(2);
const SMDS_MeshNode* node3 = aFace->GetNode(3);
f1._aulPoints[0] = mapNodeIndex[node0];
f1._aulPoints[1] = mapNodeIndex[node1];
f1._aulPoints[2] = mapNodeIndex[node2];
f2._aulPoints[0] = mapNodeIndex[node0];
f2._aulPoints[1] = mapNodeIndex[node2];
f2._aulPoints[2] = mapNodeIndex[node3];
faces.push_back(f1);
faces.push_back(f2);
}
else if (aFace->NbNodes() == 6) {
MeshCore::MeshFacet f1, f2, f3, f4;
const SMDS_MeshNode* node0 = aFace->GetNode(0);
const SMDS_MeshNode* node1 = aFace->GetNode(1);
const SMDS_MeshNode* node2 = aFace->GetNode(2);
const SMDS_MeshNode* node3 = aFace->GetNode(3);
const SMDS_MeshNode* node4 = aFace->GetNode(4);
const SMDS_MeshNode* node5 = aFace->GetNode(5);
f1._aulPoints[0] = mapNodeIndex[node0];
f1._aulPoints[1] = mapNodeIndex[node3];
f1._aulPoints[2] = mapNodeIndex[node5];
f2._aulPoints[0] = mapNodeIndex[node1];
f2._aulPoints[1] = mapNodeIndex[node4];
f2._aulPoints[2] = mapNodeIndex[node3];
f3._aulPoints[0] = mapNodeIndex[node2];
f3._aulPoints[1] = mapNodeIndex[node5];
f3._aulPoints[2] = mapNodeIndex[node4];
f4._aulPoints[0] = mapNodeIndex[node3];
f4._aulPoints[1] = mapNodeIndex[node4];
f4._aulPoints[2] = mapNodeIndex[node5];
faces.push_back(f1);
faces.push_back(f2);
faces.push_back(f3);
faces.push_back(f4);
}
else if (aFace->NbNodes() == 8) {
MeshCore::MeshFacet f1, f2, f3, f4, f5, f6;
const SMDS_MeshNode* node0 = aFace->GetNode(0);
const SMDS_MeshNode* node1 = aFace->GetNode(1);
const SMDS_MeshNode* node2 = aFace->GetNode(2);
const SMDS_MeshNode* node3 = aFace->GetNode(3);
const SMDS_MeshNode* node4 = aFace->GetNode(4);
const SMDS_MeshNode* node5 = aFace->GetNode(5);
const SMDS_MeshNode* node6 = aFace->GetNode(6);
const SMDS_MeshNode* node7 = aFace->GetNode(7);
f1._aulPoints[0] = mapNodeIndex[node0];
f1._aulPoints[1] = mapNodeIndex[node4];
f1._aulPoints[2] = mapNodeIndex[node7];
f2._aulPoints[0] = mapNodeIndex[node1];
f2._aulPoints[1] = mapNodeIndex[node5];
f2._aulPoints[2] = mapNodeIndex[node4];
f3._aulPoints[0] = mapNodeIndex[node2];
f3._aulPoints[1] = mapNodeIndex[node6];
f3._aulPoints[2] = mapNodeIndex[node5];
f4._aulPoints[0] = mapNodeIndex[node3];
f4._aulPoints[1] = mapNodeIndex[node7];
f4._aulPoints[2] = mapNodeIndex[node6];
// Two solutions are possible:
// <4,6,7>, <4,5,6> or <4,5,7>, <5,6,7>
Base::Vector3d v4(node4->X(),node4->Y(),node4->Z());
Base::Vector3d v5(node5->X(),node5->Y(),node5->Z());
Base::Vector3d v6(node6->X(),node6->Y(),node6->Z());
Base::Vector3d v7(node7->X(),node7->Y(),node7->Z());
double dist46 = Base::DistanceP2(v4,v6);
double dist57 = Base::DistanceP2(v5,v7);
if (dist46 > dist57) {
f5._aulPoints[0] = mapNodeIndex[node4];
f5._aulPoints[1] = mapNodeIndex[node6];
f5._aulPoints[2] = mapNodeIndex[node7];
f6._aulPoints[0] = mapNodeIndex[node4];
f6._aulPoints[1] = mapNodeIndex[node5];
f6._aulPoints[2] = mapNodeIndex[node6];
}
else {
f5._aulPoints[0] = mapNodeIndex[node4];
f5._aulPoints[1] = mapNodeIndex[node5];
f5._aulPoints[2] = mapNodeIndex[node7];
f6._aulPoints[0] = mapNodeIndex[node5];
f6._aulPoints[1] = mapNodeIndex[node6];
f6._aulPoints[2] = mapNodeIndex[node7];
}
faces.push_back(f1);
faces.push_back(f2);
faces.push_back(f3);
faces.push_back(f4);
faces.push_back(f5);
faces.push_back(f6);
}
else {
Base::Console().Warning("Face with %d nodes ignored\n", aFace->NbNodes());
}
}
// clean up
TopoDS_Shape aNull;
mesh->ShapeToMesh(aNull);
mesh->Clear();
delete mesh;
for (std::list<SMESH_Hypothesis*>::iterator it = hypoth.begin(); it != hypoth.end(); ++it)
delete *it;
MeshCore::MeshKernel kernel;
kernel.Adopt(verts, faces, true);
Mesh::MeshObject* meshdata = new Mesh::MeshObject();
meshdata->swap(kernel);
return meshdata;
#endif // HAVE_SMESH
}
PyObject* FemMeshPy::addVolume(PyObject *args)
{
SMESH_Mesh* mesh = getFemMeshPtr()->getSMesh();
SMESHDS_Mesh* meshDS = mesh->GetMeshDS();
int n1,n2,n3,n4;
if (PyArg_ParseTuple(args, "iiii",&n1,&n2,&n3,&n4))
{
try {
const SMDS_MeshNode* node1 = meshDS->FindNode(n1);
const SMDS_MeshNode* node2 = meshDS->FindNode(n2);
const SMDS_MeshNode* node3 = meshDS->FindNode(n3);
const SMDS_MeshNode* node4 = meshDS->FindNode(n4);
if (!node1 || !node2 || !node3 || !node4)
throw std::runtime_error("Failed to get node of the given indices");
SMDS_MeshVolume* vol = meshDS->AddVolume(node1, node2, node3, node4);
if (!vol)
throw std::runtime_error("Failed to add volume");
return Py::new_reference_to(Py::Long(vol->GetID()));
}
catch (const std::exception& e) {
PyErr_SetString(Base::BaseExceptionFreeCADError, e.what());
return 0;
}
}
PyErr_Clear();
PyObject *obj;
int ElementId=-1;
if (PyArg_ParseTuple(args, "O!|i", &PyList_Type, &obj, &ElementId))
{
Py::List list(obj);
std::vector<const SMDS_MeshNode*> Nodes;
for (Py::List::iterator it = list.begin(); it != list.end(); ++it) {
#if PY_MAJOR_VERSION >= 3
Py::Long NoNr(*it);
#else
Py::Int NoNr(*it);
#endif
const SMDS_MeshNode* node = meshDS->FindNode(NoNr);
if (!node)
throw std::runtime_error("Failed to get node of the given indices");
Nodes.push_back(node);
}
SMDS_MeshVolume* vol=0;
if(ElementId != -1) {
switch(Nodes.size()){
case 4:
vol = meshDS->AddVolumeWithID(Nodes[0],Nodes[1],Nodes[2],Nodes[3],ElementId);
if (!vol)
throw std::runtime_error("Failed to add Tet4 volume with given ElementId");
break;
case 5:
vol = meshDS->AddVolumeWithID(Nodes[0],Nodes[1],Nodes[2],Nodes[3],Nodes[4],ElementId);
if (!vol)
throw std::runtime_error("Failed to add Pyra5 volume with given ElementId");
break;
case 6:
vol = meshDS->AddVolumeWithID(Nodes[0],Nodes[1],Nodes[2],Nodes[3],Nodes[4],Nodes[5],ElementId);
if (!vol)
throw std::runtime_error("Failed to add Penta6 volume with given ElementId");
break;
case 8:
vol = meshDS->AddVolumeWithID(Nodes[0],Nodes[1],Nodes[2],Nodes[3],Nodes[4],Nodes[5],Nodes[6],Nodes[7],ElementId);
if (!vol)
throw std::runtime_error("Failed to add Hexa8 volume with given ElementId");
break;
case 10:
vol = meshDS->AddVolumeWithID(Nodes[0],Nodes[1],Nodes[2],Nodes[3],Nodes[4],Nodes[5],Nodes[6],Nodes[7],Nodes[8],Nodes[9],ElementId);
if (!vol)
throw std::runtime_error("Failed to add Tet10 volume with given ElementId");
break;
case 13:
vol = meshDS->AddVolumeWithID(Nodes[0],Nodes[1],Nodes[2],Nodes[3],Nodes[4],Nodes[5],Nodes[6],Nodes[7],Nodes[8],Nodes[9],Nodes[10],Nodes[11],Nodes[12],ElementId);
if (!vol)
throw std::runtime_error("Failed to add Pyra13 volume with given ElementId");
break;
case 15:
vol = meshDS->AddVolumeWithID(Nodes[0],Nodes[1],Nodes[2],Nodes[3],Nodes[4],Nodes[5],Nodes[6],Nodes[7],Nodes[8],Nodes[9],Nodes[10],Nodes[11],Nodes[12],Nodes[13],Nodes[14],ElementId);
if (!vol)
throw std::runtime_error("Failed to add Penta15 volume with given ElementId");
break;
case 20:
vol = meshDS->AddVolumeWithID(Nodes[0],Nodes[1],Nodes[2],Nodes[3],Nodes[4],Nodes[5],Nodes[6],Nodes[7],Nodes[8],Nodes[9],Nodes[10],Nodes[11],Nodes[12],Nodes[13],Nodes[14],Nodes[15],Nodes[16],Nodes[17],Nodes[18],Nodes[19],ElementId);
if (!vol)
throw std::runtime_error("Failed to add Hexa20 volume with given ElementId");
break;
default: throw std::runtime_error("Unknown node count, [4|5|6|8|10|13|15|20] are allowed"); //unknown volume type
}
}else{
switch(Nodes.size()){
case 4:
vol = meshDS->AddVolume(Nodes[0],Nodes[1],Nodes[2],Nodes[3]);
if (!vol)
throw std::runtime_error("Failed to add Tet4 volume");
break;
case 5:
vol = meshDS->AddVolume(Nodes[0],Nodes[1],Nodes[2],Nodes[3],Nodes[4]);
if (!vol)
throw std::runtime_error("Failed to add Pyra5 volume");
break;
case 6:
vol = meshDS->AddVolume(Nodes[0],Nodes[1],Nodes[2],Nodes[3],Nodes[4],Nodes[5]);
if (!vol)
throw std::runtime_error("Failed to add Penta6 volume");
break;
case 8:
vol = meshDS->AddVolume(Nodes[0],Nodes[1],Nodes[2],Nodes[3],Nodes[4],Nodes[5],Nodes[6],Nodes[7]);
if (!vol)
throw std::runtime_error("Failed to add Hexa8 volume");
break;
case 10:
vol = meshDS->AddVolume(Nodes[0],Nodes[1],Nodes[2],Nodes[3],Nodes[4],Nodes[5],Nodes[6],Nodes[7],Nodes[8],Nodes[9]);
if (!vol)
throw std::runtime_error("Failed to add Tet10 volume");
break;
case 13:
vol = meshDS->AddVolume(Nodes[0],Nodes[1],Nodes[2],Nodes[3],Nodes[4],Nodes[5],Nodes[6],Nodes[7],Nodes[8],Nodes[9],Nodes[10],Nodes[11],Nodes[12]);
if (!vol)
throw std::runtime_error("Failed to add Pyra13 volume");
break;
case 15:
vol = meshDS->AddVolume(Nodes[0],Nodes[1],Nodes[2],Nodes[3],Nodes[4],Nodes[5],Nodes[6],Nodes[7],Nodes[8],Nodes[9],Nodes[10],Nodes[11],Nodes[12],Nodes[13],Nodes[14]);
if (!vol)
throw std::runtime_error("Failed to add Penta15 volume");
break;
case 20:
vol = meshDS->AddVolume(Nodes[0],Nodes[1],Nodes[2],Nodes[3],Nodes[4],Nodes[5],Nodes[6],Nodes[7],Nodes[8],Nodes[9],Nodes[10],Nodes[11],Nodes[12],Nodes[13],Nodes[14],Nodes[15],Nodes[16],Nodes[17],Nodes[18],Nodes[19]);
if (!vol)
throw std::runtime_error("Failed to add Hexa20 volume");
break;
default: throw std::runtime_error("Unknown node count, [4|5|6|8|10|13|15|20] are allowed"); //unknown volume type
}
}
return Py::new_reference_to(Py::Long(vol->GetID()));
}
PyErr_SetString(PyExc_TypeError, "addVolume accepts:\n"
"-- int,int,int,int\n"
"-- [4|5|6|8|10|13|15|20 int],[int]\n");
return 0;
}
PyObject* FemMeshPy::addEdge(PyObject *args)
{
SMESH_Mesh* mesh = getFemMeshPtr()->getSMesh();
SMESHDS_Mesh* meshDS = mesh->GetMeshDS();
int n1,n2;
if (PyArg_ParseTuple(args, "ii",&n1,&n2)) {
try {
const SMDS_MeshNode* node1 = meshDS->FindNode(n1);
const SMDS_MeshNode* node2 = meshDS->FindNode(n2);
if (!node1 || !node2)
throw std::runtime_error("Failed to get node of the given indices");
SMDS_MeshEdge* edge = meshDS->AddEdge(node1, node2);
if (!edge)
throw std::runtime_error("Failed to add edge");
return Py::new_reference_to(Py::Long(edge->GetID()));
}
catch (const std::exception& e) {
PyErr_SetString(Base::BaseExceptionFreeCADError, e.what());
return 0;
}
}
PyErr_Clear();
PyObject *obj;
int ElementId=-1;
if (PyArg_ParseTuple(args, "O!|i", &PyList_Type, &obj, &ElementId))
{
Py::List list(obj);
std::vector<const SMDS_MeshNode*> Nodes;
for (Py::List::iterator it = list.begin(); it != list.end(); ++it) {
#if PY_MAJOR_VERSION >= 3
Py::Long NoNr(*it);
#else
Py::Int NoNr(*it);
#endif
const SMDS_MeshNode* node = meshDS->FindNode(NoNr);
if (!node)
throw std::runtime_error("Failed to get node of the given indices");
Nodes.push_back(node);
}
SMDS_MeshEdge* edge=0;
if(ElementId != -1) {
switch(Nodes.size()){
case 2:
edge = meshDS->AddEdgeWithID(Nodes[0],Nodes[1],ElementId);
if (!edge)
throw std::runtime_error("Failed to add edge with given ElementId");
break;
case 3:
edge = meshDS->AddEdgeWithID(Nodes[0],Nodes[1],Nodes[2],ElementId);
if (!edge)
throw std::runtime_error("Failed to add edge with given ElementId");
break;
default:
throw std::runtime_error("Unknown node count, [2|3] are allowed"); //unknown edge type
}
}
else {
switch(Nodes.size()){
case 2:
edge = meshDS->AddEdge(Nodes[0],Nodes[1]);
if (!edge)
throw std::runtime_error("Failed to add edge");
break;
case 3:
edge = meshDS->AddEdge(Nodes[0],Nodes[1],Nodes[2]);
if (!edge)
throw std::runtime_error("Failed to add edge");
break;
default:
throw std::runtime_error("Unknown node count, [2|3] are allowed"); //unknown edge type
}
}
#if PY_MAJOR_VERSION >= 3
return Py::new_reference_to(Py::Long(edge->GetID()));
#else
return Py::new_reference_to(Py::Int(edge->GetID()));
#endif
}
PyErr_SetString(PyExc_TypeError, "addEdge accepts:\n"
"-- int,int\n"
"-- [2|3],[int]\n");
return 0;
}
PyObject* FemMeshPy::addFace(PyObject *args)
{
SMESH_Mesh* mesh = getFemMeshPtr()->getSMesh();
SMESHDS_Mesh* meshDS = mesh->GetMeshDS();
int n1,n2,n3;
if (PyArg_ParseTuple(args, "iii",&n1,&n2,&n3))
{
// old form, deprecated
try {
const SMDS_MeshNode* node1 = meshDS->FindNode(n1);
const SMDS_MeshNode* node2 = meshDS->FindNode(n2);
const SMDS_MeshNode* node3 = meshDS->FindNode(n3);
if (!node1 || !node2 || !node3)
throw std::runtime_error("Failed to get node of the given indices");
SMDS_MeshFace* face = meshDS->AddFace(node1, node2, node3);
if (!face)
throw std::runtime_error("Failed to add face");
return Py::new_reference_to(Py::Long(face->GetID()));
}
catch (const std::exception& e) {
PyErr_SetString(Base::BaseExceptionFreeCADError, e.what());
return 0;
}
}
PyErr_Clear();
PyObject *obj;
int ElementId=-1;
if (PyArg_ParseTuple(args, "O!|i", &PyList_Type, &obj, &ElementId))
{
Py::List list(obj);
std::vector<const SMDS_MeshNode*> Nodes;
for (Py::List::iterator it = list.begin(); it != list.end(); ++it) {
#if PY_MAJOR_VERSION >= 3
Py::Long NoNr(*it);
#else
Py::Int NoNr(*it);
#endif
const SMDS_MeshNode* node = meshDS->FindNode(NoNr);
if (!node)
throw std::runtime_error("Failed to get node of the given indices");
Nodes.push_back(node);
}
SMDS_MeshFace* face=0;
if(ElementId != -1) {
switch(Nodes.size()){
case 3:
face = meshDS->AddFaceWithID(Nodes[0],Nodes[1],Nodes[2],ElementId);
if (!face)
throw std::runtime_error("Failed to add triangular face with given ElementId");
break;
case 4:
face = meshDS->AddFaceWithID(Nodes[0],Nodes[1],Nodes[2],Nodes[3],ElementId);
if (!face)
throw std::runtime_error("Failed to add face with given ElementId");
break;
case 6:
face = meshDS->AddFaceWithID(Nodes[0],Nodes[1],Nodes[2],Nodes[3],Nodes[4],Nodes[5],ElementId);
if (!face)
throw std::runtime_error("Failed to add face with given ElementId");
break;
case 8:
face = meshDS->AddFaceWithID(Nodes[0],Nodes[1],Nodes[2],Nodes[3],Nodes[4],Nodes[5],Nodes[6],Nodes[7],ElementId);
if (!face)
throw std::runtime_error("Failed to add face with given ElementId");
break;
default:
throw std::runtime_error("Unknown node count, [3|4|6|8] are allowed"); //unknown face type
}
}else{
switch(Nodes.size()){
case 3:
face = meshDS->AddFace(Nodes[0],Nodes[1],Nodes[2]);
if (!face)
throw std::runtime_error("Failed to add triangular face");
