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meshstlsurface.cpp
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#include <mystdlib.h>
#include <myadt.hpp>
#include <linalg.hpp>
#include <gprim.hpp>
#include <meshing.hpp>
#include "stlgeom.hpp"
namespace netgen
{
static void STLFindEdges (STLGeometry & geom, Mesh & mesh,
const MeshingParameters& mparam,
const STLParameters& stlparam)
{
double h = mparam.maxh;
// mark edge points:
//int ngp = geom.GetNP();
geom.RestrictLocalH(mesh, h, stlparam, mparam);
PushStatusF("Mesh Lines");
NgArray<STLLine*> meshlines;
NgArray<Point3d> meshpoints;
PrintMessage(3,"Mesh Lines");
/*
cout << geom.GetNLines() << " lines" << endl;
double totnp = 0;
for (int i = 1; i <= geom.GetNLines(); i++)
totnp += geom.GetLine(i)->NP();
cout << "avg np per line " << totnp/geom.GetNLines() << endl;
*/
for (int i = 1; i <= geom.GetNLines(); i++)
{
meshlines.Append(geom.GetLine(i)->Mesh(geom.GetPoints(), meshpoints, h, mesh));
SetThreadPercent(100.0 * (double)i/(double)geom.GetNLines());
}
geom.meshpoints.SetSize(0); //testing
geom.meshlines.SetSize(0); //testing
for (int i = 1; i <= meshpoints.Size(); i++)
{
geom.meshpoints.Append(meshpoints.Get(i)); //testing
mesh.AddPoint(meshpoints.Get(i));
}
//(++++++++++++++testing
for (int i = 1; i <= geom.GetNLines(); i++)
{
geom.meshlines.Append(meshlines.Get(i));
}
//++++++++++++++testing)
PrintMessage(7,"feed with edges");
for (int i = 1; i <= meshlines.Size(); i++)
{
STLLine* line = meshlines.Get(i);
(*testout) << "store line " << i << endl;
for (int j = 1; j <= line->GetNS(); j++)
{
int p1, p2;
line->GetSeg(j, p1, p2);
int trig1, trig2, trig1b, trig2b;
if (p1 == p2)
cout << "Add Segment, p1 == p2 == " << p1 << endl;
// Test auf geschlossener Rand mit 2 Segmenten
if ((j == 2) && (line->GetNS() == 2))
{
int oldp1, oldp2;
line->GetSeg (1, oldp1, oldp2);
if (oldp1 == p2 && oldp2 == p1)
{
PrintMessage(7,"MESSAGE: don't use second segment");
continue;
}
}
//mesh point number
//p1 = geom2meshnum.Get(p1); // for unmeshed lines!!!
//p2 = geom2meshnum.Get(p2); // for unmeshed lines!!!
//left and right trigs
trig1 = line->GetLeftTrig(j);
trig2 = line->GetRightTrig(j);
trig1b = line->GetLeftTrig(j+1);
trig2b = line->GetRightTrig(j+1);
(*testout) << "j = " << j << ", p1 = " << p1 << ", p2 = " << p2 << endl;
(*testout) << "segm-trigs: "
<< "trig1 = " << trig1
<< ", trig1b = " << trig1b
<< ", trig2 = " << trig2
<< ", trig2b = " << trig2b << endl;
if (trig1 <= 0 || trig2 < 0 || trig1b <= 0 || trig2b < 0)
{
cout << "negative trigs, "
<< ", trig1 = " << trig1
<< ", trig1b = " << trig1b
<< ", trig2 = " << trig2
<< ", trig2b = " << trig2b << endl;
}
/*
(*testout) << " trigs p1: " << trig1 << " - " << trig2 << endl;
(*testout) << " trigs p2: " << trig1b << " - " << trig2b << endl;
(*testout) << " charts p1: " << geom.GetChartNr(trig1) << " - " << geom.GetChartNr(trig2) << endl;
(*testout) << " charts p2: " << geom.GetChartNr(trig1b) << " - " << geom.GetChartNr(trig2b) << endl;
*/
Point3d hp, hp2;
Segment seg;
seg[0] = p1 + PointIndex::BASE-1;
seg[1] = p2 + PointIndex::BASE-1;
seg.si = geom.GetTriangle(trig1).GetFaceNum();
seg.edgenr = i;
seg.epgeominfo[0].edgenr = i;
seg.epgeominfo[0].dist = line->GetDist(j);
seg.epgeominfo[1].edgenr = i;
seg.epgeominfo[1].dist = line->GetDist(j+1);
/*
(*testout) << "seg = "
