mirror of
https://github.com/NGSolve/netgen.git
synced 2024-09-22 17:52:50 +05:00
798 lines
15 KiB
C++
798 lines
15 KiB
C++
#include <mystdlib.h>
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#include <myadt.hpp>
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#include <linalg.hpp>
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#include <gprim.hpp>
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#include <meshing.hpp>
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#include "stlgeom.hpp"
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namespace netgen
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{
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//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
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//++++++++++++++ EDGE DATA ++++++++++++++++++++++++++++++++++++++++++
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//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
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/*
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void STLEdgeData :: Write(ofstream& of) const
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{
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of // << angle << " "
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<< p1 << " "
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<< p2 << " "
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<< lt << " "
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<< rt << " "
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// << status
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<< endl;
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}
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void STLEdgeData :: Read(ifstream& ifs)
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{
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// ifs >> angle;
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ifs >> p1;
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ifs >> p2;
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ifs >> lt;
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ifs >> rt;
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// ifs >> status;
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}
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int STLEdgeData :: GetStatus () const
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{
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if (topedgenr <= 0 || topedgenr > top->GetNTE()) return 0;
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return top->GetTopEdge (topedgenr).GetStatus();
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}
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void STLEdgeData ::SetStatus (int stat)
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{
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if (topedgenr >= 1 && topedgenr <= top->GetNTE())
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top->GetTopEdge (topedgenr).SetStatus(stat);
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}
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float STLEdgeData :: CosAngle() const
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{
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return top->GetTopEdge (topedgenr).CosAngle();
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}
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void STLEdgeDataList :: ResetAll()
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{
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int i;
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for (i = 1; i <= edgedata.Size(); i++)
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{
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edgedata.Elem(i).SetUndefined();
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}
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}
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void STLEdgeDataList :: ResetCandidates()
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{
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int i;
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for (i = 1; i <= edgedata.Size(); i++)
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{
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if (edgedata.Get(i).Candidate())
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{edgedata.Elem(i).SetUndefined();}
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}
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}
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int STLEdgeDataList :: GetNConfEdges() const
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{
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int i;
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int cnt = 0;
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for (i = 1; i <= edgedata.Size(); i++)
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{
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if (edgedata.Get(i).Confirmed()) {cnt++;}
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}
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return cnt;
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}
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void STLEdgeDataList :: ConfirmCandidates()
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{
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int i;
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for (i = 1; i <= edgedata.Size(); i++)
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{
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if (edgedata.Get(i).Candidate())
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{edgedata.Elem(i).SetConfirmed();}
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}
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}
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int STLEdgeDataList :: GetEdgeNum(int np1, int np2) const
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{
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INDEX_2 ed(np1,np2);
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ed.Sort();
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if (hashtab.Used(ed))
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{
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return hashtab.Get(ed);
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}
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// int i;
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// for (i = 1; i <= Size(); i++)
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// {
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// if ((Get(i).p1 == np1 && Get(i).p2 == np2) ||
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// (Get(i).p2 == np1 && Get(i).p1 == np2))
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// {
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// return i;
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// }
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// }
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return 0;
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}
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const STLEdgeDataList& STLEdgeDataList :: operator=(const STLEdgeDataList& edl)
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{
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int i;
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SetSize(edl.Size());
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for (i = 1; i <= Size(); i++)
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{
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Add(edl.Get(i), i);
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}
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return *this;
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}
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void STLEdgeDataList :: Add(const STLEdgeData& ed, int i)
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{
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INDEX_2 edge(ed.p1,ed.p2);
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edge.Sort();
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hashtab.Set(edge, i);
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Elem(i) = ed;
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AddEdgePP(ed.p1,i);
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AddEdgePP(ed.p2,i);
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}
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void STLEdgeDataList :: Write(ofstream& of) const
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{
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of.precision(16);
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int i;
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of << Size() << endl;
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for (i = 1; i <= Size(); i++)