break;
case 4:
face = meshDS->AddFace(Nodes[0],Nodes[1],Nodes[2],Nodes[3]);
if (!face)
throw std::runtime_error("Failed to add face");
break;
case 6:
face = meshDS->AddFace(Nodes[0],Nodes[1],Nodes[2],Nodes[3],Nodes[4],Nodes[5]);
if (!face)
throw std::runtime_error("Failed to add face");
break;
case 8:
face = meshDS->AddFace(Nodes[0],Nodes[1],Nodes[2],Nodes[3],Nodes[4],Nodes[5],Nodes[6],Nodes[7]);
if (!face)
throw std::runtime_error("Failed to add face");
break;
default:
throw std::runtime_error("Unknown node count, [4|5|6|8] are allowed"); //unknown face type
}
}
return Py::new_reference_to(Py::Long(face->GetID()));
}
PyErr_SetString(PyExc_TypeError, "addFace accepts:\n"
"-- int,int,int\n"
"-- [3|4|6|8 int],[int]\n");
return 0;
}
bool StdMeshers_CompositeSegment_1D::Compute(SMESH_Mesh & aMesh,
const TopoDS_Shape & aShape)
{
TopoDS_Edge edge = TopoDS::Edge( aShape );
SMESHDS_Mesh * meshDS = aMesh.GetMeshDS();
// Get edges to be discretized as a whole
TopoDS_Face nullFace;
auto_ptr< StdMeshers_FaceSide > side( GetFaceSide(aMesh, edge, nullFace, true ));
//side->dump("IN COMPOSITE SEG");
if ( side->NbEdges() < 2 )
return StdMeshers_Regular_1D::Compute( aMesh, aShape );
// update segment lenght computed by StdMeshers_AutomaticLength
const list <const SMESHDS_Hypothesis * > & hyps = GetUsedHypothesis(aMesh, aShape);
if ( !hyps.empty() ) {
StdMeshers_AutomaticLength * autoLenHyp = const_cast<StdMeshers_AutomaticLength *>
(dynamic_cast <const StdMeshers_AutomaticLength * >(hyps.front()));
if ( autoLenHyp )
_value[ BEG_LENGTH_IND ]= autoLenHyp->GetLength( &aMesh, side->Length() );
}
// Compute node parameters
auto_ptr< BRepAdaptor_CompCurve > C3d ( side->GetCurve3d() );
double f = C3d->FirstParameter(), l = C3d->LastParameter();
list< double > params;
if ( !computeInternalParameters ( aMesh, *C3d, side->Length(), f, l, params, false ))
return false;
// Redistribute parameters near ends
TopoDS_Vertex VFirst = side->FirstVertex();
TopoDS_Vertex VLast = side->LastVertex();
redistributeNearVertices( aMesh, *C3d, side->Length(), params, VFirst, VLast );
params.push_front(f);
params.push_back(l);
int nbNodes = params.size();
// Create mesh
const SMDS_MeshNode * nFirst = SMESH_Algo::VertexNode( VFirst, meshDS );
const SMDS_MeshNode * nLast = SMESH_Algo::VertexNode( VLast, meshDS );
if (!nFirst)
return error(COMPERR_BAD_INPUT_MESH, TComm("No node on vertex ")
<<meshDS->ShapeToIndex(VFirst));
if (!nLast)
return error(COMPERR_BAD_INPUT_MESH, TComm("No node on vertex ")
<<meshDS->ShapeToIndex(VLast));
vector<const SMDS_MeshNode*> nodes( nbNodes, (const SMDS_MeshNode*)0 );
nodes.front() = nFirst;
nodes.back() = nLast;
// create internal nodes
list< double >::iterator parIt = params.begin();
double prevPar = *parIt;
Standard_Real u;
for ( int iN = 0; parIt != params.end(); ++iN, ++parIt)
{
if ( !nodes[ iN ] ) {
gp_Pnt p = C3d->Value( *parIt );
SMDS_MeshNode* n = meshDS->AddNode( p.X(), p.Y(), p.Z());
C3d->Edge( *parIt, edge, u );
meshDS->SetNodeOnEdge( n, edge, u );
// cout << "new NODE: par="<<*parIt<<" ePar="<<u<<" e="<<edge.TShape().operator->()
// << " " << n << endl;
nodes[ iN ] = n;
}
// create edges
if ( iN ) {
double mPar = ( prevPar + *parIt )/2;
if ( _quadraticMesh ) {
// create medium node
double segLen = GCPnts_AbscissaPoint::Length(*C3d, prevPar, *parIt);
GCPnts_AbscissaPoint ruler( *C3d, segLen/2., prevPar );
if ( ruler.IsDone() )
mPar = ruler.Parameter();
gp_Pnt p = C3d->Value( mPar );
SMDS_MeshNode* n = meshDS->AddNode( p.X(), p.Y(), p.Z());
//cout << "new NODE "<< n << endl;
meshDS->SetNodeOnEdge( n, edge, u );
SMDS_MeshEdge * seg = meshDS->AddEdge(nodes[ iN-1 ], nodes[ iN ], n);
meshDS->SetMeshElementOnShape(seg, edge);
}
else {
C3d->Edge( mPar, edge, u );
SMDS_MeshEdge * seg = meshDS->AddEdge(nodes[ iN-1 ], nodes[ iN ]);
meshDS->SetMeshElementOnShape(seg, edge);
}
}
prevPar = *parIt;
}
// remove nodes on internal vertices
for ( int iE = 1; iE < side->NbEdges(); ++iE )
{
TopoDS_Vertex V = side->FirstVertex( iE );
while ( const SMDS_MeshNode * n = SMESH_Algo::VertexNode( V, meshDS ))
meshDS->RemoveNode( n );
}
// Update submeshes state for all edges and internal vertices,
// make them look computed even if none edge or node is set on them
careOfSubMeshes( *side, _EventListener );
return true;
}
bool SMESH_Gen::IsGlobalHypothesis(const SMESH_Hypothesis* theHyp, SMESH_Mesh& aMesh)
{
SMESH_HypoFilter filter( SMESH_HypoFilter::Is( theHyp ));
return aMesh.GetHypothesis( aMesh.GetMeshDS()->ShapeToMesh(), filter, false );
}
Mesh::MeshObject* Mesher::createMesh() const
{
#ifndef HAVE_SMESH
throw Base::Exception("SMESH is not available on this platform");
#else
std::list<SMESH_Hypothesis*> hypoth;
SMESH_Gen* meshgen = SMESH_Gen::get();
SMESH_Mesh* mesh = meshgen->CreateMesh(0, true);
int hyp=0;
switch (method) {
#if defined (HAVE_NETGEN)
case Netgen: {
NETGENPlugin_Hypothesis_2D* hyp2d = new NETGENPlugin_Hypothesis_2D(hyp++,0,meshgen);
if (fineness >=0 && fineness < 5) {
hyp2d->SetFineness(NETGENPlugin_Hypothesis_2D::Fineness(fineness));
}
// user defined values
else {
if (growthRate > 0)
hyp2d->SetGrowthRate(growthRate);
if (nbSegPerEdge > 0)
hyp2d->SetNbSegPerEdge(nbSegPerEdge);
if (nbSegPerRadius > 0)
hyp2d->SetNbSegPerRadius(nbSegPerRadius);
}
hyp2d->SetQuadAllowed(allowquad);
hyp2d->SetOptimize(optimize);
hyp2d->SetSecondOrder(secondOrder); // apply bisecting to create four triangles out of one
hypoth.push_back(hyp2d);
NETGENPlugin_NETGEN_2D* alg2d = new NETGENPlugin_NETGEN_2D(hyp++,0,meshgen);
hypoth.push_back(alg2d);
} break;
#endif
#if defined (HAVE_MEFISTO)
case Mefisto: {
if (maxLength > 0) {
StdMeshers_MaxLength* hyp1d = new StdMeshers_MaxLength(hyp++, 0, meshgen);
hyp1d->SetLength(maxLength);
hypoth.push_back(hyp1d);
}
else if (localLength > 0) {
StdMeshers_LocalLength* hyp1d = new StdMeshers_LocalLength(hyp++,0,meshgen);
hyp1d->SetLength(localLength);
hypoth.push_back(hyp1d);
}
else if (maxArea > 0) {
StdMeshers_MaxElementArea* hyp2d = new StdMeshers_MaxElementArea(hyp++,0,meshgen);
hyp2d->SetMaxArea(maxArea);
hypoth.push_back(hyp2d);
}
else if (deflection > 0) {
StdMeshers_Deflection1D* hyp1d = new StdMeshers_Deflection1D(hyp++,0,meshgen);
hyp1d->SetDeflection(deflection);
hypoth.push_back(hyp1d);
}
else if (minLen > 0 && maxLen > 0) {
StdMeshers_Arithmetic1D* hyp1d = new StdMeshers_Arithmetic1D(hyp++,0,meshgen);
hyp1d->SetLength(minLen, false);
hyp1d->SetLength(maxLen, true);
hypoth.push_back(hyp1d);
}
else {
StdMeshers_AutomaticLength* hyp1d = new StdMeshers_AutomaticLength(hyp++,0,meshgen);
hypoth.push_back(hyp1d);
}
{
StdMeshers_NumberOfSegments* hyp1d = new StdMeshers_NumberOfSegments(hyp++,0,meshgen);
hyp1d->SetNumberOfSegments(1);
hypoth.push_back(hyp1d);
}
if (regular) {
StdMeshers_Regular_1D* hyp1d = new StdMeshers_Regular_1D(hyp++,0,meshgen);
hypoth.push_back(hyp1d);
}
StdMeshers_TrianglePreference* hyp2d_1 = new StdMeshers_TrianglePreference(hyp++,0,meshgen);
hypoth.push_back(hyp2d_1);
StdMeshers_MEFISTO_2D* alg2d = new StdMeshers_MEFISTO_2D(hyp++,0,meshgen);
hypoth.push_back(alg2d);
} break;
#endif
default:
break;
}
// Set new cout
MeshingOutput stdcout;
std::streambuf* oldcout = std::cout.rdbuf(&stdcout);
// Apply the hypothesis and create the mesh
mesh->ShapeToMesh(shape);
for (int i=0; i<hyp;i++)
mesh->AddHypothesis(shape, i);
meshgen->Compute(*mesh, mesh->GetShapeToMesh());
// Restore old cout
std::cout.rdbuf(oldcout);
// build up the mesh structure
SMDS_FaceIteratorPtr aFaceIter = mesh->GetMeshDS()->facesIterator();
SMDS_NodeIteratorPtr aNodeIter = mesh->GetMeshDS()->nodesIterator();
MeshCore::MeshPointArray verts;
MeshCore::MeshFacetArray faces;
verts.reserve(mesh->NbNodes());
faces.reserve(mesh->NbFaces());
int index=0;
std::map<const SMDS_MeshNode*, int> mapNodeIndex;
for (;aNodeIter->more();) {
const SMDS_MeshNode* aNode = aNodeIter->next();
MeshCore::MeshPoint p;
p.Set((float)aNode->X(), (float)aNode->Y(), (float)aNode->Z());
verts.push_back(p);
mapNodeIndex[aNode] = index++;
}
for (;aFaceIter->more();) {
const SMDS_MeshFace* aFace = aFaceIter->next();
if (aFace->NbNodes() == 3) {
MeshCore::MeshFacet f;
for (int i=0; i<3;i++) {
const SMDS_MeshNode* node = aFace->GetNode(i);
f._aulPoints[i] = mapNodeIndex[node];
}
faces.push_back(f);
}
else if (aFace->NbNodes() == 4) {
MeshCore::MeshFacet f1, f2;
const SMDS_MeshNode* node0 = aFace->GetNode(0);
const SMDS_MeshNode* node1 = aFace->GetNode(1);
const SMDS_MeshNode* node2 = aFace->GetNode(2);
const SMDS_MeshNode* node3 = aFace->GetNode(3);
f1._aulPoints[0] = mapNodeIndex[node0];
f1._aulPoints[1] = mapNodeIndex[node1];
f1._aulPoints[2] = mapNodeIndex[node2];
f2._aulPoints[0] = mapNodeIndex[node0];
f2._aulPoints[1] = mapNodeIndex[node2];
f2._aulPoints[2] = mapNodeIndex[node3];
faces.push_back(f1);
faces.push_back(f2);
}
else if (aFace->NbNodes() == 6) {
MeshCore::MeshFacet f1, f2, f3, f4;
const SMDS_MeshNode* node0 = aFace->GetNode(0);
const SMDS_MeshNode* node1 = aFace->GetNode(1);
const SMDS_MeshNode* node2 = aFace->GetNode(2);
const SMDS_MeshNode* node3 = aFace->GetNode(3);
const SMDS_MeshNode* node4 = aFace->GetNode(4);
const SMDS_MeshNode* node5 = aFace->GetNode(5);
f1._aulPoints[0] = mapNodeIndex[node0];
f1._aulPoints[1] = mapNodeIndex[node3];
f1._aulPoints[2] = mapNodeIndex[node5];
f2._aulPoints[0] = mapNodeIndex[node1];
f2._aulPoints[1] = mapNodeIndex[node4];
f2._aulPoints[2] = mapNodeIndex[node3];
f3._aulPoints[0] = mapNodeIndex[node2];
f3._aulPoints[1] = mapNodeIndex[node5];
f3._aulPoints[2] = mapNodeIndex[node4];
f4._aulPoints[0] = mapNodeIndex[node3];
f4._aulPoints[1] = mapNodeIndex[node4];
f4._aulPoints[2] = mapNodeIndex[node5];
faces.push_back(f1);
faces.push_back(f2);
faces.push_back(f3);
faces.push_back(f4);
}
else if (aFace->NbNodes() == 8) {
MeshCore::MeshFacet f1, f2, f3, f4, f5, f6;
const SMDS_MeshNode* node0 = aFace->GetNode(0);
const SMDS_MeshNode* node1 = aFace->GetNode(1);
const SMDS_MeshNode* node2 = aFace->GetNode(2);
const SMDS_MeshNode* node3 = aFace->GetNode(3);
const SMDS_MeshNode* node4 = aFace->GetNode(4);
const SMDS_MeshNode* node5 = aFace->GetNode(5);
const SMDS_MeshNode* node6 = aFace->GetNode(6);
const SMDS_MeshNode* node7 = aFace->GetNode(7);
f1._aulPoints[0] = mapNodeIndex[node0];
f1._aulPoints[1] = mapNodeIndex[node4];
f1._aulPoints[2] = mapNodeIndex[node7];
f2._aulPoints[0] = mapNodeIndex[node1];
f2._aulPoints[1] = mapNodeIndex[node5];
f2._aulPoints[2] = mapNodeIndex[node4];
f3._aulPoints[0] = mapNodeIndex[node2];
f3._aulPoints[1] = mapNodeIndex[node6];
f3._aulPoints[2] = mapNodeIndex[node5];
f4._aulPoints[0] = mapNodeIndex[node3];
f4._aulPoints[1] = mapNodeIndex[node7];
f4._aulPoints[2] = mapNodeIndex[node6];
// Two solutions are possible:
// <4,6,7>, <4,5,6> or <4,5,7>, <5,6,7>
Base::Vector3d v4(node4->X(),node4->Y(),node4->Z());
Base::Vector3d v5(node5->X(),node5->Y(),node5->Z());
Base::Vector3d v6(node6->X(),node6->Y(),node6->Z());
Base::Vector3d v7(node7->X(),node7->Y(),node7->Z());
double dist46 = Base::DistanceP2(v4,v6);
double dist57 = Base::DistanceP2(v5,v7);
if (dist46 > dist57) {
f5._aulPoints[0] = mapNodeIndex[node4];
f5._aulPoints[1] = mapNodeIndex[node6];
f5._aulPoints[2] = mapNodeIndex[node7];
f6._aulPoints[0] = mapNodeIndex[node4];
f6._aulPoints[1] = mapNodeIndex[node5];
f6._aulPoints[2] = mapNodeIndex[node6];
}
else {
f5._aulPoints[0] = mapNodeIndex[node4];
f5._aulPoints[1] = mapNodeIndex[node5];
f5._aulPoints[2] = mapNodeIndex[node7];
f6._aulPoints[0] = mapNodeIndex[node5];
f6._aulPoints[1] = mapNodeIndex[node6];
f6._aulPoints[2] = mapNodeIndex[node7];
}
faces.push_back(f1);
faces.push_back(f2);
faces.push_back(f3);
faces.push_back(f4);
faces.push_back(f5);
faces.push_back(f6);
}
else {
Base::Console().Warning("Face with %d nodes ignored\n", aFace->NbNodes());
}
}
// clean up
TopoDS_Shape aNull;
mesh->ShapeToMesh(aNull);
mesh->Clear();
delete mesh;
for (std::list<SMESH_Hypothesis*>::iterator it = hypoth.begin(); it != hypoth.end(); ++it)
delete *it;
MeshCore::MeshKernel kernel;
kernel.Adopt(verts, faces, true);
Mesh::MeshObject* meshdata = new Mesh::MeshObject();
meshdata->swap(kernel);
return meshdata;
#endif // HAVE_SMESH
}
bool NETGENPlugin_NETGEN_2D_ONLY::Compute(SMESH_Mesh& aMesh,
const TopoDS_Shape& aShape)
{
netgen::multithread.terminate = 0;
//netgen::multithread.task = "Surface meshing";
SMESHDS_Mesh* meshDS = aMesh.GetMeshDS();
SMESH_MesherHelper helper(aMesh);
helper.SetElementsOnShape( true );
NETGENPlugin_NetgenLibWrapper ngLib;
ngLib._isComputeOk = false;
netgen::Mesh ngMeshNoLocSize;
#if NETGEN_VERSION < 6
netgen::Mesh * ngMeshes[2] = { (netgen::Mesh*) ngLib._ngMesh, & ngMeshNoLocSize };
#else
netgen::Mesh * ngMeshes[2] = { (netgen::Mesh*) ngLib._ngMesh.get(), & ngMeshNoLocSize };
#endif
netgen::OCCGeometry occgeoComm;
// min / max sizes are set as follows:
// if ( _hypParameters )
// min and max are defined by the user
// else if ( _hypLengthFromEdges )
// min = aMesher.GetDefaultMinSize()
// max = average segment len of a FACE
// else if ( _hypMaxElementArea )
// min = aMesher.GetDefaultMinSize()
// max = f( _hypMaxElementArea )
// else
// min = aMesher.GetDefaultMinSize()
// max = max segment len of a FACE
NETGENPlugin_Mesher aMesher( &aMesh, aShape, /*isVolume=*/false);
aMesher.SetParameters( _hypParameters ); // _hypParameters -> netgen::mparam
const bool toOptimize = _hypParameters ? _hypParameters->GetOptimize() : true;
if ( _hypMaxElementArea )
{
netgen::mparam.maxh = sqrt( 2. * _hypMaxElementArea->GetMaxArea() / sqrt(3.0) );
}
if ( _hypQuadranglePreference )
netgen::mparam.quad = true;
// local size is common for all FACEs in aShape?