<< "edgenr " << seg.epgeominfo[0].edgenr
<< " dist " << seg.epgeominfo[0].dist
<< " edgenr " << seg.epgeominfo[1].edgenr
<< " dist " << seg.epgeominfo[1].dist << endl;
*/
seg.geominfo[0].trignum = trig1;
seg.geominfo[1].trignum = trig1b;
/*
geom.SelectChartOfTriangle (trig1);
hp = hp2 = mesh.Point (seg[0]);
seg.geominfo[0].trignum = geom.Project (hp);
(*testout) << "hp = " << hp2 << ", hp proj = " << hp << ", trignum = " << seg.geominfo[0].trignum << endl;
if (Dist (hp, hp2) > 1e-5 || seg.geominfo[0].trignum == 0)
{
(*testout) << "PROBLEM" << endl;
}
geom.SelectChartOfTriangle (trig1b);
hp = hp2 = mesh.Point (seg[1]);
seg.geominfo[1].trignum = geom.Project (hp);
(*testout) << "hp = " << hp2 << ", hp proj = " << hp << ", trignum = " << seg.geominfo[1].trignum << endl;
if (Dist (hp, hp2) > 1e-5 || seg.geominfo[1].trignum == 0)
{
(*testout) << "PROBLEM" << endl;
}
*/
if (Dist (mesh.Point(seg[0]), mesh.Point(seg[1])) < 1e-10)
{
(*testout) << "ERROR: Line segment of length 0" << endl;
(*testout) << "pi1, 2 = " << seg[0] << ", " << seg[1] << endl;
(*testout) << "p1, 2 = " << mesh.Point(seg[0])
<< ", " << mesh.Point(seg[1]) << endl;
throw NgException ("Line segment of length 0");
}
mesh.AddSegment (seg);
if(trig2 != 0)
{
Segment seg2;
seg2[0] = p2 + PointIndex::BASE-1;;
seg2[1] = p1 + PointIndex::BASE-1;;
seg2.si = geom.GetTriangle(trig2).GetFaceNum();
seg2.edgenr = i;
seg2.epgeominfo[0].edgenr = i;
seg2.epgeominfo[0].dist = line->GetDist(j+1);
seg2.epgeominfo[1].edgenr = i;
seg2.epgeominfo[1].dist = line->GetDist(j);
/*
(*testout) << "seg = "
<< "edgenr " << seg2.epgeominfo[0].edgenr
<< " dist " << seg2.epgeominfo[0].dist
<< " edgenr " << seg2.epgeominfo[1].edgenr
<< " dist " << seg2.epgeominfo[1].dist << endl;
*/
seg2.geominfo[0].trignum = trig2b;
seg2.geominfo[1].trignum = trig2;
/*
geom.SelectChartOfTriangle (trig2);
hp = hp2 = mesh.Point (seg[0]);
seg2.geominfo[0].trignum = geom.Project (hp);
(*testout) << "hp = " << hp2 << ", hp proj = " << hp << ", trignum = " << seg.geominfo[0].trignum << endl;
if (Dist (hp, hp2) > 1e-5 || seg2.geominfo[0].trignum == 0)
{
(*testout) << "Get GeomInfo PROBLEM" << endl;
}
geom.SelectChartOfTriangle (trig2b);
hp = hp2 = mesh.Point (seg[1]);
seg2.geominfo[1].trignum = geom.Project (hp);
(*testout) << "hp = " << hp2 << ", hp proj = " << hp << ", trignum = " << seg.geominfo[1].trignum << endl;
if (Dist (hp, hp2) > 1e-5 || seg2.geominfo[1].trignum == 0)
{
(*testout) << "Get GeomInfo PROBLEM" << endl;
}
*/
mesh.AddSegment (seg2);
}
}
}
PopStatus();
}
void STLSurfaceMeshing1 (STLGeometry & geom, class Mesh & mesh, const MeshingParameters& mparam,
int retrynr, const STLParameters& stlparam);
int STLSurfaceMeshing (STLGeometry & geom, class Mesh & mesh, const MeshingParameters& mparam,
const STLParameters& stlparam)
{
PrintFnStart("Do Surface Meshing");
geom.PrepareSurfaceMeshing();
if (mesh.GetNSeg() == 0)
STLFindEdges (geom, mesh, mparam, stlparam);
int nopen;
int outercnt = 20;
for (int i = 1; i <= mesh.GetNSeg(); i++)
{
const Segment & seg = mesh.LineSegment (i);
if (seg.geominfo[0].trignum <= 0 || seg.geominfo[1].trignum <= 0)
(*testout) << "Problem with segment " << i << ": " << seg << endl;
}
do
{
outercnt--;
if (outercnt <= 0)
return MESHING3_OUTERSTEPSEXCEEDED;
if (multithread.terminate) return MESHING3_TERMINATE;
