void Meshing2 :: BlockFillLocalH (Mesh & mesh, const MeshingParameters & mp)
{
double filldist = mp.filldist;
cout << "blockfill local h" << endl;
cout << "rel filldist = " << filldist << endl;
PrintMessage (3, "blockfill local h");
Array<Point<3> > npoints;
// adfront -> CreateTrees();
Box<3> bbox ( Box<3>::EMPTY_BOX );
double maxh = 0;
for (int i = 0; i < adfront->GetNFL(); i++)
{
const FrontLine & line = adfront->GetLine (i);
const Point<3> & p1 = adfront->GetPoint(line.L().I1());
const Point<3> & p2 = adfront->GetPoint(line.L().I2());
double hi = Dist (p1, p2);
if (hi > maxh) maxh = hi;
bbox.Add (p1);
bbox.Add (p2);
}
cout << "bbox = " << bbox << endl;
// Point<3> mpc = bbox.Center();
bbox.Increase (bbox.Diam()/2);
Box<3> meshbox = bbox;
LocalH loch2 (bbox, 1);
if (mp.maxh < maxh) maxh = mp.maxh;
bool changed;
do
{
mesh.LocalHFunction().ClearFlags();
for (int i = 0; i < adfront->GetNFL(); i++)
{
const FrontLine & line = adfront->GetLine(i);
Box<3> bbox (adfront->GetPoint (line.L().I1()));
bbox.Add (adfront->GetPoint (line.L().I2()));
double filld = filldist * bbox.Diam();
bbox.Increase (filld);
mesh.LocalHFunction().CutBoundary (bbox);
}
mesh.LocalHFunction().FindInnerBoxes (adfront, NULL);
npoints.SetSize(0);
mesh.LocalHFunction().GetInnerPoints (npoints);
changed = false;
for (int i = 0; i < npoints.Size(); i++)
{
if (mesh.LocalHFunction().GetH(npoints[i]) > 1.5 * maxh)
{
mesh.LocalHFunction().SetH (npoints[i], maxh);
changed = true;
}
}
}
while (changed);
if (debugparam.slowchecks)
(*testout) << "Blockfill with points: " << endl;
*testout << "loch = " << mesh.LocalHFunction() << endl;
*testout << "npoints = " << endl << npoints << endl;
for (int i = 1; i <= npoints.Size(); i++)
{
if (meshbox.IsIn (npoints.Get(i)))
{
PointIndex gpnum = mesh.AddPoint (npoints.Get(i));
adfront->AddPoint (npoints.Get(i), gpnum);
if (debugparam.slowchecks)
{
(*testout) << npoints.Get(i) << endl;
Point<2> p2d (npoints.Get(i)(0), npoints.Get(i)(1));
if (!adfront->Inside(p2d))
{
cout << "add outside point" << endl;
(*testout) << "outside" << endl;
}
}
}
}
// find outer points
loch2.ClearFlags();
for (int i = 0; i < adfront->GetNFL(); i++)
{
const FrontLine & line = adfront->GetLine(i);
Box<3> bbox (adfront->GetPoint (line.L().I1()));
bbox.Add (adfront->GetPoint (line.L().I2()));
loch2.SetH (bbox.Center(), bbox.Diam());
}
for (int i = 0; i < adfront->GetNFL(); i++)
{
const FrontLine & line = adfront->GetLine(i);
Box<3> bbox (adfront->GetPoint (line.L().I1()));
bbox.Add (adfront->GetPoint (line.L().I2()));
bbox.Increase (filldist * bbox.Diam());
loch2.CutBoundary (bbox);
}
loch2.FindInnerBoxes (adfront, NULL);
npoints.SetSize(0);
loch2.GetOuterPoints (npoints);
for (int i = 1; i <= npoints.Size(); i++)
{
if (meshbox.IsIn (npoints.Get(i)))
{
PointIndex gpnum = mesh.AddPoint (npoints.Get(i));
adfront->AddPoint (npoints.Get(i), gpnum);
}
}
}
void VisualSceneGeometry :: BuildScene (int zoomall)
{
VisualScene::BuildScene(zoomall); // setting light ...
