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8c6cf8ded4
netgen/libsrc/meshing/meshclass.cpp
Joachim Schoeberl 8c6cf8ded4 mesh has geometry-ptr
2015-08-26 13:56:06 +02:00

5672 lines
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#include <mystdlib.h>
#include "meshing.hpp"
namespace netgen
{
Mesh :: Mesh ()
: surfarea(*this)
{
// volelements.SetName ("vol elements");
// surfelements.SetName ("surf elements");
// points.SetName ("meshpoints");
boundaryedges = NULL;
surfelementht = NULL;
segmentht = NULL;
lochfunc = NULL;
mglevels = 1;
elementsearchtree = NULL;
elementsearchtreets = NextTimeStamp();
majortimestamp = timestamp = NextTimeStamp();
hglob = 1e10;
hmin = 0;
numvertices = -1;
dimension = 3;
topology = new MeshTopology (*this);
curvedelems = new CurvedElements (*this);
clusters = new AnisotropicClusters (*this);
ident = new Identifications (*this);
hpelements = NULL;
coarsemesh = NULL;
ps_startelement = 0;
geomtype = NO_GEOM;
bcnames.SetSize(0);
#ifdef PARALLEL
paralleltop = new ParallelMeshTopology (*this);
#endif
}
Mesh :: ~Mesh()
{
// cout << "******************** deleting Mesh **********" << endl;
delete lochfunc;
delete boundaryedges;
delete surfelementht;
delete segmentht;
delete curvedelems;
delete clusters;
delete topology;
delete ident;
delete elementsearchtree;
delete coarsemesh;
delete hpelements;
for (int i = 0; i < materials.Size(); i++)
delete [] materials[i];
for(int i = 0; i < userdata_int.Size(); i++)
delete userdata_int[i];
for(int i = 0; i < userdata_double.Size(); i++)
delete userdata_double[i];
for (int i = 0; i < bcnames.Size(); i++ )
if ( bcnames[i] ) delete bcnames[i];
#ifdef PARALLEL
delete paralleltop;
#endif
}
Mesh & Mesh :: operator= (const Mesh & mesh2)
{
points = mesh2.points;
// eltyps = mesh2.eltyps;
segments = mesh2.segments;
surfelements = mesh2.surfelements;
volelements = mesh2.volelements;
lockedpoints = mesh2.lockedpoints;
facedecoding = mesh2.facedecoding;
dimension = mesh2.dimension;
bcnames.SetSize( mesh2.bcnames.Size() );
for ( int i = 0; i < mesh2.bcnames.Size(); i++ )
if ( mesh2.bcnames[i] ) bcnames[i] = new string ( *mesh2.bcnames[i] );
else bcnames[i] = 0;
return *this;
}
void Mesh :: DeleteMesh()
{
NgLock lock(mutex);
lock.Lock();
points.SetSize(0);
segments.SetSize(0);
surfelements.SetSize(0);
volelements.SetSize(0);
lockedpoints.SetSize(0);
surfacesonnode.SetSize(0);
delete boundaryedges;
boundaryedges = NULL;
openelements.SetSize(0);
facedecoding.SetSize(0);
delete ident;
ident = new Identifications (*this);
delete topology;
topology = new MeshTopology (*this);
delete curvedelems;
curvedelems = new CurvedElements (*this);
delete clusters;
clusters = new AnisotropicClusters (*this);
for ( int i = 0; i < bcnames.Size(); i++ )
if ( bcnames[i] ) delete bcnames[i];
#ifdef PARALLEL
delete paralleltop;
paralleltop = new ParallelMeshTopology (*this);
#endif
lock.UnLock();
timestamp = NextTimeStamp();
}
void Mesh :: ClearSurfaceElements()
{
surfelements.SetSize(0);
for (int i = 0; i < facedecoding.Size(); i++)
facedecoding[i].firstelement = -1;
timestamp = NextTimeStamp();
}
PointIndex Mesh :: AddPoint (const Point3d & p, int layer)
{
return AddPoint (p, layer, INNERPOINT);
/*
NgLock lock(mutex);
lock.Lock();
timestamp = NextTimeStamp();
PointIndex pi = points.End();
points.Append ( MeshPoint (p, layer, INNERPOINT) );
lock.UnLock();
return pi;
*/
}
PointIndex Mesh :: AddPoint (const Point3d & p, int layer, POINTTYPE type)
{
NgLock lock(mutex);
lock.Lock();
timestamp = NextTimeStamp();
PointIndex pi = points.End();
points.Append ( MeshPoint (p, layer, type) );
lock.UnLock();
return pi;
}
/*
#ifdef PARALLEL
PointIndex Mesh :: AddPoint (const Point3d & p, bool isghost, int layer)
{
NgLock lock(mutex);
lock.Lock();
timestamp = NextTimeStamp();
PointIndex pi = points.Size() + PointIndex::BASE;
points.Append ( MeshPoint (p, layer, INNERPOINT) );
lock.UnLock();
return pi;
}
PointIndex Mesh :: AddPoint (const Point3d & p, bool isghost, int layer, POINTTYPE type)
{
NgLock lock(mutex);
lock.Lock();
timestamp = NextTimeStamp();
PointIndex pi = points.Size() + PointIndex::BASE;
points.Append ( MeshPoint (p, layer, type) );
lock.UnLock();
return pi;
}
#endif
*/
SegmentIndex Mesh :: AddSegment (const Segment & s)
{
NgLock lock(mutex);
lock.Lock();
timestamp = NextTimeStamp();
int maxn = max2 (s[0], s[1]);
maxn += 1-PointIndex::BASE;
/*
if (maxn > ptyps.Size())
{
int maxo = ptyps.Size();
ptyps.SetSize (maxn);
for (int i = maxo; i < maxn; i++)
ptyps[i] = INNERPOINT;
}
if (ptyps[s[0]] > EDGEPOINT) ptyps[s[0]] = EDGEPOINT;
if (ptyps[s[1]] > EDGEPOINT) ptyps[s[1]] = EDGEPOINT;
*/
if (maxn <= points.Size())
{
if (points[s[0]].Type() > EDGEPOINT)
points[s[0]].SetType (EDGEPOINT);
if (points[s[1]].Type() > EDGEPOINT)
points[s[1]].SetType (EDGEPOINT);
}
/*
else
{
cerr << "edge points nrs > points.Size" << endl;
}
*/
SegmentIndex si = segments.Size();
segments.Append (s);
lock.UnLock();
return si;
}
SurfaceElementIndex Mesh :: AddSurfaceElement (const Element2d & el)
{
NgLock lock(mutex);
lock.Lock();
timestamp = NextTimeStamp();
int maxn = el[0];
for (int i = 1; i < el.GetNP(); i++)
if (el[i] > maxn) maxn = el[i];
maxn += 1-PointIndex::BASE;
/*
if (maxn > ptyps.Size())
{
int maxo = ptyps.Size();
ptyps.SetSize (maxn);
for (i = maxo+PointIndex::BASE;
i < maxn+PointIndex::BASE; i++)
ptyps[i] = INNERPOINT;
}
*/
if (maxn <= points.Size())
{
for (int i = 0; i < el.GetNP(); i++)
if (points[el[i]].Type() > SURFACEPOINT)
points[el[i]].SetType(SURFACEPOINT);
}
/*
else
{
cerr << "surf points nrs > points.Size" << endl;
}
*/
SurfaceElementIndex si = surfelements.Size();
surfelements.Append (el);
if (el.index > facedecoding.Size())
cerr << "has no facedecoding: fd.size = " << facedecoding.Size() << ", ind = " << el.index << endl;
surfelements.Last().next = facedecoding[el.index-1].firstelement;
facedecoding[el.index-1].firstelement = si;
if (SurfaceArea().Valid())
SurfaceArea().Add (el);
lock.UnLock();
return si;
}
ElementIndex Mesh :: AddVolumeElement (const Element & el)
{
NgLock lock(mutex);
lock.Lock();
int maxn = el[0];
for (int i = 1; i < el.GetNP(); i++)
if (el[i] > maxn) maxn = el[i];
maxn += 1-PointIndex::BASE;
/*
if (maxn > ptyps.Size())
{
int maxo = ptyps.Size();
ptyps.SetSize (maxn);
for (i = maxo+PointIndex::BASE;
i < maxn+PointIndex::BASE; i++)
ptyps[i] = INNERPOINT;
}
*/
/*
if (maxn > points.Size())
{
cerr << "add vol element before point" << endl;
}
*/
int ve = volelements.Size();
volelements.Append (el);
volelements.Last().flags.illegal_valid = 0;
// while (volelements.Size() > eltyps.Size())
// eltyps.Append (FREEELEMENT);
timestamp = NextTimeStamp();
lock.UnLock();
return ve;
}
void Mesh :: Save (const string & filename) const
{
ofstream outfile(filename.c_str());
// ogzstream outfile( (filename+".gz") .c_str());
Save(outfile);
}
void Mesh :: Save (ostream & outfile) const
{
int i, j;
double scale = 1; // globflags.GetNumFlag ("scale", 1);
int inverttets = 0; // globflags.GetDefineFlag ("inverttets");
int invertsurf = 0; // globflags.GetDefineFlag ("invertsurfacemesh");
outfile << "mesh3d" << "\n";
outfile << "dimension\n" << GetDimension() << "\n";
outfile << "geomtype\n" << int(geomtype) << "\n";
outfile << "\n";
outfile << "# surfnr bcnr domin domout np p1 p2 p3"
<< "\n";
switch (geomtype)
{
case GEOM_STL:
outfile << "surfaceelementsgi" << "\n";
break;
case GEOM_OCC: case GEOM_ACIS:
outfile << "surfaceelementsuv" << "\n";
break;
default:
outfile << "surfaceelements" << "\n";
}
outfile << GetNSE() << "\n";
SurfaceElementIndex sei;
for (sei = 0; sei < GetNSE(); sei++)
{
if ((*this)[sei].GetIndex())
{
outfile << " " << GetFaceDescriptor((*this)[sei].GetIndex ()).SurfNr()+1;
outfile << " " << GetFaceDescriptor((*this)[sei].GetIndex ()).BCProperty();
outfile << " " << GetFaceDescriptor((*this)[sei].GetIndex ()).DomainIn();
outfile << " " << GetFaceDescriptor((*this)[sei].GetIndex ()).DomainOut();
}
else
outfile << " 0 0 0";
Element2d sel = (*this)[sei];
if (invertsurf)
sel.Invert();
outfile << " " << sel.GetNP();
for (j = 0; j < sel.GetNP(); j++)
outfile << " " << sel[j];
switch (geomtype)
{
case GEOM_STL:
for (j = 1; j <= sel.GetNP(); j++)
outfile << " " << sel.GeomInfoPi(j).trignum;
break;
case GEOM_OCC: case GEOM_ACIS:
for (j = 1; j <= sel.GetNP(); j++)
{
outfile << " " << sel.GeomInfoPi(j).u;
outfile << " " << sel.GeomInfoPi(j).v;
}
break;
default:
;
}
outfile << "\n";
}
outfile << "\n" << "\n";
outfile << "# matnr np p1 p2 p3 p4" << "\n";
outfile << "volumeelements" << "\n";
outfile << GetNE() << "\n";
for (ElementIndex ei = 0; ei < GetNE(); ei++)
{
outfile << (*this)[ei].GetIndex();
outfile << " " << (*this)[ei].GetNP();
Element el = (*this)[ei];
if (inverttets) el.Invert();
for (j = 0; j < el.GetNP(); j++)
outfile << " " << el[j];
outfile << "\n";
}
outfile << "\n" << "\n";
// outfile << " surf1 surf2 p1 p2" << "\n";
outfile << "# surfid 0 p1 p2 trignum1 trignum2 domin/surfnr1 domout/surfnr2 ednr1 dist1 ednr2 dist2 \n";
outfile << "edgesegmentsgi2" << "\n";
outfile << GetNSeg() << "\n";
for (i = 1; i <= GetNSeg(); i++)
{
const Segment & seg = LineSegment (i);
outfile.width(8);
outfile << seg.si; // 2D: bc number, 3D: wievielte Kante
outfile.width(8);
outfile << 0;
outfile.width(8);
outfile << seg[0];
outfile.width(8);
outfile << seg[1];
outfile << " ";
outfile.width(8);
outfile << seg.geominfo[0].trignum; // stl dreiecke
outfile << " ";
outfile.width(8);
outfile << seg.geominfo[1].trignum; // << endl; // stl dreieck
if (dimension == 3)
{
outfile << " ";
outfile.width(8);
outfile << seg.surfnr1+1;
outfile << " ";
outfile.width(8);
outfile << seg.surfnr2+1;
}
else
{
outfile << " ";
outfile.width(8);
outfile << seg.domin;
outfile << " ";
outfile.width(8);
outfile << seg.domout;
}
outfile << " ";
outfile.width(8);
outfile << seg.edgenr;
outfile << " ";
outfile.width(12);
outfile.precision(16);
outfile << seg.epgeominfo[0].dist; // splineparameter (2D)
outfile << " ";
outfile.width(8);
outfile.precision(16);
outfile << seg.epgeominfo[1].edgenr; // geometry dependent
outfile << " ";
outfile.width(12);
outfile << seg.epgeominfo[1].dist;
outfile << "\n";
}
outfile << "\n" << "\n";
outfile << "# X Y Z" << "\n";
outfile << "points" << "\n";
outfile << GetNP() << "\n";
outfile.precision(16);
outfile.setf (ios::fixed, ios::floatfield);
outfile.setf (ios::showpoint);
PointIndex pi;
for (pi = PointIndex::BASE;
pi < GetNP()+PointIndex::BASE; pi++)
{
outfile.width(22);
outfile << (*this)[pi](0)/scale << " ";
outfile.width(22);
outfile << (*this)[pi](1)/scale << " ";
outfile.width(22);
outfile << (*this)[pi](2)/scale << "\n";
}
if (ident -> GetMaxNr() > 0)
{
outfile << "identifications\n";
Array<INDEX_2> identpairs;
int cnt = 0;
for (i = 1; i <= ident -> GetMaxNr(); i++)
{
ident -> GetPairs (i, identpairs);
cnt += identpairs.Size();
}
outfile << cnt << "\n";
for (i = 1; i <= ident -> GetMaxNr(); i++)
{
ident -> GetPairs (i, identpairs);
for (j = 1; j <= identpairs.Size(); j++)
{
outfile.width (8);
outfile << identpairs.Get(j).I1();
outfile.width (8);
outfile << identpairs.Get(j).I2();
outfile.width (8);
outfile << i << "\n";
}
}
outfile << "identificationtypes\n";
outfile << ident -> GetMaxNr() << "\n";
for (i = 1; i <= ident -> GetMaxNr(); i++)
{
int type = ident -> GetType(i);
outfile << " " << type;
}
outfile << "\n";
}
int cntmat = 0;
for (i = 1; i <= materials.Size(); i++)
if (materials.Get(i) && strlen (materials.Get(i)))
cntmat++;
if (cntmat)
{
outfile << "materials" << endl;
outfile << cntmat << endl;
for (i = 1; i <= materials.Size(); i++)
if (materials.Get(i) && strlen (materials.Get(i)))
outfile << i << " " << materials.Get(i) << endl;
}
int cntbcnames = 0;
for ( int ii = 0; ii < bcnames.Size(); ii++ )
if ( bcnames[ii] ) cntbcnames++;
if ( cntbcnames )
{
outfile << "\n\nbcnames" << endl << bcnames.Size() << endl;
for ( i = 0; i < bcnames.Size(); i++ )
outfile << i+1 << "\t" << GetBCName(i) << endl;
outfile << endl << endl;
}
/*
if ( GetDimension() == 2 )
{
for (i = 1; i <= GetNSeg(); i++)
{
const Segment & seg = LineSegment (i);
if ( ! bcprops.Contains(seg.si) && seg.GetBCName() != "" )
{
bcprops.Append(seg.si);
cntbcnames++;
}
}
}
else
{
for (sei = 0; sei < GetNSE(); sei++)
{
if ((*this)[sei].GetIndex())
{
int bcp = GetFaceDescriptor((*this)[sei].GetIndex ()).BCProperty();
string name = GetFaceDescriptor((*this)[sei].GetIndex ()).BCName();
if ( !bcprops.Contains(bcp) &&
name != "" )
{
bcprops.Append(bcp);
cntbcnames++;
}
}
}
}
bcprops.SetSize(0);
if ( cntbcnames )
{
outfile << "\nbcnames" << endl << cntbcnames << endl;
if ( GetDimension() == 2 )
{
for (i = 1; i <= GetNSeg(); i++)
{
const Segment & seg = LineSegment (i);
if ( ! bcprops.Contains(seg.si) && seg.GetBCName() != "" )
{
bcprops.Append(seg.si);
outfile << seg.si << "\t" << seg.GetBCName() << endl;
}
}
}
else
{
for (sei = 0; sei < GetNSE(); sei++)
{
if ((*this)[sei].GetIndex())
{
int bcp = GetFaceDescriptor((*this)[sei].GetIndex ()).BCProperty();
string name = GetFaceDescriptor((*this)[sei].GetIndex ()).BCName();
if ( !bcprops.Contains(bcp) &&
name != "" )
{
bcprops.Append(bcp);
outfile << bcp << "\t" << name << endl;
}
}
}
}
outfile << endl << endl;
}
*/
int cnt_sing = 0;
for (PointIndex pi = points.Begin(); pi < points.End(); pi++)
if ((*this)[pi].Singularity()>=1.) cnt_sing++;
if (cnt_sing)
{
outfile << "singular_points" << endl << cnt_sing << endl;
for (PointIndex pi = points.Begin(); pi < points.End(); pi++)
if ((*this)[pi].Singularity()>=1.)
