netgen/libsrc/stlgeom/stlline.cpp

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2009-01-13 04:40:13 +05:00
#include <mystdlib.h>
#include <myadt.hpp>
#include <linalg.hpp>
#include <gprim.hpp>
#include <meshing.hpp>
#include "stlgeom.hpp"
namespace netgen
{
//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
//++++++++++++++ EDGE DATA ++++++++++++++++++++++++++++++++++++++++++
//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
/*
void STLEdgeData :: Write(ofstream& of) const
{
of // << angle << " "
<< p1 << " "
<< p2 << " "
<< lt << " "
<< rt << " "
// << status
<< endl;
}
void STLEdgeData :: Read(ifstream& ifs)
{
// ifs >> angle;
ifs >> p1;
ifs >> p2;
ifs >> lt;
ifs >> rt;
// ifs >> status;
}
int STLEdgeData :: GetStatus () const
{
if (topedgenr <= 0 || topedgenr > top->GetNTE()) return 0;
return top->GetTopEdge (topedgenr).GetStatus();
}
void STLEdgeData ::SetStatus (int stat)
{
if (topedgenr >= 1 && topedgenr <= top->GetNTE())
top->GetTopEdge (topedgenr).SetStatus(stat);
}
float STLEdgeData :: CosAngle() const
{
return top->GetTopEdge (topedgenr).CosAngle();
}
void STLEdgeDataList :: ResetAll()
{
int i;
for (i = 1; i <= edgedata.Size(); i++)
{
edgedata.Elem(i).SetUndefined();
}
}
void STLEdgeDataList :: ResetCandidates()
{
int i;
for (i = 1; i <= edgedata.Size(); i++)
{
if (edgedata.Get(i).Candidate())
{edgedata.Elem(i).SetUndefined();}
}
}
int STLEdgeDataList :: GetNConfEdges() const
{
int i;
int cnt = 0;
for (i = 1; i <= edgedata.Size(); i++)
{
if (edgedata.Get(i).Confirmed()) {cnt++;}
}
return cnt;
}
void STLEdgeDataList :: ConfirmCandidates()
{
int i;
for (i = 1; i <= edgedata.Size(); i++)
{
if (edgedata.Get(i).Candidate())
{edgedata.Elem(i).SetConfirmed();}
}
}
int STLEdgeDataList :: GetEdgeNum(int np1, int np2) const
{
INDEX_2 ed(np1,np2);
ed.Sort();
if (hashtab.Used(ed))
{
return hashtab.Get(ed);
}
// int i;
// for (i = 1; i <= Size(); i++)
// {
// if ((Get(i).p1 == np1 && Get(i).p2 == np2) ||
// (Get(i).p2 == np1 && Get(i).p1 == np2))
// {
// return i;
// }
// }
return 0;
}
const STLEdgeDataList& STLEdgeDataList :: operator=(const STLEdgeDataList& edl)
{
int i;
SetSize(edl.Size());
for (i = 1; i <= Size(); i++)
{
Add(edl.Get(i), i);
}
return *this;
}
void STLEdgeDataList :: Add(const STLEdgeData& ed, int i)
{
INDEX_2 edge(ed.p1,ed.p2);
edge.Sort();
hashtab.Set(edge, i);
Elem(i) = ed;
AddEdgePP(ed.p1,i);
AddEdgePP(ed.p2,i);
}
void STLEdgeDataList :: Write(ofstream& of) const
{
of.precision(16);
int i;
of << Size() << endl;
for (i = 1; i <= Size(); i++)
{
Get(i).Write(of);
}
}
void STLEdgeDataList :: Read(ifstream& ifs)
{
int i,n;
ifs >> n;
SetSize(n);
STLEdgeData ed;
for (i = 1; i <= n; i++)
{
ed.Read(ifs);
Add(ed,i);
}
}
int STLEdgeDataList :: GetNEPPStat(int p, int status) const
{
int i;
int cnt = 0;
for (i = 1; i <= GetNEPP(p); i++)
{
if (Get(GetEdgePP(p,i)).GetStatus() == status)
{
cnt++;
}
}
return cnt;
}
int STLEdgeDataList :: GetNConfCandEPP(int p) const
{
int i;
int cnt = 0;
for (i = 1; i <= GetNEPP(p); i++)