Box<3> box;
int hasp = 0;
for (int i = 0; i < geometry->GetNTopLevelObjects(); i++)
{
const TriangleApproximation & ta =
*geometry->GetTriApprox(i);
if (!&ta) continue;
for (int j = 0; j < ta.GetNP(); j++)
{
if (hasp)
box.Add (ta.GetPoint(j));
else
{
hasp = 1;
box.Set (ta.GetPoint(j));
}
}
}
if (hasp)
{
center = box.Center();
rad = box.Diam() / 2;
}
else
{
center = Point3d(0,0,0);
rad = 1;
}
CalcTransformationMatrices();
for (int i = 0; i < trilists.Size(); i++)
glDeleteLists (trilists[i], 1);
trilists.SetSize(0);
for (int i = 0; i < geometry->GetNTopLevelObjects(); i++)
{
trilists.Append (glGenLists (1));
glNewList (trilists.Last(), GL_COMPILE);
glEnable (GL_NORMALIZE);
const TriangleApproximation & ta =
*geometry->GetTriApprox(i);
if (&ta)
{
glEnableClientState(GL_VERTEX_ARRAY);
glVertexPointer(3, GL_DOUBLE, 0, &ta.GetPoint(0)(0));
glEnableClientState(GL_NORMAL_ARRAY);
glNormalPointer(GL_DOUBLE, 0, &ta.GetNormal(0)(0));
for (int j = 0; j < ta.GetNT(); j++)
glDrawElements(GL_TRIANGLES, 3, GL_UNSIGNED_INT, & (ta.GetTriangle(j)[0]));
glDisableClientState(GL_VERTEX_ARRAY);
glDisableClientState(GL_NORMAL_ARRAY);
/*
for (int j = 0; j < ta.GetNT(); j++)
{
glBegin (GL_TRIANGLES);
for (int k = 0; k < 3; k++)
{
int pi = ta.GetTriangle(j)[k];
glNormal3dv (ta.GetNormal(pi));
glVertex3dv (ta.GetPoint(pi));
cout << "v = " << ta.GetPoint(pi) << endl;
}
glEnd ();
}
*/
}
glEndList ();
}
}
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;
}
void MeshFromSpline2D (SplineGeometry2d & geometry,
Mesh *& mesh,
MeshingParameters & mp)
{
PrintMessage (1, "Generate Mesh from spline geometry");
double h = mp.maxh;
Box<2> bbox = geometry.GetBoundingBox ();
if (bbox.Diam() < h)
{
h = bbox.Diam();
mp.maxh = h;
}
mesh = new Mesh;
mesh->SetDimension (2);
geometry.PartitionBoundary (h, *mesh);
// marks mesh points for hp-refinement
for (int i = 0; i < geometry.GetNP(); i++)
if (geometry.GetPoint(i).hpref)
{
double mindist = 1e99;
PointIndex mpi(0);
Point<2> gp = geometry.GetPoint(i);
Point<3> gp3(gp(0), gp(1), 0);
for (PointIndex pi = PointIndex::BASE;
pi < mesh->GetNP()+PointIndex::BASE; pi++)
if (Dist2(gp3, (*mesh)[pi]) < mindist)
{
mpi = pi;
mindist = Dist2(gp3, (*mesh)[pi]);
}
(*mesh)[mpi].Singularity(1.);
}
int maxdomnr = 0;
for (SegmentIndex si = 0; si < mesh->GetNSeg(); si++)
{
if ( (*mesh)[si].domin > maxdomnr) maxdomnr = (*mesh)[si].domin;
if ( (*mesh)[si].domout > maxdomnr) maxdomnr = (*mesh)[si].domout;
}
mesh->ClearFaceDescriptors();
for (int i = 1; i <= maxdomnr; i++)
mesh->AddFaceDescriptor (FaceDescriptor (i, 0, 0, i));
// set Array<string*> bcnames...
