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netgen/libsrc/stlgeom/stlgeom.cpp
Christopher Lackner 9130daa0b9 stl manifold meshing
2022-08-09 17:40:21 +02:00

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#include <meshing.hpp>
#include <core/register_archive.hpp>
#include "stlgeom.hpp"
namespace netgen
{
//globalen searchtree fuer gesamte geometry aktivieren
int geomsearchtreeon = 0;
int usechartnormal = 1;
//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
void STLMeshing (STLGeometry & geom,
Mesh & mesh,
const MeshingParameters& mparam,
const STLParameters& stlpar)
{
geom.Clear();
geom.BuildEdges(stlpar);
geom.MakeAtlas(mesh, mparam, stlpar);
if (multithread.terminate) { return; }
geom.CalcFaceNums();
geom.AddFaceEdges();
geom.LinkEdges(stlpar);
mesh.ClearFaceDescriptors();
for (int i = 1; i <= geom.GetNOFaces(); i++)
mesh.AddFaceDescriptor (FaceDescriptor (i, 1, 0, 0));
}
//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
//+++++++++++++++++++ STL GEOMETRY ++++++++++++++++++++++++++++
//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
STLGeometry :: STLGeometry()
/*
: edges(), edgesperpoint(),
normals(), externaledges(),
atlas(), chartmark(),
lines(), outerchartspertrig(), vicinity(), markedtrigs(), markedsegs(),
lineendpoints(), spiralpoints(), selectedmultiedge()
*/
{
edgedata = make_unique<STLEdgeDataList>(*this);
externaledges.SetSize(0);
Clear();
meshchart = 0; // initialize all ?? JS
if (geomsearchtreeon)
searchtree = new BoxTree<3> (GetBoundingBox().PMin() - Vec3d(1,1,1),
GetBoundingBox().PMax() + Vec3d(1,1,1));
else
searchtree = NULL;
status = STL_GOOD;
statustext = "Good Geometry";
smoothedges = NULL;
area = -1;
}
STLGeometry :: ~STLGeometry()
{
// for (auto p : atlas) delete p;
// delete edgedata;
}
void STLGeometry :: Save (const filesystem::path & filename) const
{
string ext = ToLower(filename.extension());
if (ext == ".stl")
{
STLTopology::Save (filename);
return;
}
else if (ext == ".stlb")
{
SaveBinary (filename,"Binary STL Geometry");
return;
}
else if (ext == ".stle")
{
SaveSTLE (filename);
return;
}
throw Exception ("Unknown target format: " + filename.string());
}
DLL_HEADER extern STLParameters stlparam;
int STLGeometry :: GenerateMesh (shared_ptr<Mesh> & mesh, MeshingParameters & mparam)
{
STLParameters stlpar = stlparam;
return STLMeshingDummy (this, mesh, mparam, stlpar);
}
Vec<3> STLGeometry :: GetNormal(int surfind, const Point<3> & p, const PointGeomInfo* gi) const
{
if(!gi)
throw Exception("STLGeometry::GetNormal without PointGeomInfo called");
return GetChart(GetChartNr(gi->trignum)).GetNormal();
}
bool STLGeometry :: CalcPointGeomInfo(int /*surfind*/, PointGeomInfo& gi, const Point<3> & p3) const
{
Point<3> hp = p3;
SelectChartOfTriangle(gi.trignum);
gi.trignum = Project (hp);
if (gi.trignum) return true;
return false;
}
bool STLGeometry :: ProjectPointGI (int surfind, Point<3> & p, PointGeomInfo & gi) const
{
static std::mutex mutex_project_whole_surface;
int meshchart = GetChartNr(gi.trignum);
const STLChart& chart = GetChart(meshchart);
int trignum = chart.ProjectNormal(p);
if(trignum==0)
{
// non-thread-safe implementation
std::lock_guard<std::mutex> guard(mutex_project_whole_surface);
PrintMessage(7,"project failed");
SelectChartOfTriangle (gi.trignum); // needed because ProjectOnWholeSurface uses meshchartnv (the normal vector of selected chart)
trignum = ProjectOnWholeSurface(p);
if(trignum==0)
{
PrintMessage(7, "project on whole surface failed");
return false;
}
}
return true;
}
PointGeomInfo STLGeometry :: ProjectPoint (INDEX surfind, Point<3> & p) const
{
throw Exception("ProjectPoint without PointGeomInfo not implemented");
}
void STLGeometry ::
PointBetween (const Point<3> & p1, const Point<3> & p2, double secpoint,
int surfi,
const PointGeomInfo & gi1,
const PointGeomInfo & gi2,
Point<3> & newp, PointGeomInfo & newgi) const
{
newp = p1+secpoint*(p2-p1);
/*
(*testout) << "surf-between: p1 = " << p1 << ", p2 = " << p2
<< ", gi = " << gi1 << " - " << gi2 << endl;
*/
if (gi1.trignum > 0)
{
// ((STLGeometry&)geom).SelectChartOfTriangle (gi1.trignum);
Point<3> np1 = newp;
Point<3> np2 = newp;
auto ngi1 = gi1;
auto ngi2 = gi2;
// SelectChartOfTriangle (gi1.trignum);
int tn1 = ProjectPointGI (surfi, np1, ngi1);
// SelectChartOfTriangle (gi2.trignum);
int tn2 = ProjectPointGI (surfi, np2, ngi2);
newgi.trignum = tn1; //urspruengliche version
newp = np1; //urspruengliche version
if (!newgi.trignum)
{ newgi.trignum = tn2; newp = np2; }
if (!newgi.trignum) newgi.trignum = gi1.trignum;
}
else
{
// (*testout) << "WARNING: PointBetween got geominfo = 0" << endl;
newp = p1+secpoint*(p2-p1);
newgi.trignum = 0;
}
}
void STLGeometry ::
PointBetweenEdge (const Point<3> & p1, const Point<3> & p2, double secpoint,
int surfi1, int surfi2,
const EdgePointGeomInfo & gi1,
const EdgePointGeomInfo & gi2,
Point<3> & newp, EdgePointGeomInfo & newgi) const
{
/*
(*testout) << "edge-between: p1 = " << p1 << ", p2 = " << p2
<< ", gi1,2 = " << gi1 << ", " << gi2 << endl;
*/
/*
newp = Center (p1, p2);
((STLGeometry&)geom).SelectChartOfTriangle (gi1.trignum);
newgi.trignum = geom.Project (newp);
*/
int hi;
newgi.dist = (1.0-secpoint) * gi1.dist + secpoint*gi2.dist;
newgi.edgenr = gi1.edgenr;
/*
(*testout) << "p1 = " << p1 << ", p2 = " << p2 << endl;
(*testout) << "refedge: " << gi1.edgenr
<< " d1 = " << gi1.dist << ", d2 = " << gi2.dist << endl;
*/
newp = GetLine (gi1.edgenr)->GetPointInDist (GetPoints(), newgi.dist, hi);
// (*testout) << "newp = " << newp << endl;
}
void STLGeometry :: STLInfo(double* data)
{
data[0] = GetNT();
Box<3> b = GetBoundingBox();
data[1] = b.PMin()(0);
data[2] = b.PMax()(0);
data[3] = b.PMin()(1);
data[4] = b.PMax()(1);
data[5] = b.PMin()(2);
data[6] = b.PMax()(2);
int i;
int cons = 1;
for (i = 1; i <= GetNT(); i++)
{
if (NONeighbourTrigs(i) != 3) {cons = 0;}
}
data[7] = cons;
}
void STLGeometry :: MarkNonSmoothNormals(const STLParameters& stlparam)
{
PrintFnStart("Mark Non-Smooth Normals");
int i,j;
markedtrigs.SetSize(GetNT());
for (i = 1; i <= GetNT(); i++)
{
SetMarkedTrig(i, 0);
}
double dirtyangle = stlparam.yangle/180.*M_PI;
int cnt = 0;
STLPointId lp1,lp2;
for (i = 1; i <= GetNT(); i++)
{
for (j = 1; j <= NONeighbourTrigs(i); j++)
{
if (GetAngle(i, NeighbourTrig(i,j)) > dirtyangle)
{
GetTriangle(i).GetNeighbourPoints(GetTriangle(NeighbourTrig(i,j)), lp1, lp2);
if (!IsEdge(lp1,lp2))
{
if (!IsMarkedTrig(i)) {SetMarkedTrig(i,1); cnt++;}
}
}
}
}
PrintMessage(5,"marked ",cnt," non-smooth trig-normals");
}
void STLGeometry :: SmoothNormals(const STLParameters& stlparam)
{
multithread.terminate = 0;
// UseExternalEdges();
BuildEdges(stlparam);
DenseMatrix m(3), hm(3);
Vector rhs(3), sol(3), hv(3), hv2(3);
Vec<3> ri;
double wnb = stldoctor.smoothnormalsweight; // neighbour normal weight
double wgeom = 1-wnb; // geometry normal weight
// minimize
// wgeom sum_T \sum ri \| ri^T (n - n_geom) \|^2
// + wnb sum_SE \| ri x (n - n_nb) \|^2
int i, j, k, l;
int nt = GetNT();
PushStatusF("Smooth Normals");
//int testmode;
for (i = 1; i <= nt; i++)
{
SetThreadPercent( 100.0 * (double)i / (double)nt);
const STLTriangle & trig = GetTriangle (i);
m = 0;
rhs = 0;
// normal of geometry:
Vec<3> ngeom = trig.GeomNormal(points);
ngeom.Normalize();
for (j = 1; j <= 3; j++)
{
int pi1 = trig.PNumMod (j);
int pi2 = trig.PNumMod (j+1);
// edge vector
ri = GetPoint (pi2) - GetPoint (pi1);
for (k = 0; k < 3; k++)
for (l = 0; l < 3; l++)
hm.Elem(k+1, l+1) = wgeom * ri(k) * ri(l);
for (k = 0; k < 3; k++)
hv(k) = ngeom(k);
hm.Mult (hv, hv2);
/*
if (testmode)
(*testout) << "add vec " << hv2 << endl
<< " add m " << hm << endl;
*/
rhs.Add (1, hv2);
m += hm;
int nbt = 0;
STLPointId fp1,fp2;
for (k = 1; k <= NONeighbourTrigs(i); k++)
{
trig.GetNeighbourPoints(GetTriangle(NeighbourTrig(i, k)),fp1,fp2);
if (fp1 == pi1 && fp2 == pi2)
{
nbt = NeighbourTrig(i, k);
}
}
if (!nbt)
{
cerr << "ERROR: stlgeom::Smoothnormals, nbt = 0" << endl;
}
// smoothed normal
Vec<3> nnb = GetTriangle(nbt).Normal(); // neighbour normal
nnb.Normalize();
if (!IsEdge(pi1,pi2))
{
double lr2 = ri * ri;
for (k = 0; k < 3; k++)
{
for (l = 0; l < k; l++)
{
hm.Elem(k+1, l+1) = -wnb * ri(k) * ri(l);
hm.Elem(l+1, k+1) = -wnb * ri(k) * ri(l);
}
hm.Elem(k+1, k+1) = wnb * (lr2 - ri(k) * ri(k));
}
for (k = 0; k < 3; k++)
hv(k) = nnb(k);
hm.Mult (hv, hv2);
/*
if (testmode)
(*testout) << "add nb vec " << hv2 << endl
<< " add nb m " << hm << endl;
*/
rhs.Add (1, hv2);
m += hm;
}
}
m.Solve (rhs, sol);
Vec3d newn(sol(0), sol(1), sol(2));
newn /= (newn.Length() + 1e-24);
GetTriangle(i).SetNormal(newn);
// setnormal (sol);
}
/*
for (i = 1; i <= nt; i++)
SetMarkedTrig(i, 0);
int crloop;
for (crloop = 1; crloop <= 3; crloop++)
{
// find critical:
NgArray<INDEX_2> critpairs;
for (i = 1; i <= nt; i++)
{
const STLTriangle & trig = GetTriangle (i);
Vec3d ngeom = GetTriangleNormal (i); // trig.Normal(points);
ngeom /= (ngeom.Length() + 1e-24);
for (j = 1; j <= 3; j++)
{
int pi1 = trig.PNumMod (j);
int pi2 = trig.PNumMod (j+1);
int nbt = 0;
int fp1,fp2;
for (k = 1; k <= NONeighbourTrigs(i); k++)
{
trig.GetNeighbourPoints(GetTriangle(NeighbourTrig(i, k)),fp1,fp2);
if (fp1 == pi1 && fp2 == pi2)
{
nbt = NeighbourTrig(i, k);
}
}
if (!nbt)
{
cerr << "ERROR: stlgeom::Smoothnormals, nbt = 0" << endl;
}
Vec3d nnb = GetTriangleNormal(nbt); // neighbour normal
nnb /= (nnb.Length() + 1e-24);
if (!IsEdge(pi1,pi2))
{
if (Angle (nnb, ngeom) > 150 * M_PI/180)
{
SetMarkedTrig(i, 1);
SetMarkedTrig(nbt, 1);
critpairs.Append (INDEX_2 (i, nbt));
}
}
}
}
if (!critpairs.Size())
{
break;
}
if (critpairs.Size())
{
NgArray<int> friends;
double area1 = 0, area2 = 0;
for (i = 1; i <= critpairs.Size(); i++)
{
int tnr1 = critpairs.Get(i).I1();
int tnr2 = critpairs.Get(i).I2();
(*testout) << "t1 = " << tnr1 << ", t2 = " << tnr2
<< " angle = " << Angle (GetTriangleNormal (tnr1),
GetTriangleNormal (tnr2))
<< endl;
// who has more friends ?