outfile << int(pi) << "\t" << (*this)[pi].Singularity() << endl;
}
cnt_sing = 0;
for (SegmentIndex si = 0; si < GetNSeg(); si++)
if ( segments[si].singedge_left ) cnt_sing++;
if (cnt_sing)
{
outfile << "singular_edge_left" << endl << cnt_sing << endl;
for (SegmentIndex si = 0; si < GetNSeg(); si++)
if ( segments[si].singedge_left )
outfile << int(si) << "\t" << segments[si].singedge_left << endl;
}
cnt_sing = 0;
for (SegmentIndex si = 0; si < GetNSeg(); si++)
if ( segments[si].singedge_right ) cnt_sing++;
if (cnt_sing)
{
outfile << "singular_edge_right" << endl << cnt_sing << endl;
for (SegmentIndex si = 0; si < GetNSeg(); si++)
if ( segments[si].singedge_right )
outfile << int(si) << "\t" << segments[si].singedge_right << endl;
}
cnt_sing = 0;
for (SurfaceElementIndex sei = 0; sei < GetNSE(); sei++)
if ( GetFaceDescriptor ((*this)[sei].GetIndex()).domin_singular)
cnt_sing++;
if (cnt_sing)
{
outfile << "singular_face_inside" << endl << cnt_sing << endl;
for (SurfaceElementIndex sei = 0; sei < GetNSE(); sei++)
if ( GetFaceDescriptor ((*this)[sei].GetIndex()).domin_singular)
outfile << int(sei) << "\t" <<
GetFaceDescriptor ((*this)[sei].GetIndex()).domin_singular << endl;
}
cnt_sing = 0;
for (SurfaceElementIndex sei = 0; sei < GetNSE(); sei++)
if ( GetFaceDescriptor ((*this)[sei].GetIndex()).domout_singular) cnt_sing++;
if (cnt_sing)
{
outfile << "singular_face_outside" << endl << cnt_sing << endl;
for (SurfaceElementIndex sei = 0; sei < GetNSE(); sei++)
if ( GetFaceDescriptor ((*this)[sei].GetIndex()).domout_singular)
outfile << int(sei) << "\t"
<< GetFaceDescriptor ((*this)[sei].GetIndex()).domout_singular << endl;
}
// Philippose - 09/07/2009
// Add mesh face colours to Netgen Vol file format
// The colours are saved in RGB triplets
int cnt_facedesc = GetNFD();
if (cnt_facedesc)
{
outfile << endl << endl << "# Surfnr Red Green Blue" << endl;
outfile << "face_colours" << endl << cnt_facedesc << endl;
outfile.precision(8);
outfile.setf(ios::fixed, ios::floatfield);
outfile.setf(ios::showpoint);
for(i = 1; i <= cnt_facedesc; i++)
{
outfile.width(8);
outfile << GetFaceDescriptor(i).SurfNr()+1 << " ";
outfile.width(12);
outfile << GetFaceDescriptor(i).SurfColour().X() << " ";
outfile.width(12);
outfile << GetFaceDescriptor(i).SurfColour().Y() << " ";
outfile.width(12);
outfile << GetFaceDescriptor(i).SurfColour().Z();
outfile << endl;
}
}
}
void Mesh :: Load (const string & filename)
{
cout << "filename = " << filename << endl;
istream * infile = NULL;
if (filename.find(".vol.gz") != string::npos)
infile = new igzstream (filename.c_str());
else
infile = new ifstream (filename.c_str());
// ifstream infile(filename.c_str());
if (! (infile -> good()) )
throw NgException ("mesh file not found");
Load(*infile);
delete infile;
}
void Mesh :: Load (istream & infile)
{
if (! (infile.good()) )
{
cout << "cannot load mesh" << endl;
throw NgException ("mesh file not found");
}
char str[100];
int i, n;
double scale = 1; // globflags.GetNumFlag ("scale", 1);
int inverttets = 0; // globflags.GetDefineFlag ("inverttets");
int invertsurf = 0; // globflags.GetDefineFlag ("invertsurfacemesh");
facedecoding.SetSize(0);
bool endmesh = false;
while (infile.good() && !endmesh)
{
infile >> str;
if (strcmp (str, "dimension") == 0)
{
infile >> dimension;
}
if (strcmp (str, "geomtype") == 0)
{
int hi;
infile >> hi;
geomtype = GEOM_TYPE(hi);
}
if (strcmp (str, "surfaceelements") == 0 || strcmp (str, "surfaceelementsgi")==0 || strcmp (str, "surfaceelementsuv") == 0)
{
infile >> n;
PrintMessage (3, n, " surface elements");
bool geominfo = strcmp (str, "surfaceelementsgi") == 0;
bool uv = strcmp (str, "surfaceelementsuv") == 0;
for (i = 1; i <= n; i++)
{
int surfnr, bcp, domin, domout, nep, faceind = 0;
infile >> surfnr >> bcp >> domin >> domout;
surfnr--;
bool invert_el = false;
/*
if (domin == 0)
{
invert_el = true;
Swap (domin, domout);
}
*/
for (int j = 1; j <= facedecoding.Size(); j++)
if (GetFaceDescriptor(j).SurfNr() == surfnr &&
GetFaceDescriptor(j).BCProperty() == bcp &&
GetFaceDescriptor(j).DomainIn() == domin &&
GetFaceDescriptor(j).DomainOut() == domout)
faceind = j;
// if (facedecoding.Size()) faceind = 1; // for timing
if (!faceind)
{
faceind = AddFaceDescriptor (FaceDescriptor(surfnr, domin, domout, 0));
GetFaceDescriptor(faceind).SetBCProperty (bcp);
}
infile >> nep;
if (!nep) nep = 3;
Element2d tri(nep);
tri.SetIndex(faceind);
for (int j = 1; j <= nep; j++)
infile >> tri.PNum(j);
if (geominfo)
for (int j = 1; j <= nep; j++)
infile >> tri.GeomInfoPi(j).trignum;
if (uv)
for (int j = 1; j <= nep; j++)
infile >> tri.GeomInfoPi(j).u >> tri.GeomInfoPi(j).v;
if (invertsurf) tri.Invert();
if (invert_el) tri.Invert();
AddSurfaceElement (tri);
}
}
if (strcmp (str, "volumeelements") == 0)
{
infile >> n;
PrintMessage (3, n, " volume elements");
for (i = 1; i <= n; i++)
{
Element el;
int hi, nep;
infile >> hi;
if (hi == 0) hi = 1;
el.SetIndex(hi);
infile >> nep;
el.SetNP(nep);
for (int j = 0; j < nep; j++)
infile >> (int&)(el[j]);
if (inverttets)
el.Invert();
AddVolumeElement (el);
}
}
if (strcmp (str, "edgesegments") == 0)
{
infile >> n;
for (i = 1; i <= n; i++)
{
Segment seg;
int hi;
infile >> seg.si >> hi >> seg[0] >> seg[1];
AddSegment (seg);
}
}
if (strcmp (str, "edgesegmentsgi") == 0)
{
infile >> n;
for (i = 1; i <= n; i++)
{
Segment seg;
int hi;
infile >> seg.si >> hi >> seg[0] >> seg[1]
>> seg.geominfo[0].trignum
>> seg.geominfo[1].trignum;
AddSegment (seg);
}
}
if (strcmp (str, "edgesegmentsgi2") == 0)
{
int a;
infile >> a;
n=a;
PrintMessage (3, n, " curve elements");
for (i = 1; i <= n; i++)
{
Segment seg;
int hi;
infile >> seg.si >> hi >> seg[0] >> seg[1]
>> seg.geominfo[0].trignum
>> seg.geominfo[1].trignum
>> seg.surfnr1 >> seg.surfnr2
>> seg.edgenr
>> seg.epgeominfo[0].dist
>> seg.epgeominfo[1].edgenr
>> seg.epgeominfo[1].dist;
seg.epgeominfo[0].edgenr = seg.epgeominfo[1].edgenr;
seg.domin = seg.surfnr1;
seg.domout = seg.surfnr2;
seg.surfnr1--;
seg.surfnr2--;
AddSegment (seg);
}
}
if (strcmp (str, "points") == 0)
{
infile >> n;
PrintMessage (3, n, " points");
for (i = 1; i <= n; i++)
{
Point3d p;
infile >> p.X() >> p.Y() >> p.Z();
p.X() *= scale;
p.Y() *= scale;
p.Z() *= scale;
AddPoint (p);
}
PrintMessage (3, n, " points done");
}
if (strcmp (str, "identifications") == 0)
{
infile >> n;
PrintMessage (3, n, " identifications");
for (i = 1; i <= n; i++)
{
PointIndex pi1, pi2;
int ind;
infile >> pi1 >> pi2 >> ind;
ident -> Add (pi1, pi2, ind);
}
}
if (strcmp (str, "identificationtypes") == 0)
{
infile >> n;
PrintMessage (3, n, " identificationtypes");
for (i = 1; i <= n; i++)
{
int type;
infile >> type;
ident -> SetType(i,Identifications::ID_TYPE(type));
}
}
if (strcmp (str, "materials") == 0)
{
infile >> n;
for (i = 1; i <= n; i++)
{
int nr;
string mat;
infile >> nr >> mat;
SetMaterial (nr, mat.c_str());
}
}
if ( strcmp (str, "bcnames" ) == 0 )
{
infile >> n;
Array<int,0> bcnrs(n);
SetNBCNames(n);
for ( i = 1; i <= n; i++ )
{
string nextbcname;
infile >> bcnrs[i-1] >> nextbcname;
bcnames[bcnrs[i-1]-1] = new string(nextbcname);
}
if ( GetDimension() == 2 )
{
for (i = 1; i <= GetNSeg(); i++)
{
Segment & seg = LineSegment (i);
if ( seg.si <= n )
seg.SetBCName (bcnames[seg.si-1]);
else
seg.SetBCName(0);
}
}
else
{
for (SurfaceElementIndex sei = 0; sei < GetNSE(); sei++)
{
if ((*this)[sei].GetIndex())
{
int bcp = GetFaceDescriptor((*this)[sei].GetIndex ()).BCProperty();
if ( bcp <= n )
GetFaceDescriptor((*this)[sei].GetIndex ()).SetBCName(bcnames[bcp-1]);
else
GetFaceDescriptor((*this)[sei].GetIndex ()).SetBCName(0);
}
}
}
}
if (strcmp (str, "singular_points") == 0)
{
infile >> n;
for (i = 1; i <= n; i++)
{
PointIndex pi;
double s;
infile >> pi;
infile >> s;
(*this)[pi].Singularity (s);
}
}
if (strcmp (str, "singular_edge_left") == 0)
{
infile >> n;
for (i = 1; i <= n; i++)
{
SegmentIndex si;
double s;
infile >> si;
infile >> s;
(*this)[si].singedge_left = s;
}
}
if (strcmp (str, "singular_edge_right") == 0)
{
infile >> n;
for (i = 1; i <= n; i++)
{
SegmentIndex si;
double s;
infile >> si;
infile >> s;
(*this)[si].singedge_right = s;
}
}
if (strcmp (str, "singular_face_inside") == 0)
{
infile >> n;
for (i = 1; i <= n; i++)
{
SurfaceElementIndex sei;
double s;
infile >> sei;
infile >> s;
GetFaceDescriptor((*this)[sei].GetIndex()).domin_singular = s;
}
}
if (strcmp (str, "singular_face_outside") == 0)
{
infile >> n;
for (i = 1; i <= n; i++)
{
SurfaceElementIndex sei;
double s;
infile >> sei;
infile >> s;
GetFaceDescriptor((*this)[sei].GetIndex()).domout_singular = s;
}
}
// Philippose - 09/07/2009
// Add mesh face colours to Netgen Vol file format
// The colours are read in as RGB triplets
if (strcmp (str, "face_colours") == 0)
{
int cnt_facedesc = GetNFD();
infile >> n;
if(n == cnt_facedesc)
{
for(i = 1; i <= n; i++)
{
int surfnr = 0;
Vec3d surfcolour(0.0,1.0,0.0);
infile >> surfnr
>> surfcolour.X()
>> surfcolour.Y()
>> surfcolour.Z();
surfnr--;
if(surfnr > 0)
{
for(int facedesc = 1; facedesc <= cnt_facedesc; facedesc++)
{
if(surfnr == GetFaceDescriptor(facedesc).SurfNr())
{
GetFaceDescriptor(facedesc).SetSurfColour(surfcolour);
}
}
}
}
}
}
if (strcmp (str, "endmesh") == 0)
endmesh = true;
strcpy (str, "");
}
CalcSurfacesOfNode ();
if (ntasks == 1) // sequential run only
{
topology -> Update();
clusters -> Update();
}
SetNextMajorTimeStamp();
// PrintMemInfo (cout);
}
void Mesh :: Merge (const string & filename, const int surfindex_offset)
{
ifstream infile(filename.c_str());
if (!infile.good())
throw NgException ("mesh file not found");
Merge(infile,surfindex_offset);
}
void Mesh :: Merge (istream & infile, const int surfindex_offset)
{
char str[100];
int i, n;
int inverttets = 0; // globflags.GetDefineFlag ("inverttets");
int oldnp = GetNP();
int oldne = GetNSeg();
int oldnd = GetNDomains();
for(SurfaceElementIndex si = 0; si < GetNSE(); si++)
for(int j=1; j<=(*this)[si].GetNP(); j++) (*this)[si].GeomInfoPi(j).trignum = -1;
int max_surfnr = 0;
for (i = 1; i <= GetNFD(); i++)
max_surfnr = max2 (max_surfnr, GetFaceDescriptor(i).SurfNr());
max_surfnr++;
if(max_surfnr < surfindex_offset) max_surfnr = surfindex_offset;
bool endmesh = false;
while (infile.good() && !endmesh)
{
infile >> str;
if (strcmp (str, "surfaceelementsgi") == 0 || strcmp (str, "surfaceelements") == 0)
{
infile >> n;
PrintMessage (3, n, " surface elements");
for (i = 1; i <= n; i++)
{
int j;
int surfnr, bcp, domin, domout, nep, faceind = 0;
infile >> surfnr >> bcp >> domin >> domout;
surfnr--;
if(domin > 0) domin += oldnd;
if(domout > 0) domout += oldnd;
surfnr += max_surfnr;
for (j = 1; j <= facedecoding.Size(); j++)
if (GetFaceDescriptor(j).SurfNr() == surfnr &&
GetFaceDescriptor(j).BCProperty() == bcp &&
GetFaceDescriptor(j).DomainIn() == domin &&
GetFaceDescriptor(j).DomainOut() == domout)
faceind = j;
if (!faceind)
{
faceind = AddFaceDescriptor (FaceDescriptor(surfnr, domin, domout, 0));
if(GetDimension() == 2) bcp++;
GetFaceDescriptor(faceind).SetBCProperty (bcp);
}
infile >> nep;
if (!nep) nep = 3;
Element2d tri(nep);
tri.SetIndex(faceind);
for (j = 1; j <= nep; j++)
{
infile >> tri.PNum(j);
tri.PNum(j) = tri.PNum(j) + oldnp;
}
if (strcmp (str, "surfaceelementsgi") == 0)
for (j = 1; j <= nep; j++)
{
infile >> tri.GeomInfoPi(j).trignum;
tri.GeomInfoPi(j).trignum = -1;
}
AddSurfaceElement (tri);
}
}
if (strcmp (str, "edgesegments") == 0)
{
infile >> n;
for (i = 1; i <= n; i++)
{
Segment seg;
int hi;
infile >> seg.si >> hi >> seg[0] >> seg[1];
seg[0] = seg[0] + oldnp;
seg[1] = seg[1] + oldnp;
AddSegment (seg);
}
}
if (strcmp (str, "edgesegmentsgi") == 0)
{
infile >> n;
for (i = 1; i <= n; i++)
{
Segment seg;
int hi;
infile >> seg.si >> hi >> seg[0] >> seg[1]
>> seg.geominfo[0].trignum
>> seg.geominfo[1].trignum;
seg[0] = seg[0] + oldnp;
seg[1] = seg[1] + oldnp;
AddSegment (seg);
}
}
if (strcmp (str, "edgesegmentsgi2") == 0)
{
infile >> n;
PrintMessage (3, n, " curve elements");
for (i = 1; i <= n; i++)
{
Segment seg;
int hi;
infile >> seg.si >> hi >> seg[0] >> seg[1]
>> seg.geominfo[0].trignum
>> seg.geominfo[1].trignum
>> seg.surfnr1 >> seg.surfnr2
>> seg.edgenr
>> seg.epgeominfo[0].dist
>> seg.epgeominfo[1].edgenr
>> seg.epgeominfo[1].dist;
seg.epgeominfo[0].edgenr = seg.epgeominfo[1].edgenr;
seg.surfnr1--;
seg.surfnr2--;
if(seg.surfnr1 >= 0) seg.surfnr1 = seg.surfnr1 + max_surfnr;
if(seg.surfnr2 >= 0) seg.surfnr2 = seg.surfnr2 + max_surfnr;
seg[0] = seg[0] +oldnp;
seg[1] = seg[1] +oldnp;
seg.edgenr = seg.edgenr + oldne;
seg.epgeominfo[1].edgenr = seg.epgeominfo[1].edgenr + oldne;
AddSegment (seg);
}
}
if (strcmp (str, "volumeelements") == 0)
{
infile >> n;
PrintMessage (3, n, " volume elements");
for (i = 1; i <= n; i++)
{
Element el;
int hi, nep;
infile >> hi;
if (hi == 0) hi = 1;
el.SetIndex(hi+oldnd);
infile >> nep;
el.SetNP(nep);
for (int j = 0; j < nep; j++)
{
infile >> (int&)(el[j]);
el[j] = el[j]+oldnp;
}
if (inverttets)
el.Invert();
AddVolumeElement (el);
}
}
if (strcmp (str, "points") == 0)
{
infile >> n;
PrintMessage (3, n, " points");
for (i = 1; i <= n; i++)
{
Point3d p;
infile >> p.X() >> p.Y() >> p.Z();
AddPoint (p);
}
}
if (strcmp (str, "endmesh") == 0)
{
endmesh = true;
}
if (strcmp (str, "materials") == 0)
{
infile >> n;
for (i = 1; i <= n; i++)
{
int nr;
string mat;
infile >> nr >> mat;
SetMaterial (nr+oldnd, mat.c_str());
}
}
strcpy (str, "");
}
CalcSurfacesOfNode ();
topology -> Update();
clusters -> Update();
SetNextMajorTimeStamp();
}
bool Mesh :: TestOk () const
{
for (ElementIndex ei = 0; ei < volelements.Size(); ei++)
{
for (int j = 0; j < 4; j++)
if ( (*this)[ei][j] <= PointIndex::BASE-1)
{
(*testout) << "El " << ei << " has 0 nodes: ";
for (int k = 0; k < 4; k++)
(*testout) << (*this)[ei][k];
break;
}
}
CheckMesh3D (*this);
return 1;
}
void Mesh :: SetAllocSize(int nnodes, int nsegs, int nsel, int nel)
{
points.SetAllocSize(nnodes);
segments.SetAllocSize(nsegs);
surfelements.SetAllocSize(nsel);
volelements.SetAllocSize(nel);
}
void Mesh :: BuildBoundaryEdges(void)
{
delete boundaryedges;