const bool isCommonLocalSize = ( !_hypLengthFromEdges && !_hypMaxElementArea && netgen::mparam.uselocalh );
const bool isDefaultHyp = ( !_hypLengthFromEdges && !_hypMaxElementArea && !_hypParameters );
if ( isCommonLocalSize ) // compute common local size in ngMeshes[0]
{
//list< SMESH_subMesh* > meshedSM[4]; --> all sub-shapes are added to occgeoComm
aMesher.PrepareOCCgeometry( occgeoComm, aShape, aMesh );//, meshedSM );
// local size set at MESHCONST_ANALYSE step depends on
// minh, face_maxh, grading and curvaturesafety; find minh if not set by the user
if ( !_hypParameters || netgen::mparam.minh < DBL_MIN )
{
if ( !_hypParameters )
netgen::mparam.maxh = occgeoComm.GetBoundingBox().Diam() / 3.;
netgen::mparam.minh = aMesher.GetDefaultMinSize( aShape, netgen::mparam.maxh );
}
// set local size depending on curvature and NOT closeness of EDGEs
netgen::occparam.resthcloseedgeenable = false;
//netgen::occparam.resthcloseedgefac = 1.0 + netgen::mparam.grading;
occgeoComm.face_maxh = netgen::mparam.maxh;
netgen::OCCSetLocalMeshSize( occgeoComm, *ngMeshes[0] );
occgeoComm.emap.Clear();
occgeoComm.vmap.Clear();
// set local size according to size of existing segments
const double factor = netgen::occparam.resthcloseedgefac;
TopTools_IndexedMapOfShape edgeMap;
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 = meshDS->MeshElements( edge );
if ( !smDS ) continue;
SMDS_ElemIteratorPtr segIt = smDS->GetElements();
while ( segIt->more() )
{
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());
ngMeshes[0]->RestrictLocalH( pi, factor * ( n1 - n2 ).Modulus() );
}
}
}
netgen::mparam.uselocalh = toOptimize; // restore as it is used at surface optimization
// ==================
// Loop on all FACEs
// ==================
vector< const SMDS_MeshNode* > nodeVec;
TopExp_Explorer fExp( aShape, TopAbs_FACE );
for ( int iF = 0; fExp.More(); fExp.Next(), ++iF )
{
TopoDS_Face F = TopoDS::Face( fExp.Current() /*.Oriented( TopAbs_FORWARD )*/);
int faceID = meshDS->ShapeToIndex( F );
SMESH_ComputeErrorPtr& faceErr = aMesh.GetSubMesh( F )->GetComputeError();
_quadraticMesh = helper.IsQuadraticSubMesh( F );
const bool ignoreMediumNodes = _quadraticMesh;
// build viscous layers if required
if ( F.Orientation() != TopAbs_FORWARD &&
F.Orientation() != TopAbs_REVERSED )
F.Orientation( TopAbs_FORWARD ); // avoid pb with TopAbs_INTERNAL
SMESH_ProxyMesh::Ptr proxyMesh = StdMeshers_ViscousLayers2D::Compute( aMesh, F );
if ( !proxyMesh )
continue;
// ------------------------
// get all EDGEs of a FACE
// ------------------------
TSideVector wires =
StdMeshers_FaceSide::GetFaceWires( F, aMesh, ignoreMediumNodes, faceErr, proxyMesh );
if ( faceErr && !faceErr->IsOK() )
continue;
int nbWires = wires.size();
if ( nbWires == 0 )
{
faceErr.reset
( new SMESH_ComputeError
( COMPERR_ALGO_FAILED, "Problem in StdMeshers_FaceSide::GetFaceWires()" ));
continue;
}
if ( wires[0]->NbSegments() < 3 ) // ex: a circle with 2 segments
{
faceErr.reset
( new SMESH_ComputeError
( COMPERR_BAD_INPUT_MESH, SMESH_Comment("Too few segments: ")<<wires[0]->NbSegments()) );
continue;
}
// ----------------------
// compute maxh of a FACE
// ----------------------
if ( !_hypParameters )
{
double edgeLength = 0;
if (_hypLengthFromEdges )
{
// compute edgeLength as an average segment length
int nbSegments = 0;
for ( int iW = 0; iW < nbWires; ++iW )
{
edgeLength += wires[ iW ]->Length();
nbSegments += wires[ iW ]->NbSegments();
}
if ( nbSegments )
edgeLength /= nbSegments;
netgen::mparam.maxh = edgeLength;
}
else if ( isDefaultHyp )
{
// set edgeLength by a longest segment
double maxSeg2 = 0;
for ( int iW = 0; iW < nbWires; ++iW )
{
const UVPtStructVec& points = wires[ iW ]->GetUVPtStruct();
if ( points.empty() )
return error( COMPERR_BAD_INPUT_MESH );
gp_Pnt pPrev = SMESH_TNodeXYZ( points[0].node );
for ( size_t i = 1; i < points.size(); ++i )
{
gp_Pnt p = SMESH_TNodeXYZ( points[i].node );
maxSeg2 = Max( maxSeg2, p.SquareDistance( pPrev ));
pPrev = p;
}
}
edgeLength = sqrt( maxSeg2 ) * 1.05;
netgen::mparam.maxh = edgeLength;
}
if ( netgen::mparam.maxh < DBL_MIN )
netgen::mparam.maxh = occgeoComm.GetBoundingBox().Diam();
if ( !isCommonLocalSize )
{
netgen::mparam.minh = aMesher.GetDefaultMinSize( F, netgen::mparam.maxh );
}
}
// prepare occgeom
netgen::OCCGeometry occgeom;
occgeom.shape = F;
occgeom.fmap.Add( F );
occgeom.CalcBoundingBox();
occgeom.facemeshstatus.SetSize(1);
occgeom.facemeshstatus = 0;
occgeom.face_maxh_modified.SetSize(1);
occgeom.face_maxh_modified = 0;
occgeom.face_maxh.SetSize(1);
occgeom.face_maxh = netgen::mparam.maxh;
// -------------------------
// Fill netgen mesh
// -------------------------
// MESHCONST_ANALYSE step may lead to a failure, so we make an attempt
// w/o MESHCONST_ANALYSE at the second loop
int err = 0;
enum { LOC_SIZE, NO_LOC_SIZE };
int iLoop = isCommonLocalSize ? 0 : 1;
for ( ; iLoop < 2; iLoop++ )
{
//bool isMESHCONST_ANALYSE = false;
InitComputeError();
netgen::Mesh * ngMesh = ngMeshes[ iLoop ];
ngMesh->DeleteMesh();
if ( iLoop == NO_LOC_SIZE )
{
ngMesh->SetGlobalH ( mparam.maxh );
ngMesh->SetMinimalH( mparam.minh );
Box<3> bb = occgeom.GetBoundingBox();
bb.Increase (bb.Diam()/10);
ngMesh->SetLocalH (bb.PMin(), bb.PMax(), mparam.grading);
}
nodeVec.clear();
faceErr = aMesher.AddSegmentsToMesh( *ngMesh, occgeom, wires, helper, nodeVec,
/*overrideMinH=*/!_hypParameters);
if ( faceErr && !faceErr->IsOK() )
break;
//if ( !isCommonLocalSize )
//limitSize( ngMesh, mparam.maxh * 0.8);
// -------------------------
// Generate surface mesh
// -------------------------
const int startWith = MESHCONST_MESHSURFACE;
const int endWith = toOptimize ? MESHCONST_OPTSURFACE : MESHCONST_MESHSURFACE;
SMESH_Comment str;
try {
OCC_CATCH_SIGNALS;
#if NETGEN_VERSION >=6
std::shared_ptr<netgen::Mesh> mesh_ptr(ngMesh, [](netgen::Mesh*) {});
err = netgen::OCCGenerateMesh(occgeom, mesh_ptr, netgen::mparam, startWith, endWith);
#elif NETGEN_VERSION > 4
err = netgen::OCCGenerateMesh(occgeom, ngMesh, netgen::mparam, startWith, endWith);
#else
char *optstr = 0;
err = netgen::OCCGenerateMesh(occgeom, ngMesh, startWith, endWith, optstr);
#endif
if ( netgen::multithread.terminate )
return false;
if ( err )
str << "Error in netgen::OCCGenerateMesh() at " << netgen::multithread.task;
}
catch (Standard_Failure& ex)
{
err = 1;
str << "Exception in netgen::OCCGenerateMesh()"
<< " at " << netgen::multithread.task
<< ": " << ex.DynamicType()->Name();
if ( ex.GetMessageString() && strlen( ex.GetMessageString() ))
str << ": " << ex.GetMessageString();
}
catch (...) {
err = 1;
str << "Exception in netgen::OCCGenerateMesh()"
<< " at " << netgen::multithread.task;
}
if ( err )
{
if ( aMesher.FixFaceMesh( occgeom, *ngMesh, 1 ))
break;
if ( iLoop == LOC_SIZE )
{
netgen::mparam.minh = netgen::mparam.maxh;
netgen::mparam.maxh = 0;
for ( int iW = 0; iW < wires.size(); ++iW )
{
StdMeshers_FaceSidePtr wire = wires[ iW ];
const vector<UVPtStruct>& uvPtVec = wire->GetUVPtStruct();
for ( size_t iP = 1; iP < uvPtVec.size(); ++iP )
{
SMESH_TNodeXYZ p( uvPtVec[ iP ].node );
netgen::Point3d np( p.X(),p.Y(),p.Z());
double segLen = p.Distance( uvPtVec[ iP-1 ].node );
double size = ngMesh->GetH( np );
netgen::mparam.minh = Min( netgen::mparam.minh, size );
netgen::mparam.maxh = Max( netgen::mparam.maxh, segLen );
}
}
//cerr << "min " << netgen::mparam.minh << " max " << netgen::mparam.maxh << endl;
netgen::mparam.minh *= 0.9;
netgen::mparam.maxh *= 1.1;
continue;
}
else
{
faceErr.reset( new SMESH_ComputeError( COMPERR_ALGO_FAILED, 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
int i,j;
vector<const SMDS_MeshNode*> nodes;
for ( i = 1; i <= nbFaces ; ++i )
{
const Element2d& elem = ngMesh->SurfaceElement(i);
nodes.resize( elem.GetNP() );
for (j=1; j <= elem.GetNP(); ++j)
{
int pind = elem.PNum(j);
if ( pind < 1 )
break;
nodes[ j-1 ] = nodeVec[ pind ];
if ( nodes[ j-1 ]->GetPosition()->GetTypeOfPosition() == SMDS_TOP_3DSPACE )
{
const PointGeomInfo& pgi = elem.GeomInfoPi(j);
meshDS->SetNodeOnFace( nodes[ j-1 ], 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]);
}
}
break;
} // two attempts
} // loop on FACEs
return true;
}
bool StdMeshers_RadialPrism_3D::Compute(SMESH_Mesh& aMesh, const TopoDS_Shape& aShape)
{
TopExp_Explorer exp;
SMESHDS_Mesh * meshDS = aMesh.GetMeshDS();
myHelper = new SMESH_MesherHelper( aMesh );
myHelper->IsQuadraticSubMesh( aShape );
// to delete helper at exit from Compute()
std::auto_ptr<SMESH_MesherHelper> helperDeleter( myHelper );
// get 2 shells
TopoDS_Solid solid = TopoDS::Solid( aShape );
TopoDS_Shell outerShell = BRepClass3d::OuterShell( solid );
TopoDS_Shape innerShell;
int nbShells = 0;
for ( TopoDS_Iterator It (solid); It.More(); It.Next(), ++nbShells )
if ( !outerShell.IsSame( It.Value() ))
innerShell = It.Value();
if ( nbShells != 2 )
return error(COMPERR_BAD_SHAPE, SMESH_Comment("Must be 2 shells but not ")<<nbShells);
// ----------------------------------
// Associate sub-shapes of the shells
// ----------------------------------
ProjectionUtils::TShapeShapeMap shape2ShapeMaps[2];
bool mapOk1 = ProjectionUtils::FindSubShapeAssociation( innerShell, &aMesh,
outerShell, &aMesh,
shape2ShapeMaps[0]);
bool mapOk2 = ProjectionUtils::FindSubShapeAssociation( innerShell.Reversed(), &aMesh,
outerShell, &aMesh,
shape2ShapeMaps[1]);
if ( !mapOk1 && !mapOk2 )
return error(COMPERR_BAD_SHAPE,"Topology of inner and outer shells seems different" );
int iMap;
if ( shape2ShapeMaps[0].Extent() == shape2ShapeMaps[1].Extent() )
{
// choose an assiciation by shortest distance between VERTEXes
double dist1 = 0, dist2 = 0;
TopTools_DataMapIteratorOfDataMapOfShapeShape ssIt( shape2ShapeMaps[0]._map1to2 );
for (; ssIt.More(); ssIt.Next() )
{
if ( ssIt.Key().ShapeType() != TopAbs_VERTEX ) continue;
gp_Pnt pIn = BRep_Tool::Pnt( TopoDS::Vertex( ssIt.Key() ));
gp_Pnt pOut1 = BRep_Tool::Pnt( TopoDS::Vertex( ssIt.Value() ));
gp_Pnt pOut2 = BRep_Tool::Pnt( TopoDS::Vertex( shape2ShapeMaps[1]( ssIt.Key() )));
dist1 += pIn.SquareDistance( pOut1 );
dist2 += pIn.SquareDistance( pOut2 );
}
iMap = ( dist1 < dist2 ) ? 0 : 1;
}
else
{
iMap = ( shape2ShapeMaps[0].Extent() > shape2ShapeMaps[1].Extent() ) ? 0 : 1;
}
ProjectionUtils::TShapeShapeMap& shape2ShapeMap = shape2ShapeMaps[iMap];
// ------------------
// Make mesh
// ------------------
TNode2ColumnMap node2columnMap;
myLayerPositions.clear();
for ( exp.Init( outerShell, TopAbs_FACE ); exp.More(); exp.Next() )
{
// Corresponding sub-shapes
TopoDS_Face outFace = TopoDS::Face( exp.Current() );
TopoDS_Face inFace;
if ( !shape2ShapeMap.IsBound( outFace, /*isOut=*/true )) {
return error(SMESH_Comment("Corresponding inner face not found for face #" )
<< meshDS->ShapeToIndex( outFace ));
} else {
inFace = TopoDS::Face( shape2ShapeMap( outFace, /*isOut=*/true ));
}
// Find matching nodes of in and out faces
ProjectionUtils::TNodeNodeMap nodeIn2OutMap;
if ( ! ProjectionUtils::FindMatchingNodesOnFaces( inFace, &aMesh, outFace, &aMesh,
shape2ShapeMap, nodeIn2OutMap ))
return error(COMPERR_BAD_INPUT_MESH,SMESH_Comment("Mesh on faces #")
<< meshDS->ShapeToIndex( outFace ) << " and "
<< meshDS->ShapeToIndex( inFace ) << " seems different" );
// Create volumes
SMDS_ElemIteratorPtr faceIt = meshDS->MeshElements( inFace )->GetElements();
while ( faceIt->more() ) // loop on faces on inFace
{
const SMDS_MeshElement* face = faceIt->next();
if ( !face || face->GetType() != SMDSAbs_Face )
continue;
int nbNodes = face->NbNodes();
if ( face->IsQuadratic() )
nbNodes /= 2;
// find node columns for each node
vector< const TNodeColumn* > columns( nbNodes );
for ( int i = 0; i < nbNodes; ++i )
{
const SMDS_MeshNode* nIn = face->GetNode( i );
TNode2ColumnMap::iterator n_col = node2columnMap.find( nIn );
if ( n_col != node2columnMap.end() ) {
columns[ i ] = & n_col->second;
}
else {
TNodeNodeMap::iterator nInOut = nodeIn2OutMap.find( nIn );
if ( nInOut == nodeIn2OutMap.end() )
RETURN_BAD_RESULT("No matching node for "<< nIn->GetID() <<
" in face "<< face->GetID());
columns[ i ] = makeNodeColumn( node2columnMap, nIn, nInOut->second );
}
}
StdMeshers_Prism_3D::AddPrisms( columns, myHelper );
}
} // loop on faces of out shell
return true;
}
bool StdMeshers_RadialQuadrangle_1D2D::Compute(SMESH_Mesh& aMesh,
const TopoDS_Shape& aShape)
{
TopExp_Explorer exp;
SMESHDS_Mesh * meshDS = aMesh.GetMeshDS();
myHelper = new SMESH_MesherHelper( aMesh );
myHelper->IsQuadraticSubMesh( aShape );
// to delete helper at exit from Compute()
auto_ptr<SMESH_MesherHelper> helperDeleter( myHelper );
myLayerPositions.clear();
TopoDS_Edge CircEdge, LinEdge1, LinEdge2;
int nbe = analyseFace( aShape, CircEdge, LinEdge1, LinEdge2 );
if( nbe>3 || nbe < 1 || CircEdge.IsNull() )
return error(COMPERR_BAD_SHAPE);
gp_Pnt P0,P1;
// points for rotation
TColgp_SequenceOfPnt Points;
// angles for rotation
TColStd_SequenceOfReal Angles;
// Nodes1 and Nodes2 - nodes along radiuses
// CNodes - nodes on circle edge
vector< const SMDS_MeshNode* > Nodes1, Nodes2, CNodes;
SMDS_MeshNode * NC;
// parameters edge nodes on face
TColgp_SequenceOfPnt2d Pnts2d1;
gp_Pnt2d PC;
int faceID = meshDS->ShapeToIndex(aShape);
TopoDS_Face F = TopoDS::Face(aShape);
Handle(Geom_Surface) S = BRep_Tool::Surface(F);
if(nbe==1)
{
Handle(Geom_Circle) aCirc = Handle(Geom_Circle)::DownCast( getCurve( CircEdge ));
bool ok = _gen->Compute( aMesh, CircEdge );
if( !ok ) return false;
map< double, const SMDS_MeshNode* > theNodes;
ok = GetSortedNodesOnEdge(aMesh.GetMeshDS(),CircEdge,true,theNodes);
if( !ok ) return false;
CNodes.clear();
map< double, const SMDS_MeshNode* >::iterator itn = theNodes.begin();
const SMDS_MeshNode* NF = (*itn).second;
CNodes.push_back( (*itn).second );
double fang = (*itn).first;
if ( itn != theNodes.end() ) {
itn++;
for(; itn != theNodes.end(); itn++ ) {
CNodes.push_back( (*itn).second );
double ang = (*itn).first - fang;
if( ang>M_PI ) ang = ang - 2*M_PI;
if( ang<-M_PI ) ang = ang + 2*M_PI;
Angles.Append( ang );
}
}
P1 = gp_Pnt( NF->X(), NF->Y(), NF->Z() );
P0 = aCirc->Location();
myLayerPositions.clear();
computeLayerPositions(P0,P1);
exp.Init( CircEdge, TopAbs_VERTEX );
TopoDS_Vertex V1 = TopoDS::Vertex( exp.Current() );
gp_Pnt2d p2dV = BRep_Tool::Parameters( V1, TopoDS::Face(aShape) );
NC = meshDS->AddNode(P0.X(), P0.Y(), P0.Z());
GeomAPI_ProjectPointOnSurf PPS(P0,S);
double U0,V0;
PPS.Parameters(1,U0,V0);
meshDS->SetNodeOnFace(NC, faceID, U0, V0);
PC = gp_Pnt2d(U0,V0);
gp_Vec aVec(P0,P1);
gp_Vec2d aVec2d(PC,p2dV);
Nodes1.resize( myLayerPositions.size()+1 );
Nodes2.resize( myLayerPositions.size()+1 );
int i = 0;
for(; i<myLayerPositions.size(); i++) {
gp_Pnt P( P0.X() + aVec.X()*myLayerPositions[i],
P0.Y() + aVec.Y()*myLayerPositions[i],
P0.Z() + aVec.Z()*myLayerPositions[i] );
Points.Append(P);
SMDS_MeshNode * node = meshDS->AddNode(P.X(), P.Y(), P.Z());
Nodes1[i] = node;
Nodes2[i] = node;
double U = PC.X() + aVec2d.X()*myLayerPositions[i];
double V = PC.Y() + aVec2d.Y()*myLayerPositions[i];
meshDS->SetNodeOnFace( node, faceID, U, V );
Pnts2d1.Append(gp_Pnt2d(U,V));
}
Nodes1[Nodes1.size()-1] = NF;
Nodes2[Nodes1.size()-1] = NF;
}
else if(nbe==2 && LinEdge1.Orientation() != TopAbs_INTERNAL )
{
// one curve must be a half of circle and other curve must be
// a segment of line
double fp, lp;
Handle(Geom_Circle) aCirc = Handle(Geom_Circle)::DownCast( getCurve( CircEdge, &fp, &lp ));
if( fabs(fabs(lp-fp)-M_PI) > Precision::Confusion() ) {
// not half of circle