mesh.FindOpenSegments();
nopen = mesh.GetNOpenSegments();
if (nopen)
{
int trialcnt = 0;
while (nopen && trialcnt <= 5)
{
if (multithread.terminate) { return MESHING3_TERMINATE; }
trialcnt++;
STLSurfaceMeshing1 (geom, mesh, mparam, trialcnt, stlparam);
mesh.FindOpenSegments();
nopen = mesh.GetNOpenSegments();
auto n_illegal_trigs = mesh.FindIllegalTrigs();
PrintMessage (3, n_illegal_trigs, " illegal triangles");
if (nopen)
{
geom.ClearMarkedSegs();
for (int i = 1; i <= nopen; i++)
{
const Segment & seg = mesh.GetOpenSegment (i);
geom.AddMarkedSeg(mesh.Point(seg[0]),mesh.Point(seg[1]));
}
geom.InitMarkedTrigs();
for (int i = 1; i <= nopen; i++)
{
const Segment & seg = mesh.GetOpenSegment (i);
geom.SetMarkedTrig(seg.geominfo[0].trignum,1);
geom.SetMarkedTrig(seg.geominfo[1].trignum,1);
}
MeshOptimize2d optmesh(mesh);
optmesh.SetFaceIndex (0);
optmesh.SetImproveEdges (0);
optmesh.SetMetricWeight (0);
mesh.CalcSurfacesOfNode();
optmesh.EdgeSwapping (0);
optmesh.ImproveMesh (mparam);
}
mesh.Compress();
mesh.FindOpenSegments();
nopen = mesh.GetNOpenSegments();
if (trialcnt <= 5 && nopen)
{
mesh.RemoveOneLayerSurfaceElements();
if (trialcnt >= 4)
{
mesh.FindOpenSegments();
mesh.RemoveOneLayerSurfaceElements();
mesh.FindOpenSegments ();
nopen = mesh.GetNOpenSegments();
}
}
}
if (multithread.terminate)
return MESHING3_TERMINATE;
if (nopen)
{
PrintMessage(3,"Meshing failed, trying to refine");
mesh.FindOpenSegments ();
nopen = mesh.GetNOpenSegments();
mesh.FindOpenSegments ();
mesh.RemoveOneLayerSurfaceElements();
mesh.FindOpenSegments ();
mesh.RemoveOneLayerSurfaceElements();
// Open edge-segments will be refined !
INDEX_2_HASHTABLE<int> openseght (nopen+1);
for (int i = 1; i <= mesh.GetNOpenSegments(); i++)
{
const Segment & seg = mesh.GetOpenSegment (i);
INDEX_2 i2(seg[0], seg[1]);
i2.Sort();
openseght.Set (i2, 1);
}
mesh.FindOpenSegments ();
mesh.RemoveOneLayerSurfaceElements();
mesh.FindOpenSegments ();
mesh.RemoveOneLayerSurfaceElements();
INDEX_2_HASHTABLE<int> newpht(100);
int nsegold = mesh.GetNSeg();
for (int i = 1; i <= nsegold; i++)
{
Segment seg = mesh.LineSegment(i);
INDEX_2 i2(seg[0], seg[1]);
i2.Sort();
if (openseght.Used (i2))
{
// segment will be split
PrintMessage(7,"Split segment ", int(seg[0]), "-", int(seg[1]));
Segment nseg1, nseg2;
EdgePointGeomInfo newgi;
const EdgePointGeomInfo & gi1 = seg.epgeominfo[0];
const EdgePointGeomInfo & gi2 = seg.epgeominfo[1];
newgi.dist = 0.5 * (gi1.dist + gi2.dist);
newgi.edgenr = gi1.edgenr;
int hi;
Point3d newp;
int newpi;
if (!newpht.Used (i2))
{
newp = geom.GetLine (gi1.edgenr)->
GetPointInDist (geom.GetPoints(), newgi.dist, hi);
newpi = mesh.AddPoint (newp);
newpht.Set (i2, newpi);
}
else
{
newpi = newpht.Get (i2);
newp = mesh.Point (newpi);
}
nseg1 = seg;
nseg2 = seg;
nseg1[1] = newpi;
nseg1.epgeominfo[1] = newgi;
nseg2[0] = newpi;
nseg2.epgeominfo[0] = newgi;
mesh.LineSegment(i) = nseg1;
mesh.AddSegment (nseg2);
mesh.RestrictLocalH (Center (mesh.Point(nseg1[0]),
mesh.Point(nseg1[1])),
Dist (mesh.Point(nseg1[0]),
mesh.Point(nseg1[1])));
mesh.RestrictLocalH (Center (mesh.Point(nseg2[0]),
mesh.Point(nseg2[1])),
Dist (mesh.Point(nseg2[0]),
mesh.Point(nseg2[1])));
}
}
}
nopen = -1;
}
else
{
PrintMessage(5,"mesh is closed, verifying ...");
// no open elements, check wrong elements (intersecting..)