// number of bcnames
int maxsegmentindex = 0;
for (SegmentIndex si = 0; si < mesh->GetNSeg(); si++)
{
if ( (*mesh)[si].si > maxsegmentindex) maxsegmentindex = (*mesh)[si].si;
}
mesh->SetNBCNames(maxsegmentindex);
for ( int sindex = 0; sindex < maxsegmentindex; sindex++ )
mesh->SetBCName ( sindex, geometry.GetBCName( sindex+1 ) );
for (SegmentIndex si = 0; si < mesh->GetNSeg(); si++)
(*mesh)[si].SetBCName ( (*mesh).GetBCNamePtr( (*mesh)[si].si-1 ) );
Point3d pmin(bbox.PMin()(0), bbox.PMin()(1), -bbox.Diam());
Point3d pmax(bbox.PMax()(0), bbox.PMax()(1), bbox.Diam());
mesh->SetLocalH (pmin, pmax, mparam.grading);
mesh->SetGlobalH (h);
mesh->CalcLocalH();
int bnp = mesh->GetNP(); // boundary points
int hquad = mparam.quad;
for (int domnr = 1; domnr <= maxdomnr; domnr++)
if (geometry.GetDomainTensorMeshing (domnr))
{ // tensor product mesh
Array<PointIndex, PointIndex::BASE> nextpi(bnp);
Array<int, PointIndex::BASE> si1(bnp), si2(bnp);
PointIndex firstpi;
nextpi = -1;
si1 = -1;
si2 = -1;
for (SegmentIndex si = 0; si < mesh->GetNSeg(); si++)
{
int p1 = -1, p2 = -2;
if ( (*mesh)[si].domin == domnr)
{ p1 = (*mesh)[si][0]; p2 = (*mesh)[si][1]; }
if ( (*mesh)[si].domout == domnr)
{ p1 = (*mesh)[si][1]; p2 = (*mesh)[si][0]; }
if (p1 == -1) continue;
nextpi[p1] = p2; // counter-clockwise
int index = (*mesh)[si].si;
if (si1[p1] != index && si2[p1] != index)
{ si2[p1] = si1[p1]; si1[p1] = index; }
if (si1[p2] != index && si2[p2] != index)
{ si2[p2] = si1[p2]; si1[p2] = index; }
}
PointIndex c1(0), c2, c3, c4; // 4 corner points
int nex = 1, ney = 1;
for (PointIndex pi = 1; pi <= si2.Size(); pi++)
if (si2[pi] != -1)
{ c1 = pi; break; }
for (c2 = nextpi[c1]; si2[c2] == -1; c2 = nextpi[c2], nex++);
for (c3 = nextpi[c2]; si2[c3] == -1; c3 = nextpi[c3], ney++);
for (c4 = nextpi[c3]; si2[c4] == -1; c4 = nextpi[c4]);
Array<PointIndex> pts ( (nex+1) * (ney+1) ); // x ... inner loop
pts = -1;
for (PointIndex pi = c1, i = 0; pi != c2; pi = nextpi[pi], i++)
pts[i] = pi;
for (PointIndex pi = c2, i = 0; pi != c3; pi = nextpi[pi], i++)
pts[(nex+1)*i+nex] = pi;
for (PointIndex pi = c3, i = 0; pi != c4; pi = nextpi[pi], i++)
pts[(nex+1)*(ney+1)-i-1] = pi;
for (PointIndex pi = c4, i = 0; pi != c1; pi = nextpi[pi], i++)
pts[(nex+1)*(ney-i)] = pi;
for (PointIndex pix = nextpi[c1], ix = 0; pix != c2; pix = nextpi[pix], ix++)
for (PointIndex piy = nextpi[c2], iy = 0; piy != c3; piy = nextpi[piy], iy++)
{