return error(COMPERR_BAD_SHAPE);
}
Handle(Geom_Line) aLine = Handle(Geom_Line)::DownCast( getCurve( LinEdge1 ));
if( aLine.IsNull() ) {
// other curve not line
return error(COMPERR_BAD_SHAPE);
}
bool linEdgeComputed = false;
if( SMESH_subMesh* sm1 = aMesh.GetSubMesh(LinEdge1) ) {
if( !sm1->IsEmpty() ) {
if( isEdgeCompitaballyMeshed( LinEdge1, aMesh.GetSubMesh(F) ))
linEdgeComputed = true;
else
return error("Invalid set of hypotheses");
}
}
bool ok = _gen->Compute( aMesh, CircEdge );
if( !ok ) return false;
map< double, const SMDS_MeshNode* > theNodes;
GetSortedNodesOnEdge(aMesh.GetMeshDS(),CircEdge,true,theNodes);
CNodes.clear();
map< double, const SMDS_MeshNode* >::iterator itn = theNodes.begin();
double fang = (*itn).first;
itn++;
for(; itn != theNodes.end(); itn++ ) {
CNodes.push_back( (*itn).second );
double ang = (*itn).first - fang;
if( ang>M_PI ) ang = ang - 2*M_PI;
if( ang<-M_PI ) ang = ang + 2*M_PI;
Angles.Append( ang );
}
const SMDS_MeshNode* NF = theNodes.begin()->second;
const SMDS_MeshNode* NL = theNodes.rbegin()->second;
CNodes.push_back( NF );
P1 = gp_Pnt( NF->X(), NF->Y(), NF->Z() );
gp_Pnt P2( NL->X(), NL->Y(), NL->Z() );
P0 = aCirc->Location();
myLayerPositions.clear();
computeLayerPositions(P0,P1);
if ( linEdgeComputed )
{
if (!GetSortedNodesOnEdge(aMesh.GetMeshDS(),LinEdge1,true,theNodes))
return error("Invalid mesh on a straight edge");
vector< const SMDS_MeshNode* > *pNodes1 = &Nodes1, *pNodes2 = &Nodes2;
bool nodesFromP0ToP1 = ( theNodes.rbegin()->second == NF );
if ( !nodesFromP0ToP1 ) std::swap( pNodes1, pNodes2 );
map< double, const SMDS_MeshNode* >::reverse_iterator ritn = theNodes.rbegin();
itn = theNodes.begin();
for ( int i = Nodes1.size()-1; i > -1; ++itn, ++ritn, --i )
{
(*pNodes1)[i] = ritn->second;
(*pNodes2)[i] = itn->second;
Points.Append( gpXYZ( Nodes1[i]));
Pnts2d1.Append( myHelper->GetNodeUV( F, Nodes1[i]));
}
NC = const_cast<SMDS_MeshNode*>( itn->second );
Points.Remove( Nodes1.size() );
}
else
{
gp_Vec aVec(P0,P1);
int edgeID = meshDS->ShapeToIndex(LinEdge1);
// check orientation
Handle(Geom_Curve) Crv = BRep_Tool::Curve(LinEdge1,fp,lp);
gp_Pnt Ptmp;
Crv->D0(fp,Ptmp);
bool ori = true;
if( P1.Distance(Ptmp) > Precision::Confusion() )
ori = false;
// get UV points for edge
gp_Pnt2d PF,PL;
BRep_Tool::UVPoints( LinEdge1, TopoDS::Face(aShape), PF, PL );
PC = gp_Pnt2d( (PF.X()+PL.X())/2, (PF.Y()+PL.Y())/2 );
gp_Vec2d V2d;
if(ori) V2d = gp_Vec2d(PC,PF);
else V2d = gp_Vec2d(PC,PL);
// add nodes on edge
double cp = (fp+lp)/2;
double dp2 = (lp-fp)/2;
NC = meshDS->AddNode(P0.X(), P0.Y(), P0.Z());
meshDS->SetNodeOnEdge(NC, edgeID, cp);
Nodes1.resize( myLayerPositions.size()+1 );
Nodes2.resize( myLayerPositions.size()+1 );
int i = 0;
for(; i<myLayerPositions.size(); i++) {
gp_Pnt P( P0.X() + aVec.X()*myLayerPositions[i],
P0.Y() + aVec.Y()*myLayerPositions[i],
P0.Z() + aVec.Z()*myLayerPositions[i] );
Points.Append(P);
SMDS_MeshNode * node = meshDS->AddNode(P.X(), P.Y(), P.Z());
Nodes1[i] = node;
double param;
if(ori)
param = fp + dp2*(1-myLayerPositions[i]);
else
param = cp + dp2*myLayerPositions[i];
meshDS->SetNodeOnEdge(node, edgeID, param);
P = gp_Pnt( P0.X() - aVec.X()*myLayerPositions[i],
P0.Y() - aVec.Y()*myLayerPositions[i],
P0.Z() - aVec.Z()*myLayerPositions[i] );
node = meshDS->AddNode(P.X(), P.Y(), P.Z());
Nodes2[i] = node;
if(!ori)
param = fp + dp2*(1-myLayerPositions[i]);
else
param = cp + dp2*myLayerPositions[i];
meshDS->SetNodeOnEdge(node, edgeID, param);
// parameters on face
gp_Pnt2d P2d( PC.X() + V2d.X()*myLayerPositions[i],
PC.Y() + V2d.Y()*myLayerPositions[i] );
Pnts2d1.Append(P2d);
}
Nodes1[ myLayerPositions.size() ] = NF;
Nodes2[ myLayerPositions.size() ] = NL;
// create 1D elements on edge
vector< const SMDS_MeshNode* > tmpNodes;
tmpNodes.resize(2*Nodes1.size()+1);
for(i=0; i<Nodes2.size(); i++)
tmpNodes[Nodes2.size()-i-1] = Nodes2[i];
tmpNodes[Nodes2.size()] = NC;
for(i=0; i<Nodes1.size(); i++)
tmpNodes[Nodes2.size()+1+i] = Nodes1[i];
for(i=1; i<tmpNodes.size(); i++) {
SMDS_MeshEdge* ME = myHelper->AddEdge( tmpNodes[i-1], tmpNodes[i] );
if(ME) meshDS->SetMeshElementOnShape(ME, edgeID);
}
markLinEdgeAsComputedByMe( LinEdge1, aMesh.GetSubMesh( F ));
}
}
else // nbe==3 or ( nbe==2 && linEdge is INTERNAL )
{
if (nbe==2 && LinEdge1.Orientation() == TopAbs_INTERNAL )
LinEdge2 = LinEdge1;
// one curve must be a part of circle and other curves must be
// segments of line
double fp, lp;
Handle(Geom_Circle) aCirc = Handle(Geom_Circle)::DownCast( getCurve( CircEdge ));
Handle(Geom_Line) aLine1 = Handle(Geom_Line)::DownCast( getCurve( LinEdge1 ));
Handle(Geom_Line) aLine2 = Handle(Geom_Line)::DownCast( getCurve( LinEdge2 ));
if( aLine1.IsNull() || aLine2.IsNull() ) {
// other curve not line
return error(COMPERR_BAD_SHAPE);
}
bool linEdge1Computed = false;
if ( SMESH_subMesh* sm1 = aMesh.GetSubMesh(LinEdge1))
if( !sm1->IsEmpty() ) {
if( isEdgeCompitaballyMeshed( LinEdge1, aMesh.GetSubMesh(F) ))
linEdge1Computed = true;
else
return error("Invalid set of hypotheses");
}
bool linEdge2Computed = false;
if ( SMESH_subMesh* sm2 = aMesh.GetSubMesh(LinEdge2))
if( !sm2->IsEmpty() ) {
if( isEdgeCompitaballyMeshed( LinEdge2, aMesh.GetSubMesh(F) ))
linEdge2Computed = true;
else
return error("Invalid set of hypotheses");
}
bool ok = _gen->Compute( aMesh, CircEdge );
if( !ok ) return false;
map< double, const SMDS_MeshNode* > theNodes;
GetSortedNodesOnEdge(aMesh.GetMeshDS(),CircEdge,true,theNodes);
const SMDS_MeshNode* NF = theNodes.begin()->second;
const SMDS_MeshNode* NL = theNodes.rbegin()->second;
CNodes.clear();
CNodes.push_back( NF );
map< double, const SMDS_MeshNode* >::iterator itn = theNodes.begin();
double fang = (*itn).first;
itn++;
for(; itn != theNodes.end(); itn++ ) {
CNodes.push_back( (*itn).second );
double ang = (*itn).first - fang;
if( ang>M_PI ) ang = ang - 2*M_PI;
if( ang<-M_PI ) ang = ang + 2*M_PI;
Angles.Append( ang );
}
P1 = gp_Pnt( NF->X(), NF->Y(), NF->Z() );
gp_Pnt P2( NL->X(), NL->Y(), NL->Z() );
P0 = aCirc->Location();
myLayerPositions.clear();
computeLayerPositions(P0,P1);
Nodes1.resize( myLayerPositions.size()+1 );
Nodes2.resize( myLayerPositions.size()+1 );
exp.Init( LinEdge1, TopAbs_VERTEX );
TopoDS_Vertex V1 = TopoDS::Vertex( exp.Current() );
exp.Next();
TopoDS_Vertex V2 = TopoDS::Vertex( exp.Current() );
gp_Pnt PE1 = BRep_Tool::Pnt(V1);
gp_Pnt PE2 = BRep_Tool::Pnt(V2);
if( ( P1.Distance(PE1) > Precision::Confusion() ) &&
( P1.Distance(PE2) > Precision::Confusion() ) )
{
std::swap( LinEdge1, LinEdge2 );
std::swap( linEdge1Computed, linEdge2Computed );
}
TopoDS_Vertex VC = V2;
if( ( P1.Distance(PE1) > Precision::Confusion() ) &&
( P2.Distance(PE1) > Precision::Confusion() ) )
VC = V1;
int vertID = meshDS->ShapeToIndex(VC);
// LinEdge1
if ( linEdge1Computed )
{
if (!GetSortedNodesOnEdge(aMesh.GetMeshDS(),LinEdge1,true,theNodes))
return error("Invalid mesh on a straight edge");
bool nodesFromP0ToP1 = ( theNodes.rbegin()->second == NF );
NC = const_cast<SMDS_MeshNode*>
( nodesFromP0ToP1 ? theNodes.begin()->second : theNodes.rbegin()->second );
int i = 0, ir = Nodes1.size()-1;
int * pi = nodesFromP0ToP1 ? &i : &ir;
itn = theNodes.begin();
if ( nodesFromP0ToP1 ) ++itn;
for ( ; i < Nodes1.size(); ++i, --ir, ++itn )
{
Nodes1[*pi] = itn->second;
}
for ( i = 0; i < Nodes1.size()-1; ++i )
{
Points.Append( gpXYZ( Nodes1[i]));
Pnts2d1.Append( myHelper->GetNodeUV( F, Nodes1[i]));
}
}
else
{
int edgeID = meshDS->ShapeToIndex(LinEdge1);
gp_Vec aVec(P0,P1);
// check orientation
Handle(Geom_Curve) Crv = BRep_Tool::Curve(LinEdge1,fp,lp);
gp_Pnt Ptmp = Crv->Value(fp);
bool ori = false;
if( P1.Distance(Ptmp) > Precision::Confusion() )
ori = true;
// get UV points for edge
gp_Pnt2d PF,PL;
BRep_Tool::UVPoints( LinEdge1, TopoDS::Face(aShape), PF, PL );
gp_Vec2d V2d;
if(ori) {
V2d = gp_Vec2d(PF,PL);
PC = PF;
}
else {
V2d = gp_Vec2d(PL,PF);
PC = PL;
}
NC = const_cast<SMDS_MeshNode*>( VertexNode( VC, meshDS ));
if ( !NC )
{
NC = meshDS->AddNode(P0.X(), P0.Y(), P0.Z());
meshDS->SetNodeOnVertex(NC, vertID);
}
double dp = lp-fp;
int i = 0;
for(; i<myLayerPositions.size(); i++) {
gp_Pnt P( P0.X() + aVec.X()*myLayerPositions[i],
P0.Y() + aVec.Y()*myLayerPositions[i],
P0.Z() + aVec.Z()*myLayerPositions[i] );
Points.Append(P);
SMDS_MeshNode * node = meshDS->AddNode(P.X(), P.Y(), P.Z());
Nodes1[i] = node;
double param;
if(!ori)
param = fp + dp*(1-myLayerPositions[i]);
else
param = fp + dp*myLayerPositions[i];
meshDS->SetNodeOnEdge(node, edgeID, param);
// parameters on face
gp_Pnt2d P2d( PC.X() + V2d.X()*myLayerPositions[i],
PC.Y() + V2d.Y()*myLayerPositions[i] );
Pnts2d1.Append(P2d);
}
Nodes1[ myLayerPositions.size() ] = NF;
// create 1D elements on edge
SMDS_MeshEdge* ME = myHelper->AddEdge( NC, Nodes1[0] );
if(ME) meshDS->SetMeshElementOnShape(ME, edgeID);
for(i=1; i<Nodes1.size(); i++) {
ME = myHelper->AddEdge( Nodes1[i-1], Nodes1[i] );
if(ME) meshDS->SetMeshElementOnShape(ME, edgeID);
}
if (nbe==2 && LinEdge1.Orientation() == TopAbs_INTERNAL )
Nodes2 = Nodes1;
}
markLinEdgeAsComputedByMe( LinEdge1, aMesh.GetSubMesh( F ));
// LinEdge2
if ( linEdge2Computed )
{
if (!GetSortedNodesOnEdge(aMesh.GetMeshDS(),LinEdge2,true,theNodes))
return error("Invalid mesh on a straight edge");
bool nodesFromP0ToP2 = ( theNodes.rbegin()->second == NL );
int i = 0, ir = Nodes1.size()-1;
int * pi = nodesFromP0ToP2 ? &i : &ir;
itn = theNodes.begin();
if ( nodesFromP0ToP2 ) ++itn;
for ( ; i < Nodes2.size(); ++i, --ir, ++itn )
Nodes2[*pi] = itn->second;
}
else
{
int edgeID = meshDS->ShapeToIndex(LinEdge2);
gp_Vec aVec = gp_Vec(P0,P2);
// check orientation
Handle(Geom_Curve) Crv = BRep_Tool::Curve(LinEdge2,fp,lp);
gp_Pnt Ptmp = Crv->Value(fp);
bool ori = false;
if( P2.Distance(Ptmp) > Precision::Confusion() )
ori = true;
// get UV points for edge
gp_Pnt2d PF,PL;
BRep_Tool::UVPoints( LinEdge2, TopoDS::Face(aShape), PF, PL );
gp_Vec2d V2d;
if(ori) {
V2d = gp_Vec2d(PF,PL);
PC = PF;
}
else {
V2d = gp_Vec2d(PL,PF);
PC = PL;
}
double dp = lp-fp;
for(int i=0; i<myLayerPositions.size(); i++) {
gp_Pnt P( P0.X() + aVec.X()*myLayerPositions[i],
P0.Y() + aVec.Y()*myLayerPositions[i],
P0.Z() + aVec.Z()*myLayerPositions[i] );
SMDS_MeshNode * node = meshDS->AddNode(P.X(), P.Y(), P.Z());
Nodes2[i] = node;
double param;
if(!ori)
param = fp + dp*(1-myLayerPositions[i]);
else
param = fp + dp*myLayerPositions[i];
meshDS->SetNodeOnEdge(node, edgeID, param);
// parameters on face
gp_Pnt2d P2d( PC.X() + V2d.X()*myLayerPositions[i],
PC.Y() + V2d.Y()*myLayerPositions[i] );
}
Nodes2[ myLayerPositions.size() ] = NL;
// create 1D elements on edge
SMDS_MeshEdge* ME = myHelper->AddEdge( NC, Nodes2[0] );
if(ME) meshDS->SetMeshElementOnShape(ME, edgeID);
for(int i=1; i<Nodes2.size(); i++) {
ME = myHelper->AddEdge( Nodes2[i-1], Nodes2[i] );
if(ME) meshDS->SetMeshElementOnShape(ME, edgeID);
}
}
markLinEdgeAsComputedByMe( LinEdge2, aMesh.GetSubMesh( F ));
}
// orientation
bool IsForward = ( CircEdge.Orientation()==TopAbs_FORWARD );
// create nodes and mesh elements on face
// find axis of rotation
gp_Pnt P2 = gp_Pnt( CNodes[1]->X(), CNodes[1]->Y(), CNodes[1]->Z() );
gp_Vec Vec1(P0,P1);
gp_Vec Vec2(P0,P2);
gp_Vec Axis = Vec1.Crossed(Vec2);
// create elements
int i = 1;
//cout<<"Angles.Length() = "<<Angles.Length()<<" Points.Length() = "<<Points.Length()<<endl;
//cout<<"Nodes1.size() = "<<Nodes1.size()<<" Pnts2d1.Length() = "<<Pnts2d1.Length()<<endl;
for(; i<Angles.Length(); i++) {
vector< const SMDS_MeshNode* > tmpNodes;
tmpNodes.reserve(Nodes1.size());
gp_Trsf aTrsf;
gp_Ax1 theAxis(P0,gp_Dir(Axis));
aTrsf.SetRotation( theAxis, Angles.Value(i) );
gp_Trsf2d aTrsf2d;
aTrsf2d.SetRotation( PC, Angles.Value(i) );
// create nodes
int j = 1;
for(; j<=Points.Length(); j++) {
double cx,cy,cz;
Points.Value(j).Coord( cx, cy, cz );
aTrsf.Transforms( cx, cy, cz );
SMDS_MeshNode* node = myHelper->AddNode( cx, cy, cz );
// find parameters on face
Pnts2d1.Value(j).Coord( cx, cy );
aTrsf2d.Transforms( cx, cy );
// set node on face
meshDS->SetNodeOnFace( node, faceID, cx, cy );
tmpNodes[j-1] = node;
}
// create faces
tmpNodes[Points.Length()] = CNodes[i];
// quad
for(j=0; j<Nodes1.size()-1; j++) {
SMDS_MeshFace* MF;
if(IsForward)
MF = myHelper->AddFace( tmpNodes[j], Nodes1[j],
Nodes1[j+1], tmpNodes[j+1] );
else
MF = myHelper->AddFace( tmpNodes[j], tmpNodes[j+1],
Nodes1[j+1], Nodes1[j] );
if(MF) meshDS->SetMeshElementOnShape(MF, faceID);
}
// tria
SMDS_MeshFace* MF;
if(IsForward)
MF = myHelper->AddFace( NC, Nodes1[0], tmpNodes[0] );
else
MF = myHelper->AddFace( NC, tmpNodes[0], Nodes1[0] );
if(MF) meshDS->SetMeshElementOnShape(MF, faceID);
for(j=0; j<Nodes1.size(); j++) {
Nodes1[j] = tmpNodes[j];
}
}
// create last faces
// quad
for(i=0; i<Nodes1.size()-1; i++) {
SMDS_MeshFace* MF;
if(IsForward)
MF = myHelper->AddFace( Nodes2[i], Nodes1[i],
Nodes1[i+1], Nodes2[i+1] );
else
MF = myHelper->AddFace( Nodes2[i], Nodes2[i+1],
Nodes1[i+1], Nodes1[i] );
if(MF) meshDS->SetMeshElementOnShape(MF, faceID);
}
// tria
SMDS_MeshFace* MF;
if(IsForward)
MF = myHelper->AddFace( NC, Nodes1[0], Nodes2[0] );
else
MF = myHelper->AddFace( NC, Nodes2[0], Nodes1[0] );
if(MF) meshDS->SetMeshElementOnShape(MF, faceID);
return true;
}
PyObject* FemMeshPy::addVolume(PyObject *args)
{
SMESH_Mesh* mesh = getFemMeshPtr()->getSMesh();
SMESHDS_Mesh* meshDS = mesh->GetMeshDS();
int n1,n2,n3,n4;
if (PyArg_ParseTuple(args, "iiii",&n1,&n2,&n3,&n4))
{
try {
const SMDS_MeshNode* node1 = meshDS->FindNode(n1);
const SMDS_MeshNode* node2 = meshDS->FindNode(n2);
const SMDS_MeshNode* node3 = meshDS->FindNode(n3);
const SMDS_MeshNode* node4 = meshDS->FindNode(n4);
if (!node1 || !node2 || !node3 || !node4)
throw std::runtime_error("Failed to get node of the given indices");
SMDS_MeshVolume* vol = meshDS->AddVolume(node1, node2, node3, node4);
if (!vol)
throw std::runtime_error("Failed to add volume");
return Py::new_reference_to(Py::Int(vol->GetID()));
}
catch (const std::exception& e) {
PyErr_SetString(Base::BaseExceptionFreeCADError, e.what());
return 0;
}
}
PyErr_Clear();
PyObject *obj;
int ElementId=-1;
if (PyArg_ParseTuple(args, "O!|i", &PyList_Type, &obj, &ElementId))
{
Py::List list(obj);
std::vector<const SMDS_MeshNode*> Nodes;
for (Py::List::iterator it = list.begin(); it != list.end(); ++it) {
Py::Int NoNr(*it);
const SMDS_MeshNode* node = meshDS->FindNode(NoNr);
if (!node)
throw std::runtime_error("Failed to get node of the given indices");
Nodes.push_back(node);
}
SMDS_MeshVolume* vol=0;
if(ElementId != -1) {
switch(Nodes.size()){
case 4:
vol = meshDS->AddVolumeWithID(Nodes[0],Nodes[1],Nodes[2],Nodes[3],ElementId);
if (!vol)
throw std::runtime_error("Failed to add Tet4 volume");
break;
case 8:
vol = meshDS->AddVolumeWithID(Nodes[0],Nodes[1],Nodes[2],Nodes[3],Nodes[4],Nodes[5],Nodes[6],Nodes[7],ElementId);
if (!vol)
throw std::runtime_error("Failed to add Tet10 volume");
break;
case 10:
vol = meshDS->AddVolumeWithID(Nodes[0],Nodes[1],Nodes[2],Nodes[3],Nodes[4],Nodes[5],Nodes[6],Nodes[7],Nodes[8],Nodes[9],ElementId);
if (!vol)
throw std::runtime_error("Failed to add Tet10 volume");
break;
default: throw std::runtime_error("Unknown node count, [4|5|6|8|10|13|18] are allowed"); //unknown face type
}
}else{
switch(Nodes.size()){
case 4:
vol = meshDS->AddVolume(Nodes[0],Nodes[1],Nodes[2],Nodes[3]);
if (!vol)
throw std::runtime_error("Failed to add Tet4 volume");
break;
case 8:
vol = meshDS->AddVolume(Nodes[0],Nodes[1],Nodes[2],Nodes[3],Nodes[4],Nodes[5],Nodes[6],Nodes[7]);