PrintMessage(5,"check overlapping");
// mesh.FindOpenElements(); // would leed to locked points
mesh.CheckOverlappingBoundary();
// if(mesh.CheckOverlappingBoundary()) ;
// return MESHING3_BADSURFACEMESH;
geom.InitMarkedTrigs();
for (int i = 1; i <= mesh.GetNSE(); i++)
if (mesh.SurfaceElement(i).BadElement())
{
int trig = mesh.SurfaceElement(i).PNum(1);
geom.SetMarkedTrig(trig,1);
PrintMessage(7, "overlapping element, will be removed");
}
NgArray<Point3d> refpts;
NgArray<double> refh;
// was commented:
for (SurfaceElementIndex sei = 0; sei < mesh.GetNSE(); sei++)
if (mesh[sei].BadElement())
{
for (int j = 1; j <= 3; j++)
{
refpts.Append (mesh.Point (mesh[sei].PNum(j)));
refh.Append (mesh.GetH (refpts.Last()) / 2);
}
mesh.Delete(sei);
}
// delete wrong oriented element
for (SurfaceElementIndex sei = 0; sei < mesh.GetNSE(); sei++)
{
const Element2d & el = mesh[sei];
if (el.IsDeleted()) continue;
if (!el.PNum(1).IsValid()) continue;
Vec3d n = Cross (Vec3d (mesh.Point(el.PNum(1)),
mesh.Point(el.PNum(2))),
Vec3d (mesh.Point(el.PNum(1)),
mesh.Point(el.PNum(3))));
Vec3d ng = geom.GetTriangle(el.GeomInfoPi(1).trignum).Normal();
if (n * ng < 0)
{
refpts.Append (mesh.Point (mesh[sei].PNum(1)));
refh.Append (mesh.GetH (refpts.Last()) / 2);
mesh.Delete(sei);
}
}
// end comments
for (int i = 1; i <= refpts.Size(); i++)
mesh.RestrictLocalH (refpts.Get(i), refh.Get(i));
mesh.RemoveOneLayerSurfaceElements();
// Open edge-segments will be refined !