Point<3> p = (*mesh)[pix] + ( (*mesh)[piy] - (*mesh)[c2] );
pts[(nex+1)*(iy+1) + ix+1] = mesh -> AddPoint (p , 1, FIXEDPOINT);
}
for (int i = 0; i < ney; i++)
for (int j = 0; j < nex; j++)
{
Element2d el(QUAD);
el[0] = pts[i*(nex+1)+j];
el[1] = pts[i*(nex+1)+j+1];
el[2] = pts[(i+1)*(nex+1)+j+1];
el[3] = pts[(i+1)*(nex+1)+j];
el.SetIndex (domnr);
mesh -> AddSurfaceElement (el);
}
}
for (int domnr = 1; domnr <= maxdomnr; domnr++)
{
if (geometry.GetDomainTensorMeshing (domnr)) continue;
if ( geometry.GetDomainMaxh ( domnr ) > 0 )
h = geometry.GetDomainMaxh(domnr);
PrintMessage (3, "Meshing domain ", domnr, " / ", maxdomnr);
int oldnf = mesh->GetNSE();
mparam.quad = hquad || geometry.GetDomainQuadMeshing (domnr);
Meshing2 meshing (Box<3> (pmin, pmax));
for (PointIndex pi = PointIndex::BASE; pi < bnp+PointIndex::BASE; pi++)
meshing.AddPoint ( (*mesh)[pi], pi);
PointGeomInfo gi;
gi.trignum = 1;
for (SegmentIndex si = 0; si < mesh->GetNSeg(); si++)
{
if ( (*mesh)[si].domin == domnr)
meshing.AddBoundaryElement ( (*mesh)[si][0] + 1 - PointIndex::BASE,
(*mesh)[si][1] + 1 - PointIndex::BASE, gi, gi);
if ( (*mesh)[si].domout == domnr)
meshing.AddBoundaryElement ( (*mesh)[si][1] + 1 - PointIndex::BASE,
(*mesh)[si][0] + 1 - PointIndex::BASE, gi, gi);
}
mparam.checkoverlap = 0;
meshing.GenerateMesh (*mesh, h, domnr);
for (SurfaceElementIndex sei = oldnf; sei < mesh->GetNSE(); sei++)
(*mesh)[sei].SetIndex (domnr);
// astrid
char * material;
geometry.GetMaterial( domnr, material );
if ( material )
{
(*mesh).SetMaterial ( domnr, material );
}
}
mparam.quad = hquad;
int hsteps = mp.optsteps2d;
mp.optimize2d = "smcm";
mp.optsteps2d = hsteps/2;
Optimize2d (*mesh, mp);
mp.optimize2d = "Smcm";
mp.optsteps2d = (hsteps+1)/2;
Optimize2d (*mesh, mp);
mp.optsteps2d = hsteps;
mesh->Compress();
mesh -> SetNextMajorTimeStamp();
extern void Render();
Render();
}
/*
double stlgh;
double GetH(const Point3d& p, double x)
{
return stlgh;//+0.5)*(x+0.5);
}
*/
STLLine* STLLine :: Mesh(const Array<Point<3> >& ap,
Array<Point3d>& mp, double ghi,
class Mesh& mesh) const
{
static int timer1a = NgProfiler::CreateTimer ("mesh stl-line 1a");
static int timer1b = NgProfiler::CreateTimer ("mesh stl-line 1b");
static int timer2 = NgProfiler::CreateTimer ("mesh stl-line 2");
static int timer3 = NgProfiler::CreateTimer ("mesh stl-line 3");
NgProfiler::StartTimer (timer1a);
STLLine* line = new STLLine(geometry);
//stlgh = ghi; //uebergangsloesung!!!!