int side;
area1 = 0;
area2 = 0;
for (side = 1; side <= 2; side++)
{
friends.SetSize (0);
friends.Append ( (side == 1) ? tnr1 : tnr2);
for (j = 1; j <= 3; j++)
{
int fsize = friends.Size();
for (k = 1; k <= fsize; k++)
{
int testtnr = friends.Get(k);
Vec3d ntt = GetTriangleNormal(testtnr);
ntt /= (ntt.Length() + 1e-24);
for (l = 1; l <= NONeighbourTrigs(testtnr); l++)
{
int testnbnr = NeighbourTrig(testtnr, l);
Vec3d nbt = GetTriangleNormal(testnbnr);
nbt /= (nbt.Length() + 1e-24);
if (Angle (nbt, ntt) < 15 * M_PI/180)
{
int ii;
int found = 0;
for (ii = 1; ii <= friends.Size(); ii++)
{
if (friends.Get(ii) == testnbnr)
{
found = 1;
break;
}
}
if (!found)
friends.Append (testnbnr);
}
}
}
}
// compute area:
for (k = 1; k <= friends.Size(); k++)
{
double area =
GetTriangle (friends.Get(k)).Area(points);
if (side == 1)
area1 += area;
else
area2 += area;
}
}
(*testout) << "area1 = " << area1 << " area2 = " << area2 << endl;
if (area1 < 0.1 * area2)
{
Vec3d n = GetTriangleNormal (tnr1);
n *= -1;
SetTriangleNormal(tnr1, n);
}
if (area2 < 0.1 * area1)
{
Vec3d n = GetTriangleNormal (tnr2);
n *= -1;
SetTriangleNormal(tnr2, n);
}
}
}
}
*/
calcedgedataanglesnew = 1;
PopStatus();
}
int STLGeometry :: AddEdge(int ap1, int ap2)
{
STLEdge e(ap1,ap2);
e.SetLeftTrig(GetLeftTrig(ap1,ap2));
e.SetRightTrig(GetRightTrig(ap1,ap2));
edges.Append(e);
return edges.Size();
}
void STLGeometry :: STLDoctorConfirmEdge()
{
StoreEdgeData();
if (GetSelectTrig() >= 1 && GetSelectTrig() <= GetNT() && GetNodeOfSelTrig())
{
if (stldoctor.selectmode == 1)
{
int ap1 = GetTriangle(GetSelectTrig()).PNum(GetNodeOfSelTrig());
int ap2 = GetTriangle(GetSelectTrig()).PNumMod(GetNodeOfSelTrig()+1);
edgedata->Elem(edgedata->GetEdgeNum(ap1,ap2)).SetStatus (ED_CONFIRMED);
}
else if (stldoctor.selectmode == 3 || stldoctor.selectmode == 4)
{
int i;
for (i = 1; i <= selectedmultiedge.Size(); i++)
{
int ap1 = selectedmultiedge.Get(i).i1;
int ap2 = selectedmultiedge.Get(i).i2;
edgedata->Elem(edgedata->GetEdgeNum(ap1,ap2)).SetStatus (ED_CONFIRMED);
}
}
}
}
void STLGeometry :: STLDoctorCandidateEdge()
{
StoreEdgeData();
if (GetSelectTrig() >= 1 && GetSelectTrig() <= GetNT() && GetNodeOfSelTrig())
{
if (stldoctor.selectmode == 1)
{
int ap1 = GetTriangle(GetSelectTrig()).PNum(GetNodeOfSelTrig());
int ap2 = GetTriangle(GetSelectTrig()).PNumMod(GetNodeOfSelTrig()+1);
edgedata->Elem(edgedata->GetEdgeNum(ap1,ap2)).SetStatus (ED_CANDIDATE);
}
else if (stldoctor.selectmode == 3 || stldoctor.selectmode == 4)
{
int i;
for (i = 1; i <= selectedmultiedge.Size(); i++)
{
int ap1 = selectedmultiedge.Get(i).i1;
int ap2 = selectedmultiedge.Get(i).i2;
edgedata->Elem(edgedata->GetEdgeNum(ap1,ap2)).SetStatus (ED_CANDIDATE);
}
}
}
}
void STLGeometry :: STLDoctorExcludeEdge()
{
StoreEdgeData();
if (GetSelectTrig() >= 1 && GetSelectTrig() <= GetNT() && GetNodeOfSelTrig())
{
if (stldoctor.selectmode == 1)
{
int ap1 = GetTriangle(GetSelectTrig()).PNum(GetNodeOfSelTrig());
int ap2 = GetTriangle(GetSelectTrig()).PNumMod(GetNodeOfSelTrig()+1);
edgedata->Elem(edgedata->GetEdgeNum(ap1,ap2)).SetStatus(ED_EXCLUDED);
}
else if (stldoctor.selectmode == 3 || stldoctor.selectmode == 4)
{
int i;
for (i = 1; i <= selectedmultiedge.Size(); i++)
{
int ap1 = selectedmultiedge.Get(i).i1;
int ap2 = selectedmultiedge.Get(i).i2;
edgedata->Elem(edgedata->GetEdgeNum(ap1,ap2)).SetStatus(ED_EXCLUDED);
}
}
}
}
void STLGeometry :: STLDoctorUndefinedEdge()
{
StoreEdgeData();
if (GetSelectTrig() >= 1 && GetSelectTrig() <= GetNT() && GetNodeOfSelTrig())
{
if (stldoctor.selectmode == 1)
{
int ap1 = GetTriangle(GetSelectTrig()).PNum(GetNodeOfSelTrig());
int ap2 = GetTriangle(GetSelectTrig()).PNumMod(GetNodeOfSelTrig()+1);
edgedata->Elem(edgedata->GetEdgeNum(ap1,ap2)).SetStatus(ED_UNDEFINED);
}
else if (stldoctor.selectmode == 3 || stldoctor.selectmode == 4)
{
int i;
for (i = 1; i <= selectedmultiedge.Size(); i++)
{
int ap1 = selectedmultiedge.Get(i).i1;
int ap2 = selectedmultiedge.Get(i).i2;
edgedata->Elem(edgedata->GetEdgeNum(ap1,ap2)).SetStatus(ED_UNDEFINED);
}
}
}
}
void STLGeometry :: STLDoctorSetAllUndefinedEdges()
{
edgedata->ResetAll();
}
void STLGeometry :: STLDoctorEraseCandidateEdges()
{
StoreEdgeData();
edgedata->ChangeStatus(ED_CANDIDATE, ED_UNDEFINED);
}
void STLGeometry :: STLDoctorConfirmCandidateEdges()
{
StoreEdgeData();
edgedata->ChangeStatus(ED_CANDIDATE, ED_CONFIRMED);
}
void STLGeometry :: STLDoctorConfirmedToCandidateEdges()
{
StoreEdgeData();
edgedata->ChangeStatus(ED_CONFIRMED, ED_CANDIDATE);
}
void STLGeometry :: STLDoctorDirtyEdgesToCandidates()
{
StoreEdgeData();
}
void STLGeometry :: STLDoctorLongLinesToCandidates()
{
StoreEdgeData();
}
twoint STLGeometry :: GetNearestSelectedDefinedEdge()
{
Point<3> pestimate = Center(GetTriangle(GetSelectTrig()).center,
GetPoint(GetTriangle(GetSelectTrig()).PNum(GetNodeOfSelTrig())));
//Point3d pestimate = GetTriangle(GetSelectTrig()).center;
int i, j, en;
NgArray<int> vic;
GetVicinity(GetSelectTrig(),4,vic);
twoint fedg;
fedg.i1 = 0;
fedg.i2 = 0;
double mindist = 1E50;
double dist;
Point<3> p;
for (i = 1; i <= vic.Size(); i++)
{
const STLTriangle& t = GetTriangle(vic.Get(i));
for (j = 1; j <= 3; j++)
{
en = edgedata->GetEdgeNum(t.PNum(j),t.PNumMod(j+1));
if (edgedata->Get(en).GetStatus() != ED_UNDEFINED)
{
p = pestimate;
dist = GetDistFromLine(GetPoint(t.PNum(j)),GetPoint(t.PNumMod(j+1)),p);
if (dist < mindist)
{
mindist = dist;
fedg.i1 = t.PNum(j);
fedg.i2 = t.PNumMod(j+1);
}
}
}
}
return fedg;
}
void STLGeometry :: BuildSelectedMultiEdge(twoint ep)
{
if (edgedata->Size() == 0 ||
!GetEPPSize())
{
return;
}
selectedmultiedge.SetSize(0);
int tenum = GetTopEdgeNum (ep.i1, ep.i2);
if (edgedata->Get(tenum).GetStatus() == ED_UNDEFINED)
{
twoint epnew = GetNearestSelectedDefinedEdge();
if (epnew.i1)
{
ep = epnew;
tenum = GetTopEdgeNum (ep.i1, ep.i2);
}
}
selectedmultiedge.Append(twoint(ep));
if (edgedata->Get(tenum).GetStatus() == ED_UNDEFINED)
{
return;
}
edgedata->BuildLineWithEdge(ep.i1,ep.i2,selectedmultiedge);
}
void STLGeometry :: BuildSelectedEdge(twoint ep)
{
if (edgedata->Size() == 0 ||
!GetEPPSize())
{
return;
}
selectedmultiedge.SetSize(0);
selectedmultiedge.Append(twoint(ep));
}
void STLGeometry :: BuildSelectedCluster(twoint ep)
{
if (edgedata->Size() == 0 ||
!GetEPPSize())
{
return;
}
selectedmultiedge.SetSize(0);
int tenum = GetTopEdgeNum (ep.i1, ep.i2);
if (edgedata->Get(tenum).GetStatus() == ED_UNDEFINED)
{
twoint epnew = GetNearestSelectedDefinedEdge();
if (epnew.i1)
{
ep = epnew;
tenum = GetTopEdgeNum (ep.i1, ep.i2);
}
}
selectedmultiedge.Append(twoint(ep));
if (edgedata->Get(tenum).GetStatus() == ED_UNDEFINED)
{
return;
}
edgedata->BuildClusterWithEdge(ep.i1,ep.i2,selectedmultiedge);
}
void STLGeometry :: ImportEdges()
{
StoreEdgeData();
PrintMessage(5, "import edges from file 'edges.ng'");
ifstream fin("edges.ng");
int ne;
fin >> ne;
NgArray<Point<3> > eps;
int i;
Point<3> p;
for (i = 1; i <= 2*ne; i++)
{
fin >> p(0);
fin >> p(1);
fin >> p(2);
eps.Append(p);
}
AddEdges(eps);
}
void STLGeometry :: AddEdges(const NgArray<Point<3> >& eps)
{
int i;
int ne = eps.Size()/2;
NgArray<int> epsi;
Box<3> bb = GetBoundingBox();
bb.Increase(1);
Point3dTree ptree (bb.PMin(),
bb.PMax());
NgArray<int> pintersect;
double gtol = GetBoundingBox().Diam()/1.E10;
Point<3> p;
for (i = 1; i <= GetNP(); i++)
{
p = GetPoint(i);
ptree.Insert (p, i);
}
int error = 0;
for (i = 1; i <= 2*ne; i++)
{
p = eps.Get(i);
Point3d pmin = p - Vec3d (gtol, gtol, gtol);
Point3d pmax = p + Vec3d (gtol, gtol, gtol);
ptree.GetIntersecting (pmin, pmax, pintersect);
if (pintersect.Size() > 1)
{
PrintError("Found too much points in epsilon-dist");
error = 1;
}
else if (pintersect.Size() == 0)
{
error = 1;
PrintError("edgepoint does not exist!");
PrintMessage(5,"p=",Point3d(eps.Get(i)));
}
else
{
epsi.Append(pintersect.Get(1));
}
}
if (error) return;
int en;
for (i = 1; i <= ne; i++)
{
if (epsi.Get(2*i-1) == epsi.Get(2*i)) {PrintError("Edge with zero length!");}
else
{
en = edgedata->GetEdgeNum(epsi.Get(2*i-1),epsi.Get(2*i));
edgedata->Elem(en).SetStatus (ED_CONFIRMED);
}
}
}
void STLGeometry :: ImportExternalEdges(const char * filename)
{
//AVL edges!!!!!!