{
if (Get(GetEdgePP(p,i)).ConfCand())
{
cnt++;
}
}
return cnt;
}
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void STLEdgeDataList :: BuildLineWithEdge(int ep1, int ep2, NgArray<twoint>& line)
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{
int status = Get(GetEdgeNum(ep1,ep2)).GetStatus();
int found, pstart, p, en, pnew, ennew;
int closed = 0;
int j, i;
for (j = 1; j <= 2; j++)
{
if (j == 1) {p = ep1;}
if (j == 2) {p = ep2;}
pstart = p;
en = GetEdgeNum(ep1,ep2);
found = 1;
while (found && !closed)
{
found = 0;
if (GetNEPPStat(p,status) == 2)
{
for (i = 1; i <= GetNEPP(p); i++)
{
const STLEdgeData& e = Get(GetEdgePP(p,i));
if (GetEdgePP(p,i) != en && e.GetStatus() == status)
{
if (e.p1 == p)
{pnew = e.p2;}
else
{pnew = e.p1;}
ennew = GetEdgePP(p,i);
}
}
if (pnew == pstart) {closed = 1;}
else
{
line.Append(twoint(p,pnew));
p = pnew;
en = ennew;
found = 1;
}
}
}
}
}
*/
STLEdgeDataList :: STLEdgeDataList (STLTopology & ageom)
: geom(ageom)
{
;
}
STLEdgeDataList :: ~STLEdgeDataList()
{
;
}
void STLEdgeDataList :: Store ()
{
int i, ne = geom.GetNTE();
storedstatus.SetSize(ne);
for (i = 1; i <= ne; i++)
{
storedstatus.Elem(i) = Get(i).GetStatus();
}
}
void STLEdgeDataList :: Restore ()
{
int i, ne = geom.GetNTE();
if (storedstatus.Size() == ne)
for (i = 1; i <= ne; i++)
geom.GetTopEdge(i).SetStatus (storedstatus.Elem(i));
}
void STLEdgeDataList :: ResetAll()
{
int i, ne = geom.GetNTE();
for (i = 1; i <= ne; i++)
geom.GetTopEdge (i).SetStatus (ED_UNDEFINED);
}
int STLEdgeDataList :: GetNConfEdges() const
{
int i, ne = geom.GetNTE();
int cnt = 0;
for (i = 1; i <= ne; i++)
if (geom.GetTopEdge (i).GetStatus() == ED_CONFIRMED)
cnt++;
return cnt;
}
void STLEdgeDataList :: ChangeStatus(int status1, int status2)
{
int i, ne = geom.GetNTE();
for (i = 1; i <= ne; i++)
if (geom.GetTopEdge (i).GetStatus() == status1)
geom.GetTopEdge (i).SetStatus (status2);
}
/*
void STLEdgeDataList :: Add(const STLEdgeData& ed, int i)
{
INDEX_2 edge(ed.p1,ed.p2);
edge.Sort();
hashtab.Set(edge, i);
Elem(i) = ed;
AddEdgePP(ed.p1,i);
AddEdgePP(ed.p2,i);
}
*/
void STLEdgeDataList :: Write(ofstream& of) const
{
/*
of.precision(16);
int i;
of << Size() << endl;
for (i = 1; i <= Size(); i++)
{
Get(i).Write(of);
}
*/
of.precision(16);
int i, ne = geom.GetNTE();
//of << GetNConfEdges() << endl;
of << geom.GetNTE() << endl;
for (i = 1; i <= ne; i++)
{
const STLTopEdge & edge = geom.GetTopEdge(i);
//if (edge.GetStatus() == ED_CONFIRMED)
of << edge.GetStatus() << " ";
const Point3d & p1 = geom.GetPoint (edge.PNum(1));
const Point3d & p2 = geom.GetPoint (edge.PNum(2));
of << p1.X() << " "
<< p1.Y() << " "
<< p1.Z() << " "
<< p2.X() << " "
<< p2.Y() << " "
<< p2.Z() << endl;
}
}
void STLEdgeDataList :: Read(ifstream& ifs)
{
int i, nce;
Point3d p1, p2;
int pi1, pi2;
int status, ednum;
ifs >> nce;
for (i = 1; i <= nce; i++)
{
ifs >> status;
ifs >> p1.X() >> p1.Y() >> p1.Z();
ifs >> p2.X() >> p2.Y() >> p2.Z();
pi1 = geom.GetPointNum (p1);
pi2 = geom.GetPointNum (p2);