INDEX_2_HASHTABLE<int> openseght (nopen+1);
for (int i = 1; i <= mesh.GetNOpenSegments(); i++)
{
const Segment & seg = mesh.GetOpenSegment (i);
INDEX_2 i2(seg[0], seg[1]);
i2.Sort();
openseght.Set (i2, 1);
}
mesh.FindOpenSegments ();
mesh.RemoveOneLayerSurfaceElements();
mesh.FindOpenSegments ();
int nsegold = mesh.GetNSeg();
INDEX_2_HASHTABLE<int> newpht(100);
for (int i = 1; i <= nsegold; i++)
{
Segment seg = mesh.LineSegment(i);
INDEX_2 i2(seg[0], seg[1]);
i2.Sort();
if (openseght.Used (i2))
{
// segment will be split
PrintMessage(7,"Split segment ", int(seg[0]), "-", int(seg[1]));
Segment nseg1, nseg2;
EdgePointGeomInfo newgi;
const EdgePointGeomInfo & gi1 = seg.epgeominfo[0];
const EdgePointGeomInfo & gi2 = seg.epgeominfo[1];
newgi.dist = 0.5 * (gi1.dist + gi2.dist);
newgi.edgenr = gi1.edgenr;
int hi;
Point3d newp;
int newpi;
if (!newpht.Used (i2))
{
newp = geom.GetLine (gi1.edgenr)->
GetPointInDist (geom.GetPoints(), newgi.dist, hi);
newpi = mesh.AddPoint (newp);
newpht.Set (i2, newpi);
}
else
{
newpi = newpht.Get (i2);
newp = mesh.Point (newpi);
}
nseg1 = seg;
nseg2 = seg;
nseg1[1] = newpi;
nseg1.epgeominfo[1] = newgi;
nseg2[0] = newpi;
nseg2.epgeominfo[0] = newgi;
mesh.LineSegment(i) = nseg1;
mesh.AddSegment (nseg2);
mesh.RestrictLocalH (Center (mesh.Point(nseg1[0]),
mesh.Point(nseg1[1])),
Dist (mesh.Point(nseg1[0]),
mesh.Point(nseg1[1])));
mesh.RestrictLocalH (Center (mesh.Point(nseg2[0]),
mesh.Point(nseg2[1])),
Dist (mesh.Point(nseg2[0]),
mesh.Point(nseg2[1])));
}
}
mesh.Compress();
mesh.FindOpenSegments ();
nopen = mesh.GetNOpenSegments();
/*
if (!nopen)
{
// mesh is still ok
void STLSurfaceOptimization (STLGeometry & geom,
class Mesh & mesh,
MeshingParameters & mparam)
}
*/
}
}
while (nopen);
if(mesh.CheckOverlappingBoundary())
return MESHING3_BADSURFACEMESH;
mesh.Compress();
mesh.CalcSurfacesOfNode();
return MESHING3_OK;
}
void STLSurfaceMeshing1 (STLGeometry & geom,
Mesh & mesh,
const MeshingParameters& mparam,
int retrynr,
const STLParameters& stlparam)
{
static int timer1 = NgProfiler::CreateTimer ("STL surface meshing1");
static int timer1a = NgProfiler::CreateTimer ("STL surface meshing1a");
static int timer1b = NgProfiler::CreateTimer ("STL surface meshing1b");
static int timer1c = NgProfiler::CreateTimer ("STL surface meshing1c");
static int timer1d = NgProfiler::CreateTimer ("STL surface meshing1d");
double h = mparam.maxh;
mesh.FindOpenSegments();
NgArray<int> spiralps(0);
spiralps.SetSize(0);
for (int i = 1; i <= geom.GetNP(); i++)
if (geom.GetSpiralPoint(i))
spiralps.Append(i);
PrintMessage(7,"NO spiralpoints = ", spiralps.Size());
//int spfound;
/*
NgArray<int> meshsp(mesh.GetNP());
meshsp = 0;
for (int i = 1; i <= mesh.GetNP(); i++)
for (int j = 1; j <= spiralps.Size(); j++)
if (Dist2(geom.GetPoint(spiralps.Get(j)), mesh.Point(i)) < 1e-20)
meshsp.Elem(i) = spiralps.Get(j);
NgArray<PointIndex> imeshsp;
for (int i = 1; i <= meshsp.Size(); i++)
if (meshsp.Elem(i)) imeshsp.Append(i);
*/
NgArray<PointIndex> imeshsp;
NgArray<int> ispiral_point;
for (int i = 1; i <= mesh.GetNP(); i++)
{
for (int j = 1; j <= spiralps.Size(); j++)
if (Dist2(geom.GetPoint(spiralps.Get(j)), mesh.Point(i)) < 1e-20)
{
imeshsp.Append(i);
ispiral_point.Append(spiralps.Get(j));
break;
}
}
double starttime = GetTime ();
mesh.SurfaceArea().ReCalc();
// int oldnp = mesh.GetNP();