ifstream inf (filename);
char ch;
//int cnt = 0;
int records, units, i, j;
PrintFnStart("Import edges from ",filename);
const int flen=30;
char filter[flen+1];
filter[flen] = 0;
char buf[20];
NgArray<Point3d> importpoints;
NgArray<int> importlines;
NgArray<int> importpnums;
while (inf.good())
{
inf.get(ch);
// (*testout) << cnt << ": " << ch << endl;
for (i = 0; i < flen; i++)
filter[i] = filter[i+1];
filter[flen-1] = ch;
// (*testout) << filter << endl;
if (strcmp (filter+flen-7, "RECORDS") == 0)
{
inf.get(ch); // '='
inf >> records;
}
if (strcmp (filter+flen-5, "UNITS") == 0)
{
inf.get(ch); // '='
inf >> units;
}
if (strcmp (filter+flen-17, "EDGE NODE NUMBERS") == 0)
{
int nodenr;
importlines.SetSize (units);
for (i = 1; i <= units; i++)
{
inf >> nodenr;
importlines.Elem(i) = nodenr;
// (*testout) << nodenr << endl;
}
}
if (strcmp (filter+flen-23, "EDGE POINT COORD IN DIR") == 0)
{
int coord;
inf >> coord;
importpoints.SetSize (units);
inf >> ch;
inf.putback (ch);
for (i = 1; i <= units; i++)
{
for (j = 0; j < 12; j++)
inf.get (buf[j]);
buf[12] = 0;
importpoints.Elem(i).X(coord) = 1000 * atof (buf);
}
}
}
/*
(*testout) << "lines: " << endl;
for (i = 1; i <= importlines.Size(); i++)
(*testout) << importlines.Get(i) << endl;
(*testout) << "points: " << endl;
for (i = 1; i <= importpoints.Size(); i++)
(*testout) << importpoints.Get(i) << endl;
*/
importpnums.SetSize (importpoints.Size());
Box3d bb (GetBoundingBox().PMin() + Vec3d (-1,-1,-1),
GetBoundingBox().PMax() + Vec3d (1, 1, 1));
Point3dTree ptree (bb.PMin(),
bb.PMax());
PrintMessage(7,"stl - bb: ",bb.PMin(), " - ", bb.PMax());
Box3d ebb;
ebb.SetPoint (importpoints.Get(1));
for (i = 1; i <= importpoints.Size(); i++)
ebb.AddPoint (importpoints.Get(i));
PrintMessage(7,"edgep - bb: ", ebb.PMin(), " - ", ebb.PMax());
NgArray<int> pintersect;
double gtol = GetBoundingBox().Diam()/1.E6;
for (i = 1; i <= GetNP(); i++)
{
Point3d p = GetPoint(i);
// (*testout) << "stlpt: " << p << endl;
ptree.Insert (p, i);
}
for (i = 1; i <= importpoints.Size(); i++)
{
Point3d p = importpoints.Get(i);
Point3d pmin = p - Vec3d (gtol, gtol, gtol);
Point3d pmax = p + Vec3d (gtol, gtol, gtol);
ptree.GetIntersecting (pmin, pmax, pintersect);
if (pintersect.Size() > 1)
{
importpnums.Elem(i) = 0;
PrintError("Found too many points in epsilon-dist");
}
else if (pintersect.Size() == 0)
{
importpnums.Elem(i) = 0;
PrintError("Edgepoint does not exist!");
}
else
{
importpnums.Elem(i) = pintersect.Get(1);
}
}
// if (!error)
{
PrintMessage(7,"found all edge points in stl file");
StoreEdgeData();
int oldp = 0;
for (i = 1; i <= importlines.Size(); i++)
{
int newp = importlines.Get(i);
if (!importpnums.Get(abs(newp)))
newp = 0;
if (oldp && newp)
{
int en = edgedata->GetEdgeNum(importpnums.Get(oldp),
importpnums.Get(abs(newp)));
edgedata->Elem(en).SetStatus (ED_CONFIRMED);
}
if (newp < 0)
oldp = 0;
else
oldp = newp;
}
}
}
void STLGeometry :: ExportEdges()
{
PrintFnStart("Save edges to file 'edges.ng'");
ofstream fout("edges.ng");
fout.precision(16);
int n = edgedata->GetNConfEdges();
fout << n << endl;
int i;
for (i = 1; i <= edgedata->Size(); i++)
{
if (edgedata->Get(i).GetStatus() == ED_CONFIRMED)
{
const STLTopEdge & e = edgedata->Get(i);
fout << GetPoint(e.PNum(1))(0) << " " << GetPoint(e.PNum(1))(1) << " " << GetPoint(e.PNum(1))(2) << endl;
fout << GetPoint(e.PNum(2))(0) << " " << GetPoint(e.PNum(2))(1) << " " << GetPoint(e.PNum(2))(2) << endl;
}
}
}
void STLGeometry :: LoadEdgeData(const filesystem::path & filename)
{
StoreEdgeData();
PrintFnStart("Load edges from file '", filename, "'");
ifstream fin(filename);
edgedata->Read(fin);
// calcedgedataanglesnew = 1;
}
void STLGeometry :: SaveEdgeData(const filesystem::path & filename)
{
PrintFnStart("save edges to file '", filename, "'");
ofstream fout(filename);
edgedata->Write(fout);
}
/*
void STLGeometry :: SaveExternalEdges()
{
ofstream fout("externaledgesp3.ng");
fout.precision(16);
int n = NOExternalEdges();
fout << n << endl;
int i;
for (i = 1; i <= n; i++)
{
twoint e = GetExternalEdge(i);
fout << GetPoint(e.i1)(0) << " " << GetPoint(e.i1)(1) << " " << GetPoint(e.i1)(2) << endl;
fout << GetPoint(e.i2)(0) << " " << GetPoint(e.i2)(1) << " " << GetPoint(e.i2)(2) << endl;
}
}
*/
void STLGeometry :: StoreExternalEdges()
{
storedexternaledges.SetSize(0);
undoexternaledges = 1;
int i;
for (i = 1; i <= externaledges.Size(); i++)
{
storedexternaledges.Append(externaledges.Get(i));
}
}
void STLGeometry :: UndoExternalEdges()
{
if (!undoexternaledges)
{
PrintMessage(1, "undo not further possible!");
return;
}
RestoreExternalEdges();
undoexternaledges = 0;
}
void STLGeometry :: RestoreExternalEdges()
{
externaledges.SetSize(0);
int i;
for (i = 1; i <= storedexternaledges.Size(); i++)
{
externaledges.Append(storedexternaledges.Get(i));
}
}
void STLGeometry :: AddExternalEdgeAtSelected()
{
StoreExternalEdges();
if (GetSelectTrig() >= 1 && GetSelectTrig() <= GetNT())
{
int ap1 = GetTriangle(GetSelectTrig()).PNum(GetNodeOfSelTrig());
int ap2 = GetTriangle(GetSelectTrig()).PNumMod(GetNodeOfSelTrig()+1);
if (!IsExternalEdge(ap1,ap2)) {AddExternalEdge(ap1,ap2);}
}
}
void STLGeometry :: AddClosedLinesToExternalEdges()
{
StoreExternalEdges();
int i, j;
for (i = 1; i <= GetNLines(); i++)
{
STLLine* l = GetLine(i);
if (l->StartP() == l->EndP())
{
for (j = 1; j < l->NP(); j++)
{
int ap1 = l->PNum(j);
int ap2 = l->PNum(j+1);
if (!IsExternalEdge(ap1,ap2)) {AddExternalEdge(ap1,ap2);}
}
}
}
}
void STLGeometry :: AddLongLinesToExternalEdges()
{
StoreExternalEdges();
double diamfact = stldoctor.dirtytrigfact;
double diam = GetBoundingBox().Diam();
int i, j;
for (i = 1; i <= GetNLines(); i++)
{
STLLine* l = GetLine(i);
if (l->GetLength(points) >= diamfact*diam)
{
for (j = 1; j < l->NP(); j++)
{
int ap1 = l->PNum(j);
int ap2 = l->PNum(j+1);
if (!IsExternalEdge(ap1,ap2)) {AddExternalEdge(ap1,ap2);}
}
}
}
}
void STLGeometry :: AddAllNotSingleLinesToExternalEdges()
{
StoreExternalEdges();
int i, j;
for (i = 1; i <= GetNLines(); i++)
{
STLLine* l = GetLine(i);
if (GetNEPP(l->StartP()) > 1 || GetNEPP(l->EndP()) > 1)
{
for (j = 1; j < l->NP(); j++)
{
int ap1 = l->PNum(j);
int ap2 = l->PNum(j+1);
if (!IsExternalEdge(ap1,ap2)) {AddExternalEdge(ap1,ap2);}
}
}
}
}
void STLGeometry :: DeleteDirtyExternalEdges()
{
//delete single triangle edges and single edge-lines in clusters"
StoreExternalEdges();
int i, j;
for (i = 1; i <= GetNLines(); i++)
{
STLLine* l = GetLine(i);
if (l->NP() <= 3 || (l->StartP() == l->EndP() && l->NP() == 4))
{
for (j = 1; j < l->NP(); j++)
{
int ap1 = l->PNum(j);
int ap2 = l->PNum(j+1);
if (IsExternalEdge(ap1,ap2)) {DeleteExternalEdge(ap1,ap2);}
}
}
}
}
void STLGeometry :: AddExternalEdgesFromGeomLine()
{
StoreExternalEdges();
if (GetSelectTrig() >= 1 && GetSelectTrig() <= GetNT())
{
int ap1 = GetTriangle(GetSelectTrig()).PNum(GetNodeOfSelTrig());
int ap2 = GetTriangle(GetSelectTrig()).PNumMod(GetNodeOfSelTrig()+1);
if (IsEdge(ap1,ap2))
{
int edgenum = IsEdgeNum(ap1,ap2);
if (!IsExternalEdge(ap1,ap2)) {AddExternalEdge(ap1,ap2);}
int noend = 1;
int startp = ap1;
int laste = edgenum;
int np1, np2;
while (noend)
{
if (GetNEPP(startp) == 2)
{
if (GetEdgePP(startp,1) != laste) {laste = GetEdgePP(startp,1);}
else {laste = GetEdgePP(startp,2);}
np1 = GetEdge(laste).PNum(1);
np2 = GetEdge(laste).PNum(2);
if (!IsExternalEdge(np1, np2)) {AddExternalEdge(np1, np2);}
else {noend = 0;}
if (np1 != startp) {startp = np1;}
else {startp = np2;}
}
else {noend = 0;}
}
startp = ap2;
laste = edgenum;
noend = 1;
while (noend)
{
if (GetNEPP(startp) == 2)
{
if (GetEdgePP(startp,1) != laste) {laste = GetEdgePP(startp,1);}
else {laste = GetEdgePP(startp,2);}
np1 = GetEdge(laste).PNum(1);
np2 = GetEdge(laste).PNum(2);
if (!IsExternalEdge(np1, np2)) {AddExternalEdge(np1, np2);}
else {noend = 0;}
if (np1 != startp) {startp = np1;}
else {startp = np2;}
}
else {noend = 0;}
}
}
}
}
void STLGeometry :: ClearEdges()
{
edgesfound = 0;
edges.SetSize(0);
//edgedata->SetSize(0);
// externaledges.SetSize(0);
edgesperpoint.SetSize(0);
undoexternaledges = 0;
}
void STLGeometry :: STLDoctorBuildEdges(const STLParameters& stlparam)
{
// if (!trigsconverted) {return;}
ClearEdges();
meshlines.SetSize(0);
FindEdgesFromAngles(stlparam);
}
void STLGeometry :: DeleteExternalEdgeAtSelected()
{
StoreExternalEdges();
if (GetSelectTrig() >= 1 && GetSelectTrig() <= GetNT())
{
int ap1 = GetTriangle(GetSelectTrig()).PNum(GetNodeOfSelTrig());
int ap2 = GetTriangle(GetSelectTrig()).PNumMod(GetNodeOfSelTrig()+1);
if (IsExternalEdge(ap1,ap2)) {DeleteExternalEdge(ap1,ap2);}
}
}
void STLGeometry :: DeleteExternalEdgeInVicinity()
{
StoreExternalEdges();
if (!stldoctor.showvicinity || vicinity.Size() != GetNT()) {return;}
int i, j, ap1, ap2;
for (i = 1; i <= GetNT(); i++)
{
if (vicinity.Elem(i))
{
for (j = 1; j <= 3; j++)
{
ap1 = GetTriangle(i).PNum(j);
ap2 = GetTriangle(i).PNumMod(j+1);
if (IsExternalEdge(ap1,ap2))
{
DeleteExternalEdge(ap1,ap2);
}
}
}
}
}
void STLGeometry :: BuildExternalEdgesFromEdges()
{
StoreExternalEdges();
if (GetNE() == 0) {PrintWarning("Edges possibly not generated!");}
int i;
externaledges.SetSize(0);
for (i = 1; i <= GetNE(); i++)
{
STLEdge e = GetEdge(i);
AddExternalEdge(e.PNum(1), e.PNum(2));
}
}
void STLGeometry :: AddExternalEdge(int ap1, int ap2)
{
externaledges.Append(twoint(ap1,ap2));
}
void STLGeometry :: DeleteExternalEdge(int ap1, int ap2)
{
int i;
int found = 0;
for (i = 1; i <= NOExternalEdges(); i++)
{
if ((GetExternalEdge(i).i1 == ap1 && GetExternalEdge(i).i2 == ap2) ||
(GetExternalEdge(i).i1 == ap2 && GetExternalEdge(i).i2 == ap1)) {found = 1;};
if (found && i < NOExternalEdges())
{
externaledges.Elem(i) = externaledges.Get(i+1);
}
}
if (!found) {PrintWarning("edge not found");}
else
{
externaledges.SetSize(externaledges.Size()-1);
}
}