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{
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Get(i).Write(of);
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}
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}
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void STLEdgeDataList :: Read(ifstream& ifs)
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{
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int i,n;
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ifs >> n;
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SetSize(n);
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STLEdgeData ed;
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for (i = 1; i <= n; i++)
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{
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ed.Read(ifs);
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Add(ed,i);
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}
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}
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int STLEdgeDataList :: GetNEPPStat(int p, int status) const
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{
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int i;
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int cnt = 0;
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for (i = 1; i <= GetNEPP(p); i++)
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{
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if (Get(GetEdgePP(p,i)).GetStatus() == status)
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{
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cnt++;
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}
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}
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return cnt;
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}
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int STLEdgeDataList :: GetNConfCandEPP(int p) const
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{
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int i;
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int cnt = 0;
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for (i = 1; i <= GetNEPP(p); i++)
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{
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if (Get(GetEdgePP(p,i)).ConfCand())
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{
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cnt++;
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}
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}
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return cnt;
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}
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void STLEdgeDataList :: BuildLineWithEdge(int ep1, int ep2, NgArray<twoint>& line)
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{
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int status = Get(GetEdgeNum(ep1,ep2)).GetStatus();
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int found, pstart, p, en, pnew, ennew;
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int closed = 0;
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int j, i;
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for (j = 1; j <= 2; j++)
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{
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if (j == 1) {p = ep1;}
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if (j == 2) {p = ep2;}
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pstart = p;
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en = GetEdgeNum(ep1,ep2);
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found = 1;
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while (found && !closed)
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{
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found = 0;
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if (GetNEPPStat(p,status) == 2)
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{
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for (i = 1; i <= GetNEPP(p); i++)
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{
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const STLEdgeData& e = Get(GetEdgePP(p,i));
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if (GetEdgePP(p,i) != en && e.GetStatus() == status)
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{
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if (e.p1 == p)
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{pnew = e.p2;}
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else
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{pnew = e.p1;}
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ennew = GetEdgePP(p,i);
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}
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}
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if (pnew == pstart) {closed = 1;}
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else
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{
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line.Append(twoint(p,pnew));
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p = pnew;
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en = ennew;
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found = 1;
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}
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}
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}
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}
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}
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*/
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STLEdgeDataList :: STLEdgeDataList (STLTopology & ageom)
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: geom(ageom)
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{
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;
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}
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STLEdgeDataList :: ~STLEdgeDataList()
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{
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;
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}
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void STLEdgeDataList :: Store ()
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{
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int i, ne = geom.GetNTE();
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storedstatus.SetSize(ne);
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for (i = 1; i <= ne; i++)
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{
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storedstatus.Elem(i) = Get(i).GetStatus();
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}
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}
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void STLEdgeDataList :: Restore ()
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{
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int i, ne = geom.GetNTE();
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if (storedstatus.Size() == ne)
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for (i = 1; i <= ne; i++)
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geom.GetTopEdge(i).SetStatus (storedstatus.Elem(i));
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}
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void STLEdgeDataList :: ResetAll()
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{
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int i, ne = geom.GetNTE();
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for (i = 1; i <= ne; i++)
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geom.GetTopEdge (i).SetStatus (ED_UNDEFINED);
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}
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int STLEdgeDataList :: GetNConfEdges() const
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{
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int i, ne = geom.GetNTE();
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int cnt = 0;
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for (i = 1; i <= ne; i++)
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if (geom.GetTopEdge (i).GetStatus() == ED_CONFIRMED)
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cnt++;
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return cnt;
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}
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void STLEdgeDataList :: ChangeStatus(int status1, int status2)
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{
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int i, ne = geom.GetNTE();
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for (i = 1; i <= ne; i++)