ednum = geom.GetTopEdgeNum (pi1, pi2);
if (ednum)
{
geom.GetTopEdge(ednum).SetStatus (status);
// geom.GetTopEdge (ednum).SetStatus (ED_CONFIRMED);
}
}
/*
int i,n;
ifs >> n;
SetSize(n);
STLEdgeData ed;
for (i = 1; i <= n; i++)
{
ed.Read(ifs);
Add(ed,i);
}
*/
}
int STLEdgeDataList :: GetNEPPStat(int p, int status) const
{
int i;
int cnt = 0;
for (i = 1; i <= GetNEPP(p); i++)
{
if (Get(GetEdgePP(p,i)).GetStatus() == status)
{
cnt++;
}
}
return cnt;
}
int STLEdgeDataList :: GetNConfCandEPP(int p) const
{
int i;
int cnt = 0;
for (i = 1; i <= GetNEPP(p); i++)
{
if (Get(GetEdgePP(p,i)).GetStatus() == ED_CANDIDATE ||
Get(GetEdgePP(p,i)).GetStatus() == ED_CONFIRMED)
{
cnt++;
}
}
return cnt;
}
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void STLEdgeDataList :: BuildLineWithEdge(int ep1, int ep2, NgArray<twoint>& line)
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{
int status = Get(GetEdgeNum(ep1,ep2)).GetStatus();
int found, pstart, p(0), en, pnew(0), ennew(0);
int closed = 0;
int j, i;
for (j = 1; j <= 2; j++)
{
if (j == 1) {p = ep1;}
if (j == 2) {p = ep2;}
pstart = p;
en = GetEdgeNum(ep1,ep2);
found = 1;
while (found && !closed)
{
found = 0;
if (GetNEPPStat(p,status) == 2)
{
for (i = 1; i <= GetNEPP(p); i++)
{
const STLTopEdge & e = Get(GetEdgePP(p,i));
if (GetEdgePP(p,i) != en && e.GetStatus() == status)
{
if (e.PNum(1) == p)
{pnew = e.PNum(2);}
else
{pnew = e.PNum(1);}
ennew = GetEdgePP(p,i);
}
}
if (pnew == pstart) {closed = 1;}
else
{
line.Append(twoint(p,pnew));
p = pnew;
en = ennew;
found = 1;
}
}
}
}
}
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int Exists(int p1, int p2, const NgArray<twoint>& line)
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{
int i;
for (i = 1; i <= line.Size(); i++)
{
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if ( (line.Get(i).i1 == p1 && line.Get(i).i2 == p2) ||
(line.Get(i).i1 == p2 && line.Get(i).i2 == p1) )
{return 1;}
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}
return 0;
}
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void STLEdgeDataList :: BuildClusterWithEdge(int ep1, int ep2, NgArray<twoint>& line)
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{
int status = Get(GetEdgeNum(ep1,ep2)).GetStatus();
int p(0), en;
int j, i, k;
int oldend;
int newend = 1;
int pnew, ennew(0);
int changed = 1;
while (changed)
{
changed = 0;
for (j = 1; j <= 2; j++)
{
oldend = newend;
newend = line.Size();
for (k = oldend; k <= line.Size(); k++)
{
if (j == 1) p = line.Get(k).i1;
if (j == 2) p = line.Get(k).i2;
en = GetEdgeNum(line.Get(k).i1, line.Get(k).i2);
for (i = 1; i <= GetNEPP(p); i++)
{
pnew = 0;
const STLTopEdge & e = Get(GetEdgePP(p,i));
if (GetEdgePP(p,i) != en && e.GetStatus() == status)
{
if (e.PNum(1) == p)
{pnew = e.PNum(2);}
else
{pnew = e.PNum(1);}
ennew = GetEdgePP(p,i);
}
if (pnew && !Exists(p,pnew,line))
{
changed = 1;
line.Append(twoint(p,pnew));
p = pnew;
en = ennew;
}
}
}
}
}
}
//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