int STLGeometry :: IsExternalEdge(int ap1, int ap2)
{
int i;
for (i = 1; i <= NOExternalEdges(); i++)
{
if ((GetExternalEdge(i).i1 == ap1 && GetExternalEdge(i).i2 == ap2) ||
(GetExternalEdge(i).i1 == ap2 && GetExternalEdge(i).i2 == ap1)) {return 1;};
}
return 0;
}
void STLGeometry :: DestroyDirtyTrigs()
{
PrintFnStart("Destroy dirty triangles");
PrintMessage(5,"original number of triangles=", GetNT());
//destroy every triangle with other than 3 neighbours;
int changed = 1;
int i, j, k;
while (changed)
{
changed = 0;
Clear();
for (i = 1; i <= GetNT(); i++)
{
int dirty = NONeighbourTrigs(i) < 3;
for (j = 1; j <= 3; j++)
{
int pnum = GetTriangle(i).PNum(j);
/*
if (pnum == 1546)
{
// for (k = 1; k <= NOTrigsPerPoint(pnum); k++)
}
*/
if (NOTrigsPerPoint(pnum) <= 2)
dirty = 1;
}
int pi1 = GetTriangle(i).PNum(1);
int pi2 = GetTriangle(i).PNum(2);
int pi3 = GetTriangle(i).PNum(3);
if (pi1 == pi2 || pi1 == pi3 || pi2 == pi3)
{
PrintMessage(5,"triangle with Volume 0: ", i, " nodes: ", pi1, ", ", pi2, ", ", pi3);
dirty = 1;
}
if (dirty)
{
for (k = i+1; k <= GetNT(); k++)
{
trias[k-1] = trias[k];
// readtrias: not longer permanent, JS
// readtrias.Elem(k-1) = readtrias.Get(k);
}
int size = GetNT();
trias.SetSize(size-1);
// readtrias.SetSize(size-1);
changed = 1;
break;
}
}
}
FindNeighbourTrigs();
PrintMessage(5,"final number of triangles=", GetNT());
}
void STLGeometry :: CalcNormalsFromGeometry()
{
int i;
for (i = 1; i <= GetNT(); i++)
{
const STLTriangle & tr = GetTriangle(i);
const Point3d& ap1 = GetPoint(tr.PNum(1));
const Point3d& ap2 = GetPoint(tr.PNum(2));
const Point3d& ap3 = GetPoint(tr.PNum(3));
Vec3d normal = Cross (ap2-ap1, ap3-ap1);
if (normal.Length() != 0)
{
normal /= (normal.Length());
}
GetTriangle(i).SetNormal(normal);
}
PrintMessage(5,"Normals calculated from geometry!!!");
calcedgedataanglesnew = 1;
}
void STLGeometry :: SetSelectTrig(int trig)
{
stldoctor.selecttrig = trig;
}
int STLGeometry :: GetSelectTrig() const
{
return stldoctor.selecttrig;
}
void STLGeometry :: SetNodeOfSelTrig(int n)
{
stldoctor.nodeofseltrig = n;
}
int STLGeometry :: GetNodeOfSelTrig() const
{
return stldoctor.nodeofseltrig;
}
void STLGeometry :: MoveSelectedPointToMiddle()
{
if (GetSelectTrig() >= 1 && GetSelectTrig() <= GetNT())
{
int p = GetTriangle(GetSelectTrig()).PNum(GetNodeOfSelTrig());
Point<3> pm(0.,0.,0.); //Middlevector;
Point<3> p0(0.,0.,0.);
PrintMessage(5,"original point=", Point3d(GetPoint(p)));
int i;
int cnt = 0;
for (i = 1; i <= trigsperpoint.EntrySize(p); i++)
{
const STLTriangle& tr = GetTriangle(trigsperpoint.Get(p,i));
int j;
for (j = 1; j <= 3; j++)
{
if (tr.PNum(j) != p)
{
cnt++;
pm(0) += GetPoint(tr.PNum(j))(0);
pm(1) += GetPoint(tr.PNum(j))(1);
pm(2) += GetPoint(tr.PNum(j))(2);
}
}
}
Point<3> origp = GetPoint(p);
double fact = 0.2;
SetPoint(p, p0 + fact*(1./(double)cnt)*(pm-p0)+(1.-fact)*(origp-p0));
PrintMessage(5,"middle point=", Point3d (GetPoint(p)));
PrintMessage(5,"moved point ", Point3d (p));
}
}
void STLGeometry :: PrintSelectInfo()
{
//int trig = GetSelectTrig();
//int p = GetTriangle(trig).PNum(GetNodeOfSelTrig());
PrintMessage(1,"touch triangle ", GetSelectTrig()
, ", local node ", GetNodeOfSelTrig()
, " (=", int(GetTriangle(GetSelectTrig()).PNum(GetNodeOfSelTrig())), ")");
if (AtlasMade() && GetSelectTrig() >= 1 && GetSelectTrig() <= GetNT())
{
PrintMessage(1," chartnum=", int(GetChartNr(GetSelectTrig())));
/*
PointBetween(Center(Center(GetPoint(GetTriangle(270).PNum(1)),
GetPoint(GetTriangle(270).PNum(2))),
GetPoint(GetTriangle(270).PNum(3))),270,
Center(Center(GetPoint(GetTriangle(trig).PNum(1)),
GetPoint(GetTriangle(trig).PNum(2))),
GetPoint(GetTriangle(trig).PNum(3))),trig);
*/
//PointBetween(Point3d(5.7818, 7.52768, 4.14879),260,Point3d(6.80292, 6.55392, 4.70184),233);
}
}
void STLGeometry :: ShowSelectedTrigChartnum()
{
int st = GetSelectTrig();
if (st >= 1 && st <= GetNT() && AtlasMade())
PrintMessage(1,"selected trig ", st, " has chartnumber ", int(GetChartNr(st)));
}
void STLGeometry :: ShowSelectedTrigCoords()
{
int st = GetSelectTrig();
/*
//testing!!!!
NgArray<int> trigs;
GetSortedTrianglesAroundPoint(GetTriangle(st).PNum(GetNodeOfSelTrig()),st,trigs);
*/
if (st >= 1 && st <= GetNT())
{
PrintMessage(1, "coordinates of selected trig ", st, ":");
PrintMessage(1, " p1 = ", int(GetTriangle(st).PNum(1)), " = ",
Point3d (GetPoint(GetTriangle(st).PNum(1))));
PrintMessage(1, " p2 = ", int(GetTriangle(st).PNum(2)), " = ",
Point3d (GetPoint(GetTriangle(st).PNum(2))));
PrintMessage(1, " p3 = ", int(GetTriangle(st).PNum(3)), " = ",
Point3d (GetPoint(GetTriangle(st).PNum(3))));
}
}
void STLGeometry :: LoadMarkedTrigs()
{
PrintFnStart("load marked trigs from file 'markedtrigs.ng'");
ifstream fin("markedtrigs.ng");
int n;
fin >> n;
if (n != GetNT() || n == 0) {PrintError("Not a suitable marked-trig-file!"); return;}
int i, m;
for (i = 1; i <= n; i++)
{
fin >> m;
SetMarkedTrig(i, m);
}
fin >> n;
if (n != 0)
{
Point<3> ap1, ap2;
for (i = 1; i <= n; i++)
{
fin >> ap1(0); fin >> ap1(1); fin >> ap1(2);
fin >> ap2(0); fin >> ap2(1); fin >> ap2(2);
AddMarkedSeg(ap1,ap2);
}
}
}
void STLGeometry :: SaveMarkedTrigs()
{
PrintFnStart("save marked trigs to file 'markedtrigs.ng'");
ofstream fout("markedtrigs.ng");
int n = GetNT();
fout << n << endl;
int i;
for (i = 1; i <= n; i++)
{
fout << IsMarkedTrig(i) << "\n";
}
n = GetNMarkedSegs();
fout << n << endl;
Point<3> ap1,ap2;
for (i = 1; i <= n; i++)
{
GetMarkedSeg(i,ap1,ap2);
fout << ap1(0) << " " << ap1(1) << " " << ap1(2) << " ";
fout << ap2(0) << " " << ap2(1) << " " << ap2(2) << " " << "\n";
}
}
void STLGeometry :: NeighbourAnglesOfSelectedTrig()
{
int st = GetSelectTrig();
if (st >= 1 && st <= GetNT())
{
int i;
PrintMessage(1,"Angle to triangle ", st, ":");
for (i = 1; i <= NONeighbourTrigs(st); i++)
{
PrintMessage(1," triangle ", int(NeighbourTrig(st,i)), ": angle = ",
180./M_PI*GetAngle(st, NeighbourTrig(st,i)), "°",
", calculated = ", 180./M_PI*Angle(GetTriangle(st).GeomNormal(points),
GetTriangle(NeighbourTrig(st,i)).GeomNormal(points)), "°");
}
}
}
void STLGeometry :: GetVicinity(int starttrig, int size, NgArray<int>& vic)
{
if (starttrig == 0 || starttrig > GetNT()) {return;}
NgArray<int> vicarray;
vicarray.SetSize(GetNT());
int i;
for (i = 1; i <= vicarray.Size(); i++)
{
vicarray.Elem(i) = 0;
}
vicarray.Elem(starttrig) = 1;
int j = 0,k;
NgArray <int> list1;
list1.SetSize(0);
NgArray <int> list2;
list2.SetSize(0);
list1.Append(starttrig);
while (j < size)
{
j++;
for (i = 1; i <= list1.Size(); i++)
{
for (k = 1; k <= NONeighbourTrigs(i); k++)
{
int nbtrig = NeighbourTrig(list1.Get(i),k);
if (nbtrig && vicarray.Get(nbtrig) == 0)
{
list2.Append(nbtrig);
vicarray.Elem(nbtrig) = 1;
}
}
}
list1.SetSize(0);
for (i = 1; i <= list2.Size(); i++)
{
list1.Append(list2.Get(i));
}
list2.SetSize(0);
}
vic.SetSize(0);
for (i = 1; i <= vicarray.Size(); i++)
{
if (vicarray.Get(i)) {vic.Append(i);}
}
}
void STLGeometry :: CalcVicinity(int starttrig)
{
if (starttrig == 0 || starttrig > GetNT()) {return;}
vicinity.SetSize(GetNT());
if (!stldoctor.showvicinity) {return;}
int i;
for (i = 1; i <= vicinity.Size(); i++)
{
vicinity.Elem(i) = 0;
}
vicinity.Elem(starttrig) = 1;
int j = 0,k;
NgArray <int> list1;
list1.SetSize(0);
NgArray <int> list2;
list2.SetSize(0);
list1.Append(starttrig);
// int cnt = 1;
while (j < stldoctor.vicinity)
{
j++;
for (i = 1; i <= list1.Size(); i++)
{
for (k = 1; k <= NONeighbourTrigs(i); k++)
{
int nbtrig = NeighbourTrig(list1.Get(i),k);
if (nbtrig && vicinity.Get(nbtrig) == 0)
{
list2.Append(nbtrig);
vicinity.Elem(nbtrig) = 1;
//cnt++;
}
}
}
list1.SetSize(0);
for (i = 1; i <= list2.Size(); i++)
{
list1.Append(list2.Get(i));
}
list2.SetSize(0);
}
}
int STLGeometry :: Vicinity(int trig) const
{
if (trig <= vicinity.Size() && trig >=1)
{
return vicinity.Get(trig);
}
else {PrintSysError("In STLGeometry::Vicinity");}
return 0;
}
void STLGeometry :: InitMarkedTrigs()
{
markedtrigs.SetSize(GetNT());
int i;
for (i = 1; i <= GetNT(); i++)
{
SetMarkedTrig(i, 0);
}
}
void STLGeometry :: MarkDirtyTrigs(const STLParameters& stlparam)
{
PrintFnStart("mark dirty trigs");
int i,j;
markedtrigs.SetSize(GetNT());
for (i = 1; i <= GetNT(); i++)
{
SetMarkedTrig(i, 0);
}
int found;
double dirtyangle = stlparam.yangle/2./180.*M_PI;
int cnt = 0;
for (i = 1; i <= GetNT(); i++)
{
found = 0;
for (j = 1; j <= NONeighbourTrigs(i); j++)
{
if (GetAngle(i, NeighbourTrig(i,j)) > dirtyangle)
{
found++;
}
}
if (found && GetTriangle(i).MinHeight(points) <
stldoctor.dirtytrigfact*GetTriangle(i).MaxLength(points))
{
SetMarkedTrig(i, 1); cnt++;
}
/*
else if (found == 3)
{
SetMarkedTrig(i, 1); cnt++;
}
*/
}
PrintMessage(1, "marked ", cnt, " dirty trigs");
}
void STLGeometry :: MarkTopErrorTrigs()
{
int cnt = 0;
markedtrigs.SetSize(GetNT());
for (int i = 1; i <= GetNT(); i++)
{
const STLTriangle & trig = GetTriangle(i);
SetMarkedTrig(i, trig.flags.toperror);
if (trig.flags.toperror) cnt++;
}
PrintMessage(1,"marked ", cnt, " inconsistent triangles");
}
double STLGeometry :: CalcTrigBadness(int i)
{
int j;
double maxbadness = 0;
STLPointId ap1, ap2;
for (j = 1; j <= NONeighbourTrigs(i); j++)
{
GetTriangle(i).GetNeighbourPoints(GetTriangle(NeighbourTrig(i,j)), ap1, ap2);
if (!IsEdge(ap1,ap2) && GetGeomAngle(i, NeighbourTrig(i,j)) > maxbadness)
{
maxbadness = GetGeomAngle(i, NeighbourTrig(i,j));
}
}
return maxbadness;
}
void STLGeometry :: GeomSmoothRevertedTrigs(const STLParameters& stlparam)
{
//double revertedangle = stldoctor.smoothangle/180.*M_PI;
double fact = stldoctor.dirtytrigfact;
MarkRevertedTrigs(stlparam);
int i, j, k, l, p;
for (i = 1; i <= GetNT(); i++)
{
if (IsMarkedTrig(i))
{
for (j = 1; j <= 3; j++)
{
double origbadness = CalcTrigBadness(i);
p = GetTriangle(i).PNum(j);
Point<3> pm(0.,0.,0.); //Middlevector;
Point<3> p0(0.,0.,0.);
int cnt = 0;