if (!vol)
throw std::runtime_error("Failed to add Tet10 volume");
break;
case 10:
vol = meshDS->AddVolume(Nodes[0],Nodes[1],Nodes[2],Nodes[3],Nodes[4],Nodes[5],Nodes[6],Nodes[7],Nodes[8],Nodes[9]);
if (!vol)
throw std::runtime_error("Failed to add Tet10 volume");
break;
default: throw std::runtime_error("Unknown node count, [4|5|6|8|10|13|18] are allowed"); //unknown face type
}
}
return Py::new_reference_to(Py::Int(vol->GetID()));
}
PyErr_SetString(PyExc_TypeError, "Line constructor accepts:\n"
"-- empty parameter list\n"
"-- Line\n"
"-- Point, Point");
return 0;
}
PyObject* FemMeshPy::addFace(PyObject *args)
{
SMESH_Mesh* mesh = getFemMeshPtr()->getSMesh();
SMESHDS_Mesh* meshDS = mesh->GetMeshDS();
int n1,n2,n3;
if (PyArg_ParseTuple(args, "iii",&n1,&n2,&n3))
{
// old form, debrekadet
try {
const SMDS_MeshNode* node1 = meshDS->FindNode(n1);
const SMDS_MeshNode* node2 = meshDS->FindNode(n2);
const SMDS_MeshNode* node3 = meshDS->FindNode(n3);
if (!node1 || !node2 || !node3)
throw std::runtime_error("Failed to get node of the given indices");
SMDS_MeshFace* face = meshDS->AddFace(node1, node2, node3);
if (!face)
throw std::runtime_error("Failed to add face");
return Py::new_reference_to(Py::Int(face->GetID()));
}
catch (const std::exception& e) {
PyErr_SetString(Base::BaseExceptionFreeCADError, e.what());
return 0;
}
}
PyErr_Clear();
PyObject *obj;
int ElementId=-1;
if (PyArg_ParseTuple(args, "O!|i", &PyList_Type, &obj, &ElementId))
{
Py::List list(obj);
std::vector<const SMDS_MeshNode*> Nodes;
for (Py::List::iterator it = list.begin(); it != list.end(); ++it) {
Py::Int NoNr(*it);
const SMDS_MeshNode* node = meshDS->FindNode(NoNr);
if (!node)
throw std::runtime_error("Failed to get node of the given indices");
Nodes.push_back(node);
}
SMDS_MeshFace* face=0;
switch(Nodes.size()){
case 3:
face = meshDS->AddFace(Nodes[0],Nodes[1],Nodes[2]);
if (!face)
throw std::runtime_error("Failed to add triangular face");
break;
default: throw std::runtime_error("Unknown node count, [3|4|6|8] are allowed"); //unknown face type
}
return Py::new_reference_to(Py::Int(face->GetID()));
}
PyErr_SetString(PyExc_TypeError, "Line constructor accepts:\n"
"-- empty parameter list\n"
"-- Line\n"
"-- Point, Point");
return 0;
}
bool StdMeshers_Projection_3D::Compute(SMESH_Mesh& aMesh, const TopoDS_Shape& aShape)
{
if ( !_sourceHypo )
return false;
SMESH_Mesh * srcMesh = _sourceHypo->GetSourceMesh();
SMESH_Mesh * tgtMesh = & aMesh;
if ( !srcMesh )
srcMesh = tgtMesh;
SMESHDS_Mesh * srcMeshDS = srcMesh->GetMeshDS();
SMESHDS_Mesh * tgtMeshDS = tgtMesh->GetMeshDS();
// get shell from shape3D
TopoDS_Shell srcShell, tgtShell;
TopExp_Explorer exp( _sourceHypo->GetSource3DShape(), TopAbs_SHELL );
int nbShell;
for ( nbShell = 0; exp.More(); exp.Next(), ++nbShell )
srcShell = TopoDS::Shell( exp.Current() );
if ( nbShell != 1 )
return error(COMPERR_BAD_SHAPE,
SMESH_Comment("Source shape must have 1 shell but not ") << nbShell);
exp.Init( aShape, TopAbs_SHELL );
for ( nbShell = 0; exp.More(); exp.Next(), ++nbShell )
tgtShell = TopoDS::Shell( exp.Current() );
if ( nbShell != 1 )
return error(COMPERR_BAD_SHAPE,
SMESH_Comment("Target shape must have 1 shell but not ") << nbShell);
// Check that shapes are blocks
if ( TAssocTool::Count( tgtShell, TopAbs_FACE , 1 ) != 6 ||
TAssocTool::Count( tgtShell, TopAbs_EDGE , 1 ) != 12 ||
TAssocTool::Count( tgtShell, TopAbs_WIRE , 1 ) != 6 )
return error(COMPERR_BAD_SHAPE, "Target shape is not a block");
if ( TAssocTool::Count( srcShell, TopAbs_FACE , 1 ) != 6 ||
TAssocTool::Count( srcShell, TopAbs_EDGE , 1 ) != 12 ||
TAssocTool::Count( srcShell, TopAbs_WIRE , 1 ) != 6 )
return error(COMPERR_BAD_SHAPE, "Source shape is not a block");
// Assure that mesh on a source shape is computed
SMESH_subMesh* srcSubMesh = srcMesh->GetSubMesh( _sourceHypo->GetSource3DShape() );
//SMESH_subMesh* tgtSubMesh = tgtMesh->GetSubMesh( aShape );
if ( tgtMesh == srcMesh && !aShape.IsSame( _sourceHypo->GetSource3DShape() )) {
if ( !TAssocTool::MakeComputed( srcSubMesh ))
return error(COMPERR_BAD_INPUT_MESH,"Source mesh not computed");
}
else {
if ( !srcSubMesh->IsMeshComputed() )
return error(COMPERR_BAD_INPUT_MESH,"Source mesh not computed");
}
// Find 2 pairs of corresponding vertices
TopoDS_Vertex tgtV000, tgtV100, srcV000, srcV100;
TAssocTool::TShapeShapeMap shape2ShapeMap;
if ( _sourceHypo->HasVertexAssociation() )
{
tgtV000 = _sourceHypo->GetTargetVertex(1);
tgtV100 = _sourceHypo->GetTargetVertex(2);
srcV000 = _sourceHypo->GetSourceVertex(1);
srcV100 = _sourceHypo->GetSourceVertex(2);
}
else
{
if ( !TAssocTool::FindSubShapeAssociation( tgtShell, tgtMesh, srcShell, srcMesh,
shape2ShapeMap) )
return error(COMPERR_BAD_SHAPE,"Topology of source and target shapes seems different" );
exp.Init( tgtShell, TopAbs_EDGE );
TopExp::Vertices( TopoDS::Edge( exp.Current() ), tgtV000, tgtV100 );
if ( !shape2ShapeMap.IsBound( tgtV000 ) || !shape2ShapeMap.IsBound( tgtV100 ))
return error("Association of subshapes failed" );
srcV000 = TopoDS::Vertex( shape2ShapeMap( tgtV000 ));
srcV100 = TopoDS::Vertex( shape2ShapeMap( tgtV100 ));
if ( !TAssocTool::IsSubShape( srcV000, srcShell ) ||
!TAssocTool::IsSubShape( srcV100, srcShell ))
return error("Incorrect association of subshapes" );
}
// Load 2 SMESH_Block's with src and tgt shells
SMESH_Block srcBlock, tgtBlock;
TopTools_IndexedMapOfOrientedShape scrShapes, tgtShapes;
if ( !tgtBlock.LoadBlockShapes( tgtShell, tgtV000, tgtV100, tgtShapes ))
return error(COMPERR_BAD_SHAPE, "Can't detect block subshapes. Not a block?");
if ( !srcBlock.LoadBlockShapes( srcShell, srcV000, srcV100, scrShapes ))
return error(COMPERR_BAD_SHAPE, "Can't detect block subshapes. Not a block?");
// Find matching nodes of src and tgt shells
TNodeNodeMap src2tgtNodeMap;
for ( int fId = SMESH_Block::ID_FirstF; fId < SMESH_Block::ID_Shell; ++fId )
{
// Corresponding subshapes
TopoDS_Face srcFace = TopoDS::Face( scrShapes( fId ));
TopoDS_Face tgtFace = TopoDS::Face( tgtShapes( fId ));
if ( _sourceHypo->HasVertexAssociation() ) { // associate face subshapes
shape2ShapeMap.Clear();
vector< int > edgeIdVec;
SMESH_Block::GetFaceEdgesIDs( fId, edgeIdVec );
for ( int i = 0; i < edgeIdVec.size(); ++i ) {
int eID = edgeIdVec[ i ];
shape2ShapeMap.Bind( tgtShapes( eID ), scrShapes( eID ));
if ( i < 2 ) {
vector< int > vertexIdVec;
SMESH_Block::GetEdgeVertexIDs( eID, vertexIdVec );
shape2ShapeMap.Bind( tgtShapes( vertexIdVec[0] ), scrShapes( vertexIdVec[0] ));
shape2ShapeMap.Bind( tgtShapes( vertexIdVec[1] ), scrShapes( vertexIdVec[1] ));
}
}
}
// Find matching nodes of tgt and src faces
TNodeNodeMap faceMatchingNodes;
if ( ! TAssocTool::FindMatchingNodesOnFaces( srcFace, srcMesh, tgtFace, tgtMesh,
shape2ShapeMap, faceMatchingNodes ))
return error(COMPERR_BAD_INPUT_MESH,SMESH_Comment("Mesh on faces #")
<< srcMeshDS->ShapeToIndex( srcFace ) << " and "
<< tgtMeshDS->ShapeToIndex( tgtFace ) << " seems different" );
// put found matching nodes of 2 faces to the global map
src2tgtNodeMap.insert( faceMatchingNodes.begin(), faceMatchingNodes.end() );
}
// ------------------
// Make mesh
// ------------------
SMDS_VolumeTool volTool;
SMESH_MesherHelper helper( *tgtMesh );
helper.IsQuadraticSubMesh( aShape );
SMESHDS_SubMesh* srcSMDS = srcSubMesh->GetSubMeshDS();
SMDS_ElemIteratorPtr volIt = srcSMDS->GetElements();
while ( volIt->more() ) // loop on source volumes
{
const SMDS_MeshElement* srcVol = volIt->next();
if ( !srcVol || srcVol->GetType() != SMDSAbs_Volume )
continue;
int nbNodes = srcVol->NbNodes();
SMDS_VolumeTool::VolumeType volType = volTool.GetType( nbNodes );
if ( srcVol->IsQuadratic() )
nbNodes = volTool.NbCornerNodes( volType );
// Find or create a new tgt node for each node of a src volume
vector< const SMDS_MeshNode* > nodes( nbNodes );
for ( int i = 0; i < nbNodes; ++i )
{
const SMDS_MeshNode* srcNode = srcVol->GetNode( i );
const SMDS_MeshNode* tgtNode = 0;
TNodeNodeMap::iterator sN_tN = src2tgtNodeMap.find( srcNode );
if ( sN_tN != src2tgtNodeMap.end() ) // found
{
tgtNode = sN_tN->second;
}
else // Create a new tgt node
{
// compute normalized parameters of source node in srcBlock
gp_Pnt srcCoord = gpXYZ( srcNode );
gp_XYZ srcParam;
if ( !srcBlock.ComputeParameters( srcCoord, srcParam ))
return error(SMESH_Comment("Can't compute normalized parameters ")
<< "for source node " << srcNode->GetID());
// compute coordinates of target node by srcParam
gp_XYZ tgtXYZ;
if ( !tgtBlock.ShellPoint( srcParam, tgtXYZ ))
return error("Can't compute coordinates by normalized parameters");
// add node
SMDS_MeshNode* newNode = tgtMeshDS->AddNode( tgtXYZ.X(), tgtXYZ.Y(), tgtXYZ.Z() );
tgtMeshDS->SetNodeInVolume( newNode, helper.GetSubShapeID() );
tgtNode = newNode;
src2tgtNodeMap.insert( make_pair( srcNode, tgtNode ));
}
nodes[ i ] = tgtNode;
}
// Create a new volume
SMDS_MeshVolume * tgtVol = 0;
int id = 0, force3d = false;
switch ( volType ) {
case SMDS_VolumeTool::TETRA :
case SMDS_VolumeTool::QUAD_TETRA:
tgtVol = helper.AddVolume( nodes[0],
nodes[1],
nodes[2],
nodes[3], id, force3d); break;
case SMDS_VolumeTool::PYRAM :
case SMDS_VolumeTool::QUAD_PYRAM:
tgtVol = helper.AddVolume( nodes[0],
nodes[1],
nodes[2],
nodes[3],
nodes[4], id, force3d); break;
case SMDS_VolumeTool::PENTA :
case SMDS_VolumeTool::QUAD_PENTA:
tgtVol = helper.AddVolume( nodes[0],
nodes[1],
nodes[2],
nodes[3],
nodes[4],
nodes[5], id, force3d); break;
case SMDS_VolumeTool::HEXA :
case SMDS_VolumeTool::QUAD_HEXA :
tgtVol = helper.AddVolume( nodes[0],
nodes[1],
nodes[2],
nodes[3],
nodes[4],
nodes[5],
nodes[6],
nodes[7], id, force3d); break;
default: // polyhedron
const SMDS_PolyhedralVolumeOfNodes * poly =
dynamic_cast<const SMDS_PolyhedralVolumeOfNodes*>( srcVol );
if ( !poly )
RETURN_BAD_RESULT("Unexpected volume type");
tgtVol = tgtMeshDS->AddPolyhedralVolume( nodes, poly->GetQuanities() );
}
if ( tgtVol ) {
tgtMeshDS->SetMeshElementOnShape( tgtVol, helper.GetSubShapeID() );
}
} // loop on volumes of src shell
return true;
}
bool NETGENPlugin_NETGEN_2D_ONLY::Compute(SMESH_Mesh& aMesh,
const TopoDS_Shape& aShape)
{
MESSAGE("NETGENPlugin_NETGEN_2D_ONLY::Compute()");
SMESHDS_Mesh* meshDS = aMesh.GetMeshDS();
int faceID = meshDS->ShapeToIndex( aShape );
SMESH_MesherHelper helper(aMesh);
_quadraticMesh = helper.IsQuadraticSubMesh(aShape);
helper.SetElementsOnShape( true );
const bool ignoreMediumNodes = _quadraticMesh;
// ------------------------
// 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 );
if ( problem && !problem->IsOK() )
return error( problem );
int nbWires = wires.size();
if ( nbWires == 0 )
return error( "Problem in StdMeshers_FaceSide::GetFaceWires()");
if ( wires[0]->NbSegments() < 3 ) // ex: a circle with 2 segments
return error(COMPERR_BAD_INPUT_MESH,
SMESH_Comment("Too few segments: ")<<wires[0]->NbSegments());
// -------------------------
// Make input netgen mesh
// -------------------------
Ng_Init();
netgen::Mesh * ngMesh = new netgen::Mesh ();
netgen::OCCGeometry occgeo;
NETGENPlugin_Mesher::PrepareOCCgeometry( occgeo, F, aMesh );
occgeo.fmap.Clear(); // face can be reversed, which is wrong in this case (issue 19978)
occgeo.fmap.Add( F );
vector< const SMDS_MeshNode* > nodeVec;
problem = AddSegmentsToMesh( *ngMesh, occgeo, wires, helper, nodeVec );
if ( problem && !problem->IsOK() ) {
delete ngMesh; Ng_Exit();
return error( problem );
}
// --------------------
// compute edge length
// --------------------
double edgeLength = 0;
if (_hypLengthFromEdges || (!_hypLengthFromEdges && !_hypMaxElementArea))
{
int nbSegments = 0;
for ( int iW = 0; iW < nbWires; ++iW )
{
edgeLength += wires[ iW ]->Length();
nbSegments += wires[ iW ]->NbSegments();
}
if ( nbSegments )
edgeLength /= nbSegments;
}
if ( _hypMaxElementArea )
{
double maxArea = _hypMaxElementArea->GetMaxArea();
edgeLength = sqrt(2. * maxArea/sqrt(3.0));
}
if ( edgeLength < DBL_MIN )
edgeLength = occgeo.GetBoundingBox().Diam();
//cout << " edgeLength = " << edgeLength << endl;
netgen::mparam.maxh = edgeLength;
netgen::mparam.quad = _hypQuadranglePreference ? 1 : 0;
//ngMesh->SetGlobalH ( edgeLength );
// -------------------------
// Generate surface mesh
// -------------------------
char *optstr = 0;
int startWith = MESHCONST_MESHSURFACE;
int endWith = MESHCONST_OPTSURFACE;
int err = 1;
try {
#if (OCC_VERSION_MAJOR << 16 | OCC_VERSION_MINOR << 8 | OCC_VERSION_MAINTENANCE) > 0x060100
OCC_CATCH_SIGNALS;
#endif
#ifdef NETGEN_V5
err = netgen::OCCGenerateMesh(occgeo, ngMesh,netgen::mparam, startWith, endWith);
#else
err = netgen::OCCGenerateMesh(occgeo, ngMesh, startWith, endWith, optstr);
#endif
}
catch (Standard_Failure& ex) {
string comment = ex.DynamicType()->Name();
if ( ex.GetMessageString() && strlen( ex.GetMessageString() )) {
comment += ": ";
comment += ex.GetMessageString();
}
error(COMPERR_OCC_EXCEPTION, comment);
}
catch (NgException exc) {
error( SMESH_Comment("NgException: ") << exc.What() );
}
catch (...) {
error(COMPERR_EXCEPTION,"Exception in netgen::OCCGenerateMesh()");
}
// ----------------------------------------------------
// Fill the SMESHDS with the generated nodes and faces
// ----------------------------------------------------
int nbNodes = ngMesh->GetNP();
int nbFaces = ngMesh->GetNSE();
int nbInputNodes = nodeVec.size();
nodeVec.resize( nbNodes, 0 );
// add nodes
for ( int i = nbInputNodes + 1; i <= nbNodes; ++i )
{
const MeshPoint& ngPoint = ngMesh->Point(i);
SMDS_MeshNode * node = meshDS->AddNode(ngPoint(0), ngPoint(1), ngPoint(2));
nodeVec[ i-1 ] = node;
}
// create faces
bool reverse = ( aShape.Orientation() == TopAbs_REVERSED );
for ( int i = 1; i <= nbFaces ; ++i )
{
const Element2d& elem = ngMesh->SurfaceElement(i);
vector<const SMDS_MeshNode*> nodes( elem.GetNP() );
for (int j=1; j <= elem.GetNP(); ++j)
{
int pind = elem.PNum(j);
const SMDS_MeshNode* node = nodeVec.at(pind-1);
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);
}
}
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]);
}
Ng_DeleteMesh((nglib::Ng_Mesh*)ngMesh);
Ng_Exit();
NETGENPlugin_Mesher::RemoveTmpFiles();
return !err;
}
static bool checkConformIgnoredAlgos(SMESH_Mesh& aMesh,
SMESH_subMesh* aSubMesh,
const SMESH_Algo* aGlobIgnoAlgo,
const SMESH_Algo* aLocIgnoAlgo,
bool & checkConform,
set<SMESH_subMesh*>& aCheckedMap,
list< SMESH_Gen::TAlgoStateError > & theErrors)
{
ASSERT( aSubMesh );
if ( aSubMesh->GetSubShape().ShapeType() == TopAbs_VERTEX)
return true;
bool ret = true;
const list<const SMESHDS_Hypothesis*>& listHyp =
aMesh.GetMeshDS()->GetHypothesis( aSubMesh->GetSubShape() );
list<const SMESHDS_Hypothesis*>::const_iterator it=listHyp.begin();
for ( ; it != listHyp.end(); it++)
{
const SMESHDS_Hypothesis * aHyp = *it;
if (aHyp->GetType() == SMESHDS_Hypothesis::PARAM_ALGO)
continue;
const SMESH_Algo* algo = dynamic_cast<const SMESH_Algo*> (aHyp);
ASSERT ( algo );
if ( aLocIgnoAlgo ) // algo is hidden by a local algo of upper dim
{
theErrors.push_back( SMESH_Gen::TAlgoStateError() );
theErrors.back().Set( SMESH_Hypothesis::HYP_HIDDEN_ALGO, algo, false );
INFOS( "Local <" << algo->GetName() << "> is hidden by local <"
<< aLocIgnoAlgo->GetName() << ">");
}
else
{
bool isGlobal = (aMesh.IsMainShape( aSubMesh->GetSubShape() ));
int dim = algo->GetDim();
int aMaxGlobIgnoDim = ( aGlobIgnoAlgo ? aGlobIgnoAlgo->GetDim() : -1 );
bool isNeededDim = ( aGlobIgnoAlgo ? aGlobIgnoAlgo->NeedLowerHyps( dim ) : false );
if (( dim < aMaxGlobIgnoDim && !isNeededDim ) &&