NgArray<int,PointIndex::BASE> compress(mesh.GetNP());
compress = 0;
NgArray<PointIndex> icompress;
NgArray<int, 1> opensegsperface(mesh.GetNFD());
opensegsperface = 0;
for (int i = 1; i <= mesh.GetNOpenSegments(); i++)
opensegsperface[mesh.GetOpenSegment(i).si]++;
TABLE<int, 1> opensegments(mesh.GetNFD());
for (int i = 1; i <= mesh.GetNOpenSegments(); i++)
{
const Segment & seg = mesh.GetOpenSegment (i);
if (seg.si < 1 || seg.si > mesh.GetNFD())
cerr << "segment index " << seg.si << " out of range [1, " << mesh.GetNFD() << "]" << endl;
opensegments.Add (seg.si, i);
}
for (int fnr = 1; fnr <= mesh.GetNFD(); fnr++)
{
if (!opensegsperface[fnr]) continue;
if (multithread.terminate) return;
NgProfiler::StartTimer (timer1);
NgProfiler::StartTimer (timer1a);
PrintMessage(5,"Meshing surface ", fnr, "/", mesh.GetNFD());
MeshingSTLSurface meshing (geom, mparam);
meshing.SetStartTime (starttime);
// compress = 0;
icompress.SetSize(0);
int cntused = 0;
for (int i = 0; i < imeshsp.Size(); i++)
{
compress[imeshsp[i]] = ++cntused;
icompress.Append(imeshsp[i]);
}
NgProfiler::StopTimer (timer1a);
NgProfiler::StartTimer (timer1b);
/*
for (int i = 1; i <= mesh.GetNOpenSegments(); i++)
{
const Segment & seg = mesh.GetOpenSegment (i);
if (seg.si == fnr)
for (int j = 0; j < 2; j++)
if (compress[seg[j]] == 0)
{
compress[seg[j]] = ++cntused;
icompress.Append(seg[j]);
}
}
*/
NgFlatArray<int> segs = opensegments[fnr];
for (int hi = 0; hi < segs.Size(); hi++)
{
int i = segs[hi];
const Segment & seg = mesh.GetOpenSegment (i);
for (int j = 0; j < 2; j++)
if (compress[seg[j]] == 0)
{
compress[seg[j]] = ++cntused;
icompress.Append(seg[j]);
}
}
NgProfiler::StopTimer (timer1b);
NgProfiler::StartTimer (timer1c);
for (int hi = 0; hi < icompress.Size(); hi++)
{
PointIndex pi = icompress[hi];
/*
// int sppointnum = meshsp.Get(i);
int sppointnum = 0;
if (hi < ispiral_point.Size())
sppointnum = ispiral_point[hi];
if (sppointnum)
{
*/
if (hi < ispiral_point.Size())
{
int sppointnum = ispiral_point[hi];
MultiPointGeomInfo mgi;
int ntrigs = geom.NOTrigsPerPoint(sppointnum);
for (int j = 0; j < ntrigs; j++)
{
PointGeomInfo gi;
gi.trignum = geom.TrigPerPoint(sppointnum, j+1);
mgi.AddPointGeomInfo (gi);
}
// Einfuegen von ConePoint: Point bekommt alle
// Dreiecke (werden dann intern kopiert)
// Ein Segment zum ConePoint muss vorhanden sein !!!
// meshing.AddPoint (mesh.Point(i), i, &mgi);
meshing.AddPoint (mesh[pi], pi, &mgi);
}
else
meshing.AddPoint (mesh[pi], pi);
}
NgProfiler::StopTimer (timer1c);
NgProfiler::StartTimer (timer1d);
/*
for (int i = 1; i <= mesh.GetNOpenSegments(); i++)
{
const Segment & seg = mesh.GetOpenSegment (i);
if (seg.si == fnr)
meshing.AddBoundaryElement (compress[seg[0]], compress[seg[1]],
seg.geominfo[0], seg.geominfo[1]);
}
*/
// NgFlatArray<int> segs = opensegments[fnr];
for (int hi = 0; hi < segs.Size(); hi++)
{
int i = segs[hi];
const Segment & seg = mesh.GetOpenSegment (i);
meshing.AddBoundaryElement (compress[seg[0]], compress[seg[1]],
seg.geominfo[0], seg.geominfo[1]);
}
NgProfiler::StopTimer (timer1d);
NgProfiler::StopTimer (timer1);
PrintMessage(3,"start meshing, trialcnt = ", retrynr);
meshing.GenerateMesh (mesh, mparam, h, fnr);
for (int i = 0; i < icompress.Size(); i++)
compress[icompress[i]] = 0;
mparam.Render();
}
// NgProfiler::Print(stdout);
mesh.CalcSurfacesOfNode();
}
void STLSurfaceOptimization (STLGeometry & geom,