for (k = 1; k <= trigsperpoint.EntrySize(p); k++)
{
const STLTriangle& tr = GetTriangle(trigsperpoint.Get(p,k));
for (l = 1; l <= 3; l++)
{
if (tr.PNum(l) != p)
{
cnt++;
pm(0) += GetPoint(tr.PNum(l))(0);
pm(1) += GetPoint(tr.PNum(l))(1);
pm(2) += GetPoint(tr.PNum(l))(2);
}
}
}
Point3d origp = GetPoint(p);
Point3d newp = p0 + fact*(1./(double)cnt)*(pm-p0)+(1.-fact)*(origp-p0);
SetPoint(p, newp);
if (CalcTrigBadness(i) > 0.9*origbadness) {SetPoint(p,origp); PrintDot('f');}
else {PrintDot('s');}
}
}
}
MarkRevertedTrigs(stlparam);
}
void STLGeometry :: MarkRevertedTrigs(const STLParameters& stlparam)
{
int i,j;
if (edgesperpoint.Size() != GetNP()) {BuildEdges(stlparam);}
PrintFnStart("mark reverted trigs");
InitMarkedTrigs();
int found;
double revertedangle = stldoctor.smoothangle/180.*M_PI;
int cnt = 0;
STLPointId ap1, ap2;
for (i = 1; i <= GetNT(); i++)
{
found = 0;
for (j = 1; j <= NONeighbourTrigs(i); j++)
{
GetTriangle(i).GetNeighbourPoints(GetTriangle(NeighbourTrig(i,j)), ap1, ap2);
if (!IsEdge(ap1,ap2))
{
if (GetGeomAngle(i, NeighbourTrig(i,j)) > revertedangle)
{
found = 1;
break;
}
}
}
if (found)
{
SetMarkedTrig(i, 1); cnt++;
}
}
PrintMessage(5, "found ", cnt, " reverted trigs");
}
void STLGeometry :: SmoothDirtyTrigs(const STLParameters& stlparam)
{
PrintFnStart("smooth dirty trigs");
MarkDirtyTrigs(stlparam);
int i,j;
int changed = 1;
STLPointId ap1, ap2;
while (changed)
{
changed = 0;
for (i = 1; i <= GetNT(); i++)
{
if (IsMarkedTrig(i))
{
int foundtrig = 0;
double maxlen = 0;
// JS: darf normalvector nicht ueber kurze Seite erben
maxlen = GetTriangle(i).MaxLength(GetPoints()) / 2.1; //JG: bei flachem dreieck auch kurze Seite
for (j = 1; j <= NONeighbourTrigs(i); j++)
{
if (!IsMarkedTrig(NeighbourTrig(i,j)))
{
GetTriangle(i).GetNeighbourPoints(GetTriangle(NeighbourTrig(i,j)),ap1,ap2);
if (Dist(GetPoint(ap1),GetPoint(ap2)) >= maxlen)
{
foundtrig = NeighbourTrig(i,j);
maxlen = Dist(GetPoint(ap1),GetPoint(ap2));
}
}
}
if (foundtrig)
{
GetTriangle(i).SetNormal(GetTriangle(foundtrig).Normal());
changed = 1;
SetMarkedTrig(i,0);
}
}
}
}
calcedgedataanglesnew = 1;
MarkDirtyTrigs(stlparam);
int cnt = 0;
for (i = 1; i <= GetNT(); i++)
{
if (IsMarkedTrig(i)) {cnt++;}
}
PrintMessage(5,"NO marked dirty trigs=", cnt);
}
int STLGeometry :: IsMarkedTrig(int trig) const
{
if (trig <= markedtrigs.Size() && trig >=1)
{
return markedtrigs.Get(trig);
}
else {PrintSysError("In STLGeometry::IsMarkedTrig");}
return 0;
}
void STLGeometry :: SetMarkedTrig(int trig, int num)
{
if (trig <= markedtrigs.Size() && trig >=1)
{
markedtrigs.Elem(trig) = num;
}
else {PrintSysError("In STLGeometry::SetMarkedTrig");}
}
void STLGeometry :: Clear()
{
PrintFnStart("Clear");
surfacemeshed = 0;
surfaceoptimized = 0;
volumemeshed = 0;
selectedmultiedge.SetSize(0);
meshlines.SetSize(0);
// neighbourtrigs.SetSize(0);
outerchartspertrig.SetSize(0);
atlas.SetSize(0);
ClearMarkedSegs();
ClearSpiralPoints();
ClearLineEndPoints();
SetSelectTrig(0);
SetNodeOfSelTrig(1);
facecnt = 0;
SetThreadPercent(100.);
ClearEdges();
}
double STLGeometry :: Area()
{
if (area >= 0) return area;
area = 0;
for (int i = 1; i <= GetNT(); i++)
area += GetTriangle(i).Area(points);
return area;
}
double STLGeometry :: GetAngle(int t1, int t2)
{
return Angle(GetTriangle(t1).Normal(),GetTriangle(t2).Normal());
}
double STLGeometry :: GetGeomAngle(int t1, int t2)
{
Vec3d n1 = GetTriangle(t1).GeomNormal(points);
Vec3d n2 = GetTriangle(t2).GeomNormal(points);
return Angle(n1,n2);
}
void STLGeometry :: InitSTLGeometry(const NgArray<STLReadTriangle> & readtrias)
{
PrintFnStart("Init STL Geometry");
STLTopology::InitSTLGeometry(readtrias);
int i, k;
//const double geometry_tol_fact = 1E8; //distances lower than max_box_size/tol are ignored
int np = GetNP();
PrintMessage(5,"NO points= ", GetNP());
normals.SetSize(GetNP());
NgArray<int> normal_cnt(GetNP()); // counts number of added normals in a point
for (i = 1; i <= np; i++)
{
normal_cnt.Elem(i) = 0;
normals.Elem(i) = Vec3d (0,0,0);
}
for(i = 1; i <= GetNT(); i++)
{
// STLReadTriangle t = GetReadTriangle(i);
// STLTriangle st;
Vec<3> n = GetTriangle(i).Normal ();
for (k = 1; k <= 3; k++)
{
int pi = GetTriangle(i).PNum(k);
normal_cnt.Elem(pi)++;
SetNormal(pi, GetNormal(pi) + n);
}
}
//normalize the normals
for (i = 1; i <= GetNP(); i++)
{
SetNormal(i,1./(double)normal_cnt.Get(i)*GetNormal(i));
}
trigsconverted = 1;
vicinity.SetSize(GetNT());
markedtrigs.SetSize(GetNT());
for (i = 1; i <= GetNT(); i++)
{
markedtrigs.Elem(i) = 0;
vicinity.Elem(i) = 1;
}
ha_points.SetSize(GetNP());
for (i = 1; i <= GetNP(); i++)
ha_points.Elem(i) = 0;
calcedgedataanglesnew = 0;
edgedatastored = 0;
edgedata->Clear();
if (GetStatus() == STL_ERROR) return;
CalcEdgeData();
CalcEdgeDataAngles();
ClearLineEndPoints();
CheckGeometryOverlapping();
}
void STLGeometry :: TopologyChanged()
{
calcedgedataanglesnew = 1;
}
int STLGeometry :: CheckGeometryOverlapping()
{
PrintMessageCR(3,"Check overlapping geometry ...");
Box<3> geombox = GetBoundingBox();
Point<3> pmin = geombox.PMin();
Point<3> pmax = geombox.PMax();
BoxTree<3> setree(pmin, pmax);
int oltrigs = 0;
markedtrigs.SetSize(GetNT());
for (int i = 1; i <= GetNT(); i++)
SetMarkedTrig(i, 0);
for (int i = 1; i <= GetNT(); i++)
{
const STLTriangle & tri = GetTriangle(i);
Point<3> tpmin = tri.box.PMin();
Point<3> tpmax = tri.box.PMax();
Vec<3> diag = tpmax - tpmin;
tpmax = tpmax + 0.001 * diag;
tpmin = tpmin - 0.001 * diag;
setree.Insert (tpmin, tpmax, i);
}
{
mutex inters_mutex;
ParallelFor( 1, GetNT()+1, [&] (int first, int next)
{
NgArray<int> inters;
for (int i=first; i<next; i++) {
const STLTriangle & tri = GetTriangle(i);
Point<3> tpmin = tri.box.PMin();
Point<3> tpmax = tri.box.PMax();
setree.GetIntersecting (tpmin, tpmax, inters);
for (int j = 1; j <= inters.Size(); j++)
{
const STLTriangle & tri2 = GetTriangle(inters.Get(j));
const Point<3> *trip1[3], *trip2[3];
Point<3> hptri1[3], hptri2[3];
/*
for (k = 1; k <= 3; k++)
{
trip1[k-1] = &GetPoint (tri.PNum(k));
trip2[k-1] = &GetPoint (tri2.PNum(k));
}
*/
for (int k = 0; k < 3; k++)
{
hptri1[k] = GetPoint (tri[k]);
hptri2[k] = GetPoint (tri2[k]);
trip1[k] = &hptri1[k];
trip2[k] = &hptri2[k];
}
if (IntersectTriangleTriangle (&trip1[0], &trip2[0]))
{
lock_guard<mutex> guard(inters_mutex);
{
oltrigs++;
PrintMessage(5,"Intersecting Triangles: trig ",i," with ",inters.Get(j),"!");
SetMarkedTrig(i, 1);
SetMarkedTrig(inters.Get(j), 1);
}
}
}
}
});
}
PrintMessage(3,"Check overlapping geometry ... ", oltrigs, " triangles overlap");
return oltrigs;
}
/*
void STLGeometry :: InitSTLGeometry()
{
STLTopology::InitSTLGeometry();
int i, j, k;
const double geometry_tol_fact = 1E8; //distances lower than max_box_size/tol are ignored
trias.SetSize(0);
points.SetSize(0);
normals.SetSize(0);
NgArray<int> normal_cnt; // counts number of added normals in a point
Box3d bb (GetBoundingBox().PMin() + Vec3d (-1,-1,-1),
GetBoundingBox().PMax() + Vec3d (1, 1, 1));
Point3dTree pointtree (bb.PMin(),
bb.PMax());
NgArray<int> pintersect;
double gtol = GetBoundingBox().CalcDiam()/geometry_tol_fact;
for(i = 1; i <= GetReadNT(); i++)
{
//if (i%500==499) {(*mycout) << (double)i/(double)GetReadNT()*100. << "%" << endl;}
STLReadTriangle t = GetReadTriangle(i);
STLTriangle st;
Vec3d n = t.normal;
for (k = 0; k < 3; k++)
{
Point3d p = t.pts[k];
Point3d pmin = p - Vec3d (gtol, gtol, gtol);
Point3d pmax = p + Vec3d (gtol, gtol, gtol);
pointtree.GetIntersecting (pmin, pmax, pintersect);
if (pintersect.Size() > 1)
(*mycout) << "found too much " << char(7) << endl;
int foundpos = 0;
if (pintersect.Size())
foundpos = pintersect.Get(1);
if (foundpos)
{
normal_cnt[foundpos]++;
SetNormal(foundpos,GetNormal(foundpos)+n);
// (*testout) << "found p " << p << endl;
}
else
{
foundpos = AddPoint(p);
AddNormal(n);
normal_cnt.Append(1);
pointtree.Insert (p, foundpos);
}
//(*mycout) << "foundpos=" << foundpos << endl;
st.pts[k] = foundpos;
}
if ( (st.pts[0] == st.pts[1]) ||
(st.pts[0] == st.pts[2]) ||
(st.pts[1] == st.pts[2]) )
{
(*mycout) << "ERROR: STL Triangle degenerated" << endl;
}
else
{
// do not add ? js
AddTriangle(st);
}
//(*mycout) << "TRIG" << i << " = " << st << endl;
}
//normal the normals
for (i = 1; i <= GetNP(); i++)
{
SetNormal(i,1./(double)normal_cnt[i]*GetNormal(i));
}
trigsconverted = 1;
vicinity.SetSize(GetNT());
markedtrigs.SetSize(GetNT());
for (i = 1; i <= GetNT(); i++)
{
markedtrigs.Elem(i) = 0;
vicinity.Elem(i) = 1;
}
ha_points.SetSize(GetNP());
for (i = 1; i <= GetNP(); i++)
ha_points.Elem(i) = 0;
calcedgedataanglesnew = 0;
edgedatastored = 0;
edgedata->Clear();
CalcEdgeData();
CalcEdgeDataAngles();
ClearLineEndPoints();
(*mycout) << "done" << endl;
}
*/
void STLGeometry :: SetLineEndPoint(int pn)
{
if (pn <1 || pn > lineendpoints.Size()) {PrintSysError("Illegal pnum in SetLineEndPoint!!!"); return; }
lineendpoints.Elem(pn) = 1;
}
int STLGeometry :: IsLineEndPoint(int pn)
{
// return 0;
if (pn <1 || pn > lineendpoints.Size())
{PrintSysError("Illegal pnum in IsLineEndPoint!!!"); return 0;}
return lineendpoints.Get(pn);
}
void STLGeometry :: ClearLineEndPoints()
{
lineendpoints.SetSize(GetNP());
int i;
for (i = 1; i <= GetNP(); i++)
{
lineendpoints.Elem(i) = 0;
}
}
int STLGeometry :: IsEdge(int ap1, int ap2)
{
int i,j;
for (i = 1; i <= GetNEPP(ap1); i++)
{
for (j = 1; j <= GetNEPP(ap2); j++)
{
if (GetEdgePP(ap1,i) == GetEdgePP(ap2,j)) {return 1;}
}
}
return 0;
}
int STLGeometry :: IsEdgeNum(int ap1, int ap2)
{
int i,j;
for (i = 1; i <= GetNEPP(ap1); i++)
{
for (j = 1; j <= GetNEPP(ap2); j++)
{
if (GetEdgePP(ap1,i) == GetEdgePP(ap2,j)) {return GetEdgePP(ap1,i);}
}
}
return 0;
}
void STLGeometry :: BuildEdges(const STLParameters& stlparam)
{
//PrintFnStart("build edges");
edges.SetSize(0);
meshlines.SetSize(0);
FindEdgesFromAngles(stlparam);
}
void STLGeometry :: UseExternalEdges()