( isGlobal || !aGlobIgnoAlgo->SupportSubmeshes() ))
{
// algo is hidden by a global algo
theErrors.push_back( SMESH_Gen::TAlgoStateError() );
theErrors.back().Set( SMESH_Hypothesis::HYP_HIDDEN_ALGO, algo, true );
INFOS( ( isGlobal ? "Global" : "Local" )
<< " <" << algo->GetName() << "> is hidden by global <"
<< aGlobIgnoAlgo->GetName() << ">");
}
else if ( !algo->NeedDiscreteBoundary() && !isGlobal)
{
// local algo is not hidden and hides algos on sub-shapes
if (checkConform && !aSubMesh->IsConform( algo ))
{
ret = false;
checkConform = false; // no more check conformity
INFOS( "ERROR: Local <" << algo->GetName() <<
"> would produce not conform mesh: "
"<Not Conform Mesh Allowed> hypotesis is missing");
theErrors.push_back( SMESH_Gen::TAlgoStateError() );
theErrors.back().Set( SMESH_Hypothesis::HYP_NOTCONFORM, algo, false );
}
// sub-algos will be hidden by a local <algo> if <algo> does not support sub-meshes
if ( algo->SupportSubmeshes() )
algo = 0;
SMESH_subMeshIteratorPtr revItSub =
aSubMesh->getDependsOnIterator( /*includeSelf=*/false, /*complexShapeFirst=*/true);
bool checkConform2 = false;
while ( revItSub->more() )
{
SMESH_subMesh* sm = revItSub->next();
checkConformIgnoredAlgos (aMesh, sm, aGlobIgnoAlgo,
algo, checkConform2, aCheckedMap, theErrors);
aCheckedMap.insert( sm );
}
}
}
}
return ret;
}
bool NETGENPlugin_NETGEN_3D::Compute(SMESH_Mesh& aMesh,
const TopoDS_Shape& aShape)
{
netgen::multithread.terminate = 0;
netgen::multithread.task = "Volume meshing";
_progressByTic = -1.;
SMESHDS_Mesh* meshDS = aMesh.GetMeshDS();
SMESH_MesherHelper helper(aMesh);
bool _quadraticMesh = helper.IsQuadraticSubMesh(aShape);
helper.SetElementsOnShape( true );
int Netgen_NbOfNodes = 0;
double Netgen_point[3];
int Netgen_triangle[3];
NETGENPlugin_NetgenLibWrapper ngLib;
Ng_Mesh * Netgen_mesh = ngLib._ngMesh;
// vector of nodes in which node index == netgen ID
vector< const SMDS_MeshNode* > nodeVec;
{
const int invalid_ID = -1;
SMESH::Controls::Area areaControl;
SMESH::Controls::TSequenceOfXYZ nodesCoords;
// maps nodes to ng ID
typedef map< const SMDS_MeshNode*, int, TIDCompare > TNodeToIDMap;
typedef TNodeToIDMap::value_type TN2ID;
TNodeToIDMap nodeToNetgenID;
// find internal shapes
NETGENPlugin_Internals internals( aMesh, aShape, /*is3D=*/true );
// ---------------------------------
// Feed the Netgen with surface mesh
// ---------------------------------
TopAbs_ShapeEnum mainType = aMesh.GetShapeToMesh().ShapeType();
bool checkReverse = ( mainType == TopAbs_COMPOUND || mainType == TopAbs_COMPSOLID );
SMESH_ProxyMesh::Ptr proxyMesh( new SMESH_ProxyMesh( aMesh ));
if ( _viscousLayersHyp )
{
netgen::multithread.percent = 3;
proxyMesh = _viscousLayersHyp->Compute( aMesh, aShape );
if ( !proxyMesh )
return false;
}
if ( aMesh.NbQuadrangles() > 0 )
{
netgen::multithread.percent = 6;
StdMeshers_QuadToTriaAdaptor* Adaptor = new StdMeshers_QuadToTriaAdaptor;
Adaptor->Compute(aMesh,aShape,proxyMesh.get());
proxyMesh.reset( Adaptor );
}
for ( TopExp_Explorer exFa( aShape, TopAbs_FACE ); exFa.More(); exFa.Next())
{
const TopoDS_Shape& aShapeFace = exFa.Current();
int faceID = meshDS->ShapeToIndex( aShapeFace );
bool isInternalFace = internals.isInternalShape( faceID );
bool isRev = false;
if ( checkReverse && !isInternalFace &&
helper.NbAncestors(aShapeFace, aMesh, aShape.ShapeType()) > 1 )
// IsReversedSubMesh() can work wrong on strongly curved faces,
// so we use it as less as possible
isRev = helper.IsReversedSubMesh( TopoDS::Face( aShapeFace ));
const SMESHDS_SubMesh * aSubMeshDSFace = proxyMesh->GetSubMesh( aShapeFace );
if ( !aSubMeshDSFace ) continue;
SMDS_ElemIteratorPtr iteratorElem = aSubMeshDSFace->GetElements();
while ( iteratorElem->more() ) // loop on elements on a geom face
{
// check mesh face
const SMDS_MeshElement* elem = iteratorElem->next();
if ( !elem )
return error( COMPERR_BAD_INPUT_MESH, "Null element encounters");
if ( elem->NbCornerNodes() != 3 )
return error( COMPERR_BAD_INPUT_MESH, "Not triangle element encounters");
// Add nodes of triangles and triangles them-selves to netgen mesh
// add three nodes of triangle
bool hasDegen = false;
for ( int iN = 0; iN < 3; ++iN )
{
const SMDS_MeshNode* node = elem->GetNode( iN );
const int shapeID = node->getshapeId();
if ( node->GetPosition()->GetTypeOfPosition() == SMDS_TOP_EDGE &&
helper.IsDegenShape( shapeID ))
{
// ignore all nodes on degeneraged edge and use node on its vertex instead
TopoDS_Shape vertex = TopoDS_Iterator( meshDS->IndexToShape( shapeID )).Value();
node = SMESH_Algo::VertexNode( TopoDS::Vertex( vertex ), meshDS );
hasDegen = true;
}
int& ngID = nodeToNetgenID.insert(TN2ID( node, invalid_ID )).first->second;
if ( ngID == invalid_ID )
{
ngID = ++Netgen_NbOfNodes;
Netgen_point [ 0 ] = node->X();
Netgen_point [ 1 ] = node->Y();
Netgen_point [ 2 ] = node->Z();
Ng_AddPoint(Netgen_mesh, Netgen_point);
}
Netgen_triangle[ isRev ? 2-iN : iN ] = ngID;
}
// add triangle
if ( hasDegen && (Netgen_triangle[0] == Netgen_triangle[1] ||
Netgen_triangle[0] == Netgen_triangle[2] ||
Netgen_triangle[2] == Netgen_triangle[1] ))
continue;
Ng_AddSurfaceElement(Netgen_mesh, NG_TRIG, Netgen_triangle);
if ( isInternalFace && !proxyMesh->IsTemporary( elem ))
{
swap( Netgen_triangle[1], Netgen_triangle[2] );
Ng_AddSurfaceElement(Netgen_mesh, NG_TRIG, Netgen_triangle);
}
} // loop on elements on a face
} // loop on faces of a SOLID or SHELL
// insert old nodes into nodeVec
nodeVec.resize( nodeToNetgenID.size() + 1, 0 );
TNodeToIDMap::iterator n_id = nodeToNetgenID.begin();
for ( ; n_id != nodeToNetgenID.end(); ++n_id )
nodeVec[ n_id->second ] = n_id->first;
nodeToNetgenID.clear();
if ( internals.hasInternalVertexInSolid() )
{
netgen::OCCGeometry occgeo;
NETGENPlugin_Mesher::AddIntVerticesInSolids( occgeo,
(netgen::Mesh&) *Netgen_mesh,
nodeVec,
internals);
}
}
// -------------------------
// Generate the volume mesh
// -------------------------
return ( ngLib._isComputeOk = compute( aMesh, helper, nodeVec, Netgen_mesh));
}
bool SMESH_Gen::GetAlgoState(SMESH_Mesh& theMesh,
const TopoDS_Shape& theShape,
list< TAlgoStateError > & theErrors)
{
//MESSAGE("SMESH_Gen::CheckAlgoState");
bool ret = true;
bool hasAlgo = false;
SMESH_subMesh* sm = theMesh.GetSubMesh(theShape);
const SMESHDS_Mesh* meshDS = theMesh.GetMeshDS();
TopoDS_Shape mainShape = meshDS->ShapeToMesh();
// -----------------
// get global algos
// -----------------
const SMESH_Algo* aGlobAlgoArr[] = {0,0,0,0};
const list<const SMESHDS_Hypothesis*>& listHyp = meshDS->GetHypothesis( mainShape );
list<const SMESHDS_Hypothesis*>::const_iterator it=listHyp.begin();
for ( ; it != listHyp.end(); it++)
{
const SMESHDS_Hypothesis * aHyp = *it;
if (aHyp->GetType() == SMESHDS_Hypothesis::PARAM_ALGO)
continue;
const SMESH_Algo* algo = dynamic_cast<const SMESH_Algo*> (aHyp);
ASSERT ( algo );
int dim = algo->GetDim();
aGlobAlgoArr[ dim ] = algo;
hasAlgo = true;
}
// --------------------------------------------------------
// info on algos that will be ignored because of ones that
// don't NeedDiscreteBoundary() attached to super-shapes,
// check that a conform mesh will be produced
// --------------------------------------------------------
// find a global algo possibly hiding sub-algos
int dim;
const SMESH_Algo* aGlobIgnoAlgo = 0;
for (dim = 3; dim > 0; dim--)
{
if (aGlobAlgoArr[ dim ] &&
!aGlobAlgoArr[ dim ]->NeedDiscreteBoundary() /*&&
!aGlobAlgoArr[ dim ]->SupportSubmeshes()*/ )
{
aGlobIgnoAlgo = aGlobAlgoArr[ dim ];
break;
}
}
set<SMESH_subMesh*> aCheckedSubs;
bool checkConform = ( !theMesh.IsNotConformAllowed() );
// loop on theShape and its sub-shapes
SMESH_subMeshIteratorPtr revItSub = sm->getDependsOnIterator( /*includeSelf=*/true,
/*complexShapeFirst=*/true);
while ( revItSub->more() )
{
SMESH_subMesh* smToCheck = revItSub->next();
if ( smToCheck->GetSubShape().ShapeType() == TopAbs_VERTEX)
break;
if ( aCheckedSubs.insert( smToCheck ).second ) // not yet checked
if (!checkConformIgnoredAlgos (theMesh, smToCheck, aGlobIgnoAlgo,
0, checkConform, aCheckedSubs, theErrors))
ret = false;
if ( smToCheck->GetAlgoState() != SMESH_subMesh::NO_ALGO )
hasAlgo = true;
}
// ----------------------------------------------------------------
// info on missing hypothesis and find out if all needed algos are
// well defined
// ----------------------------------------------------------------
//MESSAGE( "---info on missing hypothesis and find out if all needed algos are");
// find max dim of global algo
int aTopAlgoDim = 0;
for (dim = 3; dim > 0; dim--)
{
if (aGlobAlgoArr[ dim ])
{
aTopAlgoDim = dim;
break;
}
}
bool checkNoAlgo = theMesh.HasShapeToMesh() ? bool( aTopAlgoDim ) : false;
bool globalChecked[] = { false, false, false, false };
// loop on theShape and its sub-shapes
aCheckedSubs.clear();
revItSub = sm->getDependsOnIterator( /*includeSelf=*/true, /*complexShapeFirst=*/true);
while ( revItSub->more() )
{
SMESH_subMesh* smToCheck = revItSub->next();
if ( smToCheck->GetSubShape().ShapeType() == TopAbs_VERTEX)
break;
if (!checkMissing (this, theMesh, smToCheck, aTopAlgoDim,
globalChecked, checkNoAlgo, aCheckedSubs, theErrors))
{
ret = false;
if (smToCheck->GetAlgoState() == SMESH_subMesh::NO_ALGO )
checkNoAlgo = false;
}
}
if ( !hasAlgo ) {
ret = false;
theErrors.push_back( TAlgoStateError() );
theErrors.back().Set( SMESH_Hypothesis::HYP_MISSING, theMesh.HasShapeToMesh() ? 1 : 3, true );
}
return ret;
}
bool SMESH_Gen::Compute(SMESH_Mesh & aMesh,
const TopoDS_Shape & aShape,
const bool aShapeOnly /*=false*/,
const bool anUpward /*=false*/,
const ::MeshDimension aDim /*=::MeshDim_3D*/,
TSetOfInt* aShapesId /*=0*/)
{
MESSAGE("SMESH_Gen::Compute");
MEMOSTAT;
bool ret = true;
SMESH_subMesh *sm = aMesh.GetSubMesh(aShape);
const bool includeSelf = true;
const bool complexShapeFirst = true;
const int globalAlgoDim = 100;
SMESH_subMeshIteratorPtr smIt;
// Fix of Issue 22150. Due to !BLSURF->OnlyUnaryInput(), BLSURF computes edges
// that must be computed by Projection 1D-2D when Projection asks to compute
// one face only.
SMESH_subMesh::compute_event computeEvent =
aShapeOnly ? SMESH_subMesh::COMPUTE_SUBMESH : SMESH_subMesh::COMPUTE;
if ( anUpward ) // is called from the below code in this method
{
// ===============================================
// Mesh all the sub-shapes starting from vertices
// ===============================================
smIt = sm->getDependsOnIterator(includeSelf, !complexShapeFirst);
while ( smIt->more() )
{
SMESH_subMesh* smToCompute = smIt->next();
// do not mesh vertices of a pseudo shape
const TopoDS_Shape& shape = smToCompute->GetSubShape();
const TopAbs_ShapeEnum shapeType = shape.ShapeType();
if ( !aMesh.HasShapeToMesh() && shapeType == TopAbs_VERTEX )
continue;
// check for preview dimension limitations
if ( aShapesId && GetShapeDim( shapeType ) > (int)aDim )
{
// clear compute state not to show previous compute errors
// if preview invoked less dimension less than previous
smToCompute->ComputeStateEngine( SMESH_subMesh::CHECK_COMPUTE_STATE );
continue;
}
if (smToCompute->GetComputeState() == SMESH_subMesh::READY_TO_COMPUTE)
{
if (_compute_canceled)
return false;
setCurrentSubMesh( smToCompute );
smToCompute->ComputeStateEngine( computeEvent );
setCurrentSubMesh( NULL );
}
// we check all the sub-meshes here and detect if any of them failed to compute
if (smToCompute->GetComputeState() == SMESH_subMesh::FAILED_TO_COMPUTE &&
( shapeType != TopAbs_EDGE || !SMESH_Algo::isDegenerated( TopoDS::Edge( shape ))))
ret = false;
else if ( aShapesId )
aShapesId->insert( smToCompute->GetId() );
}
//aMesh.GetMeshDS()->Modified();
return ret;
}
else
{
// ================================================================
// Apply algos that do NOT require discreteized boundaries
// ("all-dimensional") and do NOT support sub-meshes, starting from
// the most complex shapes and collect sub-meshes with algos that
// DO support sub-meshes
// ================================================================
list< SMESH_subMesh* > smWithAlgoSupportingSubmeshes[4]; // for each dim
// map to sort sm with same dim algos according to dim of
// the shape the algo assigned to (issue 0021217).
// Other issues influenced the algo applying order:
// 21406, 21556, 21893, 20206
multimap< int, SMESH_subMesh* > shDim2sm;
multimap< int, SMESH_subMesh* >::reverse_iterator shDim2smIt;
TopoDS_Shape algoShape;
int prevShapeDim = -1, aShapeDim;
smIt = sm->getDependsOnIterator(includeSelf, complexShapeFirst);
while ( smIt->more() )
{
SMESH_subMesh* smToCompute = smIt->next();
if ( smToCompute->GetComputeState() != SMESH_subMesh::READY_TO_COMPUTE )
continue;
const TopoDS_Shape& aSubShape = smToCompute->GetSubShape();
aShapeDim = GetShapeDim( aSubShape );
if ( aShapeDim < 1 ) break;
// check for preview dimension limitations
if ( aShapesId && aShapeDim > (int)aDim )
continue;
SMESH_Algo* algo = GetAlgo( smToCompute, &algoShape );
if ( algo && !algo->NeedDiscreteBoundary() )
{
if ( algo->SupportSubmeshes() )
{
// reload sub-meshes from shDim2sm into smWithAlgoSupportingSubmeshes
// so that more local algos to go first
if ( prevShapeDim != aShapeDim )
{
prevShapeDim = aShapeDim;
for ( shDim2smIt = shDim2sm.rbegin(); shDim2smIt != shDim2sm.rend(); ++shDim2smIt )
if ( shDim2smIt->first == globalAlgoDim )
smWithAlgoSupportingSubmeshes[ aShapeDim ].push_back( shDim2smIt->second );
else
smWithAlgoSupportingSubmeshes[ aShapeDim ].push_front( shDim2smIt->second );
shDim2sm.clear();
}
// add smToCompute to shDim2sm map
if ( algoShape.IsSame( aMesh.GetShapeToMesh() ))
{
aShapeDim = globalAlgoDim; // to compute last
}
else
{
aShapeDim = GetShapeDim( algoShape );
if ( algoShape.ShapeType() == TopAbs_COMPOUND )
{
TopoDS_Iterator it( algoShape );
aShapeDim += GetShapeDim( it.Value() );
}
}
shDim2sm.insert( make_pair( aShapeDim, smToCompute ));
}
else // Compute w/o support of sub-meshes
{
if (_compute_canceled)
return false;
setCurrentSubMesh( smToCompute );
smToCompute->ComputeStateEngine( computeEvent );
setCurrentSubMesh( NULL );
if ( aShapesId )
aShapesId->insert( smToCompute->GetId() );
}
}
}
// reload sub-meshes from shDim2sm into smWithAlgoSupportingSubmeshes
for ( shDim2smIt = shDim2sm.rbegin(); shDim2smIt != shDim2sm.rend(); ++shDim2smIt )
if ( shDim2smIt->first == globalAlgoDim )
smWithAlgoSupportingSubmeshes[3].push_back( shDim2smIt->second );
else
smWithAlgoSupportingSubmeshes[0].push_front( shDim2smIt->second );
// ======================================================
// Apply all-dimensional algorithms supporing sub-meshes
// ======================================================
std::vector< SMESH_subMesh* > smVec;
for ( aShapeDim = 0; aShapeDim < 4; ++aShapeDim )
{
// ------------------------------------------------
// sort list of sub-meshes according to mesh order
// ------------------------------------------------
smVec.assign( smWithAlgoSupportingSubmeshes[ aShapeDim ].begin(),
smWithAlgoSupportingSubmeshes[ aShapeDim ].end() );
aMesh.SortByMeshOrder( smVec );
// ------------------------------------------------------------
// compute sub-meshes with local uni-dimensional algos under
// sub-meshes with all-dimensional algos
// ------------------------------------------------------------
// start from lower shapes
for ( size_t i = 0; i < smVec.size(); ++i )
{
sm = smVec[i];
// get a shape the algo is assigned to
if ( !GetAlgo( sm, & algoShape ))
continue; // strange...