//+++++++++++++++++++ STL LINE +++++++++++++++++++++++++++++++
//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
STLLine :: STLLine(const STLGeometry * ageometry)
: pts(), lefttrigs(), righttrigs()
{
geometry = ageometry;
split = 0;
};
int STLLine :: GetNS() const
{
if (pts.Size() <= 1) {return 0;}
return pts.Size()-1;
}
void STLLine :: GetSeg(int nr, int& p1, int& p2) const
{
p1 = pts.Get(nr);
p2 = pts.Get(nr+1);
}
int STLLine :: GetLeftTrig(int nr) const
{
if (nr > lefttrigs.Size()) {PrintSysError("In STLLine::GetLeftTrig!!!"); return 0;}
return lefttrigs.Get(nr);
};
int STLLine :: GetRightTrig(int nr) const
{
if (nr > righttrigs.Size()) {PrintSysError("In STLLine::GetRightTrig!!!"); return 0;}
return righttrigs.Get(nr);
};
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double STLLine :: GetSegLen(const NgArray<Point<3> >& ap, int nr) const
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{
return Dist(ap.Get(PNum(nr)),ap.Get(PNum(nr+1)));
}
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double STLLine :: GetLength(const NgArray<Point<3> >& ap) const
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{
double len = 0;
for (int i = 2; i <= pts.Size(); i++)
{
len += (ap.Get(pts.Get(i)) - ap.Get(pts.Get(i-1))).Length();
}
return len;
}
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void STLLine :: GetBoundingBox (const NgArray<Point<3> > & ap, Box<3> & box) const
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{
box.Set (ap.Get (pts[0]));
for (int i = 1; i < pts.Size(); i++)
box.Add (ap.Get(pts[i]));
}
Point<3> STLLine ::
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GetPointInDist(const NgArray<Point<3> >& ap, double dist, int& index) const
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{
if (dist <= 0)
{
index = 1;
return ap.Get(StartP());
}
double len = 0;
int i;
for (i = 1; i < pts.Size(); i++)
{
double seglen = Dist (ap.Get(pts.Get(i)),
ap.Get(pts.Get(i+1)));
if (len + seglen > dist)
{
index = i;
double relval = (dist - len) / (seglen + 1e-16);
Vec3d v (ap.Get(pts.Get(i)), ap.Get(pts.Get(i+1)));
return ap.Get(pts.Get(i)) + relval * v;
}
len += seglen;
}
index = pts.Size() - 1;
return ap.Get(EndP());
}
/*
double stlgh;
double GetH(const Point3d& p, double x)
{
return stlgh;//+0.5)*(x+0.5);
}
*/
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STLLine* STLLine :: Mesh(const NgArray<Point<3> >& ap,
NgArray<Point3d>& mp, double ghi,
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class Mesh& mesh) const
{
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static int timer1a = NgProfiler::CreateTimer ("mesh stl-line 1a");
static int timer1b = NgProfiler::CreateTimer ("mesh stl-line 1b");
static int timer2 = NgProfiler::CreateTimer ("mesh stl-line 2");
static int timer3 = NgProfiler::CreateTimer ("mesh stl-line 3");
NgProfiler::StartTimer (timer1a);
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STLLine* line = new STLLine(geometry);
//stlgh = ghi; //uebergangsloesung!!!!