boundaryedges = new INDEX_2_CLOSED_HASHTABLE<int>
(3 * (GetNSE() + GetNOpenElements()) + GetNSeg() + 1);
for (SurfaceElementIndex sei = 0; sei < GetNSE(); sei++)
{
const Element2d & sel = surfelements[sei];
if (sel.IsDeleted()) continue;
// int si = sel.GetIndex();
if (sel.GetNP() <= 4)
for (int j = 0; j < sel.GetNP(); j++)
{
INDEX_2 i2;
i2.I1() = sel.PNumMod(j+1);
i2.I2() = sel.PNumMod(j+2);
i2.Sort();
boundaryedges->Set (i2, 1);
}
else if (sel.GetType()==TRIG6)
{
for (int j = 0; j < 3; j++)
{
INDEX_2 i2;
i2.I1() = sel[j];
i2.I2() = sel[(j+1)%3];
i2.Sort();
boundaryedges->Set (i2, 1);
}
}
else
cerr << "illegal elemenet for buildboundaryedges" << endl;
}
for (int i = 0; i < openelements.Size(); i++)
{
const Element2d & sel = openelements[i];
for (int j = 0; j < sel.GetNP(); j++)
{
INDEX_2 i2;
i2.I1() = sel.PNumMod(j+1);
i2.I2() = sel.PNumMod(j+2);
i2.Sort();
boundaryedges->Set (i2, 1);
points[sel[j]].SetType(FIXEDPOINT);
}
}
for (int i = 0; i < GetNSeg(); i++)
{
const Segment & seg = segments[i];
INDEX_2 i2(seg[0], seg[1]);
i2.Sort();
boundaryedges -> Set (i2, 2);
//segmentht -> Set (i2, i);
}
}
void Mesh :: CalcSurfacesOfNode ()
{
surfacesonnode.SetSize (GetNP());
delete boundaryedges;
boundaryedges = NULL;
delete surfelementht;
delete segmentht;
/*
surfelementht = new INDEX_3_HASHTABLE<int> (GetNSE()/4 + 1);
segmentht = new INDEX_2_HASHTABLE<int> (GetNSeg() + 1);
*/
surfelementht = new INDEX_3_CLOSED_HASHTABLE<int> (3*GetNSE() + 1);
segmentht = new INDEX_2_CLOSED_HASHTABLE<int> (3*GetNSeg() + 1);
for (SurfaceElementIndex sei = 0; sei < GetNSE(); sei++)
{
const Element2d & sel = surfelements[sei];
if (sel.IsDeleted()) continue;
int si = sel.GetIndex();
for (int j = 0; j < sel.GetNP(); j++)
{
PointIndex pi = sel[j];
bool found = 0;
for (int k = 0; k < surfacesonnode[pi].Size(); k++)
if (surfacesonnode[pi][k] == si)
{
found = 1;
break;
}
if (!found)
surfacesonnode.Add (pi, si);
}
}
/*
for (sei = 0; sei < GetNSE(); sei++)
{
const Element2d & sel = surfelements[sei];
if (sel.IsDeleted()) continue;
INDEX_3 i3;
i3.I1() = sel.PNum(1);
i3.I2() = sel.PNum(2);
i3.I3() = sel.PNum(3);
i3.Sort();
surfelementht -> PrepareSet (i3);
}
surfelementht -> AllocateElements();
*/
for (SurfaceElementIndex sei = 0; sei < GetNSE(); sei++)
{
const Element2d & sel = surfelements[sei];
if (sel.IsDeleted()) continue;
INDEX_3 i3;
i3.I1() = sel.PNum(1);
i3.I2() = sel.PNum(2);
i3.I3() = sel.PNum(3);
i3.Sort();
surfelementht -> Set (i3, sei); // war das wichtig ??? sel.GetIndex());
}
// int np = GetNP();
if (dimension == 3)
{
for (PointIndex pi = points.Begin(); pi < points.End(); pi++)
points[pi].SetType (INNERPOINT);
if (GetNFD() == 0)
{
for (SurfaceElementIndex sei = 0; sei < GetNSE(); sei++)
{
const Element2d & sel = surfelements[sei];
if (sel.IsDeleted()) continue;
for (int j = 0; j < sel.GetNP(); j++)
{
PointIndex pi = SurfaceElement(sei)[j];
points[pi].SetType(FIXEDPOINT);
}
}
}
else
{
for (SurfaceElementIndex sei = 0; sei < GetNSE(); sei++)
{
const Element2d & sel = surfelements[sei];
if (sel.IsDeleted()) continue;
for (int j = 0; j < sel.GetNP(); j++)
{
PointIndex pi = sel[j];
int ns = surfacesonnode[pi].Size();
if (ns == 1)
points[pi].SetType(SURFACEPOINT);
if (ns == 2)
points[pi].SetType(EDGEPOINT);
if (ns >= 3)
points[pi].SetType(FIXEDPOINT);
}
}
}
}
for (int i = 0; i < segments.Size(); i++)
{
const Segment & seg = segments[i];
for (int j = 1; j <= 2; j++)
{
PointIndex hi = (j == 1) ? seg[0] : seg[1];
if (points[hi].Type() == INNERPOINT ||
points[hi].Type() == SURFACEPOINT)
points[hi].SetType(EDGEPOINT);
}
}
for (int i = 0; i < lockedpoints.Size(); i++)
points[lockedpoints[i]].SetType(FIXEDPOINT);
/*
for (i = 0; i < openelements.Size(); i++)
{
const Element2d & sel = openelements[i];
for (j = 0; j < sel.GetNP(); j++)
{
INDEX_2 i2;
i2.I1() = sel.PNumMod(j+1);
i2.I2() = sel.PNumMod(j+2);
i2.Sort();
boundaryedges->Set (i2, 1);
points[sel[j]].SetType(FIXEDPOINT);
}
}
*/
// eltyps.SetSize (GetNE());
// eltyps = FREEELEMENT;
for (int i = 0; i < GetNSeg(); i++)
{
const Segment & seg = segments[i];
INDEX_2 i2(seg[0], seg[1]);
i2.Sort();
//boundaryedges -> Set (i2, 2);
segmentht -> Set (i2, i);
}
}
void Mesh :: FixPoints (const BitArray & fixpoints)
{
if (fixpoints.Size() != GetNP())
{
cerr << "Mesh::FixPoints: sizes don't fit" << endl;
return;
}
int np = GetNP();
for (int i = 1; i <= np; i++)
if (fixpoints.Test(i))
{
points.Elem(i).SetType (FIXEDPOINT);
}
}
void Mesh :: FindOpenElements (int dom)
{
static int timer = NgProfiler::CreateTimer ("Mesh::FindOpenElements");
NgProfiler::RegionTimer reg (timer);
int np = GetNP();
int ne = GetNE();
int nse = GetNSE();
Array<int,PointIndex::BASE> numonpoint(np);
numonpoint = 0;
for (ElementIndex ei = 0; ei < ne; ei++)
{
const Element & el = (*this)[ei];
if (dom == 0 || dom == el.GetIndex())
{
if (el.GetNP() == 4)
{
INDEX_4 i4(el[0], el[1], el[2], el[3]);
i4.Sort();
numonpoint[i4.I1()]++;
numonpoint[i4.I2()]++;
}
else
for (int j = 0; j < el.GetNP(); j++)
numonpoint[el[j]]++;
}
}
TABLE<ElementIndex,PointIndex::BASE> elsonpoint(numonpoint);
for (ElementIndex ei = 0; ei < ne; ei++)
{
const Element & el = (*this)[ei];
if (dom == 0 || dom == el.GetIndex())
{
if (el.GetNP() == 4)
{
INDEX_4 i4(el[0], el[1], el[2], el[3]);
i4.Sort();
elsonpoint.Add (i4.I1(), ei);
elsonpoint.Add (i4.I2(), ei);
}
else
for (int j = 0; j < el.GetNP(); j++)
elsonpoint.Add (el[j], ei);
}
}
Array<char, 1> hasface(GetNFD());
int i;
for (i = 1; i <= GetNFD(); i++)
{
int domin = GetFaceDescriptor(i).DomainIn();
int domout = GetFaceDescriptor(i).DomainOut();
hasface[i] =
( dom == 0 && (domin != 0 || domout != 0) ) ||
( dom != 0 && (domin == dom || domout == dom) );
}
numonpoint = 0;
for (SurfaceElementIndex sii = 0; sii < nse; sii++)
{
int ind = surfelements[sii].GetIndex();
/*
if (
GetFaceDescriptor(ind).DomainIn() &&
(dom == 0 || dom == GetFaceDescriptor(ind).DomainIn())
||
GetFaceDescriptor(ind).DomainOut() &&
(dom == 0 || dom == GetFaceDescriptor(ind).DomainOut())
)
*/
if (hasface[ind])
{
/*
Element2d hel = surfelements[i];
hel.NormalizeNumbering();
numonpoint[hel[0]]++;
*/
const Element2d & hel = surfelements[sii];
int mini = 0;
for (int j = 1; j < hel.GetNP(); j++)
if (hel[j] < hel[mini])
mini = j;
numonpoint[hel[mini]]++;
}
}
TABLE<SurfaceElementIndex,PointIndex::BASE> selsonpoint(numonpoint);
for (SurfaceElementIndex sii = 0; sii < nse; sii++)
{
int ind = surfelements[sii].GetIndex();
/*
if (
GetFaceDescriptor(ind).DomainIn() &&
(dom == 0 || dom == GetFaceDescriptor(ind).DomainIn())
||
GetFaceDescriptor(ind).DomainOut() &&
(dom == 0 || dom == GetFaceDescriptor(ind).DomainOut())
)
*/
if (hasface[ind])
{
/*
Element2d hel = surfelements[i];
hel.NormalizeNumbering();
selsonpoint.Add (hel[0], i);
*/
const Element2d & hel = surfelements[sii];
int mini = 0;
for (int j = 1; j < hel.GetNP(); j++)
if (hel[j] < hel[mini])
mini = j;
selsonpoint.Add (hel[mini], sii);
}
}
int ii;
PointIndex pi;
SurfaceElementIndex sei;
Element2d hel;
INDEX_3_CLOSED_HASHTABLE<INDEX_2> faceht(100);
openelements.SetSize(0);
for (PointIndex pi = points.Begin(); pi < points.End(); pi++)
if (selsonpoint[pi].Size()+elsonpoint[pi].Size())
{
faceht.SetSize (2 * selsonpoint[pi].Size() + 4 * elsonpoint[pi].Size());
FlatArray<SurfaceElementIndex> row = selsonpoint[pi];
for (ii = 0; ii < row.Size(); ii++)
{
hel = SurfaceElement(row[ii]);
if (hel.GetType() == TRIG6) hel.SetType(TRIG);
int ind = hel.GetIndex();
if (GetFaceDescriptor(ind).DomainIn() &&
(dom == 0 || dom == GetFaceDescriptor(ind).DomainIn()) )
{
hel.NormalizeNumbering();
if (hel.PNum(1) == pi)
{
INDEX_3 i3(hel[0], hel[1], hel[2]);
INDEX_2 i2 (GetFaceDescriptor(ind).DomainIn(),
(hel.GetNP() == 3)
? PointIndex (PointIndex::BASE-1)
: hel.PNum(4));
faceht.Set (i3, i2);
}
}
if (GetFaceDescriptor(ind).DomainOut() &&
(dom == 0 || dom == GetFaceDescriptor(ind).DomainOut()) )
{
hel.Invert();
hel.NormalizeNumbering();
if (hel.PNum(1) == pi)
{
INDEX_3 i3(hel[0], hel[1], hel[2]);
INDEX_2 i2 (GetFaceDescriptor(ind).DomainOut(),
(hel.GetNP() == 3)
? PointIndex (PointIndex::BASE-1)
: hel.PNum(4));
faceht.Set (i3, i2);
}
}
}
FlatArray<ElementIndex> rowel = elsonpoint[pi];
for (ii = 0; ii < rowel.Size(); ii++)
{
const Element & el = VolumeElement(rowel[ii]);
if (dom == 0 || el.GetIndex() == dom)
{
for (int j = 1; j <= el.GetNFaces(); j++)
{
el.GetFace (j, hel);
hel.Invert();
hel.NormalizeNumbering();
if (hel[0] == pi)
{
INDEX_3 i3(hel[0], hel[1], hel[2]);
if (faceht.Used (i3))
{
INDEX_2 i2 = faceht.Get(i3);
if (i2.I1() == el.GetIndex())
{
i2.I1() = PointIndex::BASE-1;
faceht.Set (i3, i2);
}
else
{
if (i2.I1() == 0)
{
PrintSysError ("more elements on face");
(*testout) << "more elements on face!!!" << endl;
(*testout) << "el = " << el << endl;
(*testout) << "hel = " << hel << endl;
(*testout) << "face = " << i3 << endl;
(*testout) << "points = " << endl;
for (int jj = 1; jj <= 3; jj++)
(*testout) << "p = " << Point(i3.I(jj)) << endl;
}
}
}
else
{
hel.Invert();
hel.NormalizeNumbering();
INDEX_3 i3(hel[0], hel[1], hel[2]);
INDEX_2 i2(el.GetIndex(),
(hel.GetNP() == 3)
? PointIndex (PointIndex::BASE-1)
: hel[3]);
faceht.Set (i3, i2);
}
}
}
}
}
for (int i = 0; i < faceht.Size(); i++)
if (faceht.UsedPos (i))
{
INDEX_3 i3;
INDEX_2 i2;
faceht.GetData (i, i3, i2);
if (i2.I1() != PointIndex::BASE-1)
{
Element2d tri;
tri.SetType ( (i2.I2() == PointIndex::BASE-1) ? TRIG : QUAD);
for (int l = 0; l < 3; l++)
tri[l] = i3.I(l+1);
tri.PNum(4) = i2.I2();
tri.SetIndex (i2.I1());
// tri.Invert();
openelements.Append (tri);
}
}
}
int cnt3 = 0;
for (i = 0; i < openelements.Size(); i++)
if (openelements[i].GetNP() == 3)
cnt3++;
int cnt4 = openelements.Size() - cnt3;
MyStr treequad;
if (cnt4)
treequad = MyStr(" (") + MyStr(cnt3) + MyStr (" + ") +
MyStr(cnt4) + MyStr(")");
PrintMessage (5, openelements.Size(), treequad, " open elements");
BuildBoundaryEdges();
for (int i = 1; i <= openelements.Size(); i++)
{
const Element2d & sel = openelements.Get(i);
if (boundaryedges)
for (int j = 1; j <= sel.GetNP(); j++)
{
INDEX_2 i2;
i2.I1() = sel.PNumMod(j);
i2.I2() = sel.PNumMod(j+1);
i2.Sort();
boundaryedges->Set (i2, 1);
}
for (int j = 1; j <= 3; j++)
{
PointIndex pi = sel.PNum(j);
if (pi < points.End())
points[pi].SetType (FIXEDPOINT);
}
}
/*
for (i = 1; i <= GetNSeg(); i++)
{
const Segment & seg = LineSegment(i);
INDEX_2 i2(seg[0], seg[1]);
i2.Sort();
if (!boundaryedges->Used (i2))
cerr << "WARNING: no boundedge, but seg edge: " << i2 << endl;
boundaryedges -> Set (i2, 2);
segmentht -> Set (i2, i-1);
}
*/
}
bool Mesh :: HasOpenQuads () const
{
int no = GetNOpenElements();
for (int i = 0; i < no; i++)
if (openelements[i].GetNP() == 4)
return true;
return false;
}
void Mesh :: FindOpenSegments (int surfnr)
{
// int i, j, k;
// new version, general elements
// hash index: pnum1-2
// hash data : surfnr, surfel-nr (pos) or segment nr(neg)
INDEX_2_HASHTABLE<INDEX_2> faceht(4 * GetNSE()+GetNSeg()+1);
PrintMessage (5, "Test Opensegments");
for (int i = 1; i <= GetNSeg(); i++)
{
const Segment & seg = LineSegment (i);
if (surfnr == 0 || seg.si == surfnr)
{
INDEX_2 key(seg[0], seg[1]);
INDEX_2 data(seg.si, -i);
if (faceht.Used (key))
{
cerr << "ERROR: Segment " << seg << " already used" << endl;
(*testout) << "ERROR: Segment " << seg << " already used" << endl;
}
faceht.Set (key, data);
}
}
for (int i = 1; i <= GetNSeg(); i++)
{
const Segment & seg = LineSegment (i);
if (surfnr == 0 || seg.si == surfnr)
{
INDEX_2 key(seg[1], seg[0]);
if (!faceht.Used(key))
{
cerr << "ERROR: Segment " << seg << " brother not used" << endl;
(*testout) << "ERROR: Segment " << seg << " brother not used" << endl;
}
}
}
// bool buggy = false;
// ofstream bout("buggy.out");
for (int i = 1; i <= GetNSE(); i++)
{
const Element2d & el = SurfaceElement(i);
if (el.IsDeleted()) continue;
if (surfnr == 0 || el.GetIndex() == surfnr)
{
for (int j = 1; j <= el.GetNP(); j++)
{
INDEX_2 seg (el.PNumMod(j), el.PNumMod(j+1));
INDEX_2 data;
if (seg.I1() <= 0 || seg.I2() <= 0)
cerr << "seg = " << seg << endl;
if (faceht.Used(seg))
{
data = faceht.Get(seg);
if (data.I1() == el.GetIndex())
{
data.I1() = 0;
faceht.Set (seg, data);
}
else
{
// buggy = true;
PrintWarning ("hash table si not fitting for segment: ",
seg.I1(), "-", seg.I2(), " other = ",
data.I2());
// cout << "me: index = " << el.GetIndex() << ", el = " << el << endl;
/*
bout << "has index = " << seg << endl;
bout << "hash value = " << faceht.HashValue (seg) << endl;
if (data.I2() > 0)
{
int io = data.I2();
cout << "other trig: index = " << SurfaceElement(io).GetIndex()
<< ", el = " << SurfaceElement(io) << endl;
}
else
{
cout << "other seg " << -data.I2() << ", si = " << data.I1() << endl;
}
bout << "me: index = " << el.GetIndex() << ", el = " << el << endl;
if (data.I2() > 0)
{
int io = data.I2();
bout << "other trig: index = " << SurfaceElement(io).GetIndex()
<< ", el = " << SurfaceElement(io) << endl;
}
else
{
bout << "other seg " << -data.I2() << ", si = " << data.I1() << endl;
}
*/
}
}
else
{
Swap (seg.I1(), seg.I2());
data.I1() = el.GetIndex();
data.I2() = i;
faceht.Set (seg, data);
}
}
}
}
/*
if (buggy)
{
for (int i = 1; i <= GetNSeg(); i++)
bout << "seg" << i << " " << LineSegment(i) << endl;
for (int i = 1; i <= GetNSE(); i++)
bout << "sel" << i << " " << SurfaceElement(i) << " ind = "
<< SurfaceElement(i).GetIndex() << endl;
bout << "hashtable: " << endl;
for (int j = 1; j <= faceht.GetNBags(); j++)
{
bout << "bag " << j << ":" << endl;
for (int k = 1; k <= faceht.GetBagSize(j); k++)
{
INDEX_2 i2, data;
faceht.GetData (j, k, i2, data);
bout << "key = " << i2 << ", data = " << data << endl;
}
}
exit(1);
}
*/
(*testout) << "open segments: " << endl;
opensegments.SetSize(0);
for (int i = 1; i <= faceht.GetNBags(); i++)
for (int j = 1; j <= faceht.GetBagSize(i); j++)
{
INDEX_2 i2;
INDEX_2 data;
faceht.GetData (i, j, i2, data);
if (data.I1()) // surfnr
{
Segment seg;
seg[0] = i2.I1();
seg[1] = i2.I2();
seg.si = data.I1();
// find geomdata:
if (data.I2() > 0)
{
// segment due to triangle
const Element2d & el = SurfaceElement (data.I2());