{
for (int i = 1; i <= NOExternalEdges(); i++)
AddEdge(GetExternalEdge(i).i1,GetExternalEdge(i).i2);
//BuildEdgesPerPointy();
}
void STLGeometry :: UndoEdgeChange()
{
if (edgedatastored)
{
RestoreEdgeData();
}
else
{
PrintWarning("no edge undo possible");
}
}
void STLGeometry :: StoreEdgeData()
{
// edgedata_store = *edgedata;
edgedata->Store();
edgedatastored = 1;
// put stlgeom-edgedata to stltopology edgedata
/*
int i;
for (i = 1; i <= GetNTE(); i++)
{
const STLTopEdge & topedge = GetTopEdge (i);
int ednum = edgedata->GetEdgeNum (topedge.PNum(1),
topedge.PNum(2));
topedges.Elem(i).SetStatus (edgedata->Get (ednum).status);
}
*/
}
void STLGeometry :: RestoreEdgeData()
{
// *edgedata = edgedata_store;
edgedata->Restore();
edgedatastored=0;
}
void STLGeometry :: CalcEdgeData()
{
PushStatus("Calc Edge Data");
STLPointId np1, np2;
int ecnt = 0;
edgedata->SetSize(GetNT()/2*3);
for (int i = 1; i <= GetNT(); i++)
{
SetThreadPercent((double)i/(double)GetNT()*100.);
const STLTriangle & t1 = GetTriangle(i);
for (int j = 1; j <= NONeighbourTrigs(i); j++)
{
int nbti = NeighbourTrig(i,j);
if (nbti > i)
{
const STLTriangle & t2 = GetTriangle(nbti);
if (t1.IsNeighbourFrom(t2))
{
ecnt++; if (ecnt > edgedata->Size()) {PrintError("In Calc edge data, illegal geometry");}
t1.GetNeighbourPoints(t2,np1,np2);
/* ang = GetAngle(i,nbti);
if (ang < -M_PI) {ang += 2*M_PI;}*/
// edgedata->Add(STLEdgeData(0, np1, np2, i, nbti),ecnt);
edgedata->Elem(ecnt).SetStatus(ED_UNDEFINED);
// edgedata->Elem(ecnt).top = this;
// edgedata->Elem(ecnt).topedgenr = GetTopEdgeNum (np1, np2);
}
}
}
}
//BuildEdgesPerPoint();
PopStatus();
}
void STLGeometry :: CalcEdgeDataAngles()
{
PrintMessageCR (5,"calc edge data angles ... ");
for (int i = 1; i <= GetNTE(); i++)
{
STLTopEdge & edge = GetTopEdge (i);
double cosang = edge.TrigNum(2) == 0 ? 1. :
GetTriangle(edge.TrigNum(1)).Normal() *
GetTriangle(edge.TrigNum(2)).Normal();
edge.SetCosAngle (cosang);
}
for (int i = 1; i <= edgedata->Size(); i++)
{
/*
const STLEdgeData& e = edgedata->Get(i);
ang = GetAngle(e.lt,e.rt);
if (ang < -M_PI) {ang += 2*M_PI;}
edgedata->Elem(i).angle = fabs(ang);
*/
}
PrintMessage (5,"calc edge data angles ... done");
}
void STLGeometry :: FindEdgesFromAngles(const STLParameters& stlparam)
{
// PrintFnStart("find edges from angles");
double min_edge_angle = stlparam.yangle/180.*M_PI;
double cont_min_edge_angle = stlparam.contyangle/180.*M_PI;
double cos_min_edge_angle = cos (min_edge_angle);
double cos_cont_min_edge_angle = cos (cont_min_edge_angle);
if (calcedgedataanglesnew) {CalcEdgeDataAngles(); calcedgedataanglesnew = 0;}
for (int i = 1; i <= edgedata->Size(); i++)
{
STLTopEdge & sed = edgedata->Elem(i);
if(sed.TrigNum(2) == 0)
sed.SetStatus(ED_CONFIRMED);
if (sed.GetStatus() == ED_CANDIDATE ||
sed.GetStatus() == ED_UNDEFINED)
{
if (sed.CosAngle() <= cos_min_edge_angle)
{
sed.SetStatus (ED_CANDIDATE);
}
else
{
sed.SetStatus(ED_UNDEFINED);
}
}
}
if (stlparam.contyangle < stlparam.yangle)
{
int changed = 1;
int its = 0;
while (changed && stlparam.contyangle < stlparam.yangle)
{
its++;
//(*mycout) << "." << flush;
changed = 0;
for (int i = 1; i <= edgedata->Size(); i++)
{
STLTopEdge & sed = edgedata->Elem(i);
if (sed.CosAngle() <= cos_cont_min_edge_angle
&& sed.GetStatus() == ED_UNDEFINED &&
(edgedata->GetNConfCandEPP(sed.PNum(1)) == 1 ||
edgedata->GetNConfCandEPP(sed.PNum(2)) == 1))
{
changed = 1;
sed.SetStatus (ED_CANDIDATE);
}
}
}
}
int confcand = 0;
if (edgedata->GetNConfEdges() == 0)
{
confcand = 1;
}
for (int i = 1; i <= edgedata->Size(); i++)
{
STLTopEdge & sed = edgedata->Elem(i);
if (sed.GetStatus() == ED_CONFIRMED ||
(sed.GetStatus() == ED_CANDIDATE && confcand))
{
STLEdge se(sed.PNum(1),sed.PNum(2));
se.SetLeftTrig(sed.TrigNum(1));
se.SetRightTrig(sed.TrigNum(2));
AddEdge(se);
}
}
BuildEdgesPerPoint();
//(*mycout) << "its for continued angle = " << its << endl;
PrintMessage(5,"built ", GetNE(), " edges with yellow angle = ", stlparam.yangle, " degree");
}
/*
void STLGeometry :: FindEdgesFromAngles()
{
double yangle = stlparam.yangle;
char * savetask = multithread.task;
multithread.task = "find edges";
const double min_edge_angle = yangle/180.*M_PI;
int np1, np2;
double ang;
int i;
//(*mycout) << "area=" << Area() << endl;
for (i = 1; i <= GetNT(); i++)
{
multithread.percent = (double)i/(double)GetReadNT()*100.;
const STLTriangle & t1 = GetTriangle(i);
//NeighbourTrigs(nt,i);
for (int j = 1; j <= NONeighbourTrigs(i); j++)
{
int nbti = NeighbourTrig(i,j);
if (nbti > i)
{
const STLTriangle & t2 = GetTriangle(nbti);
if (t1.IsNeighbourFrom(t2))
{
ang = GetAngle(i,nbti);
if (ang < -M_PI*0.5) {ang += 2*M_PI;}
t1.GetNeighbourPoints(t2,np1,np2);
if (fabs(ang) >= min_edge_angle)
{
STLEdge se(np1,np2);
se.SetLeftTrig(i);
se.SetRightTrig(nbti);
AddEdge(se);
}
}
}
}
}
(*mycout) << "added " << GetNE() << " edges" << endl;
//BuildEdgesPerPoint();
multithread.percent = 100.;
multithread.task = savetask;
}
*/
void STLGeometry :: BuildEdgesPerPoint()
{
//cout << "*** build edges per point" << endl;
edgesperpoint.SetSize(GetNP());
//add edges to points
for (int i = 1; i <= GetNE(); i++)
{
//(*mycout) << "EDGE " << GetEdge(i).PNum(1) << " - " << GetEdge(i).PNum(2) << endl;
for (int j = 1; j <= 2; j++)
{
AddEdgePP(GetEdge(i).PNum(j),i);
}
}
}
void STLGeometry :: AddFaceEdges()
{
PrintFnStart("Add starting edges for faces");
//für Kugel eine STLLine hinzufügen (Vorteil: verfeinerbar, unabhängig von Auflösung der Geometrie!!!):
//Grenze von 1. gefundener chart
NgArray<int> edgecnt;
NgArray<int> chartindex;
edgecnt.SetSize(GetNOFaces());
chartindex.SetSize(GetNOFaces());
for (int i = 1; i <= GetNOFaces(); i++)
{
edgecnt.Elem(i) = 0;
chartindex.Elem(i) = 0;
}
for (int i = 1; i <= GetNT(); i++)
{
int fn = GetTriangle(i).GetFaceNum();
if (!chartindex.Get(fn)) {chartindex.Elem(fn) = GetChartNr(i);}
for (int j = 1; j <= 3; j++)
{
edgecnt.Elem(fn) += GetNEPP(GetTriangle(i).PNum(j));
}
}
for (int i = 1; i <= GetNOFaces(); i++)
{
if (!edgecnt.Get(i)) {PrintMessage(5,"Face", i, " has no edge!");}
}
int changed = 0;
STLPointId ap1, ap2;
for (int i = 1; i <= GetNOFaces(); i++)
{
if (!edgecnt.Get(i))
{
const STLChart& c = GetChart(chartindex.Get(i));
// bool foundone = false;
int longest_ap1 = -1, longest_ap2 = -1;
double maxlen = -1;
for (int j = 1; j <= c.GetNChartT(); j++)
{
const STLTriangle& t1 = GetTriangle(c.GetChartTrig1(j));
for (int k = 1; k <= 3; k++)
{
int nt = NeighbourTrig(c.GetChartTrig1(j),k);
if (GetChartNr(nt) != chartindex.Get(i))
{
t1.GetNeighbourPoints(GetTriangle(nt),ap1,ap2);
// AddEdge(ap1,ap2);
double len = Dist(GetPoint(ap1), GetPoint(ap2));
if (len > maxlen)
{
maxlen = len;
longest_ap1 = ap1;
longest_ap2 = ap2;
}
changed = 1;
}
}
}
if (maxlen > 0)
AddEdge(longest_ap1,longest_ap2);
}
}
if (changed) BuildEdgesPerPoint();
}
void STLGeometry :: LinkEdges(const STLParameters& stlparam)
{
PushStatusF("Link Edges");
PrintMessage(5,"have now ", GetNE(), " edges with yellow angle = ", stlparam.yangle, " degree");
int i;
lines.SetSize(0);
int starte(0);
int edgecnt = 0;
int found;
int rev(0); //indicates, that edge is inserted reverse
//worked edges
NgArray<int> we(GetNE());
//setlineendpoints; wenn 180°, dann keine endpunkte
//nur punkte mit 2 edges kommen in frage, da bei mehr oder weniger punkten ohnehin ein meshpoint hinkommt
Vec3d v1,v2;
double cos_eca = cos(stlparam.edgecornerangle/180.*M_PI);
int ecnt = 0;
int lp1, lp2;
if (stlparam.edgecornerangle < 180)
{
for (i = 1; i <= GetNP(); i++)
{
if (GetNEPP(i) == 2)
{
if (GetEdge(GetEdgePP(i,1)).PNum(2) == GetEdge(GetEdgePP(i,2)).PNum(1) ||
GetEdge(GetEdgePP(i,1)).PNum(1) == GetEdge(GetEdgePP(i,2)).PNum(2))
{
lp1 = 1; lp2 = 2;
}
else
{
lp1 = 2; lp2 = 1;
}
v1 = Vec3d(GetPoint(GetEdge(GetEdgePP(i,1)).PNum(1)),
GetPoint(GetEdge(GetEdgePP(i,1)).PNum(2)));
v2 = Vec3d(GetPoint(GetEdge(GetEdgePP(i,2)).PNum(lp1)),
GetPoint(GetEdge(GetEdgePP(i,2)).PNum(lp2)));
if ((v1*v2)/sqrt(v1.Length2()*v2.Length2()) < cos_eca)
{
//(*testout) << "add edgepoint " << i << endl;
SetLineEndPoint(i);
ecnt++;
}
}
}
}
PrintMessage(5, "added ", ecnt, " mesh_points due to edge corner angle (",
stlparam.edgecornerangle, " degree)");
for (i = 1; i <= GetNE(); i++) {we.Elem(i) = 0;}
while(edgecnt < GetNE())
{
SetThreadPercent((double)edgecnt/(double)GetNE()*100.);
STLLine* line = new STLLine(this);
//find start edge
int j = 1;
found = 0;
//try second time, if only rings are left!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
int second = 0;
//find a starting edge at point with 1 or more than 2 edges or at lineendpoint
while (!found && j<=GetNE())
{
if (!we.Get(j))
{
if (GetNEPP(GetEdge(j).PNum(1)) != 2 || IsLineEndPoint(GetEdge(j).PNum(1)))
{
starte = j;
found = 1;
rev = 0;
}
else
if (GetNEPP(GetEdge(j).PNum(2)) != 2 || IsLineEndPoint(GetEdge(j).PNum(2)))
{
starte = j;
found = 1;
rev = 1;
}
else if (second)
{
starte = j;
found = 1;
rev = 0; //0 or 1 are possible
}
}
j++;
if (!second && j == GetNE()) {second = 1; j = 1;}
}
if (!found) {PrintSysError("No starting edge found, edgecnt=", edgecnt, ", GETNE=", GetNE());}
line->AddPoint(GetEdge(starte).PNum(1+rev));
line->AddPoint(GetEdge(starte).PNum(2-rev));
if (!rev)
{
line->AddLeftTrig(GetEdge(starte).LeftTrig());
line->AddRightTrig(GetEdge(starte).RightTrig());
}
else
{
line->AddLeftTrig(GetEdge(starte).RightTrig());
line->AddRightTrig(GetEdge(starte).LeftTrig());
}
edgecnt++; we.Elem(starte) = 1;
//add segments to line as long as segments other than starting edge are found or lineendpoint is reached
found = 1;
int other;
while(found)
{
found = 0;
int fp = GetEdge(starte).PNum(2-rev);
if (GetNEPP(fp) == 2 && !IsLineEndPoint(fp))
{
//find the "other" edge of point fp
other = 0;
if (GetEdgePP(fp,1) == starte) {other = 1;}
starte = GetEdgePP(fp,1+other);
//falls ring -> aufhoeren !!!!!!!!!!!