// look for more local algos
smIt = sm->getDependsOnIterator(!includeSelf, !complexShapeFirst);
while ( smIt->more() )
{
SMESH_subMesh* smToCompute = smIt->next();
const TopoDS_Shape& aSubShape = smToCompute->GetSubShape();
const int aShapeDim = GetShapeDim( aSubShape );
//if ( aSubShape.ShapeType() == TopAbs_VERTEX ) continue;
if ( aShapeDim < 1 ) continue;
// check for preview dimension limitations
if ( aShapesId && GetShapeDim( aSubShape.ShapeType() ) > (int)aDim )
continue;
SMESH_HypoFilter filter( SMESH_HypoFilter::IsAlgo() );
filter
.And( SMESH_HypoFilter::IsApplicableTo( aSubShape ))
.And( SMESH_HypoFilter::IsMoreLocalThan( algoShape, aMesh ));
if ( SMESH_Algo* subAlgo = (SMESH_Algo*) aMesh.GetHypothesis( smToCompute, filter, true))
{
if ( ! subAlgo->NeedDiscreteBoundary() ) continue;
SMESH_Hypothesis::Hypothesis_Status status;
if ( subAlgo->CheckHypothesis( aMesh, aSubShape, status ))
// mesh a lower smToCompute starting from vertices
Compute( aMesh, aSubShape, aShapeOnly, /*anUpward=*/true, aDim, aShapesId );
}
}
}
// --------------------------------
// apply the all-dimensional algos
// --------------------------------
for ( size_t i = 0; i < smVec.size(); ++i )
{
sm = smVec[i];
if ( sm->GetComputeState() == SMESH_subMesh::READY_TO_COMPUTE)
{
const TopAbs_ShapeEnum shapeType = sm->GetSubShape().ShapeType();
// check for preview dimension limitations
if ( aShapesId && GetShapeDim( shapeType ) > (int)aDim )
continue;
if (_compute_canceled)
return false;
setCurrentSubMesh( sm );
sm->ComputeStateEngine( computeEvent );
setCurrentSubMesh( NULL );
if ( aShapesId )
aShapesId->insert( sm->GetId() );
}
}
} // loop on shape dimensions
// -----------------------------------------------
// mesh the rest sub-shapes starting from vertices
// -----------------------------------------------
ret = Compute( aMesh, aShape, aShapeOnly, /*anUpward=*/true, aDim, aShapesId );
}
MESSAGE( "VSR - SMESH_Gen::Compute() finished, OK = " << ret);
MEMOSTAT;
SMESHDS_Mesh *myMesh = aMesh.GetMeshDS();
MESSAGE("*** compactMesh after compute");
myMesh->compactMesh();
// fix quadratic mesh by bending iternal links near concave boundary
if ( aShape.IsSame( aMesh.GetShapeToMesh() ) &&
!aShapesId && // not preview
ret ) // everything is OK
{
SMESH_MesherHelper aHelper( aMesh );
if ( aHelper.IsQuadraticMesh() != SMESH_MesherHelper::LINEAR )
{
aHelper.FixQuadraticElements( sm->GetComputeError() );
}
}
return ret;
}
bool StdMeshers_RadialPrism_3D::Compute(SMESH_Mesh& aMesh, const TopoDS_Shape& aShape)
{
TopExp_Explorer exp;
SMESHDS_Mesh * meshDS = aMesh.GetMeshDS();
myHelper = new SMESH_MesherHelper( aMesh );
myHelper->IsQuadraticSubMesh( aShape );
// to delete helper at exit from Compute()
std::auto_ptr<SMESH_MesherHelper> helperDeleter( myHelper );
// get 2 shells
TopoDS_Solid solid = TopoDS::Solid( aShape );
TopoDS_Shell outerShell = BRepClass3d::OuterShell( solid );
TopoDS_Shape innerShell;
int nbShells = 0;
for ( TopoDS_Iterator It (solid); It.More(); It.Next(), ++nbShells )
if ( !outerShell.IsSame( It.Value() ))
innerShell = It.Value();
if ( nbShells != 2 )
return error(COMPERR_BAD_SHAPE, SMESH_Comment("Must be 2 shells but not ")<<nbShells);
// ----------------------------------
// Associate subshapes of the shells
// ----------------------------------
TAssocTool::TShapeShapeMap shape2ShapeMap;
if ( !TAssocTool::FindSubShapeAssociation( outerShell, &aMesh,
innerShell, &aMesh,
shape2ShapeMap) )
return error(COMPERR_BAD_SHAPE,"Topology of inner and outer shells seems different" );
// ------------------
// Make mesh
// ------------------
TNode2ColumnMap node2columnMap;
myLayerPositions.clear();
for ( exp.Init( outerShell, TopAbs_FACE ); exp.More(); exp.Next() )
{
// Corresponding subshapes
TopoDS_Face outFace = TopoDS::Face( exp.Current() );
TopoDS_Face inFace;
if ( !shape2ShapeMap.IsBound( outFace )) {
return error(SMESH_Comment("Corresponding inner face not found for face #" )
<< meshDS->ShapeToIndex( outFace ));
} else {
inFace = TopoDS::Face( shape2ShapeMap( outFace ));
}
// Find matching nodes of in and out faces
TNodeNodeMap nodeIn2OutMap;
if ( ! TAssocTool::FindMatchingNodesOnFaces( inFace, &aMesh, outFace, &aMesh,
shape2ShapeMap, nodeIn2OutMap ))
return error(COMPERR_BAD_INPUT_MESH,SMESH_Comment("Mesh on faces #")
<< meshDS->ShapeToIndex( outFace ) << " and "
<< meshDS->ShapeToIndex( inFace ) << " seems different" );
// Create volumes
SMDS_ElemIteratorPtr faceIt = meshDS->MeshElements( inFace )->GetElements();
while ( faceIt->more() ) // loop on faces on inFace
{
const SMDS_MeshElement* face = faceIt->next();
if ( !face || face->GetType() != SMDSAbs_Face )
continue;
int nbNodes = face->NbNodes();
if ( face->IsQuadratic() )
nbNodes /= 2;
// find node columns for each node
vector< const TNodeColumn* > columns( nbNodes );
for ( int i = 0; i < nbNodes; ++i )
{
const SMDS_MeshNode* nIn = face->GetNode( i );
TNode2ColumnMap::iterator n_col = node2columnMap.find( nIn );
if ( n_col != node2columnMap.end() ) {
columns[ i ] = & n_col->second;
}
else {
TNodeNodeMap::iterator nInOut = nodeIn2OutMap.find( nIn );
if ( nInOut == nodeIn2OutMap.end() )
RETURN_BAD_RESULT("No matching node for "<< nIn->GetID() <<
" in face "<< face->GetID());
columns[ i ] = makeNodeColumn( node2columnMap, nIn, nInOut->second );
}
}
StdMeshers_Prism_3D::AddPrisms( columns, myHelper );
}
} // loop on faces of out shell
return true;
}
bool NETGENPlugin_NETGEN_3D::Compute(SMESH_Mesh& aMesh,
const TopoDS_Shape& aShape)
{
MESSAGE("NETGENPlugin_NETGEN_3D::Compute with maxElmentsize = " << _maxElementVolume);
SMESHDS_Mesh* meshDS = aMesh.GetMeshDS();
const int invalid_ID = -1;
SMESH::Controls::Area areaControl;
SMESH::Controls::TSequenceOfXYZ nodesCoords;
// -------------------------------------------------------------------
// get triangles on aShell and make a map of nodes to Netgen node IDs
// -------------------------------------------------------------------
SMESH_MesherHelper helper(aMesh);
SMESH_MesherHelper* myTool = &helper;
bool _quadraticMesh = myTool->IsQuadraticSubMesh(aShape);
typedef map< const SMDS_MeshNode*, int, TIDCompare > TNodeToIDMap;
TNodeToIDMap nodeToNetgenID;
list< const SMDS_MeshElement* > triangles;
list< bool > isReversed; // orientation of triangles
TopAbs_ShapeEnum mainType = aMesh.GetShapeToMesh().ShapeType();
bool checkReverse = ( mainType == TopAbs_COMPOUND || mainType == TopAbs_COMPSOLID );
// for the degeneraged edge: ignore all but one node on it;
// map storing ids of degen edges and vertices and their netgen id:
map< int, int* > degenShapeIdToPtrNgId;
map< int, int* >::iterator shId_ngId;
list< int > degenNgIds;
StdMeshers_QuadToTriaAdaptor Adaptor;
Adaptor.Compute(aMesh,aShape);
for (TopExp_Explorer exp(aShape,TopAbs_FACE); exp.More(); exp.Next())
{
const TopoDS_Shape& aShapeFace = exp.Current();
const SMESHDS_SubMesh * aSubMeshDSFace = meshDS->MeshElements( aShapeFace );
if ( aSubMeshDSFace )
{
bool isRev = false;
if ( checkReverse && helper.NbAncestors(aShapeFace, aMesh, aShape.ShapeType()) > 1 )
// IsReversedSubMesh() can work wrong on strongly curved faces,
// so we use it as less as possible
isRev = SMESH_Algo::IsReversedSubMesh( TopoDS::Face(aShapeFace), meshDS );
SMDS_ElemIteratorPtr iteratorElem = aSubMeshDSFace->GetElements();
while ( iteratorElem->more() ) // loop on elements on a face
{
// check element
const SMDS_MeshElement* elem = iteratorElem->next();
if ( !elem )
return error( COMPERR_BAD_INPUT_MESH, "Null element encounters");
bool isTraingle = ( elem->NbNodes()==3 || (_quadraticMesh && elem->NbNodes()==6 ));
if ( !isTraingle ) {
//return error( COMPERR_BAD_INPUT_MESH,
// SMESH_Comment("Not triangle element ")<<elem->GetID());
// using adaptor
const list<const SMDS_FaceOfNodes*>* faces = Adaptor.GetTriangles(elem);
if(faces==0) {
return error( COMPERR_BAD_INPUT_MESH,
SMESH_Comment("Not triangles in adaptor for element ")<<elem->GetID());
}
list<const SMDS_FaceOfNodes*>::const_iterator itf = faces->begin();
for(; itf!=faces->end(); itf++ ) {
triangles.push_back( (*itf) );
isReversed.push_back( isRev );
// put triange's nodes to nodeToNetgenID map
SMDS_ElemIteratorPtr triangleNodesIt = (*itf)->nodesIterator();
while ( triangleNodesIt->more() ) {
const SMDS_MeshNode * node =
static_cast<const SMDS_MeshNode *>(triangleNodesIt->next());
if(myTool->IsMedium(node))
continue;
nodeToNetgenID.insert( make_pair( node, invalid_ID ));
}
}
}
else {
// keep a triangle
triangles.push_back( elem );
isReversed.push_back( isRev );
// put elem nodes to nodeToNetgenID map
SMDS_ElemIteratorPtr triangleNodesIt = elem->nodesIterator();
while ( triangleNodesIt->more() ) {
const SMDS_MeshNode * node =
static_cast<const SMDS_MeshNode *>(triangleNodesIt->next());
if(myTool->IsMedium(node))
continue;
nodeToNetgenID.insert( make_pair( node, invalid_ID ));
}
}
#ifdef _DEBUG_
// check if a trainge is degenerated
areaControl.GetPoints( elem, nodesCoords );
double area = areaControl.GetValue( nodesCoords );
if ( area <= DBL_MIN ) {
MESSAGE( "Warning: Degenerated " << elem );
}
#endif
}
// look for degeneraged edges and vetices
for (TopExp_Explorer expE(aShapeFace,TopAbs_EDGE); expE.More(); expE.Next())
{
TopoDS_Edge aShapeEdge = TopoDS::Edge( expE.Current() );
if ( BRep_Tool::Degenerated( aShapeEdge ))
{
degenNgIds.push_back( invalid_ID );
int* ptrIdOnEdge = & degenNgIds.back();
// remember edge id
int edgeID = meshDS->ShapeToIndex( aShapeEdge );
degenShapeIdToPtrNgId.insert( make_pair( edgeID, ptrIdOnEdge ));
// remember vertex id
int vertexID = meshDS->ShapeToIndex( TopExp::FirstVertex( aShapeEdge ));
degenShapeIdToPtrNgId.insert( make_pair( vertexID, ptrIdOnEdge ));
}
}
}
}
// ---------------------------------
// Feed the Netgen with surface mesh
// ---------------------------------
int Netgen_NbOfNodes = 0;
int Netgen_param2ndOrder = 0;
double Netgen_paramFine = 1.;
double Netgen_paramSize = pow( 72, 1/6. ) * pow( _maxElementVolume, 1/3. );
double Netgen_point[3];
int Netgen_triangle[3];
int Netgen_tetrahedron[4];
Ng_Init();
Ng_Mesh * Netgen_mesh = Ng_NewMesh();
// set nodes and remember thier netgen IDs
bool isDegen = false, hasDegen = !degenShapeIdToPtrNgId.empty();
TNodeToIDMap::iterator n_id = nodeToNetgenID.begin();
for ( ; n_id != nodeToNetgenID.end(); ++n_id )
{
const SMDS_MeshNode* node = n_id->first;
// ignore nodes on degenerated edge
if ( hasDegen ) {
int shapeId = node->GetPosition()->GetShapeId();
shId_ngId = degenShapeIdToPtrNgId.find( shapeId );
isDegen = ( shId_ngId != degenShapeIdToPtrNgId.end() );
if ( isDegen && *(shId_ngId->second) != invalid_ID ) {
n_id->second = *(shId_ngId->second);
continue;
}
}
Netgen_point [ 0 ] = node->X();
Netgen_point [ 1 ] = node->Y();
Netgen_point [ 2 ] = node->Z();
Ng_AddPoint(Netgen_mesh, Netgen_point);
n_id->second = ++Netgen_NbOfNodes; // set netgen ID
if ( isDegen ) // all nodes on a degen edge get one netgen ID
*(shId_ngId->second) = n_id->second;
}
// set triangles
list< const SMDS_MeshElement* >::iterator tria = triangles.begin();
list< bool >::iterator reverse = isReversed.begin();
for ( ; tria != triangles.end(); ++tria, ++reverse )
{
int i = 0;
SMDS_ElemIteratorPtr triangleNodesIt = (*tria)->nodesIterator();
while ( triangleNodesIt->more() ) {
const SMDS_MeshNode * node =
static_cast<const SMDS_MeshNode *>(triangleNodesIt->next());
if(myTool->IsMedium(node))
continue;
Netgen_triangle[ *reverse ? 2 - i : i ] = nodeToNetgenID[ node ];
++i;
}
if ( !hasDegen ||
// ignore degenerated triangles, they have 2 or 3 same ids
(Netgen_triangle[0] != Netgen_triangle[1] &&
Netgen_triangle[0] != Netgen_triangle[2] &&
Netgen_triangle[2] != Netgen_triangle[1] ))
{
Ng_AddSurfaceElement(Netgen_mesh, NG_TRIG, Netgen_triangle);
}
}
// -------------------------
// Generate the volume mesh
// -------------------------
Ng_Meshing_Parameters Netgen_param;
Netgen_param.secondorder = Netgen_param2ndOrder;
Netgen_param.fineness = Netgen_paramFine;
Netgen_param.maxh = Netgen_paramSize;
Ng_Result status;
try {
#if (OCC_VERSION_MAJOR << 16 | OCC_VERSION_MINOR << 8 | OCC_VERSION_MAINTENANCE) > 0x060100
OCC_CATCH_SIGNALS;
#endif
status = Ng_GenerateVolumeMesh(Netgen_mesh, &Netgen_param);
}
catch (Standard_Failure& exc) {
error(COMPERR_OCC_EXCEPTION, exc.GetMessageString());
status = NG_VOLUME_FAILURE;
}
catch (...) {
error("Exception in Ng_GenerateVolumeMesh()");
status = NG_VOLUME_FAILURE;
}
if ( GetComputeError()->IsOK() ) {
switch ( status ) {
case NG_SURFACE_INPUT_ERROR:
error( status, "NG_SURFACE_INPUT_ERROR");
case NG_VOLUME_FAILURE:
error( status, "NG_VOLUME_FAILURE");
case NG_STL_INPUT_ERROR:
error( status, "NG_STL_INPUT_ERROR");
case NG_SURFACE_FAILURE:
error( status, "NG_SURFACE_FAILURE");
case NG_FILE_NOT_FOUND:
error( status, "NG_FILE_NOT_FOUND");
};
}
int Netgen_NbOfNodesNew = Ng_GetNP(Netgen_mesh);
int Netgen_NbOfTetra = Ng_GetNE(Netgen_mesh);
MESSAGE("End of Volume Mesh Generation. status=" << status <<
", nb new nodes: " << Netgen_NbOfNodesNew - Netgen_NbOfNodes <<
", nb tetra: " << Netgen_NbOfTetra);
// -------------------------------------------------------------------
// Feed back the SMESHDS with the generated Nodes and Volume Elements
// -------------------------------------------------------------------
bool isOK = ( /*status == NG_OK &&*/ Netgen_NbOfTetra > 0 );// get whatever built
if ( isOK )
{
// vector of nodes in which node index == netgen ID
vector< const SMDS_MeshNode* > nodeVec ( Netgen_NbOfNodesNew + 1 );
// insert old nodes into nodeVec
for ( n_id = nodeToNetgenID.begin(); n_id != nodeToNetgenID.end(); ++n_id ) {
nodeVec.at( n_id->second ) = n_id->first;
}
// create and insert new nodes into nodeVec
int nodeIndex = Netgen_NbOfNodes + 1;
int shapeID = meshDS->ShapeToIndex( aShape );
for ( ; nodeIndex <= Netgen_NbOfNodesNew; ++nodeIndex )
{
Ng_GetPoint( Netgen_mesh, nodeIndex, Netgen_point );
SMDS_MeshNode * node = meshDS->AddNode(Netgen_point[0],
Netgen_point[1],
Netgen_point[2]);
meshDS->SetNodeInVolume(node, shapeID);
nodeVec.at(nodeIndex) = node;
}
// create tetrahedrons
for ( int elemIndex = 1; elemIndex <= Netgen_NbOfTetra; ++elemIndex )
{
Ng_GetVolumeElement(Netgen_mesh, elemIndex, Netgen_tetrahedron);
SMDS_MeshVolume * elt = myTool->AddVolume (nodeVec.at( Netgen_tetrahedron[0] ),
nodeVec.at( Netgen_tetrahedron[1] ),
nodeVec.at( Netgen_tetrahedron[2] ),
nodeVec.at( Netgen_tetrahedron[3] ));
meshDS->SetMeshElementOnShape(elt, shapeID );
}
}
Ng_DeleteMesh(Netgen_mesh);
Ng_Exit();
NETGENPlugin_Mesher::RemoveTmpFiles();
return (status == NG_OK);
}
bool StdMeshers_Hexa_3D::Compute(SMESH_Mesh & aMesh,
const TopoDS_Shape & aShape)// throw(SALOME_Exception)
{
// PAL14921. Enable catching std::bad_alloc and Standard_OutOfMemory outside
//Unexpect aCatch(SalomeException);
MESSAGE("StdMeshers_Hexa_3D::Compute");
SMESHDS_Mesh * meshDS = aMesh.GetMeshDS();
// 0. - shape and face mesh verification
// 0.1 - shape must be a solid (or a shell) with 6 faces
vector < SMESH_subMesh * >meshFaces;
for (TopExp_Explorer exp(aShape, TopAbs_FACE); exp.More(); exp.Next()) {
SMESH_subMesh *aSubMesh = aMesh.GetSubMeshContaining(exp.Current());
ASSERT(aSubMesh);
meshFaces.push_back(aSubMesh);
}
if (meshFaces.size() != 6) {
//return error(COMPERR_BAD_SHAPE, TComm(meshFaces.size())<<" instead of 6 faces in a block");
static StdMeshers_CompositeHexa_3D compositeHexa(-10, 0, aMesh.GetGen());
if ( !compositeHexa.Compute( aMesh, aShape ))
return error( compositeHexa.GetComputeError() );
return true;
}
// 0.2 - is each face meshed with Quadrangle_2D? (so, with a wire of 4 edges)
// tool for working with quadratic elements
SMESH_MesherHelper aTool (aMesh);
_quadraticMesh = aTool.IsQuadraticSubMesh(aShape);
// cube structure
typedef struct cubeStruct
{
TopoDS_Vertex V000;
TopoDS_Vertex V001;
TopoDS_Vertex V010;
TopoDS_Vertex V011;
TopoDS_Vertex V100;
TopoDS_Vertex V101;
TopoDS_Vertex V110;
TopoDS_Vertex V111;
faceQuadStruct* quad_X0;
faceQuadStruct* quad_X1;
faceQuadStruct* quad_Y0;
faceQuadStruct* quad_Y1;
faceQuadStruct* quad_Z0;
faceQuadStruct* quad_Z1;
Point3DStruct* np; // normalised 3D coordinates
} CubeStruct;
CubeStruct aCube;
// bounding faces
FaceQuadStruct* aQuads[6];
for (int i = 0; i < 6; i++)
aQuads[i] = 0;
for (int i = 0; i < 6; i++)
{
TopoDS_Shape aFace = meshFaces[i]->GetSubShape();
SMESH_Algo *algo = _gen->GetAlgo(aMesh, aFace);
string algoName = algo->GetName();
bool isAllQuad = false;
if (algoName == "Quadrangle_2D") {
SMESHDS_SubMesh * sm = meshDS->MeshElements( aFace );
if ( sm ) {
isAllQuad = true;
SMDS_ElemIteratorPtr eIt = sm->GetElements();
while ( isAllQuad && eIt->more() ) {
const SMDS_MeshElement* elem = eIt->next();
isAllQuad = ( elem->NbNodes()==4 ||(_quadraticMesh && elem->NbNodes()==8) );
}
}
}
if ( ! isAllQuad ) {
SMESH_ComputeErrorPtr err = ComputePentahedralMesh(aMesh, aShape);
return ClearAndReturn( aQuads, error(err));
}
StdMeshers_Quadrangle_2D *quadAlgo =
dynamic_cast < StdMeshers_Quadrangle_2D * >(algo);
ASSERT(quadAlgo);
try {
aQuads[i] = quadAlgo->CheckAnd2Dcompute(aMesh, aFace, _quadraticMesh);
if(!aQuads[i]) {
return error( quadAlgo->GetComputeError());
}
}
catch(SALOME_Exception & S_ex) {
return ClearAndReturn( aQuads, error(COMPERR_SLM_EXCEPTION,TComm(S_ex.what()) <<
" Raised by StdMeshers_Quadrangle_2D "
" on face #" << meshDS->ShapeToIndex( aFace )));
}
// 0.2.1 - number of points on the opposite edges must be the same
if (aQuads[i]->side[0]->NbPoints() != aQuads[i]->side[2]->NbPoints() ||
aQuads[i]->side[1]->NbPoints() != aQuads[i]->side[3]->NbPoints()
/*aQuads[i]->side[0]->NbEdges() != 1 ||
aQuads[i]->side[1]->NbEdges() != 1 ||
aQuads[i]->side[2]->NbEdges() != 1 ||
aQuads[i]->side[3]->NbEdges() != 1*/) {
MESSAGE("different number of points on the opposite edges of face " << i);
// Try to go into penta algorithm 'cause it has been improved.