for (int k = 1; k <= el.GetNP(); k++)
{
if (seg[0] == el.PNum(k))
seg.geominfo[0] = el.GeomInfoPi(k);
if (seg[1] == el.PNum(k))
seg.geominfo[1] = el.GeomInfoPi(k);
}
(*testout) << "trig seg: ";
}
else
{
// segment due to line
const Segment & lseg = LineSegment (-data.I2());
seg.geominfo[0] = lseg.geominfo[0];
seg.geominfo[1] = lseg.geominfo[1];
(*testout) << "line seg: ";
}
(*testout) << seg[0] << " - " << seg[1]
<< " len = " << Dist (Point(seg[0]), Point(seg[1]))
<< endl;
opensegments.Append (seg);
if (seg.geominfo[0].trignum <= 0 || seg.geominfo[1].trignum <= 0)
{
(*testout) << "Problem with open segment: " << seg << endl;
}
}
}
PrintMessage (3, opensegments.Size(), " open segments found");
(*testout) << opensegments.Size() << " open segments found" << endl;
/*
ptyps.SetSize (GetNP());
for (i = 1; i <= ptyps.Size(); i++)
ptyps.Elem(i) = SURFACEPOINT;
for (i = 1; i <= GetNSeg(); i++)
{
const Segment & seg = LineSegment (i);
ptyps.Elem(seg[0]) = EDGEPOINT;
ptyps.Elem(seg[1]) = EDGEPOINT;
}
for (i = 1; i <= GetNOpenSegments(); i++)
{
const Segment & seg = GetOpenSegment (i);
ptyps.Elem(seg[0]) = EDGEPOINT;
ptyps.Elem(seg[1]) = EDGEPOINT;
}
*/
for (int i = 1; i <= points.Size(); i++)
points.Elem(i).SetType(SURFACEPOINT);
for (int i = 1; i <= GetNSeg(); i++)
{
const Segment & seg = LineSegment (i);
points[seg[0]].SetType(EDGEPOINT);
points[seg[1]].SetType(EDGEPOINT);
}
for (int i = 1; i <= GetNOpenSegments(); i++)
{
const Segment & seg = GetOpenSegment (i);
points[seg[0]].SetType (EDGEPOINT);
points[seg[1]].SetType (EDGEPOINT);
}
/*
for (i = 1; i <= openelements.Size(); i++)
{
const Element2d & sel = openelements.Get(i);
if (boundaryedges)
for (j = 1; j <= sel.GetNP(); j++)
{
INDEX_2 i2;
i2.I1() = sel.PNumMod(j);
i2.I2() = sel.PNumMod(j+1);
i2.Sort();
boundaryedges->Set (i2, 1);
}
for (j = 1; j <= 3; j++)
{
int pi = sel.PNum(j);
if (pi <= ptyps.Size())
ptyps.Elem(pi) = FIXEDPOINT;
}
}
*/
}
void Mesh :: RemoveOneLayerSurfaceElements ()
{
int i, j;
int np = GetNP();
FindOpenSegments();
BitArray frontpoints(np);
frontpoints.Clear();
for (i = 1; i <= GetNOpenSegments(); i++)
{
const Segment & seg = GetOpenSegment(i);
frontpoints.Set (seg[0]);
frontpoints.Set (seg[1]);
}
for (i = 1; i <= GetNSE(); i++)
{
Element2d & sel = surfelements.Elem(i);
int remove = 0;
for (j = 1; j <= sel.GetNP(); j++)
if (frontpoints.Test(sel.PNum(j)))
remove = 1;
if (remove)
sel.PNum(1) = 0;
}
for (i = surfelements.Size(); i >= 1; i--)
{
if (surfelements.Elem(i).PNum(1) == 0)
{
surfelements.Elem(i) = surfelements.Last();
surfelements.DeleteLast();
}
}
RebuildSurfaceElementLists ();
/*
for (int i = 0; i < facedecoding.Size(); i++)
facedecoding[i].firstelement = -1;
for (int i = surfelements.Size()-1; i >= 0; i--)
{
int ind = surfelements[i].GetIndex();
surfelements[i].next = facedecoding[ind-1].firstelement;
facedecoding[ind-1].firstelement = i;
}
*/
timestamp = NextTimeStamp();
// Compress();
}
void Mesh :: FreeOpenElementsEnvironment (int layers)
{
int i, j, k;
PointIndex pi;
const int large = 9999;
Array<int,PointIndex::BASE> dist(GetNP());
dist = large;
for (int i = 1; i <= GetNOpenElements(); i++)
{
const Element2d & face = OpenElement(i);
for (j = 0; j < face.GetNP(); j++)
dist[face[j]] = 1;
}
for (k = 1; k <= layers; k++)
for (i = 1; i <= GetNE(); i++)
{
const Element & el = VolumeElement(i);
if (el[0] == -1 || el.IsDeleted()) continue;
int elmin = large;
for (j = 0; j < el.GetNP(); j++)
if (dist[el[j]] < elmin)
elmin = dist[el[j]];
if (elmin < large)
{
for (j = 0; j < el.GetNP(); j++)
if (dist[el[j]] > elmin+1)
dist[el[j]] = elmin+1;
}
}
int cntfree = 0;
for (i = 1; i <= GetNE(); i++)
{
Element & el = VolumeElement(i);
if (el[0] == -1 || el.IsDeleted()) continue;
int elmin = large;
for (j = 0; j < el.GetNP(); j++)
if (dist[el[j]] < elmin)
elmin = dist[el[j]];
el.flags.fixed = elmin > layers;
// eltyps.Elem(i) = (elmin <= layers) ?
// FREEELEMENT : FIXEDELEMENT;
if (elmin <= layers)
cntfree++;
}
PrintMessage (5, "free: ", cntfree, ", fixed: ", GetNE()-cntfree);
(*testout) << "free: " << cntfree << ", fixed: " << GetNE()-cntfree << endl;
for (pi = PointIndex::BASE;
pi < GetNP()+PointIndex::BASE; pi++)
{
if (dist[pi] > layers+1)
points[pi].SetType(FIXEDPOINT);
}
}
void Mesh :: SetLocalH (netgen::Point<3> pmin, netgen::Point<3> pmax, double grading)
{
using netgen::Point;
Point<3> c = Center (pmin, pmax);
double d = max3 (pmax(0)-pmin(0),
pmax(1)-pmin(1),
pmax(2)-pmin(2));
d /= 2;
Point<3> pmin2 = c - Vec<3> (d, d, d);
Point<3> pmax2 = c + Vec<3> (d, d, d);
delete lochfunc;
lochfunc = new LocalH (pmin2, pmax2, grading, dimension);
}
void Mesh :: RestrictLocalH (const Point3d & p, double hloc)
{
if(hloc < hmin)
hloc = hmin;
//cout << "restrict h in " << p << " to " << hloc << endl;
if (!lochfunc)
{
PrintWarning("RestrictLocalH called, creating mesh-size tree");
Point3d boxmin, boxmax;
GetBox (boxmin, boxmax);
SetLocalH (boxmin, boxmax, 0.8);
}
lochfunc -> SetH (p, hloc);
}
void Mesh :: RestrictLocalHLine (const Point3d & p1,
const Point3d & p2,
double hloc)
{
if(hloc < hmin)
hloc = hmin;
// cout << "restrict h along " << p1 << " - " << p2 << " to " << hloc << endl;
int i;
int steps = int (Dist (p1, p2) / hloc) + 2;
Vec3d v(p1, p2);
for (i = 0; i <= steps; i++)
{
Point3d p = p1 + (double(i)/double(steps) * v);
RestrictLocalH (p, hloc);
}
}
void Mesh :: SetMinimalH (double h)
{
hmin = h;
}
void Mesh :: SetGlobalH (double h)
{
hglob = h;
}
double Mesh :: MaxHDomain (int dom) const
{
if (maxhdomain.Size())
return maxhdomain.Get(dom);
else
return 1e10;
}
void Mesh :: SetMaxHDomain (const Array<double> & mhd)
{
maxhdomain.SetSize(mhd.Size());
for (int i = 1; i <= mhd.Size(); i++)
maxhdomain.Elem(i) = mhd.Get(i);
}
double Mesh :: GetH (const Point3d & p) const
{
double hmin = hglob;
if (lochfunc)
{
double hl = lochfunc->GetH (p);
if (hl < hglob)
hmin = hl;
}
return hmin;
}
double Mesh :: GetMinH (const Point3d & pmin, const Point3d & pmax)
{
double hmin = hglob;
if (lochfunc)
{
double hl = lochfunc->GetMinH (pmin, pmax);
if (hl < hmin)
hmin = hl;
}
return hmin;
}
double Mesh :: AverageH (int surfnr) const
{
int i, j, n;
double hi, hsum;
double maxh = 0, minh = 1e10;
hsum = 0;
n = 0;
for (i = 1; i <= GetNSE(); i++)
{
const Element2d & el = SurfaceElement(i);
if (surfnr == 0 || el.GetIndex() == surfnr)
{
for (j = 1; j <= 3; j++)
{
hi = Dist (Point (el.PNumMod(j)),
Point (el.PNumMod(j+1)));
hsum += hi;
if (hi > maxh) maxh = hi;
if (hi < minh) minh = hi;
n++;
}
}
}
PrintMessage (5, "minh = ", minh, " avh = ", (hsum/n), " maxh = ", maxh);
return (hsum / n);
}
void Mesh :: CalcLocalH (double grading)
{
if (!lochfunc)
{
Point3d pmin, pmax;
GetBox (pmin, pmax);
// SetLocalH (pmin, pmax, mparam.grading);
SetLocalH (pmin, pmax, grading);
}
PrintMessage (3,
"CalcLocalH: ",
GetNP(), " Points ",
GetNE(), " Elements ",
GetNSE(), " Surface Elements");
for (int i = 0; i < GetNSE(); i++)
{
const Element2d & el = surfelements[i];
int j;
if (el.GetNP() == 3)
{
double hel = -1;
for (j = 1; j <= 3; j++)
{
const Point3d & p1 = points[el.PNumMod(j)];
const Point3d & p2 = points[el.PNumMod(j+1)];
/*
INDEX_2 i21(el.PNumMod(j), el.PNumMod(j+1));
INDEX_2 i22(el.PNumMod(j+1), el.PNumMod(j));
if (! identifiedpoints->Used (i21) &&
! identifiedpoints->Used (i22) )
*/
if (!ident -> UsedSymmetric (el.PNumMod(j),
el.PNumMod(j+1)))
{
double hedge = Dist (p1, p2);
if (hedge > hel)
hel = hedge;
// lochfunc->SetH (Center (p1, p2), 2 * Dist (p1, p2));
// (*testout) << "trigseth, p1,2 = " << el.PNumMod(j) << ", " << el.PNumMod(j+1)
// << " h = " << (2 * Dist(p1, p2)) << endl;
}
}
if (hel > 0)
{
const Point3d & p1 = points[el.PNum(1)];
const Point3d & p2 = points[el.PNum(2)];
const Point3d & p3 = points[el.PNum(3)];
lochfunc->SetH (Center (p1, p2, p3), hel);
}
}
else
{
{
const Point3d & p1 = points[el.PNum(1)];
const Point3d & p2 = points[el.PNum(2)];
lochfunc->SetH (Center (p1, p2), 2 * Dist (p1, p2));
}
{
const Point3d & p1 = points[el.PNum(3)];
const Point3d & p2 = points[el.PNum(4)];
lochfunc->SetH (Center (p1, p2), 2 * Dist (p1, p2));
}
}
}
for (int i = 0; i < GetNSeg(); i++)
{
const Segment & seg = segments[i];
const Point3d & p1 = points[seg[0]];
const Point3d & p2 = points[seg[1]];
/*
INDEX_2 i21(seg[0], seg[1]);
INDEX_2 i22(seg[1], seg[0]);
if (identifiedpoints)
if (!identifiedpoints->Used (i21) && !identifiedpoints->Used (i22))
*/
if (!ident -> UsedSymmetric (seg[0], seg[1]))
{
lochfunc->SetH (Center (p1, p2), Dist (p1, p2));
}
}
/*
cerr << "do vol" << endl;
for (i = 1; i <= GetNE(); i++)
{
const Element & el = VolumeElement(i);
if (el.GetType() == TET)
{
int j, k;
for (j = 2; j <= 4; j++)
for (k = 1; k < j; k++)
{
const Point3d & p1 = Point (el.PNum(j));
const Point3d & p2 = Point (el.PNum(k));
lochfunc->SetH (Center (p1, p2), 2 * Dist (p1, p2));
(*testout) << "set vol h to " << (2 * Dist (p1, p2)) << endl;
}
}
}
*/
/*
const char * meshsizefilename =
globflags.GetStringFlag ("meshsize", NULL);
if (meshsizefilename)
{
ifstream msf(meshsizefilename);
if (msf)
{
int nmsp;
msf >> nmsp;
for (i = 1; i <= nmsp; i++)
{
Point3d pi;
double hi;
msf >> pi.X() >> pi.Y() >> pi.Z();
msf >> hi;
lochfunc->SetH (pi, hi);
}
}
}
*/
// lochfunc -> Convexify();
// lochfunc -> PrintMemInfo (cout);
}
void Mesh :: CalcLocalHFromPointDistances(double grading)
{
PrintMessage (3, "Calculating local h from point distances");
if (!lochfunc)
{
Point3d pmin, pmax;
GetBox (pmin, pmax);
// SetLocalH (pmin, pmax, mparam.grading);
SetLocalH (pmin, pmax, grading);
}
PointIndex i,j;
double hl;
for (i = PointIndex::BASE;
i < GetNP()+PointIndex::BASE; i++)
{
for(j=i+1; j<GetNP()+PointIndex::BASE; j++)
{
const Point3d & p1 = points[i];
const Point3d & p2 = points[j];
hl = Dist(p1,p2);
RestrictLocalH(p1,hl);
RestrictLocalH(p2,hl);
//cout << "restricted h at " << p1 << " and " << p2 << " to " << hl << endl;
}
}
}
void Mesh :: CalcLocalHFromSurfaceCurvature (double grading, double elperr)
{
PrintMessage (3, "Calculating local h from surface curvature");
if (!lochfunc)
{
Point3d pmin, pmax;
GetBox (pmin, pmax);
// SetLocalH (pmin, pmax, mparam.grading);
SetLocalH (pmin, pmax, grading);
}
INDEX_2_HASHTABLE<int> edges(3 * GetNP() + 2);
INDEX_2_HASHTABLE<int> bedges(GetNSeg() + 2);
int i, j;
for (i = 1; i <= GetNSeg(); i++)
{
const Segment & seg = LineSegment(i);
INDEX_2 i2(seg[0], seg[1]);
i2.Sort();
bedges.Set (i2, 1);
}
for (i = 1; i <= GetNSE(); i++)
{
const Element2d & sel = SurfaceElement(i);
if (!sel.PNum(1))
continue;
for (j = 1; j <= 3; j++)
{
INDEX_2 i2(sel.PNumMod(j), sel.PNumMod(j+1));
i2.Sort();
if (bedges.Used(i2)) continue;
if (edges.Used(i2))
{
int other = edges.Get(i2);
const Element2d & elother = SurfaceElement(other);
int pi3 = 1;
while ( (sel.PNum(pi3) == i2.I1()) ||
(sel.PNum(pi3) == i2.I2()))
pi3++;
pi3 = sel.PNum(pi3);
int pi4 = 1;
while ( (elother.PNum(pi4) == i2.I1()) ||
(elother.PNum(pi4) == i2.I2()))
pi4++;
pi4 = elother.PNum(pi4);
double rad = ComputeCylinderRadius (Point (i2.I1()),
Point (i2.I2()),
Point (pi3),
Point (pi4));
RestrictLocalHLine (Point(i2.I1()), Point(i2.I2()), rad/elperr);
/*
(*testout) << "pi1,2, 3, 4 = " << i2.I1() << ", " << i2.I2() << ", " << pi3 << ", " << pi4
<< " p1 = " << Point(i2.I1())
<< ", p2 = " << Point(i2.I2())
// << ", p3 = " << Point(pi3)
// << ", p4 = " << Point(pi4)
<< ", rad = " << rad << endl;
*/
}
else
edges.Set (i2, i);
}
}
// Restrict h due to line segments
for (i = 1; i <= GetNSeg(); i++)
{
const Segment & seg = LineSegment(i);
const Point3d & p1 = Point(seg[0]);
const Point3d & p2 = Point(seg[1]);
RestrictLocalH (Center (p1, p2), Dist (p1, p2));
}
/*
int i, j;
int np = GetNP();
int nseg = GetNSeg();
int nse = GetNSE();
Array<Vec3d> normals(np);
BitArray linepoint(np);
linepoint.Clear();
for (i = 1; i <= nseg; i++)
{
linepoint.Set (LineSegment(i)[0]);
linepoint.Set (LineSegment(i)[1]);
}
for (i = 1; i <= np; i++)
normals.Elem(i) = Vec3d(0,0,0);
for (i = 1; i <= nse; i++)
{
Element2d & el = SurfaceElement(i);
Vec3d nf = Cross (Vec3d (Point (el.PNum(1)), Point(el.PNum(2))),
Vec3d (Point (el.PNum(1)), Point(el.PNum(3))));
for (j = 1; j <= 3; j++)
normals.Elem(el.PNum(j)) += nf;
}
for (i = 1; i <= np; i++)
normals.Elem(i) /= (1e-12 + normals.Elem(i).Length());
for (i = 1; i <= nse; i++)
{
Element2d & el = SurfaceElement(i);
Vec3d nf = Cross (Vec3d (Point (el.PNum(1)), Point(el.PNum(2))),
Vec3d (Point (el.PNum(1)), Point(el.PNum(3))));
nf /= nf.Length();
Point3d c = Center (Point(el.PNum(1)),
Point(el.PNum(2)),
Point(el.PNum(3)));
for (j = 1; j <= 3; j++)
{
if (!linepoint.Test (el.PNum(j)))
{
double dist = Dist (c, Point(el.PNum(j)));
double dn = (nf - normals.Get(el.PNum(j))).Length();
RestrictLocalH (Point(el.PNum(j)), dist / (dn+1e-12) /elperr);
}
}
}
*/
}
void Mesh :: RestrictLocalH (resthtype rht, int nr, double loch)
{
int i;
switch (rht)
{
case RESTRICTH_FACE:
{
for (i = 1; i <= GetNSE(); i++)
{
const Element2d & sel = SurfaceElement(i);
if (sel.GetIndex() == nr)
RestrictLocalH (RESTRICTH_SURFACEELEMENT, i, loch);
}
break;
}
case RESTRICTH_EDGE:
{
for (i = 1; i <= GetNSeg(); i++)
{
const Segment & seg = LineSegment(i);
if (seg.edgenr == nr)
RestrictLocalH (RESTRICTH_SEGMENT, i, loch);
}
break;
}
case RESTRICTH_POINT:
{
RestrictLocalH (Point (nr), loch);
break;
}
case RESTRICTH_SURFACEELEMENT:
{
const Element2d & sel = SurfaceElement(nr);
Point3d p = Center (Point(sel.PNum(1)),
Point(sel.PNum(2)),
Point(sel.PNum(3)));
RestrictLocalH (p, loch);
break;
}
case RESTRICTH_SEGMENT:
{
const Segment & seg = LineSegment(nr);
RestrictLocalHLine (Point (seg[0]), Point(seg[1]), loch);
break;
}
}
}
void Mesh :: LoadLocalMeshSize (const string & meshsizefilename)
{
// Philippose - 10/03/2009
// Improve error checking when loading and reading
// the local mesh size file
if (meshsizefilename.empty()) return;
ifstream msf(meshsizefilename.c_str());
// Philippose - 09/03/2009
// Adding print message information in case the specified
// does not exist, or does not load successfully due to
// other reasons such as access rights, etc...