if (!we.Elem(starte))
{
found = 1;
rev = 0;
if (GetEdge(starte).PNum(2) == fp) {rev = 1;}
else if (GetEdge(starte).PNum(1) != fp) {PrintSysError("In Link Edges!");}
line->AddPoint(GetEdge(starte).PNum(2-rev));
if (!rev)
{
line->AddLeftTrig(GetEdge(starte).LeftTrig());
line->AddRightTrig(GetEdge(starte).RightTrig());
}
else
{
line->AddLeftTrig(GetEdge(starte).RightTrig());
line->AddRightTrig(GetEdge(starte).LeftTrig());
}
edgecnt++; we.Elem(starte) = 1;
}
}
}
AddLine(line);
}
PrintMessage(5,"number of lines generated = ", GetNLines());
//check, which lines must have at least one midpoint
INDEX_2_HASHTABLE<int> lineht(GetNLines()+1);
for (i = 1; i <= GetNLines(); i++)
{
if (GetLine(i)->StartP() == GetLine(i)->EndP())
{
GetLine(i)->DoSplit();
}
}
for (i = 1; i <= GetNLines(); i++)
{
INDEX_2 lineep (GetLine(i)->StartP(),GetLine(i)->EndP());
lineep.Sort();
if (lineht.Used (lineep))
{
GetLine(i)->DoSplit();
int other = lineht.Get(lineep);
GetLine(other)->DoSplit();
}
else
{
lineht.Set (lineep, i);
}
}
for (i = 1; i <= GetNLines(); i++)
{
STLLine* line = GetLine(i);
for (int ii = 1; ii <= line->GetNS(); ii++)
{
int ap1, ap2;
line->GetSeg(ii,ap1,ap2);
// (*mycout) << "SEG " << p1 << " - " << p2 << endl;
}
}
PopStatus();
}
int STLGeometry :: GetNOBodys()
{
int markedtrigs1 = 0;
int starttrig = 1;
int i, k, nnt;
int bodycnt = 0;
NgArray<int> bodynum(GetNT());
for (i = 1; i <= GetNT(); i++)
bodynum.Elem(i)=0;
while (markedtrigs1 < GetNT())
{
for (i = starttrig; i <= GetNT(); i++)
{
if (!bodynum.Get(i))
{
starttrig = i;
break;
}
}
//add all triangles around starttriangle, which is reachable without going over an edge
NgArray<int> todolist;
NgArray<int> nextlist;
bodycnt++;
markedtrigs1++;
bodynum.Elem(starttrig) = bodycnt;
todolist.Append(starttrig);
while(todolist.Size())
{
for (i = 1; i <= todolist.Size(); i++)
{
//const STLTriangle& tt = GetTriangle(todolist.Get(i));
for (k = 1; k <= NONeighbourTrigs(todolist.Get(i)); k++)
{
nnt = NeighbourTrig(todolist.Get(i),k);
if (!bodynum.Get(nnt))
{
nextlist.Append(nnt);
bodynum.Elem(nnt) = bodycnt;
markedtrigs1++;
}
}
}
todolist.SetSize(0);
for (i = 1; i <= nextlist.Size(); i++)
{
todolist.Append(nextlist.Get(i));
}
nextlist.SetSize(0);
}
}
PrintMessage(3, "Geometry has ", bodycnt, " separated bodys");
return bodycnt;
}
void STLGeometry :: CalcFaceNums()
{
int markedtrigs1 = 0;
int starttrig(0);
int laststarttrig = 1;
int i, k, nnt;
facecnt = 0;
for (i = 1; i <= GetNT(); i++)
GetTriangle(i).SetFaceNum(0);
while (markedtrigs1 < GetNT())
{
for (i = laststarttrig; i <= GetNT(); i++)
{
if (!GetTriangle(i).GetFaceNum())
{
starttrig = i;
laststarttrig = i;
break;
}
}
//add all triangles around starttriangle, which is reachable without going over an edge
NgArray<int> todolist;
NgArray<int> nextlist;
facecnt++;
markedtrigs1++;
GetTriangle(starttrig).SetFaceNum(facecnt);
todolist.Append(starttrig);
STLPointId ap1, ap2;
while(todolist.Size())
{
for (i = 1; i <= todolist.Size(); i++)
{
const STLTriangle& tt = GetTriangle(todolist.Get(i));
for (k = 1; k <= NONeighbourTrigs(todolist.Get(i)); k++)
{
nnt = NeighbourTrig(todolist.Get(i),k);
STLTriangle& nt = GetTriangle(nnt);
if (!nt.GetFaceNum())
{
tt.GetNeighbourPoints(nt,ap1,ap2);
if (!IsEdge(ap1,ap2))
{
nextlist.Append(nnt);
nt.SetFaceNum(facecnt);
markedtrigs1++;
}
}
}
}
todolist.SetSize(0);
for (i = 1; i <= nextlist.Size(); i++)
{
todolist.Append(nextlist.Get(i));
}
nextlist.SetSize(0);
}
}
GetNOBodys();
PrintMessage(3,"generated ", facecnt, " faces");
}
void STLGeometry :: ClearSpiralPoints()
{
spiralpoints.SetSize(GetNP());
int i;
for (i = 1; i <= spiralpoints.Size(); i++)
{
spiralpoints.Elem(i) = 0;
}
}
void STLGeometry :: BuildSmoothEdges ()
{
if (smoothedges) delete smoothedges;
smoothedges = new INDEX_2_HASHTABLE<int> (GetNE()/10 + 1);
// Jack: Ok ?
// UseExternalEdges();
PushStatusF("Build Smooth Edges");
int nt = GetNT();
Vec3d ng1, ng2;
for (int i = 1; i <= nt; i++)
{
if (multithread.terminate)
{PopStatus();return;}
SetThreadPercent(100.0 * (double)i / (double)nt);
const STLTriangle & trig = GetTriangle (i);
ng1 = trig.GeomNormal(points);
ng1 /= (ng1.Length() + 1e-24);
for (int j = 1; j <= NONeighbourTrigs(i); j++)
{
int nbt = NeighbourTrig (i, j);
ng2 = GetTriangle(nbt).GeomNormal(points);
ng2 /= (ng2.Length() + 1e-24);
STLPointId pi1, pi2;
trig.GetNeighbourPoints(GetTriangle(nbt), pi1, pi2);
if (!IsEdge(pi1,pi2))
{
if (ng1 * ng2 < 0)
{
PrintMessage(7,"smoothedge found");
INDEX_2 i2(pi1, pi2);
i2.Sort();
smoothedges->Set (i2, 1);
}
}
}
}
PopStatus();
}
bool STLGeometry :: IsSmoothEdge (int pi1, int pi2) const
{
if (!smoothedges)
return false;
INDEX_2 i2(pi1, pi2);
i2.Sort();
return smoothedges->Used (i2);
}
/*
//function is not used now
int IsInArray(int n, const NgArray<int>& ia)
{
int i;
for (i = 1; i <= ia.Size(); i++)
{
if (ia.Get(i) == n) {return 1;}
}
return 0;
}
*/
void STLGeometry :: AddConeAndSpiralEdges(const STLParameters& stlparam)
{
PrintMessage(5,"have now ", GetNE(), " edges with yellow angle = ", stlparam.yangle, " degree");
PrintFnStart("AddConeAndSpiralEdges");
// int i,j,k,n;
// int changed = 0;
//check edges, where inner chart and no outer chart come together without an edge
STLPointId np1, np2;
int cnt = 0;
for (ChartId i = 1; i <= GetNOCharts(); i++)
{
STLChart& chart = GetChart(i);
for (int j = 1; j <= chart.GetNChartT(); j++)
{
STLTrigId t = chart.GetChartTrig1(j);
const STLTriangle& tt = GetTriangle(t);
for (int k = 1; k <= NONeighbourTrigs(t); k++)
{
STLTrigId nt = NeighbourTrig(t,k);
if (GetChartNr(nt) != i && !TrigIsInOC(nt,i))
{
tt.GetNeighbourPoints(GetTriangle(nt),np1,np2);
if (!IsEdge(np1,np2))
{
STLEdge se(np1,np2);
se.SetLeftTrig(t);
se.SetRightTrig(nt);
int edgenum = AddEdge(se);
AddEdgePP(np1,edgenum);
AddEdgePP(np2,edgenum);
//changed = 1;
PrintWarning("Found a spiral like structure: chart=", int(i),
", trig=", int(t), ", p1=", int(np1), ", p2=", int(np2));
cnt++;
}
}
}
}
}
PrintMessage(5, "found ", cnt, " spiral like structures");
PrintMessage(5, "added ", cnt, " edges due to spiral like structures");
cnt = 0;
int edgecnt = 0;
Array<STLTrigId> trigsaroundp;
NgArray<int> chartpointchecked(GetNP()); //gets number of chart, if in this chart already checked
chartpointchecked = 0;
int onoc, notonoc, tpp, pn;
STLPointId ap1, ap2;
int tn1, tn2, l, problem;
if (!stldoctor.conecheck) {PrintWarning("++++++++++++ \ncone checking deactivated by user!!!!!\n+++++++++++++++"); return ;}
PushStatus("Find Critical Points");
int addedges = 0;
for (ChartId i = 1; i <= GetNOCharts(); i++)
{
SetThreadPercent((double)i/(double)GetNOCharts()*100.);
if (multithread.terminate)
{PopStatus();return;}
STLChart& chart = GetChart(i);
for (int j = 1; j <= chart.GetNChartT(); j++)
{
STLTrigId t = chart.GetChartTrig1(j);
const STLTriangle& tt = GetTriangle(t);
for (int k = 1; k <= 3; k++)
{
pn = tt.PNum(k);
if (chartpointchecked.Get(pn) == i)
{continue;}
int checkpoint = 0;
for (int n = 1; n <= trigsperpoint.EntrySize(pn); n++)
{
if (trigsperpoint.Get(pn,n) != t &&
GetChartNr(trigsperpoint.Get(pn,n)) != i &&
!TrigIsInOC(trigsperpoint.Get(pn,n),i)) {checkpoint = 1;};
}
if (checkpoint)
{
chartpointchecked.Elem(pn) = i;
int worked = 0;
int spworked = 0;
GetSortedTrianglesAroundPoint(pn,t,trigsaroundp);
trigsaroundp.Append(t);
problem = 0;
for (int l = 2; l <= trigsaroundp.Size()-1; l++)
{
tn1 = trigsaroundp[l-2];
tn2 = trigsaroundp[l-1];
const STLTriangle& t1 = GetTriangle(tn1);
const STLTriangle& t2 = GetTriangle(tn2);
t1.GetNeighbourPoints(t2, ap1, ap2);
if (IsEdge(ap1,ap2)) break;
if (GetChartNr(tn2) != i && !TrigIsInOC(tn2,i)) {problem = 1;}
}
if (problem)
{
for (int l = 2; l <= trigsaroundp.Size()-1; l++)
{
tn1 = trigsaroundp[l-2];
tn2 = trigsaroundp[l-1];
const STLTriangle& t1 = GetTriangle(tn1);
const STLTriangle& t2 = GetTriangle(tn2);
t1.GetNeighbourPoints(t2, ap1, ap2);
if (IsEdge(ap1,ap2)) break;
if ((GetChartNr(tn1) == i && GetChartNr(tn2) != i && TrigIsInOC(tn2,i)) ||
(GetChartNr(tn2) == i && GetChartNr(tn1) != i && TrigIsInOC(tn1,i)))
{
if (addedges || !GetNEPP(pn))
{
STLEdge se(ap1,ap2);
se.SetLeftTrig(tn1);
se.SetRightTrig(tn2);
int edgenum = AddEdge(se);
AddEdgePP(ap1,edgenum);