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if (geom.GetTopEdge (i).GetStatus() == status1)
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geom.GetTopEdge (i).SetStatus (status2);
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}
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/*
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void STLEdgeDataList :: Add(const STLEdgeData& ed, int i)
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{
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INDEX_2 edge(ed.p1,ed.p2);
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edge.Sort();
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hashtab.Set(edge, i);
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Elem(i) = ed;
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AddEdgePP(ed.p1,i);
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AddEdgePP(ed.p2,i);
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}
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*/
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void STLEdgeDataList :: Write(ofstream& of) const
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{
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/*
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of.precision(16);
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int i;
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of << Size() << endl;
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for (i = 1; i <= Size(); i++)
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{
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Get(i).Write(of);
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}
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*/
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of.precision(16);
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int i, ne = geom.GetNTE();
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//of << GetNConfEdges() << endl;
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of << geom.GetNTE() << endl;
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for (i = 1; i <= ne; i++)
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{
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const STLTopEdge & edge = geom.GetTopEdge(i);
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//if (edge.GetStatus() == ED_CONFIRMED)
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of << edge.GetStatus() << " ";
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const Point3d & p1 = geom.GetPoint (edge.PNum(1));
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const Point3d & p2 = geom.GetPoint (edge.PNum(2));
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of << p1.X() << " "
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<< p1.Y() << " "
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<< p1.Z() << " "
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<< p2.X() << " "
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<< p2.Y() << " "
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<< p2.Z() << endl;
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}
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}
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void STLEdgeDataList :: Read(ifstream& ifs)
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{
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int i, nce;
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Point3d p1, p2;
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int pi1, pi2;
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int status, ednum;
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ifs >> nce;
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for (i = 1; i <= nce; i++)
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{
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ifs >> status;
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ifs >> p1.X() >> p1.Y() >> p1.Z();
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ifs >> p2.X() >> p2.Y() >> p2.Z();
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pi1 = geom.GetPointNum (p1);
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pi2 = geom.GetPointNum (p2);
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ednum = geom.GetTopEdgeNum (pi1, pi2);
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if (ednum)
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{
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geom.GetTopEdge(ednum).SetStatus (status);
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// geom.GetTopEdge (ednum).SetStatus (ED_CONFIRMED);
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}
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}
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/*
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int i,n;
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ifs >> n;
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SetSize(n);
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STLEdgeData ed;
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for (i = 1; i <= n; i++)
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{
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ed.Read(ifs);
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Add(ed,i);
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}
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*/
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}
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int STLEdgeDataList :: GetNEPPStat(int p, int status) const
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{
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int i;
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int cnt = 0;
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for (i = 1; i <= GetNEPP(p); i++)
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{
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if (Get(GetEdgePP(p,i)).GetStatus() == status)
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{
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cnt++;
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}
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}
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return cnt;
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}
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int STLEdgeDataList :: GetNConfCandEPP(int p) const
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{
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int i;
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int cnt = 0;
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for (i = 1; i <= GetNEPP(p); i++)
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{
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if (Get(GetEdgePP(p,i)).GetStatus() == ED_CANDIDATE ||
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Get(GetEdgePP(p,i)).GetStatus() == ED_CONFIRMED)
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{
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cnt++;
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}
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}
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return cnt;
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}
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void STLEdgeDataList :: BuildLineWithEdge(int ep1, int ep2, NgArray<twoint>& line)
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{
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int status = Get(GetEdgeNum(ep1,ep2)).GetStatus();
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int found, pstart, p(0), en, pnew(0), ennew(0);
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int closed = 0;
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int j, i;
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for (j = 1; j <= 2; j++)
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{
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if (j == 1) {p = ep1;}
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if (j == 2) {p = ep2;}
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pstart = p;
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en = GetEdgeNum(ep1,ep2);
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found = 1;
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while (found && !closed)
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{
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found = 0;
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if (GetNEPPStat(p,status) == 2)
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{
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for (i = 1; i <= GetNEPP(p); i++)
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{
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const STLTopEdge & e = Get(GetEdgePP(p,i));
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if (GetEdgePP(p,i) != en && e.GetStatus() == status)