if (!msf)
{
PrintMessage(3, "Error loading mesh size file: ", meshsizefilename, "....","Skipping!");
return;
}
PrintMessage (3, "Load local mesh-size file: ", meshsizefilename);
int nmsp = 0;
int nmsl = 0;
msf >> nmsp;
if(!msf.good())
throw NgException ("Mesh-size file error: No points found\n");
if(nmsp > 0)
PrintMessage (4, "Number of mesh-size restriction points: ", nmsp);
for (int i = 0; i < nmsp; i++)
{
Point3d pi;
double hi;
msf >> pi.X() >> pi.Y() >> pi.Z();
msf >> hi;
if (!msf.good())
throw NgException ("Mesh-size file error: Number of points don't match specified list size\n");
RestrictLocalH (pi, hi);
}
msf >> nmsl;
if(!msf.good())
throw NgException ("Mesh-size file error: No line definitions found\n");
if(nmsl > 0)
PrintMessage (4, "Number of mesh-size restriction lines: ", nmsl);
for (int i = 0; i < nmsl; i++)
{
Point3d p1, p2;
double hi;
msf >> p1.X() >> p1.Y() >> p1.Z();
msf >> p2.X() >> p2.Y() >> p2.Z();
msf >> hi;
if (!msf.good())
throw NgException ("Mesh-size file error: Number of line definitions don't match specified list size\n");
RestrictLocalHLine (p1, p2, hi);
}
msf.close();
}
void Mesh :: GetBox (Point3d & pmin, Point3d & pmax, int dom) const
{
if (points.Size() == 0)
{
pmin = pmax = Point3d(0,0,0);
return;
}
if (dom <= 0)
{
pmin = Point3d (1e10, 1e10, 1e10);
pmax = Point3d (-1e10, -1e10, -1e10);
for (PointIndex pi = points.Begin(); pi < points.End(); pi++)
{
pmin.SetToMin ( (*this) [pi] );
pmax.SetToMax ( (*this) [pi] );
}
}
else
{
int j, nse = GetNSE();
SurfaceElementIndex sei;
pmin = Point3d (1e10, 1e10, 1e10);
pmax = Point3d (-1e10, -1e10, -1e10);
for (sei = 0; sei < nse; sei++)
{
const Element2d & el = (*this)[sei];
if (el.IsDeleted() ) continue;
if (dom == -1 || el.GetIndex() == dom)
{
for (j = 0; j < 3; j++)
{
pmin.SetToMin ( (*this) [el[j]] );
pmax.SetToMax ( (*this) [el[j]] );
}
}
}
}
if (pmin.X() > 0.5e10)
{
pmin = pmax = Point3d(0,0,0);
}
}
void Mesh :: GetBox (Point3d & pmin, Point3d & pmax, POINTTYPE ptyp) const
{
if (points.Size() == 0)
{
pmin = pmax = Point3d(0,0,0);
return;
}
pmin = Point3d (1e10, 1e10, 1e10);
pmax = Point3d (-1e10, -1e10, -1e10);
for (PointIndex pi = points.Begin(); pi < points.End(); pi++)
if (points[pi].Type() <= ptyp)
{
pmin.SetToMin ( (*this) [pi] );
pmax.SetToMax ( (*this) [pi] );
}
}
double Mesh :: ElementError (int eli, const MeshingParameters & mp) const
{
const Element & el = volelements.Get(eli);
return CalcTetBadness (points.Get(el[0]), points.Get(el[1]),
points.Get(el[2]), points.Get(el[3]), -1, mp);
}
void Mesh :: AddLockedPoint (PointIndex pi)
{
lockedpoints.Append (pi);
}
void Mesh :: ClearLockedPoints ()
{
lockedpoints.SetSize (0);
}
void Mesh :: Compress ()
{
Array<PointIndex,PointIndex::BASE,PointIndex> op2np(GetNP());
Array<MeshPoint> hpoints;
BitArrayChar<PointIndex::BASE> pused(GetNP());
/*
(*testout) << "volels: " << endl;
for (i = 1; i <= volelements.Size(); i++)
{
for (j = 1; j <= volelements.Get(i).GetNP(); j++)
(*testout) << volelements.Get(i).PNum(j) << " ";
(*testout) << endl;
}
(*testout) << "np: " << GetNP() << endl;
*/
for (int i = 0; i < volelements.Size(); i++)
if (volelements[i][0] <= PointIndex::BASE-1 ||
volelements[i].IsDeleted())
{
volelements.Delete(i);
i--;
}
for (int i = 0; i < surfelements.Size(); i++)
if (surfelements[i].IsDeleted())
{
surfelements.Delete(i);
i--;
}
for (int i = 0; i < segments.Size(); i++)
if (segments[i][0] <= PointIndex::BASE-1)
{
segments.Delete(i);
i--;
}
pused.Clear();
for (int i = 0; i < volelements.Size(); i++)
{
const Element & el = volelements[i];
for (int j = 0; j < el.GetNP(); j++)
pused.Set (el[j]);
}
for (int i = 0; i < surfelements.Size(); i++)
{
const Element2d & el = surfelements[i];
for (int j = 0; j < el.GetNP(); j++)
pused.Set (el[j]);
}
for (int i = 0; i < segments.Size(); i++)
{
const Segment & seg = segments[i];
pused.Set (seg[0]);
pused.Set (seg[1]);
}
for (int i = 0; i < openelements.Size(); i++)
{
const Element2d & el = openelements[i];
for (int j = 0; j < el.GetNP(); j++)
pused.Set(el[j]);
}
for (int i = 0; i < lockedpoints.Size(); i++)
pused.Set (lockedpoints[i]);
/*
// compress points doesnt work for identified points !
if (identifiedpoints)
{
for (i = 1; i <= identifiedpoints->GetNBags(); i++)
if (identifiedpoints->GetBagSize(i))
{
pused.Set ();
break;
}
}
*/
// pused.Set();
int npi = PointIndex::BASE-1;
for (PointIndex pi = points.Begin(); pi < points.End(); pi++)
if (pused.Test(pi))
{
npi++;
op2np[pi] = npi;
hpoints.Append (points[pi]);
}
else
op2np[pi] = -1;
points.SetSize(0);
for (int i = 0; i < hpoints.Size(); i++)
points.Append (hpoints[i]);
for (int i = 1; i <= volelements.Size(); i++)
{
Element & el = VolumeElement(i);
for (int j = 0; j < el.GetNP(); j++)
el[j] = op2np[el[j]];
}
for (int i = 1; i <= surfelements.Size(); i++)
{
Element2d & el = SurfaceElement(i);
for (int j = 0; j < el.GetNP(); j++)
el[j] = op2np[el[j]];
}
for (int i = 0; i < segments.Size(); i++)
{
Segment & seg = segments[i];
seg[0] = op2np[seg[0]];
seg[1] = op2np[seg[1]];
}
for (int i = 1; i <= openelements.Size(); i++)
{
Element2d & el = openelements.Elem(i);
for (int j = 0; j < el.GetNP(); j++)
el[j] = op2np[el[j]];
}
for (int i = 0; i < lockedpoints.Size(); i++)
lockedpoints[i] = op2np[lockedpoints[i]];
for (int i = 0; i < facedecoding.Size(); i++)
facedecoding[i].firstelement = -1;
for (int i = surfelements.Size()-1; i >= 0; i--)
{
int ind = surfelements[i].GetIndex();
surfelements[i].next = facedecoding[ind-1].firstelement;
facedecoding[ind-1].firstelement = i;
}
CalcSurfacesOfNode();
// FindOpenElements();
timestamp = NextTimeStamp();
}
int Mesh :: CheckConsistentBoundary () const
{
int nf = GetNOpenElements();
INDEX_2_HASHTABLE<int> edges(nf+2);
INDEX_2 i2, i2s, edge;
int err = 0;
for (int i = 1; i <= nf; i++)
{
const Element2d & sel = OpenElement(i);
for (int j = 1; j <= sel.GetNP(); j++)
{
i2.I1() = sel.PNumMod(j);
i2.I2() = sel.PNumMod(j+1);
int sign = (i2.I2() > i2.I1()) ? 1 : -1;
i2.Sort();
if (!edges.Used (i2))
edges.Set (i2, 0);
edges.Set (i2, edges.Get(i2) + sign);
}
}
for (int i = 1; i <= edges.GetNBags(); i++)
for (int j = 1; j <= edges.GetBagSize(i); j++)
{
int cnt = 0;
edges.GetData (i, j, i2, cnt);
if (cnt)
{
PrintError ("Edge ", i2.I1() , " - ", i2.I2(), " multiple times in surface mesh");
(*testout) << "Edge " << i2 << " multiple times in surface mesh" << endl;
i2s = i2;
i2s.Sort();
for (int k = 1; k <= nf; k++)
{
const Element2d & sel = OpenElement(k);
for (int l = 1; l <= sel.GetNP(); l++)
{
edge.I1() = sel.PNumMod(l);
edge.I2() = sel.PNumMod(l+1);
edge.Sort();
if (edge == i2s)
(*testout) << "edge of element " << sel << endl;
}
}
err = 2;
}
}
return err;
}
int Mesh :: CheckOverlappingBoundary ()
{
int i, j, k;
Point3d pmin, pmax;
GetBox (pmin, pmax);
Box3dTree setree(pmin, pmax);
Array<int> inters;
bool overlap = 0;
bool incons_layers = 0;
for (i = 1; i <= GetNSE(); i++)
SurfaceElement(i).badel = 0;
for (i = 1; i <= GetNSE(); i++)
{
const Element2d & tri = SurfaceElement(i);
Point3d tpmin (Point(tri[0]));
Point3d tpmax (tpmin);
for (k = 1; k < tri.GetNP(); k++)
{
tpmin.SetToMin (Point (tri[k]));
tpmax.SetToMax (Point (tri[k]));
}
Vec3d diag(tpmin, tpmax);
tpmax = tpmax + 0.1 * diag;
tpmin = tpmin - 0.1 * diag;
setree.Insert (tpmin, tpmax, i);
}
for (i = 1; i <= GetNSE(); i++)
{
const Element2d & tri = SurfaceElement(i);
Point3d tpmin (Point(tri[0]));
Point3d tpmax (tpmin);
for (k = 1; k < tri.GetNP(); k++)
{
tpmin.SetToMin (Point (tri[k]));
tpmax.SetToMax (Point (tri[k]));
}
setree.GetIntersecting (tpmin, tpmax, inters);
for (j = 1; j <= inters.Size(); j++)
{
const Element2d & tri2 = SurfaceElement(inters.Get(j));
if ( (*this)[tri[0]].GetLayer() != (*this)[tri2[0]].GetLayer())
continue;
if ( (*this)[tri[0]].GetLayer() != (*this)[tri[1]].GetLayer() ||
(*this)[tri[0]].GetLayer() != (*this)[tri[2]].GetLayer())
{
incons_layers = 1;
cout << "inconsistent layers in triangle" << endl;
}
const netgen::Point<3> *trip1[3], *trip2[3];
for (k = 1; k <= 3; k++)
{
trip1[k-1] = &Point (tri.PNum(k));
trip2[k-1] = &Point (tri2.PNum(k));
}
if (IntersectTriangleTriangle (&trip1[0], &trip2[0]))
{
overlap = 1;
PrintWarning ("Intersecting elements "
,i, " and ", inters.Get(j));
(*testout) << "Intersecting: " << endl;
(*testout) << "openelement " << i << " with open element " << inters.Get(j) << endl;
cout << "el1 = " << tri << endl;
cout << "el2 = " << tri2 << endl;
cout << "layer1 = " << (*this)[tri[0]].GetLayer() << endl;
cout << "layer2 = " << (*this)[tri2[0]].GetLayer() << endl;
for (k = 1; k <= 3; k++)
(*testout) << tri.PNum(k) << " ";
(*testout) << endl;
for (k = 1; k <= 3; k++)
(*testout) << tri2.PNum(k) << " ";
(*testout) << endl;
for (k = 0; k <= 2; k++)
(*testout) << *trip1[k] << " ";
(*testout) << endl;
for (k = 0; k <= 2; k++)
(*testout) << *trip2[k] << " ";
(*testout) << endl;
(*testout) << "Face1 = " << GetFaceDescriptor(tri.GetIndex()) << endl;
(*testout) << "Face1 = " << GetFaceDescriptor(tri2.GetIndex()) << endl;
/*
INDEX_3 i3(tri.PNum(1), tri.PNum(2), tri.PNum(3));
i3.Sort();
for (k = 1; k <= GetNSE(); k++)
{
const Element2d & el2 = SurfaceElement(k);
INDEX_3 i3b(el2.PNum(1), el2.PNum(2), el2.PNum(3));
i3b.Sort();
if (i3 == i3b)
{
SurfaceElement(k).badel = 1;
}
}
*/
SurfaceElement(i).badel = 1;
SurfaceElement(inters.Get(j)).badel = 1;
}
}
}
// bug 'fix'
if (incons_layers) overlap = 0;
return overlap;
}
int Mesh :: CheckVolumeMesh () const
{
PrintMessage (3, "Checking volume mesh");
int ne = GetNE();
DenseMatrix dtrans(3,3);
int i, j;
PrintMessage (5, "elements: ", ne);
for (i = 1; i <= ne; i++)
{
Element & el = (Element&) VolumeElement(i);
el.flags.badel = 0;
int nip = el.GetNIP();
for (j = 1; j <= nip; j++)
{
el.GetTransformation (j, Points(), dtrans);
double det = dtrans.Det();
if (det > 0)
{
PrintError ("Element ", i , " has wrong orientation");
el.flags.badel = 1;
}
}
}
return 0;
}
bool Mesh :: LegalTrig (const Element2d & el) const
{
return 1;
if ( /* hp */ 1) // needed for old, simple hp-refinement
{
// trigs with 2 or more segments are illegal
int i;
int nseg = 0;
if (!segmentht)
{
cerr << "no segmentht allocated" << endl;
return 0;
}
// Point3d cp(0.5, 0.5, 0.5);
for (i = 1; i <= 3; i++)
{
INDEX_2 i2(el.PNumMod (i), el.PNumMod (i+1));
i2.Sort();
if (segmentht -> Used (i2))
nseg++;
}
if (nseg >= 2)
return 0;
}
return 1;
}
///
bool Mesh :: LegalTet2 (Element & el) const
{
// static int timer1 = NgProfiler::CreateTimer ("Legaltet2");
// Test, whether 4 points have a common surface plus
// at least 4 edges at the boundary
if(!boundaryedges)
const_cast<Mesh *>(this)->BuildBoundaryEdges();
// non-tets are always legal
if (el.GetType() != TET)
{
el.SetLegal (1);
return 1;
}
POINTTYPE pointtype[4];
for(int i = 0; i < 4; i++)
pointtype[i] = (*this)[el[i]].Type();
// element has at least 2 inner points ---> legal
int cnti = 0;
for (int j = 0; j < 4; j++)
if ( pointtype[j] == INNERPOINT)
{
cnti++;
if (cnti >= 2)
{
el.SetLegal (1);
return 1;
}
}
// which faces are boundary faces ?