double len = GetLength(ap);
double inthl = 0; //integral of 1/h
double dist = 0;
double h;
int ind;
Point3d p;
Box<3> bbox;
GetBoundingBox (ap, bbox);
double diam = bbox.Diam();
double minh = mesh.LocalHFunction().GetMinH (bbox.PMin(), bbox.PMax());
double maxseglen = 0;
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for (int i = 1; i <= GetNS(); i++)
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maxseglen = max2 (maxseglen, GetSegLen (ap, i));
int nph = 10+int(maxseglen / minh); //anzahl der integralauswertungen pro segment
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NgArray<double> inthi(GetNS()*nph);
NgArray<double> curvelen(GetNS()*nph);
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NgProfiler::StopTimer (timer1a);
NgProfiler::StartTimer (timer1b);
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for (int i = 1; i <= GetNS(); i++)
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{
//double seglen = GetSegLen(ap,i);
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for (int j = 1; j <= nph; j++)
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{
p = GetPointInDist(ap,dist,ind);
//h = GetH(p,dist/len);
h = mesh.GetH(p);
dist += GetSegLen(ap,i)/(double)nph;
inthl += GetSegLen(ap,i)/nph/(h);
inthi.Elem((i-1)*nph+j) = GetSegLen(ap,i)/nph/h;
curvelen.Elem((i-1)*nph+j) = GetSegLen(ap,i)/nph;
}
}
int inthlint = int(inthl+1);
if ( (inthlint < 3) && (StartP() == EndP()))
{
inthlint = 3;
}
if ( (inthlint == 1) && ShouldSplit())
{
inthlint = 2;
}
double fact = inthl/(double)inthlint;
dist = 0;
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int j = 1;
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p = ap.Get(StartP());
int pn = AddPointIfNotExists(mp, p, 1e-10*diam);
int segn = 1;
line->AddPoint(pn);
line->AddLeftTrig(GetLeftTrig(segn));
line->AddRightTrig(GetRightTrig(segn));
line->AddDist(dist);
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NgProfiler::StopTimer (timer1b);
NgProfiler::StartTimer (timer2);
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inthl = 0; //restart each meshseg
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for (int i = 1; i <= inthlint; i++)
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{
while (inthl < 1.000000001 && j <= inthi.Size())
{
inthl += inthi.Get(j)/fact;
dist += curvelen.Get(j);
j++;
}
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//went too far:
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j--;
double tofar = (inthl - 1)/inthi.Get(j);
inthl -= tofar*inthi.Get(j);
dist -= tofar*curvelen.Get(j)*fact;
if (i == inthlint && fabs(dist - len) >= 1E-8)
{
PrintSysError("meshline failed!!!");
}
if (i != inthlint)
{
p = GetPointInDist(ap,dist,ind);
pn = AddPointIfNotExists(mp, p, 1e-10*diam);
segn = ind;
line->AddPoint(pn);
line->AddLeftTrig(GetLeftTrig(segn));
line->AddRightTrig(GetRightTrig(segn));
line->AddDist(dist);
}
inthl = tofar*inthi.Get(j);
dist += tofar*curvelen.Get(j)*fact;
j++;
}
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NgProfiler::StopTimer (timer2);
NgProfiler::StartTimer (timer3);
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p = ap.Get(EndP());
pn = AddPointIfNotExists(mp, p, 1e-10*diam);
segn = GetNS();
line->AddPoint(pn);
line->AddLeftTrig(GetLeftTrig(segn));
line->AddRightTrig(GetRightTrig(segn));
line->AddDist(dist);
for (int ii = 1; ii <= line->GetNS(); ii++)
{
int p1, p2;
line->GetSeg(ii,p1,p2);
}
/*
(*testout) << "line, " << ap.Get(StartP()) << "-" << ap.Get(EndP())
<< " len = " << Dist (ap.Get(StartP()), ap.Get(EndP())) << endl;
*/
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NgProfiler::StopTimer (timer3);
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return line;
}
}