AddEdgePP(ap2,edgenum);
edgecnt++;
}
if (!addedges && !GetSpiralPoint(pn))
{
SetSpiralPoint(pn);
spworked = 1;
}
worked = 1;
}
}
}
//backwards:
problem = 0;
for (int l = trigsaroundp.Size()-1; l >= 2; l--)
{
tn1 = trigsaroundp[l];
tn2 = trigsaroundp[l-1];
const STLTriangle& t1 = GetTriangle(tn1);
const STLTriangle& t2 = GetTriangle(tn2);
t1.GetNeighbourPoints(t2, ap1, ap2);
if (IsEdge(ap1,ap2)) break;
if (GetChartNr(tn2) != i && !TrigIsInOC(tn2,i)) {problem = 1;}
}
if (problem)
for (int l = trigsaroundp.Size()-1; l >= 2; l--)
{
tn1 = trigsaroundp[l];
tn2 = trigsaroundp[l-1];
const STLTriangle& t1 = GetTriangle(tn1);
const STLTriangle& t2 = GetTriangle(tn2);
t1.GetNeighbourPoints(t2, ap1, ap2);
if (IsEdge(ap1,ap2)) break;
if ((GetChartNr(tn1) == i && GetChartNr(tn2) != i && TrigIsInOC(tn2,i)) ||
(GetChartNr(tn2) == i && GetChartNr(tn1) != i && TrigIsInOC(tn1,i)))
{
if (addedges || !GetNEPP(pn))
{
STLEdge se(ap1,ap2);
se.SetLeftTrig(tn1);
se.SetRightTrig(tn2);
int edgenum = AddEdge(se);
AddEdgePP(ap1,edgenum);
AddEdgePP(ap2,edgenum);
edgecnt++;
}
if (!addedges && !GetSpiralPoint(pn))
{
SetSpiralPoint(pn);
spworked = 1;
//if (GetNEPP(pn) == 0) {(*mycout) << "ERROR: spiralpoint with no edge found!" << endl;}
}
worked = 1;
}
}
if (worked)
{
//(*testout) << "set edgepoint due to spirals: pn=" << i << endl;
SetLineEndPoint(pn);
}
if (spworked)
{
/*
(*mycout) << "Warning: Critical Point " << tt.PNum(k)
<< "( chart " << i << ", trig " << t
<< ") has been neutralized!!!" << endl;
*/
cnt++;
}
// markedpoints.Elem(tt.PNum(k)) = 1;
}
}
}
}
PrintMessage(5, "found ", cnt, " critical points!");
PrintMessage(5, "added ", edgecnt, " edges due to critical points!");
PopStatus();
//search points where inner chart and outer chart and "no chart" trig come together at edge-point
PrintMessage(7,"search for special chart points");
for (ChartId i = 1; i <= GetNOCharts(); i++)
{
STLChart& chart = GetChart(i);
for (int j = 1; j <= chart.GetNChartT(); j++)
{
STLTrigId t = chart.GetChartTrig1(j);
const STLTriangle& tt = GetTriangle(t);
for (int k = 1; k <= 3; k++)
{
pn = tt.PNum(k);
if (GetNEPP(pn) == 2)
{
onoc = 0;
notonoc = 0;
for (int n = 1; n <= trigsperpoint.EntrySize(pn); n++)
{
tpp = trigsperpoint.Get(pn,n);
if (tpp != t && GetChartNr(tpp) != i)
{
if (TrigIsInOC(tpp,i)) {onoc = 1;}
if (!TrigIsInOC(tpp,i)) {notonoc = 1;}
}
}
if (onoc && notonoc && !IsLineEndPoint(pn))
{
GetSortedTrianglesAroundPoint(pn,t,trigsaroundp);
int here = 1; //we start on this side of edge, !here = there
int thereOC = 0;
int thereNotOC = 0;
for (l = 2; l <= trigsaroundp.Size(); l++)
{
GetTriangle(trigsaroundp[l-2]).
GetNeighbourPoints(GetTriangle(trigsaroundp[l-1]), ap1, ap2);
if (IsEdge(ap1,ap2)) {here = (here+1)%2;}
if (!here && TrigIsInOC(trigsaroundp[l-1],i)) {thereOC = 1;}
if (!here && !TrigIsInOC(trigsaroundp[l-1],i)) {thereNotOC = 1;}
}
if (thereOC && thereNotOC)
{
//(*mycout) << "Special OCICnotC - point " << pn << " found!" << endl;
//(*testout) << "set edgepoint due to spirals: pn=" << i << endl;
SetLineEndPoint(pn);
}
}
}
}
}
}
PrintMessage(5,"have now ", GetNE(), " edges with yellow angle = ", stlparam.yangle, " degree");
}
//get trigs at a point, started with starttrig, then every left
void STLGeometry :: GetSortedTrianglesAroundPoint(STLPointId p, STLTrigId starttrig, Array<STLTrigId>& trigs)
{
STLTrigId acttrig = starttrig;
trigs.SetAllocSize(trigsperpoint.EntrySize(p));
trigs.SetSize(0);
trigs.Append(acttrig);
int locindex1(0), locindex2(0);
//(*mycout) << "trigs around point " << p << endl;
int end = 0;
while (!end)
{
const STLTriangle& at = GetTriangle(acttrig);
for (int i = 1; i <= trigsperpoint.EntrySize(p); i++)
{
STLTrigId t = trigsperpoint.Get(p,i);
const STLTriangle& nt = GetTriangle(t);
if (at.IsNeighbourFrom(nt))
{
STLPointId ap1, ap2;
at.GetNeighbourPoints(nt, ap1, ap2);
if (ap2 == p) {Swap(ap1,ap2);}
if (ap1 != p) {PrintSysError("In GetSortedTrianglesAroundPoint!!!");}
for (int j = 1; j <= 3; j++)
{
if (at.PNum(j) == ap1) {locindex1 = j;};
if (at.PNum(j) == ap2) {locindex2 = j;};
}
if ((locindex2+1)%3+1 == locindex1)
{
if (t != starttrig)
{
trigs.Append(t);
// (*mycout) << "trig " << t << endl;
acttrig = t;
}
else
{
end = 1;
}
break;
}
}
}
}
}
/*
int STLGeometry :: NeighbourTrig(int trig, int nr) const
{
return neighbourtrigs.Get(trig,nr);
}
*/
void STLGeometry :: SmoothGeometry ()
{
int i, j, k;
double maxerr0, maxerr;
for (i = 1; i <= GetNP(); i++)
{
if (GetNEPP(i)) continue;
maxerr0 = 0;
for (j = 1; j <= NOTrigsPerPoint(i); j++)
{
int tnum = TrigPerPoint(i, j);
double err = Angle (GetTriangle(tnum).Normal (),
GetTriangle(tnum).GeomNormal(GetPoints()));
if (err > maxerr0)
maxerr0 = err;
}
Point3d pi = GetPoint (i);
if (maxerr0 < 1.1) continue; // about 60 degree
maxerr0 /= 2; // should be at least halfen
for (k = 1; k <= NOTrigsPerPoint(i); k++)
{
const STLTriangle & trig = GetTriangle (TrigPerPoint (i, k));
Point3d c = Center(GetPoint (trig.PNum(1)),
GetPoint (trig.PNum(2)),
GetPoint (trig.PNum(3)));
Point3d np = pi + 0.1 * (c - pi);
SetPoint (i, np);
maxerr = 0;
for (j = 1; j <= NOTrigsPerPoint(i); j++)
{
int tnum = TrigPerPoint(i, j);
double err = Angle (GetTriangle(tnum).Normal (),
GetTriangle(tnum).GeomNormal(GetPoints()));
if (err > maxerr)
maxerr = err;
}
if (maxerr < maxerr0)
{
pi = np;
}
}
SetPoint (i, pi);
}
}
void STLGeometry :: WriteChartToFile( ChartId chartnumber, filesystem::path filename )
{
PrintMessage(1,"write chart ", int(chartnumber), " to ", filename);
Array<int> trignums;
if (chartnumber >= 1 && chartnumber <= GetNOCharts())
{
const STLChart& chart = GetChart(chartnumber);
for (int j = 1; j <= chart.GetNChartT(); j++)
trignums.Append(chart.GetChartTrig1(j));
for (int j = 1; j <= chart.GetNOuterT(); j++)
trignums.Append(chart.GetOuterTrig1(j));
QuickSort(trignums);
STLGeometry geo;
NgArray<STLReadTriangle> readtrigs;
const auto & first_trig = GetTriangle(chart.GetChartTrig1(1));
auto normal = first_trig.Normal();
Box<3> box{Box<3>::EMPTY_BOX};
for(auto j : trignums)
{
const auto& trig = GetTriangle(j);
Point<3> pts[3];
for(auto k : Range(3))
{
pts[k] = GetPoint(trig[k]);
box.Add(pts[k]);
}
Vec3d normal = Cross( pts[1]-pts[0], pts[2]-pts[0] );
readtrigs.Append(STLReadTriangle(pts, trig.Normal()));
}
auto dist = box.PMax() - box.PMin();
auto extra_point = GetPoint(first_trig[0]) - dist.Length()*normal;
NgArray<int> acttrigs(GetNT());
acttrigs = -1;
for (int j = 1; j <= chart.GetNT(); j++)
acttrigs.Elem(chart.GetTrig1(j)) = chartnumber;
for (int j = 1; j <= chart.GetNT(); j++)
{
auto t = chart.GetTrig1(j);
const auto & tt = GetTriangle(t);
for (int k = 1; k <= 3; k++)
{
int nt = NeighbourTrig(t,k);
if (acttrigs.Get(nt) != chartnumber)
{
STLPointId np1, np2;
tt.GetNeighbourPoints(GetTriangle(nt),np1,np2);
Point<3> pts[3];
pts[0] = GetPoint(np2);
pts[1] = GetPoint(np1);
pts[2] = extra_point;
Vec3d normal = -Cross( pts[2]-pts[0], pts[1]-pts[0] );
readtrigs.Append(STLReadTriangle(pts, normal));
}
}
}
geo.InitSTLGeometry(readtrigs);
geo.Save(filename);
}
}
class STLGeometryRegister : public GeometryRegister
{
public:
virtual NetgenGeometry * Load (const filesystem::path & filename) const;
};
NetgenGeometry * STLGeometryRegister :: Load (const filesystem::path & filename) const
{
string ext = ToLower(filename.extension());
if (ext == ".stl")
{
PrintMessage (1, "Load STL geometry file ", filename);
ifstream infile(filename);
STLGeometry * hgeom = STLGeometry :: Load (infile);
hgeom -> edgesfound = 0;
return hgeom;
}
else if (ext == ".stlb")
{
PrintMessage (1, "Load STL binary geometry file ", filename);
ifstream infile(filename);
STLGeometry * hgeom = STLGeometry :: LoadBinary (infile);
hgeom -> edgesfound = 0;
return hgeom;
}
else if (ext == ".nao")
{
PrintMessage (1, "Load naomi (F. Kickinger) geometry file ", filename);
ifstream infile(filename);
STLGeometry * hgeom = STLGeometry :: LoadNaomi (infile);
hgeom -> edgesfound = 0;
return hgeom;
}
return NULL;
}
class STLInit
{
public:
STLInit()
{
geometryregister.Append (new STLGeometryRegister);
}
};
STLInit stlinit;
static RegisterClassForArchive<STLGeometry, NetgenGeometry, STLTopology> stlgeo;
}
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