int bface[4];
for (int i = 0; i < 4; i++)
{
bface[i] = surfelementht->Used (INDEX_3::Sort(el[gftetfacesa[i][0]],
el[gftetfacesa[i][1]],
el[gftetfacesa[i][2]]));
}
int bedge[4][4];
int segedge[4][4];
static const int pi3map[4][4] = { { -1, 2, 1, 1 },
{ 2, -1, 0, 0 },
{ 1, 0, -1, 0 },
{ 1, 0, 0, -1 } };
static const int pi4map[4][4] = { { -1, 3, 3, 2 },
{ 3, -1, 3, 2 },
{ 3, 3, -1, 1 },
{ 2, 2, 1, -1 } };
for (int i = 0; i < 4; i++)
for (int j = 0; j < i; j++)
{
bool sege = false, be = false;
int pos = boundaryedges -> Position(INDEX_2::Sort(el[i], el[j]));
if (pos)
{
be = true;
if (boundaryedges -> GetData(pos) == 2)
sege = true;
}
segedge[j][i] = segedge[i][j] = sege;
bedge[j][i] = bedge[i][j] = be;
}
// two boundary faces and no edge is illegal
for (int i = 0; i < 3; i++)
for (int j = i+1; j < 4; j++)
{
if (bface[i] && bface[j])
if (!segedge[pi3map[i][j]][pi4map[i][j]])
{
// 2 boundary faces withoud edge in between
el.SetLegal (0);
return 0;
}
}
// three boundary edges meeting in a Surface point
for (int i = 0; i < 4; i++)
{
if ( pointtype[i] == SURFACEPOINT)
{
bool alledges = 1;
for (int j = 0; j < 4; j++)
if (j != i && !bedge[i][j])
{
alledges = 0;
break;
}
if (alledges)
{
// cout << "tet illegal due to unmarked node" << endl;
el.SetLegal (0);
return 0;
}
}
}
for (int fnr = 0; fnr < 4; fnr++)
if (!bface[fnr])
for (int i = 0; i < 4; i++)
if (i != fnr)
{
int pi1 = pi3map[i][fnr];
int pi2 = pi4map[i][fnr];
if ( pointtype[i] == SURFACEPOINT)
{
// two connected edges on surface, but no face
if (bedge[i][pi1] && bedge[i][pi2])
{
el.SetLegal (0);
return 0;
}
}
if ( pointtype[i] == EDGEPOINT)
{
// connected surface edge and edge edge, but no face
if ( (bedge[i][pi1] && segedge[i][pi2]) ||
(bedge[i][pi2] && segedge[i][pi1]) )
{
el.SetLegal (0);
return 0;
}
}
}
el.SetLegal (1);
return 1;
}
int Mesh :: GetNDomains() const
{
int ndom = 0;
for (int k = 0; k < facedecoding.Size(); k++)
{
if (facedecoding[k].DomainIn() > ndom)
ndom = facedecoding[k].DomainIn();
if (facedecoding[k].DomainOut() > ndom)
ndom = facedecoding[k].DomainOut();
}
return ndom;
}
void Mesh :: SurfaceMeshOrientation ()
{
int i, j;
int nse = GetNSE();
BitArray used(nse);
used.Clear();
INDEX_2_HASHTABLE<int> edges(nse+1);
bool haschanged = 0;
const Element2d & tri = SurfaceElement(1);
for (j = 1; j <= 3; j++)
{
INDEX_2 i2(tri.PNumMod(j), tri.PNumMod(j+1));
edges.Set (i2, 1);
}
used.Set(1);
bool unused;
do
{
bool changed;
do
{
changed = 0;
for (i = 1; i <= nse; i++)
if (!used.Test(i))
{
Element2d & el = surfelements.Elem(i);
int found = 0, foundrev = 0;
for (j = 1; j <= 3; j++)
{
INDEX_2 i2(el.PNumMod(j), el.PNumMod(j+1));
if (edges.Used(i2))
foundrev = 1;
swap (i2.I1(), i2.I2());
if (edges.Used(i2))
found = 1;
}
if (found || foundrev)
{
if (foundrev)
swap (el.PNum(2), el.PNum(3));
changed = 1;
for (j = 1; j <= 3; j++)
{
INDEX_2 i2(el.PNumMod(j), el.PNumMod(j+1));
edges.Set (i2, 1);
}
used.Set (i);
}
}
if (changed)
haschanged = 1;
}
while (changed);
unused = 0;
for (i = 1; i <= nse; i++)
if (!used.Test(i))
{
unused = 1;
const Element2d & tri = SurfaceElement(i);
for (j = 1; j <= 3; j++)
{
INDEX_2 i2(tri.PNumMod(j), tri.PNumMod(j+1));
edges.Set (i2, 1);
}
used.Set(i);
break;
}
}
while (unused);
if (haschanged)
timestamp = NextTimeStamp();
}
void Mesh :: Split2Tets()
{
PrintMessage (1, "Split To Tets");
bool has_prisms = 0;
int oldne = GetNE();
for (int i = 1; i <= oldne; i++)
{
Element el = VolumeElement(i);
if (el.GetType() == PRISM)
{
// prism, to 3 tets
// make minimal node to node 1
int minpi=0;
PointIndex minpnum;
minpnum = GetNP() + 1;
for (int j = 1; j <= 6; j++)
{
if (el.PNum(j) < minpnum)
{
minpnum = el.PNum(j);
minpi = j;
}
}
if (minpi >= 4)
{
for (int j = 1; j <= 3; j++)
swap (el.PNum(j), el.PNum(j+3));
minpi -= 3;
}
while (minpi > 1)
{
int hi = 0;
for (int j = 0; j <= 3; j+= 3)
{
hi = el.PNum(1+j);
el.PNum(1+j) = el.PNum(2+j);
el.PNum(2+j) = el.PNum(3+j);
el.PNum(3+j) = hi;
}
minpi--;
}
/*
version 1: edge from pi2 to pi6,
version 2: edge from pi3 to pi5,
*/
static const int ntets[2][12] =
{ { 1, 4, 5, 6, 1, 2, 3, 6, 1, 2, 5, 6 },
{ 1, 4, 5, 6, 1, 2, 3, 5, 3, 1, 5, 6 } };
const int * min2pi;
if (min2 (el.PNum(2), el.PNum(6)) <
min2 (el.PNum(3), el.PNum(5)))
{
min2pi = &ntets[0][0];
// (*testout) << "version 1 ";
}
else
{
min2pi = &ntets[1][0];
// (*testout) << "version 2 ";
}
int firsttet = 1;
for (int j = 1; j <= 3; j++)
{
Element nel(TET);
for (int k = 1; k <= 4; k++)
nel.PNum(k) = el.PNum(min2pi[4 * j + k - 5]);
nel.SetIndex (el.GetIndex());
int legal = 1;
for (int k = 1; k <= 3; k++)
for (int l = k+1; l <= 4; l++)
if (nel.PNum(k) == nel.PNum(l))
legal = 0;
// (*testout) << nel << " ";
if (legal)
{
if (firsttet)
{
VolumeElement(i) = nel;
firsttet = 0;
}
else
{
AddVolumeElement(nel);
}
}
}
if (firsttet) cout << "no legal";
(*testout) << endl;
}
else if (el.GetType() == HEX)
{
// hex to A) 2 prisms or B) to 5 tets
// make minimal node to node 1
int minpi=0;
PointIndex minpnum;
minpnum = GetNP() + 1;
for (int j = 1; j <= 8; j++)
{
if (el.PNum(j) < minpnum)
{
minpnum = el.PNum(j);
minpi = j;
}
}
if (minpi >= 5)
{
for (int j = 1; j <= 4; j++)
swap (el.PNum(j), el.PNum(j+4));
minpi -= 4;
}
while (minpi > 1)
{
int hi = 0;
for (int j = 0; j <= 4; j+= 4)
{
hi = el.PNum(1+j);
el.PNum(1+j) = el.PNum(2+j);
el.PNum(2+j) = el.PNum(3+j);
el.PNum(3+j) = el.PNum(4+j);
el.PNum(4+j) = hi;
}
minpi--;
}
static const int to_prisms[3][12] =
{ { 0, 1, 2, 4, 5, 6, 0, 2, 3, 4, 6, 7 },
{ 0, 1, 5, 3, 2, 6, 0, 5, 4, 3, 6, 7 },
{ 0, 7, 4, 1, 6, 5, 0, 3, 7, 1, 2, 6 },
};
const int * min2pi = 0;
if (min2 (el[4], el[6]) < min2 (el[5], el[7]))
min2pi = &to_prisms[0][0];
else if (min2 (el[3], el[6]) < min2 (el[2], el[7]))
min2pi = &to_prisms[1][0];
else if (min2 (el[1], el[6]) < min2 (el[2], el[5]))
min2pi = &to_prisms[2][0];
if (min2pi)
{
has_prisms = 1;
for (int j = 0; j < 2; j++)
{
Element nel(PRISM);
for (int k = 0; k < 6; k++)
nel[k] = el[min2pi[6*j + k]];
nel.SetIndex (el.GetIndex());
if (j == 0)
VolumeElement(i) = nel;
else
AddVolumeElement(nel);
}
}
else
{
// split to 5 tets
static const int to_tets[20] =
{
1, 2, 0, 5,
3, 0, 2, 7,
4, 5, 7, 0,
6, 7, 5, 2,
0, 2, 7, 5
};
for (int j = 0; j < 5; j++)
{
Element nel(TET);
for (int k = 0; k < 4; k++)
nel[k] = el[to_tets[4*j + k]];
nel.SetIndex (el.GetIndex());
if (j == 0)
VolumeElement(i) = nel;
else
AddVolumeElement(nel);
}
}
}
else if (el.GetType() == PYRAMID)
{
// pyramid, to 2 tets
// cout << "pyramid: " << el << endl;
static const int ntets[2][8] =
{ { 1, 2, 3, 5, 1, 3, 4, 5 },
{ 1, 2, 4, 5, 4, 2, 3, 5 }};
const int * min2pi;
if (min2 (el[0], el[2]) < min2 (el[1], el[3]))
min2pi = &ntets[0][0];
else
min2pi = &ntets[1][0];
bool firsttet = 1;
for (int j = 0; j < 2; j++)
{
Element nel(TET);
for (int k = 0; k < 4; k++)
nel[k] = el[min2pi[4*j + k]-1];
nel.SetIndex (el.GetIndex());
// cout << "pyramid-tet: " << nel << endl;
bool legal = 1;
for (int k = 0; k < 3; k++)
for (int l = k+1; l < 4; l++)
if (nel[k] == nel[l])
legal = 0;
if (legal)
{
(*testout) << nel << " ";
if (firsttet)
VolumeElement(i) = nel;
else
AddVolumeElement(nel);
firsttet = 0;
}
}
if (firsttet) cout << "no legal";
(*testout) << endl;
}
}
int oldnse = GetNSE();
for (int i = 1; i <= oldnse; i++)
{
Element2d el = SurfaceElement(i);
if (el.GetNP() == 4)
{
(*testout) << "split el: " << el << " to ";
static const int ntris[2][6] =
{ { 1, 2, 3, 1, 3, 4 },
{ 1, 2, 4, 4, 2, 3 }};
const int * min2pi;
if (min2 (el.PNum(1), el.PNum(3)) <
min2 (el.PNum(2), el.PNum(4)))
min2pi = &ntris[0][0];
else
min2pi = &ntris[1][0];
for (int j = 0; j <6; j++)
(*testout) << min2pi[j] << " ";
int firsttri = 1;
for (int j = 1; j <= 2; j++)
{
Element2d nel(3);
for (int k = 1; k <= 3; k++)
nel.PNum(k) = el.PNum(min2pi[3 * j + k - 4]);
nel.SetIndex (el.GetIndex());
int legal = 1;
for (int k = 1; k <= 2; k++)
for (int l = k+1; l <= 3; l++)
if (nel.PNum(k) == nel.PNum(l))
legal = 0;
if (legal)
{
(*testout) << nel << " ";
if (firsttri)
{
SurfaceElement(i) = nel;
firsttri = 0;
}
else
{
AddSurfaceElement(nel);
}
}
}
(*testout) << endl;
}
}
if (has_prisms)
Split2Tets();
else
{
for (int i = 1; i <= GetNE(); i++)
{
Element & el = VolumeElement(i);
const Point3d & p1 = Point (el.PNum(1));
const Point3d & p2 = Point (el.PNum(2));
const Point3d & p3 = Point (el.PNum(3));
const Point3d & p4 = Point (el.PNum(4));
double vol = (Vec3d (p1, p2) *
Cross (Vec3d (p1, p3), Vec3d(p1, p4)));
if (vol > 0)
swap (el.PNum(3), el.PNum(4));
}
UpdateTopology();
timestamp = NextTimeStamp();
}
}
void Mesh :: BuildElementSearchTree ()
{
if (elementsearchtreets == GetTimeStamp()) return;
#pragma omp critical (buildsearchtree)
{
if (elementsearchtreets != GetTimeStamp())
{
NgLock lock(mutex);
lock.Lock();
PrintMessage (4, "Rebuild element searchtree");
delete elementsearchtree;
elementsearchtree = NULL;
int ne = (dimension == 2) ? GetNSE() : GetNE();
if (ne)
{
if (dimension == 2)
{
Box<3> box (Box<3>::EMPTY_BOX);
for (SurfaceElementIndex sei = 0; sei < ne; sei++)
box.Add (points[surfelements[sei].PNums()]);
box.Increase (1.01 * box.Diam());
elementsearchtree = new Box3dTree (box);
for (SurfaceElementIndex sei = 0; sei < ne; sei++)
{
box.Set (points[surfelements[sei].PNums()]);
elementsearchtree -> Insert (box, sei+1);
}
}
else
{
Box<3> box (Box<3>::EMPTY_BOX);
for (ElementIndex ei = 0; ei < ne; ei++)
box.Add (points[volelements[ei].PNums()]);
box.Increase (1.01 * box.Diam());
elementsearchtree = new Box3dTree (box);
for (ElementIndex ei = 0; ei < ne; ei++)
{
box.Set (points[volelements[ei].PNums()]);
elementsearchtree -> Insert (box, ei+1);
}
}
elementsearchtreets = GetTimeStamp();
}
}
}
}
bool Mesh :: PointContainedIn2DElement(const Point3d & p,
double lami[3],
const int element,
bool consider3D) const
{
Vec3d col1, col2, col3;
Vec3d rhs, sol;
const double eps = 1e-6;
Array<Element2d> loctrigs;
//SZ
if(SurfaceElement(element).GetType()==QUAD)
{
const Element2d & el = SurfaceElement(element);
const Point3d & p1 = Point(el.PNum(1));
const Point3d & p2 = Point(el.PNum(2));
const Point3d & p3 = Point(el.PNum(3));
const Point3d & p4 = Point(el.PNum(4));
// Coefficients of Bilinear Mapping from Ref-Elem to global Elem
// X = a + b x + c y + d x y
Vec3d a = p1;
Vec3d b = p2 - a;
Vec3d c = p4 - a;
Vec3d d = p3 - a - b - c;
double dxb = d.X()*b.Y()-d.Y()*b.X();
double dxc = d.X()*c.Y()-d.Y()*c.X();
double dxa = d.X()*a.Y()-d.Y()*a.X();
double dxp = d.X()*p.Y()-d.Y()*p.X();
double c0,c1,c2; // ,rt;
lami[2]=0.;
double eps = 1.E-12;
if(fabs(d.X()) <= eps && fabs(d.Y())<= eps)
{
//Solve Linear System
lami[0]=(c.Y()*(p.X()-a.X())-c.X()*(p.Y()-a.Y()))/
(b.X()*c.Y() -b.Y()*c.X());
lami[1]=(-b.Y()*(p.X()-a.X())+b.X()*(p.Y()-a.Y()))/
(b.X()*c.Y() -b.Y()*c.X());
}
else
if(fabs(dxb) <= eps)
{
lami[1] = (dxp-dxa)/dxc;
if(fabs(b.X()-d.X()*lami[1])>=eps)
lami[0] = (p.X()-a.X() - c.X()*lami[1])/(b.X()+d.X()*lami[1]);
else
lami[0] = (p.Y()-a.Y() - c.Y()*lami[1])/(b.Y()+d.Y()*lami[1]);
}
else
if(fabs(dxc) <= eps)
{
lami[0] = (dxp-dxa)/dxb;
if(fabs(c.X()-d.X()*lami[0])>=eps)
lami[1] = (p.X()-a.X() - b.X()*lami[0])/(c.X()+d.X()*lami[0]);
else
lami[1] = (p.Y()-a.Y() - b.Y()*lami[0])/(c.Y()+d.Y()*lami[0]);
}
else //Solve quadratic equation
{
if(fabs(d.X()) >= eps)
{
c2 = d.X()*dxc;
c1 = d.X()*dxc - c.X()*dxb - d.X()*(dxp-dxa);
c0 = -b.X()*(dxp -dxa) - (a.X()-p.X())*dxb;
}
else
{
c2 = d.Y()*dxc;
c1 = d.Y()*dxc - c.Y()*dxb - d.Y()*(dxp-dxa);
c0 = -b.Y()*(dxp -dxa) - (a.Y()-p.Y())*dxb;
}
double rt = c1*c1 - 4*c2*c0;
if (rt < 0.) return false;
lami[1] = (-c1 + sqrt(rt))/2/c2;
if(lami[1]<=1. && lami[1]>=0.)