double len = GetLength(ap);
double inthl = 0; //integral of 1/h
double dist = 0;
double h;
int ind;
Point3d p;
Box<3> bbox;
GetBoundingBox (ap, bbox);
double diam = bbox.Diam();
double minh = mesh.LocalHFunction().GetMinH (bbox.PMin(), bbox.PMax());
double maxseglen = 0;
for (int i = 1; i <= GetNS(); i++)
maxseglen = max2 (maxseglen, GetSegLen (ap, i));
int nph = 10+int(maxseglen / minh); //anzahl der integralauswertungen pro segment
Array<double> inthi(GetNS()*nph);
Array<double> curvelen(GetNS()*nph);
NgProfiler::StopTimer (timer1a);
NgProfiler::StartTimer (timer1b);
for (int i = 1; i <= GetNS(); i++)
{
//double seglen = GetSegLen(ap,i);
for (int j = 1; j <= nph; j++)
{
p = GetPointInDist(ap,dist,ind);
//h = GetH(p,dist/len);
h = mesh.GetH(p);
dist += GetSegLen(ap,i)/(double)nph;
inthl += GetSegLen(ap,i)/nph/(h);
inthi.Elem((i-1)*nph+j) = GetSegLen(ap,i)/nph/h;
curvelen.Elem((i-1)*nph+j) = GetSegLen(ap,i)/nph;
}
}
int inthlint = int(inthl+1);
if ( (inthlint < 3) && (StartP() == EndP()))
{
inthlint = 3;
}
if ( (inthlint == 1) && ShouldSplit())
{
inthlint = 2;
}
double fact = inthl/(double)inthlint;
dist = 0;
int j = 1;
p = ap.Get(StartP());
int pn = AddPointIfNotExists(mp, p, 1e-10*diam);
int segn = 1;
line->AddPoint(pn);
line->AddLeftTrig(GetLeftTrig(segn));
line->AddRightTrig(GetRightTrig(segn));
line->AddDist(dist);
NgProfiler::StopTimer (timer1b);
NgProfiler::StartTimer (timer2);
inthl = 0; //restart each meshseg
for (int i = 1; i <= inthlint; i++)
{
while (inthl < 1.000000001 && j <= inthi.Size())
{
inthl += inthi.Get(j)/fact;
dist += curvelen.Get(j);
j++;
}
//went too far:
j--;
double tofar = (inthl - 1)/inthi.Get(j);
inthl -= tofar*inthi.Get(j);
dist -= tofar*curvelen.Get(j)*fact;
if (i == inthlint && fabs(dist - len) >= 1E-8)
{
PrintSysError("meshline failed!!!");
}
if (i != inthlint)
{
p = GetPointInDist(ap,dist,ind);
pn = AddPointIfNotExists(mp, p, 1e-10*diam);
segn = ind;
line->AddPoint(pn);
line->AddLeftTrig(GetLeftTrig(segn));
line->AddRightTrig(GetRightTrig(segn));
line->AddDist(dist);
}
inthl = tofar*inthi.Get(j);
dist += tofar*curvelen.Get(j)*fact;
j++;
}
NgProfiler::StopTimer (timer2);
NgProfiler::StartTimer (timer3);
p = ap.Get(EndP());
pn = AddPointIfNotExists(mp, p, 1e-10*diam);
segn = GetNS();
line->AddPoint(pn);
line->AddLeftTrig(GetLeftTrig(segn));
line->AddRightTrig(GetRightTrig(segn));
line->AddDist(dist);
for (int ii = 1; ii <= line->GetNS(); ii++)
{
int p1, p2;
line->GetSeg(ii,p1,p2);
}
/*
(*testout) << "line, " << ap.Get(StartP()) << "-" << ap.Get(EndP())
<< " len = " << Dist (ap.Get(StartP()), ap.Get(EndP())) << endl;
*/
NgProfiler::StopTimer (timer3);
return line;
}