Mesh & mesh,
const MeshingParameters & mparam)
{
PrintFnStart("optimize STL Surface");
MeshOptimize2d optmesh(mesh);
optmesh.SetFaceIndex (0);
optmesh.SetImproveEdges (0);
optmesh.SetMetricWeight (mparam.elsizeweight);
PrintMessage(5,"optimize string = ", mparam.optimize2d, " elsizew = ", mparam.elsizeweight);
for (int i = 1; i <= mparam.optsteps2d; i++)
for (size_t j = 1; j <= mparam.optimize2d.length(); j++)
{
if (multithread.terminate)
break;
//(*testout) << "optimize, before, step = " << meshparam.optimize2d[j-1] << mesh.Point (3679) << endl;
mesh.CalcSurfacesOfNode();
switch (mparam.optimize2d[j-1])
{
case 's':
{
optmesh.EdgeSwapping(0);
break;
}
case 'S':
{
optmesh.EdgeSwapping(1);
break;
}
case 'm':
{
optmesh.ImproveMesh(mparam);
break;
}
case 'c':
{
optmesh.CombineImprove();
break;
}
}
// while(mesh.CheckOverlappingBoundary())
// {
// for(const auto & el : mesh.SurfaceElements())
// {
// if(el.BadElement())
// {
// cout << "Restrict localh at el nr " << el << endl;
// for(const auto& p : el.PNums())
// {
// const auto& pnt = mesh[p];
// mesh.RestrictLocalH(pnt, 0.5*mesh.GetH(pnt));
// }
// }
// }
// optmesh.SplitImprove();
// }
//(*testout) << "optimize, after, step = " << meshparam.optimize2d[j-1] << mesh.Point (3679) << endl;
}
geom.surfaceoptimized = 1;
mesh.Compress();
mesh.CalcSurfacesOfNode();
}
MeshingSTLSurface :: MeshingSTLSurface (STLGeometry & ageom,
const MeshingParameters & mp)
: Meshing2(ageom, mp, ageom.GetBoundingBox()), geom(ageom)
{
;
}
void MeshingSTLSurface :: DefineTransformation (const Point<3> & p1, const Point<3> & p2,
const PointGeomInfo * geominfo,
const PointGeomInfo * geominfo2)
{
transformationtrig = geominfo[0].trignum;
geom.DefineTangentialPlane(p1, p2, transformationtrig);
}
void MeshingSTLSurface :: TransformToPlain (const Point<3> & locpoint, const MultiPointGeomInfo & gi,
Point<2> & plainpoint, double h, int & zone)
{
int trigs[10000];
if (gi.GetNPGI() >= 9999)
{
PrintError("In Transform to plane: increase size of trigs!!!");
}
for (int i = 1; i <= gi.GetNPGI(); i++)
trigs[i-1] = gi.GetPGI(i).trignum;
trigs[gi.GetNPGI()] = 0;
// int trig = gi.trignum;
// (*testout) << "locpoint = " << locpoint;
geom.ToPlane (locpoint, trigs, plainpoint, h, zone, 1);
// geom.ToPlane (locpoint, NULL, plainpoint, h, zone, 1);
/*
(*testout) << " plainpoint = " << plainpoint
<< " h = " << h
<< endl;
*/
}
/*
int MeshingSTLSurface :: ComputeLineGeoInfo (const Point3d & p1, const Point3d & p2,
int & geoinfosize, void *& geoinfo)
{
static int geomtrig[2] = { 0, 0 };
Point3d hp;
hp = p1;
geomtrig[0] = geom.Project (hp);
hp = p2;
geomtrig[1] = geom.Project (hp);
geoinfosize = sizeof (geomtrig);
geoinfo = &geomtrig;
if (geomtrig[0] == 0)
{
return 1;
}
return 0;
}
*/
int MeshingSTLSurface :: ComputePointGeomInfo (const Point3d & p, PointGeomInfo & gi)
{
// compute triangle of point,
// if non-unique: 0
Point<3> hp = p;
gi.trignum = geom.Project (hp);
if (!gi.trignum)
{
return 1;
}
return 0;
}
int MeshingSTLSurface ::
ChooseChartPointGeomInfo (const MultiPointGeomInfo & mpgi,
PointGeomInfo & pgi)
{
for (int i = 1; i <= mpgi.GetNPGI(); i++)
if (geom.TrigIsInOC (mpgi.GetPGI(i).trignum, geom.meshchart))
{
pgi = mpgi.GetPGI(i);
return 0;
}
/*
for (i = 0; i < mpgi.cnt; i++)
{
// (*testout) << "d" << endl;
if (geom.TrigIsInOC (mpgi.mgi[i].trignum, geom.meshchart))