{
lami[0] = (dxp - dxa -dxc*lami[1])/dxb;
if(lami[0]<=1. && lami[0]>=0.)
return true;
}
lami[1] = (-c1 - sqrt(rt))/2/c2;
lami[0] = (dxp - dxa -dxc*lami[1])/dxb;
}
if( lami[0] <= 1.+eps && lami[0] >= -eps && lami[1]<=1.+eps && lami[1]>=-eps)
{
if(consider3D)
{
Vec3d n = Cross(b,c);
lami[2] = 0;
for(int i=1; i<=3; i++)
lami[2] +=(p.X(i)-a.X(i)-lami[0]*b.X(i)-lami[1]*c.X(i)) * n.X(i);
if(lami[2] >= -eps && lami[2] <= eps)
return true;
}
else
return true;
}
return false;
}
else
{
// SurfaceElement(element).GetTets (loctets);
loctrigs.SetSize(1);
loctrigs.Elem(1) = SurfaceElement(element);
for (int j = 1; j <= loctrigs.Size(); j++)
{
const Element2d & el = loctrigs.Get(j);
const Point3d & p1 = Point(el.PNum(1));
const Point3d & p2 = Point(el.PNum(2));
const Point3d & p3 = Point(el.PNum(3));
/*
Box3d box;
box.SetPoint (p1);
box.AddPoint (p2);
box.AddPoint (p3);
box.AddPoint (p4);
if (!box.IsIn (p))
continue;
*/
col1 = p2-p1;
col2 = p3-p1;
col3 = Cross(col1,col2);
//col3 = Vec3d(0, 0, 1);
rhs = p - p1;
// int retval =
SolveLinearSystem (col1, col2, col3, rhs, sol);
//(*testout) << "retval " << retval << endl;
//(*testout) << "col1 " << col1 << " col2 " << col2 << " col3 " << col3 << " rhs " << rhs << endl;
//(*testout) << "sol " << sol << endl;
if (sol.X() >= -eps && sol.Y() >= -eps &&
sol.X() + sol.Y() <= 1+eps)
{
if(!consider3D || (sol.Z() >= -eps && sol.Z() <= eps))
{
lami[0] = sol.X();
lami[1] = sol.Y();
lami[2] = sol.Z();
return true;
}
}
}
}
return false;
}
bool Mesh :: PointContainedIn3DElement(const Point3d & p,
double lami[3],
const int element) const
{
//bool oldresult = PointContainedIn3DElementOld(p,lami,element);
//(*testout) << "old result: " << oldresult
// << " lam " << lami[0] << " " << lami[1] << " " << lami[2] << endl;
//if(!curvedelems->IsElementCurved(element-1))
// return PointContainedIn3DElementOld(p,lami,element);
const double eps = 1.e-4;
const Element & el = VolumeElement(element);
netgen::Point<3> lam = 0.0;
if (el.GetType() == TET || el.GetType() == TET10)
{
lam = 0.25;
}
else if (el.GetType() == PRISM)
{
lam(0) = 0.33; lam(1) = 0.33; lam(2) = 0.5;
}
else if (el.GetType() == PYRAMID)
{
lam(0) = 0.4; lam(1) = 0.4; lam(2) = 0.2;
}
else if (el.GetType() == HEX)
{
lam = 0.5;
}
Vec<3> deltalam,rhs;
netgen::Point<3> x;
Mat<3,3> Jac,Jact;
double delta=1;
bool retval;
int i = 0;
const int maxits = 30;
while(delta > 1e-16 && i<maxits)
{
curvedelems->CalcElementTransformation(lam,element-1,x,Jac);
rhs = p-x;
Jac.Solve(rhs,deltalam);
lam += deltalam;
delta = deltalam.Length2();
i++;
//(*testout) << "pcie i " << i << " delta " << delta << " p " << p << " x " << x << " lam " << lam << endl;
//<< "Jac " << Jac << endl;
}
if(i==maxits)
return false;
for(i=0; i<3; i++)
lami[i] = lam(i);
if (el.GetType() == TET || el.GetType() == TET10)
{
retval = (lam(0) > -eps &&
lam(1) > -eps &&
lam(2) > -eps &&
lam(0) + lam(1) + lam(2) < 1+eps);
}
else if (el.GetType() == PRISM)
{
retval = (lam(0) > -eps &&
lam(1) > -eps &&
lam(2) > -eps &&
lam(2) < 1+eps &&
lam(0) + lam(1) < 1+eps);
}
else if (el.GetType() == PYRAMID)
{
retval = (lam(0) > -eps &&
lam(1) > -eps &&
lam(2) > -eps &&
lam(0) + lam(2) < 1+eps &&
lam(1) + lam(2) < 1+eps);
}
else if (el.GetType() == HEX)
{
retval = (lam(0) > -eps && lam(0) < 1+eps &&
lam(1) > -eps && lam(1) < 1+eps &&
lam(2) > -eps && lam(2) < 1+eps);
}
else
throw NgException("Da haun i wos vagessn");
return retval;
}
bool Mesh :: PointContainedIn3DElementOld(const Point3d & p,
double lami[3],
const int element) const
{
Vec3d col1, col2, col3;
Vec3d rhs, sol;
const double eps = 1.e-4;
Array<Element> loctets;
VolumeElement(element).GetTets (loctets);
for (int j = 1; j <= loctets.Size(); j++)
{
const Element & el = loctets.Get(j);
const Point3d & p1 = Point(el.PNum(1));
const Point3d & p2 = Point(el.PNum(2));
const Point3d & p3 = Point(el.PNum(3));
const Point3d & p4 = Point(el.PNum(4));
Box3d box;
box.SetPoint (p1);
box.AddPoint (p2);
box.AddPoint (p3);
box.AddPoint (p4);
if (!box.IsIn (p))
continue;
col1 = p2-p1;
col2 = p3-p1;
col3 = p4-p1;
rhs = p - p1;
SolveLinearSystem (col1, col2, col3, rhs, sol);
if (sol.X() >= -eps && sol.Y() >= -eps && sol.Z() >= -eps &&
sol.X() + sol.Y() + sol.Z() <= 1+eps)
{
Array<Element> loctetsloc;
Array<netgen::Point<3> > pointsloc;
VolumeElement(element).GetTetsLocal (loctetsloc);
VolumeElement(element).GetNodesLocalNew (pointsloc);
const Element & le = loctetsloc.Get(j);
Point3d pp =
pointsloc.Get(le.PNum(1))
+ sol.X() * Vec3d (pointsloc.Get(le.PNum(1)), pointsloc.Get(le.PNum(2)))
+ sol.Y() * Vec3d (pointsloc.Get(le.PNum(1)), pointsloc.Get(le.PNum(3)))
+ sol.Z() * Vec3d (pointsloc.Get(le.PNum(1)), pointsloc.Get(le.PNum(4))) ;
lami[0] = pp.X();
lami[1] = pp.Y();
lami[2] = pp.Z();
return true;
}
}
return false;
}
int Mesh :: GetElementOfPoint (const netgen::Point<3> & p,
double lami[3],
bool build_searchtree,
const int index,
const bool allowindex) const
{
if(index != -1)
{
Array<int> dummy(1);
dummy[0] = index;
return GetElementOfPoint(p,lami,&dummy,build_searchtree,allowindex);
}
else
return GetElementOfPoint(p,lami,NULL,build_searchtree,allowindex);
}
int Mesh :: GetElementOfPoint (const netgen::Point<3> & p,
double lami[3],
const Array<int> * const indices,
bool build_searchtree,
const bool allowindex) const
{
if (dimension == 2)
{
int ne;
if(ps_startelement != 0 && ps_startelement <= GetNSE() && PointContainedIn2DElement(p,lami,ps_startelement))
return ps_startelement;
Array<int> locels;
if (elementsearchtree || build_searchtree)
{
// update if necessary:
const_cast<Mesh&>(*this).BuildElementSearchTree ();
elementsearchtree->GetIntersecting (p, p, locels);
ne = locels.Size();
}
else
ne = GetNSE();
for (int i = 1; i <= ne; i++)
{
int ii;
if (elementsearchtree)
ii = locels.Get(i);
else
ii = i;
if(ii == ps_startelement) continue;
if(indices != NULL && indices->Size() > 0)
{
bool contained = indices->Contains(SurfaceElement(ii).GetIndex());
if((allowindex && !contained) || (!allowindex && contained)) continue;
}
if(PointContainedIn2DElement(p,lami,ii)) return ii;
}
return 0;
}
else
{
// int i, j;
int ne;
if(ps_startelement != 0 && PointContainedIn3DElement(p,lami,ps_startelement))
return ps_startelement;
Array<int> locels;
if (elementsearchtree || build_searchtree)
{
// update if necessary:
const_cast<Mesh&>(*this).BuildElementSearchTree ();
elementsearchtree->GetIntersecting (p, p, locels);
ne = locels.Size();
}
else
ne = GetNE();
for (int i = 1; i <= ne; i++)
{
int ii;
if (elementsearchtree)
ii = locels.Get(i);
else
ii = i;
if(ii == ps_startelement) continue;
if(indices != NULL && indices->Size() > 0)
{
bool contained = indices->Contains(VolumeElement(ii).GetIndex());
if((allowindex && !contained) || (!allowindex && contained)) continue;
}
if(PointContainedIn3DElement(p,lami,ii))
{
ps_startelement = ii;
return ii;
}
}
// Not found, try uncurved variant:
for (int i = 1; i <= ne; i++)
{
int ii;
if (elementsearchtree)
ii = locels.Get(i);
else
ii = i;
if(indices != NULL && indices->Size() > 0)
{
bool contained = indices->Contains(VolumeElement(ii).GetIndex());
if((allowindex && !contained) || (!allowindex && contained)) continue;
}
if(PointContainedIn3DElementOld(p,lami,ii))
{
ps_startelement = ii;
(*testout) << "WARNING: found element of point " << p <<" only for uncurved mesh" << endl;
return ii;
}
}
return 0;
}
}
int Mesh :: GetSurfaceElementOfPoint (const netgen::Point<3> & p,
double lami[3],
bool build_searchtree,
const int index,
const bool allowindex) const
{
if(index != -1)
{
Array<int> dummy(1);
dummy[0] = index;
return GetSurfaceElementOfPoint(p,lami,&dummy,build_searchtree,allowindex);
}
else
return GetSurfaceElementOfPoint(p,lami,NULL,build_searchtree,allowindex);
}
int Mesh :: GetSurfaceElementOfPoint (const netgen::Point<3> & p,
double lami[3],
const Array<int> * const indices,
bool build_searchtree,
const bool allowindex) const
{
if (dimension == 2)
{
throw NgException("GetSurfaceElementOfPoint not yet implemented for 2D meshes");
}
else
{
double vlam[3];
int velement = GetElementOfPoint(p,vlam,NULL,build_searchtree,allowindex);
//(*testout) << "p " << p << endl;
//(*testout) << "velement " << velement << endl;
Array<int> faces;
topology->GetElementFaces(velement,faces);
//(*testout) << "faces " << faces << endl;
for(int i=0; i<faces.Size(); i++)
faces[i] = topology->GetFace2SurfaceElement(faces[i]);
//(*testout) << "surfel " << faces << endl;
for(int i=0; i<faces.Size(); i++)
{
if(faces[i] == 0)
continue;
if(indices && indices->Size() != 0)
{
if(indices->Contains(SurfaceElement(faces[i]).GetIndex()) &&
PointContainedIn2DElement(p,lami,faces[i],true))
return faces[i];
}
else
{
if(PointContainedIn2DElement(p,lami,faces[i],true))
{
//(*testout) << "found point " << p << " in sel " << faces[i]
// << ", lam " << lami[0] << ", " << lami[1] << ", " << lami[2] << endl;
return faces[i];
}
}
}
}
return 0;
}
void Mesh::GetIntersectingVolEls(const Point3d& p1, const Point3d& p2,
Array<int> & locels) const
{
elementsearchtree->GetIntersecting (p1, p2, locels);
}
void Mesh :: SplitIntoParts()
{
int i, j, dom;
int ne = GetNE();
int np = GetNP();
int nse = GetNSE();
BitArray surfused(nse);
BitArray pused (np);
surfused.Clear();
dom = 0;
while (1)
{
int cntd = 1;
dom++;
pused.Clear();
int found = 0;
for (i = 1; i <= nse; i++)
if (!surfused.Test(i))
{
SurfaceElement(i).SetIndex (dom);
for (j = 1; j <= 3; j++)
pused.Set (SurfaceElement(i).PNum(j));
found = 1;
cntd = 1;
surfused.Set(i);
break;
}
if (!found)
break;
int change;
do
{
change = 0;
for (i = 1; i <= nse; i++)
{
int is = 0, isnot = 0;
for (j = 1; j <= 3; j++)
if (pused.Test(SurfaceElement(i).PNum(j)))
is = 1;
else
isnot = 1;
if (is && isnot)
{
change = 1;
for (j = 1; j <= 3; j++)
pused.Set (SurfaceElement(i).PNum(j));
}
if (is)
{
if (!surfused.Test(i))
{
surfused.Set(i);
SurfaceElement(i).SetIndex (dom);
cntd++;
}
}
}
for (i = 1; i <= ne; i++)
{
int is = 0, isnot = 0;
for (j = 1; j <= 4; j++)
if (pused.Test(VolumeElement(i).PNum(j)))
is = 1;
else
isnot = 1;
if (is && isnot)
{
change = 1;
for (j = 1; j <= 4; j++)
pused.Set (VolumeElement(i).PNum(j));
}
if (is)
{
VolumeElement(i).SetIndex (dom);
}
}
}
while (change);
PrintMessage (3, "domain ", dom, " has ", cntd, " surfaceelements");
}
/*
facedecoding.SetSize (dom);
for (i = 1; i <= dom; i++)
{
facedecoding.Elem(i).surfnr = 0;
facedecoding.Elem(i).domin = i;
facedecoding.Elem(i).domout = 0;
}
*/
ClearFaceDescriptors();
for (i = 1; i <= dom; i++)
AddFaceDescriptor (FaceDescriptor (0, i, 0, 0));
CalcSurfacesOfNode();
timestamp = NextTimeStamp();
}
void Mesh :: SplitSeparatedFaces ()
{
PrintMessage (3, "SplitSeparateFaces");
int fdi;
int np = GetNP();
BitArray usedp(np);
Array<SurfaceElementIndex> els_of_face;
fdi = 1;
while (fdi <= GetNFD())
{
GetSurfaceElementsOfFace (fdi, els_of_face);
if (els_of_face.Size() == 0) continue;
SurfaceElementIndex firstel = els_of_face[0];
usedp.Clear();
for (int j = 1; j <= SurfaceElement(firstel).GetNP(); j++)
usedp.Set (SurfaceElement(firstel).PNum(j));
bool changed;
do
{
changed = false;
for (int i = 0; i < els_of_face.Size(); i++)
{
const Element2d & el = SurfaceElement(els_of_face[i]);
bool has = 0;
bool hasno = 0;
for (int j = 0; j < el.GetNP(); j++)
{
if (usedp.Test(el[j]))
has = true;
else
hasno = true;
}
if (has && hasno)
changed = true;
if (has)
for (int j = 0; j < el.GetNP(); j++)
usedp.Set (el[j]);
}
}
while (changed);
int nface = 0;
for (int i = 0; i < els_of_face.Size(); i++)
{
Element2d & el = SurfaceElement(els_of_face[i]);
int hasno = 0;
for (int j = 1; j <= el.GetNP(); j++)
if (!usedp.Test(el.PNum(j)))
hasno = 1;
if (hasno)
{
if (!nface)
{
FaceDescriptor nfd = GetFaceDescriptor(fdi);
nface = AddFaceDescriptor (nfd);
}
el.SetIndex (nface);
}
}
// reconnect list
if (nface)
{
facedecoding[nface-1].firstelement = -1;
facedecoding[fdi-1].firstelement = -1;
for (int i = 0; i < els_of_face.Size(); i++)
{
int ind = SurfaceElement(els_of_face[i]).GetIndex();
SurfaceElement(els_of_face[i]).next = facedecoding[ind-1].firstelement;
facedecoding[ind-1].firstelement = els_of_face[i];
}
}
fdi++;
}
/*
fdi = 1;
while (fdi <= GetNFD())
{
int firstel = 0;
for (int i = 1; i <= GetNSE(); i++)
if (SurfaceElement(i).GetIndex() == fdi)
{
firstel = i;
break;
}
if (!firstel) continue;
usedp.Clear();
for (int j = 1; j <= SurfaceElement(firstel).GetNP(); j++)
usedp.Set (SurfaceElement(firstel).PNum(j));
int changed;
do
{
changed = 0;
for (int i = 1; i <= GetNSE(); i++)
{
const Element2d & el = SurfaceElement(i);
if (el.GetIndex() != fdi)
continue;
int has = 0;
int hasno = 0;
for (int j = 1; j <= el.GetNP(); j++)
{
if (usedp.Test(el.PNum(j)))
has = 1;
else
hasno = 1;
}
if (has && hasno)
changed = 1;
if (has)
for (int j = 1; j <= el.GetNP(); j++)
usedp.Set (el.PNum(j));
}
}
while (changed);
int nface = 0;
for (int i = 1; i <= GetNSE(); i++)
{
Element2d & el = SurfaceElement(i);
if (el.GetIndex() != fdi)
continue;
int hasno = 0;
for (int j = 1; j <= el.GetNP(); j++)
{
if (!usedp.Test(el.PNum(j)))
hasno = 1;
}
if (hasno)
{
if (!nface)
{
FaceDescriptor nfd = GetFaceDescriptor(fdi);
nface = AddFaceDescriptor (nfd);
}
el.SetIndex (nface);
}
}
fdi++;
}
*/
}
void Mesh :: RebuildSurfaceElementLists ()
{
for (int i = 0; i < facedecoding.Size(); i++)
facedecoding[i].firstelement = -1;
for (int i = surfelements.Size()-1; i >= 0; i--)