SMESH_ComputeErrorPtr err = ComputePentahedralMesh(aMesh, aShape);
return ClearAndReturn( aQuads, error(err));
}
}
// 1. - identify faces and vertices of the "cube"
// 1.1 - ancestor maps vertex->edges in the cube
// TopTools_IndexedDataMapOfShapeListOfShape MS;
// TopExp::MapShapesAndAncestors(aShape, TopAbs_VERTEX, TopAbs_EDGE, MS);
// 1.2 - first face is choosen as face Y=0 of the unit cube
const TopoDS_Shape & aFace = meshFaces[0]->GetSubShape();
//const TopoDS_Face & F = TopoDS::Face(aFace);
// 1.3 - identify the 4 vertices of the face Y=0: V000, V100, V101, V001
aCube.V000 = aQuads[0]->side[0]->FirstVertex(); // will be (0,0,0) on the unit cube
aCube.V100 = aQuads[0]->side[0]->LastVertex(); // will be (1,0,0) on the unit cube
aCube.V001 = aQuads[0]->side[2]->FirstVertex(); // will be (0,0,1) on the unit cube
aCube.V101 = aQuads[0]->side[2]->LastVertex(); // will be (1,0,1) on the unit cube
TopTools_IndexedMapOfShape MV0;
TopExp::MapShapes(aFace, TopAbs_VERTEX, MV0);
aCube.V010 = OppositeVertex( aCube.V000, MV0, aQuads);
aCube.V110 = OppositeVertex( aCube.V100, MV0, aQuads);
aCube.V011 = OppositeVertex( aCube.V001, MV0, aQuads);
aCube.V111 = OppositeVertex( aCube.V101, MV0, aQuads);
// 1.6 - find remaining faces given 4 vertices
int _indY0 = 0;
int _indY1 = GetFaceIndex(aMesh, aShape, meshFaces,
aCube.V010, aCube.V011, aCube.V110, aCube.V111);
int _indZ0 = GetFaceIndex(aMesh, aShape, meshFaces,
aCube.V000, aCube.V010, aCube.V100, aCube.V110);
int _indZ1 = GetFaceIndex(aMesh, aShape, meshFaces,
aCube.V001, aCube.V011, aCube.V101, aCube.V111);
int _indX0 = GetFaceIndex(aMesh, aShape, meshFaces,
aCube.V000, aCube.V001, aCube.V010, aCube.V011);
int _indX1 = GetFaceIndex(aMesh, aShape, meshFaces,
aCube.V100, aCube.V101, aCube.V110, aCube.V111);
// IPAL21120: SIGSEGV on Meshing attached Compound with Automatic Hexadralization
if ( _indY1 < 1 || _indZ0 < 1 || _indZ1 < 1 || _indX0 < 1 || _indX1 < 1 )
return error(COMPERR_BAD_SHAPE);
aCube.quad_Y0 = aQuads[_indY0];
aCube.quad_Y1 = aQuads[_indY1];
aCube.quad_Z0 = aQuads[_indZ0];
aCube.quad_Z1 = aQuads[_indZ1];
aCube.quad_X0 = aQuads[_indX0];
aCube.quad_X1 = aQuads[_indX1];
// 1.7 - get convertion coefs from face 2D normalized to 3D normalized
Conv2DStruct cx0; // for face X=0
Conv2DStruct cx1; // for face X=1
Conv2DStruct cy0;
Conv2DStruct cy1;
Conv2DStruct cz0;
Conv2DStruct cz1;
GetConv2DCoefs(*aCube.quad_X0, meshFaces[_indX0]->GetSubShape(),
aCube.V000, aCube.V010, aCube.V011, aCube.V001, cx0);
GetConv2DCoefs(*aCube.quad_X1, meshFaces[_indX1]->GetSubShape(),
aCube.V100, aCube.V110, aCube.V111, aCube.V101, cx1);
GetConv2DCoefs(*aCube.quad_Y0, meshFaces[_indY0]->GetSubShape(),
aCube.V000, aCube.V100, aCube.V101, aCube.V001, cy0);
GetConv2DCoefs(*aCube.quad_Y1, meshFaces[_indY1]->GetSubShape(),
aCube.V010, aCube.V110, aCube.V111, aCube.V011, cy1);
GetConv2DCoefs(*aCube.quad_Z0, meshFaces[_indZ0]->GetSubShape(),
aCube.V000, aCube.V100, aCube.V110, aCube.V010, cz0);
GetConv2DCoefs(*aCube.quad_Z1, meshFaces[_indZ1]->GetSubShape(),
aCube.V001, aCube.V101, aCube.V111, aCube.V011, cz1);
// 1.8 - create a 3D structure for normalized values
int nbx = aCube.quad_Z0->side[0]->NbPoints();
if (cz0.a1 == 0.) nbx = aCube.quad_Z0->side[1]->NbPoints();
int nby = aCube.quad_X0->side[0]->NbPoints();
if (cx0.a1 == 0.) nby = aCube.quad_X0->side[1]->NbPoints();
int nbz = aCube.quad_Y0->side[0]->NbPoints();
if (cy0.a1 != 0.) nbz = aCube.quad_Y0->side[1]->NbPoints();
int i1, j1, nbxyz = nbx * nby * nbz;
Point3DStruct *np = new Point3DStruct[nbxyz];
// 1.9 - store node indexes of faces
{
const TopoDS_Face & F = TopoDS::Face(meshFaces[_indX0]->GetSubShape());
faceQuadStruct *quad = aCube.quad_X0;
int i = 0; // j = x/face , k = y/face
int nbdown = quad->side[0]->NbPoints();
int nbright = quad->side[1]->NbPoints();
SMDS_NodeIteratorPtr itf= aMesh.GetSubMesh(F)->GetSubMeshDS()->GetNodes();
while(itf->more()) {
const SMDS_MeshNode * node = itf->next();
if(aTool.IsMedium(node))
continue;
if ( !findIJ( node, quad, i1, j1 ))
return ClearAndReturn( aQuads, false );
int ij1 = j1 * nbdown + i1;
quad->uv_grid[ij1].node = node;
}
for (int i1 = 0; i1 < nbdown; i1++)
for (int j1 = 0; j1 < nbright; j1++) {
int ij1 = j1 * nbdown + i1;
int j = cx0.ia * i1 + cx0.ib * j1 + cx0.ic; // j = x/face
int k = cx0.ja * i1 + cx0.jb * j1 + cx0.jc; // k = y/face
int ijk = k * nbx * nby + j * nbx + i;
//MESSAGE(" "<<ij1<<" "<<i<<" "<<j<<" "<<ijk);
np[ijk].node = quad->uv_grid[ij1].node;
//SCRUTE(np[ijk].nodeId);
}
}
{
const TopoDS_Face & F = TopoDS::Face(meshFaces[_indX1]->GetSubShape());
SMDS_NodeIteratorPtr itf= aMesh.GetSubMesh(F)->GetSubMeshDS()->GetNodes();
faceQuadStruct *quad = aCube.quad_X1;
int i = nbx - 1; // j = x/face , k = y/face
int nbdown = quad->side[0]->NbPoints();
int nbright = quad->side[1]->NbPoints();
while(itf->more()) {
const SMDS_MeshNode * node = itf->next();
if(aTool.IsMedium(node))
continue;
if ( !findIJ( node, quad, i1, j1 ))
return ClearAndReturn( aQuads, false );
int ij1 = j1 * nbdown + i1;
quad->uv_grid[ij1].node = node;
}
for (int i1 = 0; i1 < nbdown; i1++)
for (int j1 = 0; j1 < nbright; j1++) {
int ij1 = j1 * nbdown + i1;
int j = cx1.ia * i1 + cx1.ib * j1 + cx1.ic; // j = x/face
int k = cx1.ja * i1 + cx1.jb * j1 + cx1.jc; // k = y/face
int ijk = k * nbx * nby + j * nbx + i;
//MESSAGE(" "<<ij1<<" "<<i<<" "<<j<<" "<<ijk);
np[ijk].node = quad->uv_grid[ij1].node;
//SCRUTE(np[ijk].nodeId);
}
}
{
const TopoDS_Face & F = TopoDS::Face(meshFaces[_indY0]->GetSubShape());
SMDS_NodeIteratorPtr itf= aMesh.GetSubMesh(F)->GetSubMeshDS()->GetNodes();
faceQuadStruct *quad = aCube.quad_Y0;
int j = 0; // i = x/face , k = y/face
int nbdown = quad->side[0]->NbPoints();
int nbright = quad->side[1]->NbPoints();
while(itf->more()) {
const SMDS_MeshNode * node = itf->next();
if(aTool.IsMedium(node))
continue;
if ( !findIJ( node, quad, i1, j1 ))
return ClearAndReturn( aQuads, false );
int ij1 = j1 * nbdown + i1;
quad->uv_grid[ij1].node = node;
}
for (int i1 = 0; i1 < nbdown; i1++)
for (int j1 = 0; j1 < nbright; j1++) {
int ij1 = j1 * nbdown + i1;
int i = cy0.ia * i1 + cy0.ib * j1 + cy0.ic; // i = x/face
int k = cy0.ja * i1 + cy0.jb * j1 + cy0.jc; // k = y/face
int ijk = k * nbx * nby + j * nbx + i;
//MESSAGE(" "<<ij1<<" "<<i<<" "<<j<<" "<<ijk);
np[ijk].node = quad->uv_grid[ij1].node;
//SCRUTE(np[ijk].nodeId);
}
}
{
const TopoDS_Face & F = TopoDS::Face(meshFaces[_indY1]->GetSubShape());
SMDS_NodeIteratorPtr itf= aMesh.GetSubMesh(F)->GetSubMeshDS()->GetNodes();
faceQuadStruct *quad = aCube.quad_Y1;
int j = nby - 1; // i = x/face , k = y/face
int nbdown = quad->side[0]->NbPoints();
int nbright = quad->side[1]->NbPoints();
while(itf->more()) {
const SMDS_MeshNode * node = itf->next();
if(aTool.IsMedium(node))
continue;
if ( !findIJ( node, quad, i1, j1 ))
return ClearAndReturn( aQuads, false );
int ij1 = j1 * nbdown + i1;
quad->uv_grid[ij1].node = node;
}
for (int i1 = 0; i1 < nbdown; i1++)
for (int j1 = 0; j1 < nbright; j1++) {
int ij1 = j1 * nbdown + i1;
int i = cy1.ia * i1 + cy1.ib * j1 + cy1.ic; // i = x/face
int k = cy1.ja * i1 + cy1.jb * j1 + cy1.jc; // k = y/face
int ijk = k * nbx * nby + j * nbx + i;
//MESSAGE(" "<<ij1<<" "<<i<<" "<<j<<" "<<ijk);
np[ijk].node = quad->uv_grid[ij1].node;
//SCRUTE(np[ijk].nodeId);
}
}
{
const TopoDS_Face & F = TopoDS::Face(meshFaces[_indZ0]->GetSubShape());
SMDS_NodeIteratorPtr itf= aMesh.GetSubMesh(F)->GetSubMeshDS()->GetNodes();
faceQuadStruct *quad = aCube.quad_Z0;
int k = 0; // i = x/face , j = y/face
int nbdown = quad->side[0]->NbPoints();
int nbright = quad->side[1]->NbPoints();
while(itf->more()) {
const SMDS_MeshNode * node = itf->next();
if(aTool.IsMedium(node))
continue;
if ( !findIJ( node, quad, i1, j1 ))
return ClearAndReturn( aQuads, false );
int ij1 = j1 * nbdown + i1;
quad->uv_grid[ij1].node = node;
}
for (int i1 = 0; i1 < nbdown; i1++)
for (int j1 = 0; j1 < nbright; j1++) {
int ij1 = j1 * nbdown + i1;
int i = cz0.ia * i1 + cz0.ib * j1 + cz0.ic; // i = x/face
int j = cz0.ja * i1 + cz0.jb * j1 + cz0.jc; // j = y/face
int ijk = k * nbx * nby + j * nbx + i;
//MESSAGE(" "<<ij1<<" "<<i<<" "<<j<<" "<<ijk);
np[ijk].node = quad->uv_grid[ij1].node;
//SCRUTE(np[ijk].nodeId);
}
}
{
const TopoDS_Face & F = TopoDS::Face(meshFaces[_indZ1]->GetSubShape());
SMDS_NodeIteratorPtr itf= aMesh.GetSubMesh(F)->GetSubMeshDS()->GetNodes();
faceQuadStruct *quad = aCube.quad_Z1;
int k = nbz - 1; // i = x/face , j = y/face
int nbdown = quad->side[0]->NbPoints();
int nbright = quad->side[1]->NbPoints();
while(itf->more()) {
const SMDS_MeshNode * node = itf->next();
if(aTool.IsMedium(node))
continue;
if ( !findIJ( node, quad, i1, j1 ))
return ClearAndReturn( aQuads, false );
int ij1 = j1 * nbdown + i1;
quad->uv_grid[ij1].node = node;
}
for (int i1 = 0; i1 < nbdown; i1++)
for (int j1 = 0; j1 < nbright; j1++) {
int ij1 = j1 * nbdown + i1;
int i = cz1.ia * i1 + cz1.ib * j1 + cz1.ic; // i = x/face
int j = cz1.ja * i1 + cz1.jb * j1 + cz1.jc; // j = y/face
int ijk = k * nbx * nby + j * nbx + i;
//MESSAGE(" "<<ij1<<" "<<i<<" "<<j<<" "<<ijk);
np[ijk].node = quad->uv_grid[ij1].node;
//SCRUTE(np[ijk].nodeId);
}
}
// 2.0 - for each node of the cube:
// - get the 8 points 3D = 8 vertices of the cube
// - get the 12 points 3D on the 12 edges of the cube
// - get the 6 points 3D on the 6 faces with their ID
// - compute the point 3D
// - store the point 3D in SMESHDS, store its ID in 3D structure
int shapeID = meshDS->ShapeToIndex( aShape );
Pt3 p000, p001, p010, p011, p100, p101, p110, p111;
Pt3 px00, px01, px10, px11;
Pt3 p0y0, p0y1, p1y0, p1y1;
Pt3 p00z, p01z, p10z, p11z;
Pt3 pxy0, pxy1, px0z, px1z, p0yz, p1yz;
GetPoint(p000, 0, 0, 0, nbx, nby, nbz, np, meshDS);
GetPoint(p001, 0, 0, nbz - 1, nbx, nby, nbz, np, meshDS);
GetPoint(p010, 0, nby - 1, 0, nbx, nby, nbz, np, meshDS);
GetPoint(p011, 0, nby - 1, nbz - 1, nbx, nby, nbz, np, meshDS);
GetPoint(p100, nbx - 1, 0, 0, nbx, nby, nbz, np, meshDS);
GetPoint(p101, nbx - 1, 0, nbz - 1, nbx, nby, nbz, np, meshDS);
GetPoint(p110, nbx - 1, nby - 1, 0, nbx, nby, nbz, np, meshDS);
GetPoint(p111, nbx - 1, nby - 1, nbz - 1, nbx, nby, nbz, np, meshDS);
for (int i = 1; i < nbx - 1; i++) {
for (int j = 1; j < nby - 1; j++) {
for (int k = 1; k < nbz - 1; k++) {
// *** seulement maillage regulier
// 12 points on edges
GetPoint(px00, i, 0, 0, nbx, nby, nbz, np, meshDS);
GetPoint(px01, i, 0, nbz - 1, nbx, nby, nbz, np, meshDS);
GetPoint(px10, i, nby - 1, 0, nbx, nby, nbz, np, meshDS);
GetPoint(px11, i, nby - 1, nbz - 1, nbx, nby, nbz, np, meshDS);
GetPoint(p0y0, 0, j, 0, nbx, nby, nbz, np, meshDS);
GetPoint(p0y1, 0, j, nbz - 1, nbx, nby, nbz, np, meshDS);
GetPoint(p1y0, nbx - 1, j, 0, nbx, nby, nbz, np, meshDS);
GetPoint(p1y1, nbx - 1, j, nbz - 1, nbx, nby, nbz, np, meshDS);
GetPoint(p00z, 0, 0, k, nbx, nby, nbz, np, meshDS);
GetPoint(p01z, 0, nby - 1, k, nbx, nby, nbz, np, meshDS);
GetPoint(p10z, nbx - 1, 0, k, nbx, nby, nbz, np, meshDS);
GetPoint(p11z, nbx - 1, nby - 1, k, nbx, nby, nbz, np, meshDS);
// 12 points on faces
GetPoint(pxy0, i, j, 0, nbx, nby, nbz, np, meshDS);
GetPoint(pxy1, i, j, nbz - 1, nbx, nby, nbz, np, meshDS);
GetPoint(px0z, i, 0, k, nbx, nby, nbz, np, meshDS);
GetPoint(px1z, i, nby - 1, k, nbx, nby, nbz, np, meshDS);
GetPoint(p0yz, 0, j, k, nbx, nby, nbz, np, meshDS);
GetPoint(p1yz, nbx - 1, j, k, nbx, nby, nbz, np, meshDS);
int ijk = k * nbx * nby + j * nbx + i;
double x = double (i) / double (nbx - 1); // *** seulement
double y = double (j) / double (nby - 1); // *** maillage
double z = double (k) / double (nbz - 1); // *** regulier
Pt3 X;
for (int i = 0; i < 3; i++) {
X[i] = (1 - x) * p0yz[i] + x * p1yz[i]
+ (1 - y) * px0z[i] + y * px1z[i]
+ (1 - z) * pxy0[i] + z * pxy1[i]
- (1 - x) * ((1 - y) * p00z[i] + y * p01z[i])
- x * ((1 - y) * p10z[i] + y * p11z[i])
- (1 - y) * ((1 - z) * px00[i] + z * px01[i])
- y * ((1 - z) * px10[i] + z * px11[i])
- (1 - z) * ((1 - x) * p0y0[i] + x * p1y0[i])
- z * ((1 - x) * p0y1[i] + x * p1y1[i])
+ (1 - x) * ((1 - y) * ((1 - z) * p000[i] + z * p001[i])
+ y * ((1 - z) * p010[i] + z * p011[i]))
+ x * ((1 - y) * ((1 - z) * p100[i] + z * p101[i])
+ y * ((1 - z) * p110[i] + z * p111[i]));
}
SMDS_MeshNode * node = meshDS->AddNode(X[0], X[1], X[2]);
np[ijk].node = node;
meshDS->SetNodeInVolume(node, shapeID);
}
}
}
// find orientation of furute volumes according to MED convention
vector< bool > forward( nbx * nby );
SMDS_VolumeTool vTool;
for (int i = 0; i < nbx - 1; i++) {
for (int j = 0; j < nby - 1; j++) {
int n1 = j * nbx + i;
int n2 = j * nbx + i + 1;
int n3 = (j + 1) * nbx + i + 1;
int n4 = (j + 1) * nbx + i;
int n5 = nbx * nby + j * nbx + i;
int n6 = nbx * nby + j * nbx + i + 1;
int n7 = nbx * nby + (j + 1) * nbx + i + 1;
int n8 = nbx * nby + (j + 1) * nbx + i;
SMDS_VolumeOfNodes tmpVol (np[n1].node,np[n2].node,np[n3].node,np[n4].node,
np[n5].node,np[n6].node,np[n7].node,np[n8].node);
vTool.Set( &tmpVol );
forward[ n1 ] = vTool.IsForward();
}
}
//2.1 - for each node of the cube (less 3 *1 Faces):
// - store hexahedron in SMESHDS
MESSAGE("Storing hexahedron into the DS");
for (int i = 0; i < nbx - 1; i++) {
for (int j = 0; j < nby - 1; j++) {
bool isForw = forward.at( j * nbx + i );
for (int k = 0; k < nbz - 1; k++) {
int n1 = k * nbx * nby + j * nbx + i;
int n2 = k * nbx * nby + j * nbx + i + 1;
int n3 = k * nbx * nby + (j + 1) * nbx + i + 1;
int n4 = k * nbx * nby + (j + 1) * nbx + i;
int n5 = (k + 1) * nbx * nby + j * nbx + i;
int n6 = (k + 1) * nbx * nby + j * nbx + i + 1;
int n7 = (k + 1) * nbx * nby + (j + 1) * nbx + i + 1;
int n8 = (k + 1) * nbx * nby + (j + 1) * nbx + i;
SMDS_MeshVolume * elt;
if ( isForw ) {
elt = aTool.AddVolume(np[n1].node, np[n2].node,
np[n3].node, np[n4].node,
np[n5].node, np[n6].node,
np[n7].node, np[n8].node);
}
else {
elt = aTool.AddVolume(np[n1].node, np[n4].node,
np[n3].node, np[n2].node,
np[n5].node, np[n8].node,
np[n7].node, np[n6].node);
}
meshDS->SetMeshElementOnShape(elt, shapeID);
}
}
}
if ( np ) delete [] np;
return ClearAndReturn( aQuads, true );
}