{
int ind = surfelements[i].GetIndex();
surfelements[i].next = facedecoding[ind-1].firstelement;
facedecoding[ind-1].firstelement = i;
}
}
void Mesh :: GetSurfaceElementsOfFace (int facenr, Array<SurfaceElementIndex> & sei) const
{
static int timer = NgProfiler::CreateTimer ("GetSurfaceElementsOfFace");
NgProfiler::RegionTimer reg (timer);
/*
sei.SetSize (0);
for (SurfaceElementIndex i = 0; i < GetNSE(); i++)
{
if ( (*this)[i].GetIndex () == facenr && (*this)[i][0] >= PointIndex::BASE &&
!(*this)[i].IsDeleted() )
{
sei.Append (i);
}
}
*/
/* Philippose - 01/10/2009
Commented out the following lines, and activated the originally
commented out lines above because of a bug which causes corruption
of the variable "facedecoding" when a mesh is converted to second order
*/
// int size1 = sei.Size();
sei.SetSize(0);
SurfaceElementIndex si = facedecoding[facenr-1].firstelement;
while (si != -1)
{
if ( (*this)[si].GetIndex () == facenr && (*this)[si][0] >= PointIndex::BASE &&
!(*this)[si].IsDeleted() )
{
sei.Append (si);
}
si = (*this)[si].next;
}
/*
// *testout << "with list = " << endl << sei << endl;
if (size1 != sei.Size())
{
cout << "size mismatch" << endl;
exit(1);
}
*/
}
void Mesh :: CalcMinMaxAngle (double badellimit, double * retvalues)
{
int i, j;
int lpi1, lpi2, lpi3, lpi4;
double phimax = 0, phimin = 10;
double facephimax = 0, facephimin = 10;
int illegaltets = 0, negativetets = 0, badtets = 0;
for (i = 1; i <= GetNE(); i++)
{
int badel = 0;
Element & el = VolumeElement(i);
if (el.GetType() != TET)
{
VolumeElement(i).flags.badel = 0;
continue;
}
if (el.Volume(Points()) < 0)
{
badel = 1;
negativetets++;
}
if (!LegalTet (el))
{
badel = 1;
illegaltets++;
(*testout) << "illegal tet: " << i << " ";
for (j = 1; j <= el.GetNP(); j++)
(*testout) << el.PNum(j) << " ";
(*testout) << endl;
}
// angles between faces
for (lpi1 = 1; lpi1 <= 3; lpi1++)
for (lpi2 = lpi1+1; lpi2 <= 4; lpi2++)
{
lpi3 = 1;
while (lpi3 == lpi1 || lpi3 == lpi2)
lpi3++;
lpi4 = 10 - lpi1 - lpi2 - lpi3;
const Point3d & p1 = Point (el.PNum(lpi1));
const Point3d & p2 = Point (el.PNum(lpi2));
const Point3d & p3 = Point (el.PNum(lpi3));
const Point3d & p4 = Point (el.PNum(lpi4));
Vec3d n(p1, p2);
n /= n.Length();
Vec3d v1(p1, p3);
Vec3d v2(p1, p4);
v1 -= (n * v1) * n;
v2 -= (n * v2) * n;
double cosphi = (v1 * v2) / (v1.Length() * v2.Length());
double phi = acos (cosphi);
if (phi > phimax) phimax = phi;
if (phi < phimin) phimin = phi;
if ((180/M_PI) * phi > badellimit)
badel = 1;
}
// angles in faces
for (j = 1; j <= 4; j++)
{
Element2d face;
el.GetFace (j, face);
for (lpi1 = 1; lpi1 <= 3; lpi1++)
{
lpi2 = lpi1 % 3 + 1;
lpi3 = lpi2 % 3 + 1;
const Point3d & p1 = Point (el.PNum(lpi1));
const Point3d & p2 = Point (el.PNum(lpi2));
const Point3d & p3 = Point (el.PNum(lpi3));
Vec3d v1(p1, p2);
Vec3d v2(p1, p3);
double cosphi = (v1 * v2) / (v1.Length() * v2.Length());
double phi = acos (cosphi);
if (phi > facephimax) facephimax = phi;
if (phi < facephimin) facephimin = phi;
if ((180/M_PI) * phi > badellimit)
badel = 1;
}
}
VolumeElement(i).flags.badel = badel;
if (badel) badtets++;
}
if (!GetNE())
{
phimin = phimax = facephimin = facephimax = 0;
}
if (!retvalues)
{
PrintMessage (1, "");
PrintMessage (1, "between planes: phimin = ", (180/M_PI) * phimin,
" phimax = ", (180/M_PI) *phimax);
PrintMessage (1, "inside planes: phimin = ", (180/M_PI) * facephimin,
" phimax = ", (180/M_PI) * facephimax);
PrintMessage (1, "");
}
else
{
retvalues[0] = (180/M_PI) * facephimin;
retvalues[1] = (180/M_PI) * facephimax;
retvalues[2] = (180/M_PI) * phimin;
retvalues[3] = (180/M_PI) * phimax;
}
PrintMessage (3, "negative tets: ", negativetets);
PrintMessage (3, "illegal tets: ", illegaltets);
PrintMessage (3, "bad tets: ", badtets);
}
int Mesh :: MarkIllegalElements ()
{
int cnt = 0;
int i;
for (i = 1; i <= GetNE(); i++)
{
LegalTet (VolumeElement(i));
/*
Element & el = VolumeElement(i);
int leg1 = LegalTet (el);
el.flags.illegal_valid = 0;
int leg2 = LegalTet (el);
if (leg1 != leg2)
{
cerr << "legal differs!!" << endl;
(*testout) << "legal differs" << endl;
(*testout) << "elnr = " << i << ", el = " << el
<< " leg1 = " << leg1 << ", leg2 = " << leg2 << endl;
}
// el.flags.illegal = !LegalTet (el);
*/
cnt += VolumeElement(i).Illegal();
}
return cnt;
}
// #ifdef NONE
// void Mesh :: AddIdentification (int pi1, int pi2, int identnr)
// {
// INDEX_2 pair(pi1, pi2);
// // pair.Sort();
// identifiedpoints->Set (pair, identnr);
// if (identnr > maxidentnr)
// maxidentnr = identnr;
// timestamp = NextTimeStamp();
// }
// int Mesh :: GetIdentification (int pi1, int pi2) const
// {
// INDEX_2 pair(pi1, pi2);
// if (identifiedpoints->Used (pair))
// return identifiedpoints->Get(pair);
// else
// return 0;
// }
// int Mesh :: GetIdentificationSym (int pi1, int pi2) const
// {
// INDEX_2 pair(pi1, pi2);
// if (identifiedpoints->Used (pair))
// return identifiedpoints->Get(pair);
// pair = INDEX_2 (pi2, pi1);
// if (identifiedpoints->Used (pair))
// return identifiedpoints->Get(pair);
// return 0;
// }
// void Mesh :: GetIdentificationMap (int identnr, Array<int> & identmap) const
// {
// int i, j;
// identmap.SetSize (GetNP());
// for (i = 1; i <= identmap.Size(); i++)
// identmap.Elem(i) = 0;
// for (i = 1; i <= identifiedpoints->GetNBags(); i++)
// for (j = 1; j <= identifiedpoints->GetBagSize(i); j++)
// {
// INDEX_2 i2;
// int nr;
// identifiedpoints->GetData (i, j, i2, nr);
// if (nr == identnr)
// {
// identmap.Elem(i2.I1()) = i2.I2();
// }
// }
// }
// void Mesh :: GetIdentificationPairs (int identnr, Array<INDEX_2> & identpairs) const
// {
// int i, j;
// identpairs.SetSize(0);
// for (i = 1; i <= identifiedpoints->GetNBags(); i++)
// for (j = 1; j <= identifiedpoints->GetBagSize(i); j++)
// {
// INDEX_2 i2;
// int nr;
// identifiedpoints->GetData (i, j, i2, nr);
// if (identnr == 0 || nr == identnr)
// identpairs.Append (i2);
// }
// }
// #endif
void Mesh :: InitPointCurve(double red, double green, double blue) const
{
pointcurves_startpoint.Append(pointcurves.Size());
pointcurves_red.Append(red);
pointcurves_green.Append(green);
pointcurves_blue.Append(blue);
}
void Mesh :: AddPointCurvePoint(const Point3d & pt) const
{
pointcurves.Append(pt);
}
int Mesh :: GetNumPointCurves(void) const
{
return pointcurves_startpoint.Size();
}
int Mesh :: GetNumPointsOfPointCurve(int curve) const
{
if(curve == pointcurves_startpoint.Size()-1)
return (pointcurves.Size() - pointcurves_startpoint.Last());
else
return (pointcurves_startpoint[curve+1]-pointcurves_startpoint[curve]);
}
Point3d & Mesh :: GetPointCurvePoint(int curve, int n) const
{
return pointcurves[pointcurves_startpoint[curve]+n];
}
void Mesh :: GetPointCurveColor(int curve, double & red, double & green, double & blue) const
{
red = pointcurves_red[curve];
green = pointcurves_green[curve];
blue = pointcurves_blue[curve];
}
void Mesh :: ComputeNVertices ()
{
int i, j, nv;
int ne = GetNE();
int nse = GetNSE();
numvertices = 0;
for (i = 1; i <= ne; i++)
{
const Element & el = VolumeElement(i);
nv = el.GetNV();
for (j = 0; j < nv; j++)
if (el[j] > numvertices)
numvertices = el[j];
}
for (i = 1; i <= nse; i++)
{
const Element2d & el = SurfaceElement(i);
nv = el.GetNV();
for (j = 1; j <= nv; j++)
if (el.PNum(j) > numvertices)
numvertices = el.PNum(j);
}
numvertices += 1- PointIndex::BASE;
}
int Mesh :: GetNV () const
{
if (numvertices < 0)
return GetNP();
else
return numvertices;
}
void Mesh :: SetNP (int np)
{
points.SetSize(np);
// ptyps.SetSize(np);
int mlold = mlbetweennodes.Size();
mlbetweennodes.SetSize(np);
if (np > mlold)
for (int i = mlold+PointIndex::BASE;
i < np+PointIndex::BASE; i++)
{
mlbetweennodes[i].I1() = PointIndex::BASE-1;
mlbetweennodes[i].I2() = PointIndex::BASE-1;
}
GetIdentifications().SetMaxPointNr (np + PointIndex::BASE-1);
}
/*
void Mesh :: BuildConnectedNodes ()
{
if (PureTetMesh())
{
connectedtonode.SetSize(0);
return;
}
int i, j, k;
int np = GetNP();
int ne = GetNE();
TABLE<int> conto(np);
for (i = 1; i <= ne; i++)
{
const Element & el = VolumeElement(i);
if (el.GetType() == PRISM)
{
for (j = 1; j <= 6; j++)
{
int n1 = el.PNum (j);
int n2 = el.PNum ((j+2)%6+1);
// if (n1 != n2)
{
int found = 0;
for (k = 1; k <= conto.EntrySize(n1); k++)
if (conto.Get(n1, k) == n2)
{
found = 1;
break;
}
if (!found)
conto.Add (n1, n2);
}
}
}
else if (el.GetType() == PYRAMID)
{
for (j = 1; j <= 4; j++)
{
int n1, n2;
switch (j)
{
case 1: n1 = 1; n2 = 4; break;
case 2: n1 = 4; n2 = 1; break;
case 3: n1 = 2; n2 = 3; break;
case 4: n1 = 3; n2 = 2; break;
}
int found = 0;
for (k = 1; k <= conto.EntrySize(n1); k++)
if (conto.Get(n1, k) == n2)
{
found = 1;
break;
}
if (!found)
conto.Add (n1, n2);
}
}
}
connectedtonode.SetSize(np);
for (i = 1; i <= np; i++)
connectedtonode.Elem(i) = 0;
for (i = 1; i <= np; i++)
if (connectedtonode.Elem(i) == 0)
{
connectedtonode.Elem(i) = i;
ConnectToNodeRec (i, i, conto);
}
}
void Mesh :: ConnectToNodeRec (int node, int tonode,
const TABLE<int> & conto)
{
int i, n2;
// (*testout) << "connect " << node << " to " << tonode << endl;
for (i = 1; i <= conto.EntrySize(node); i++)
{
n2 = conto.Get(node, i);
if (!connectedtonode.Get(n2))
{
connectedtonode.Elem(n2) = tonode;
ConnectToNodeRec (n2, tonode, conto);
}
}
}
*/
bool Mesh :: PureTrigMesh (int faceindex) const
{
// if (!faceindex) return !mparam.quad;
if (!faceindex)
{
for (int i = 1; i <= GetNSE(); i++)
if (SurfaceElement(i).GetNP() != 3)
return false;
return true;
}
for (int i = 1; i <= GetNSE(); i++)
if (SurfaceElement(i).GetIndex() == faceindex &&
SurfaceElement(i).GetNP() != 3)
return false;
return true;
}
bool Mesh :: PureTetMesh () const
{
for (ElementIndex ei = 0; ei < GetNE(); ei++)
if (VolumeElement(ei).GetNP() != 4)
return 0;
return 1;
}
void Mesh :: UpdateTopology()
{
topology->Update();
clusters->Update();
}
void Mesh :: BuildCurvedElements (const Refinement * ref, int aorder, bool arational)
{
GetCurvedElements().BuildCurvedElements (ref, aorder, arational);
for (SegmentIndex seg = 0; seg < GetNSeg(); seg++)
(*this)[seg].SetCurved (GetCurvedElements().IsSegmentCurved (seg));
for (SurfaceElementIndex sei = 0; sei < GetNSE(); sei++)
(*this)[sei].SetCurved (GetCurvedElements().IsSurfaceElementCurved (sei));
for (ElementIndex ei = 0; ei < GetNE(); ei++)
(*this)[ei].SetCurved (GetCurvedElements().IsElementCurved (ei));
SetNextMajorTimeStamp();
}
void Mesh :: SetMaterial (int domnr, const char * mat)
{
if (domnr > materials.Size())
{
int olds = materials.Size();
materials.SetSize (domnr);
for (int i = olds; i < domnr; i++)
materials[i] = 0;
}
materials.Elem(domnr) = new char[strlen(mat)+1];
strcpy (materials.Elem(domnr), mat);
}
const char * Mesh :: GetMaterial (int domnr) const
{
if (domnr <= materials.Size())
return materials.Get(domnr);
return 0;
}
void Mesh ::SetNBCNames ( int nbcn )
{
if ( bcnames.Size() )
for ( int i = 0; i < bcnames.Size(); i++)
if ( bcnames[i] ) delete bcnames[i];
bcnames.SetSize(nbcn);
bcnames = 0;
}
void Mesh ::SetBCName ( int bcnr, const string & abcname )
{
if ( bcnames[bcnr] ) delete bcnames[bcnr];
if ( abcname != "default" )
bcnames[bcnr] = new string ( abcname );
else
bcnames[bcnr] = 0;
}
const string & Mesh ::GetBCName ( int bcnr ) const
{
static string defaultstring = "default";
if ( !bcnames.Size() )
return defaultstring;
if ( bcnames[bcnr] )
return *bcnames[bcnr];
else
return defaultstring;
}
void Mesh :: SetUserData(const char * id, Array<int> & data)
{
if(userdata_int.Used(id))
delete userdata_int.Get(id);
Array<int> * newdata = new Array<int>(data);
userdata_int.Set(id,newdata);
}
bool Mesh :: GetUserData(const char * id, Array<int> & data, int shift) const
{
if(userdata_int.Used(id))
{
if(data.Size() < (*userdata_int.Get(id)).Size()+shift)
data.SetSize((*userdata_int.Get(id)).Size()+shift);
for(int i=0; i<(*userdata_int.Get(id)).Size(); i++)
data[i+shift] = (*userdata_int.Get(id))[i];
return true;
}
else
{
data.SetSize(0);
return false;
}
}
void Mesh :: SetUserData(const char * id, Array<double> & data)
{
if(userdata_double.Used(id))
delete userdata_double.Get(id);
Array<double> * newdata = new Array<double>(data);
userdata_double.Set(id,newdata);
}
bool Mesh :: GetUserData(const char * id, Array<double> & data, int shift) const
{
if(userdata_double.Used(id))
{
if(data.Size() < (*userdata_double.Get(id)).Size()+shift)
data.SetSize((*userdata_double.Get(id)).Size()+shift);
for(int i=0; i<(*userdata_double.Get(id)).Size(); i++)
data[i+shift] = (*userdata_double.Get(id))[i];
return true;
}
else
{
data.SetSize(0);
return false;
}
}
void Mesh :: PrintMemInfo (ostream & ost) const
{
ost << "Mesh Mem:" << endl;
ost << GetNP() << " Points, of size "
<< sizeof (Point3d) << " + " << sizeof(POINTTYPE) << " = "
<< GetNP() * (sizeof (Point3d) + sizeof(POINTTYPE)) << endl;
ost << GetNSE() << " Surface elements, of size "
<< sizeof (Element2d) << " = "
<< GetNSE() * sizeof(Element2d) << endl;
ost << GetNE() << " Volume elements, of size "
<< sizeof (Element) << " = "
<< GetNE() * sizeof(Element) << endl;
ost << "surfs on node:";
surfacesonnode.PrintMemInfo (cout);
ost << "boundaryedges: ";
if (boundaryedges)
boundaryedges->PrintMemInfo (cout);
ost << "surfelementht: ";
if (surfelementht)
surfelementht->PrintMemInfo (cout);
}
}
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