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{
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if (e.PNum(1) == p)
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{pnew = e.PNum(2);}
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else
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{pnew = e.PNum(1);}
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ennew = GetEdgePP(p,i);
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}
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}
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if (pnew == pstart) {closed = 1;}
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else
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{
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line.Append(twoint(p,pnew));
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p = pnew;
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en = ennew;
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found = 1;
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}
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}
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}
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}
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}
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int Exists(int p1, int p2, const NgArray<twoint>& line)
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{
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int i;
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for (i = 1; i <= line.Size(); i++)
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{
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if ( (line.Get(i).i1 == p1 && line.Get(i).i2 == p2) ||
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(line.Get(i).i1 == p2 && line.Get(i).i2 == p1) )
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{return 1;}
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}
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return 0;
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}
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void STLEdgeDataList :: BuildClusterWithEdge(int ep1, int ep2, NgArray<twoint>& line)
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{
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int status = Get(GetEdgeNum(ep1,ep2)).GetStatus();
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int p(0), en;
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int j, i, k;
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int oldend;
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int newend = 1;
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STLPointId pnew;
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int ennew(0);
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int changed = 1;
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while (changed)
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{
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changed = 0;
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for (j = 1; j <= 2; j++)
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{
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oldend = newend;
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newend = line.Size();
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for (k = oldend; k <= line.Size(); k++)
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{
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if (j == 1) p = line.Get(k).i1;
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if (j == 2) p = line.Get(k).i2;
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en = GetEdgeNum(line.Get(k).i1, line.Get(k).i2);
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for (i = 1; i <= GetNEPP(p); i++)
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{
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pnew = 0;
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const STLTopEdge & e = Get(GetEdgePP(p,i));
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if (GetEdgePP(p,i) != en && e.GetStatus() == status)
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{
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if (e.PNum(1) == p)
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{pnew = e.PNum(2);}
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else
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{pnew = e.PNum(1);}
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ennew = GetEdgePP(p,i);
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}
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if (pnew && !Exists(p,pnew,line))
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{
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changed = 1;
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line.Append(twoint(p,pnew));
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p = pnew;
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en = ennew;
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}
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}
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}
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}
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}
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}
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//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
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//+++++++++++++++++++ STL LINE +++++++++++++++++++++++++++++++
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//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
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STLLine :: STLLine(const STLGeometry * ageometry)
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: pts(), lefttrigs(), righttrigs()
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{
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geometry = ageometry;
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split = 0;
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};
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int STLLine :: GetNS() const
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{
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if (pts.Size() <= 1) {return 0;}
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return pts.Size()-1;
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}
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void STLLine :: GetSeg(int nr, int& p1, int& p2) const
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{
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p1 = pts.Get(nr);
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p2 = pts.Get(nr+1);
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}
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int STLLine :: GetLeftTrig(int nr) const
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{
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if (nr > lefttrigs.Size()) {PrintSysError("In STLLine::GetLeftTrig!!!"); return 0;}
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return lefttrigs.Get(nr);
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};
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int STLLine :: GetRightTrig(int nr) const
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{
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if (nr > righttrigs.Size()) {PrintSysError("In STLLine::GetRightTrig!!!"); return 0;}
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return righttrigs.Get(nr);
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};
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double STLLine :: GetSegLen(const Array<Point<3>,STLPointId>& ap, int nr) const
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{
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return Dist(ap[PNum(nr)],ap[PNum(nr+1)]);
|
|
}
|
|
|
|
double STLLine :: GetLength(const Array<Point<3>,STLPointId>& ap) const
|
|
{
|
|
double len = 0;
|
|
for (int i = 2; i <= pts.Size(); i++)
|
|
len += (ap[pts.Get(i)] - ap[pts.Get(i-1)]).Length();
|
|
return len;
|
|
}
|
|
|
|
void STLLine :: GetBoundingBox (const Array<Point<3>,STLPointId> & ap, Box<3> & box) const
|
|
{
|
|
box.Set (ap[pts[0]]);
|
|
for (int i = 1; i < pts.Size(); i++)
|
|
box.Add (ap[pts[i]]);
|
|
}
|
|
|
|
|
|
|
|
Point<3> STLLine ::
|
|
GetPointInDist(const Array<Point<3>,STLPointId>& ap, double dist, int& index) const
|
|
{
|
|
if (dist <= 0)
|
|
{
|
|
index = 1;
|
|
return ap[StartP()];
|
|
}
|
|
|
|
double len = 0;
|
|
int i;
|
|
for (i = 1; i < pts.Size(); i++)
|
|
{
|
|
double seglen = Dist (ap[pts.Get(i)],
|
|
ap[pts.Get(i+1)]);
|
|
|
|
if (len + seglen > dist)
|
|
{
|
|
index = i;
|
|
double relval = (dist - len) / (seglen + 1e-16);
|
|
Vec3d v (ap[pts.Get(i)], ap[pts.Get(i+1)]);
|
|
return ap[pts.Get(i)] + relval * v;
|
|
}
|
|
|
|
len += seglen;
|
|
}
|
|
|
|
index = pts.Size() - 1;
|
|
return ap[EndP()];
|
|
}
|
|
|
|
|
|
/*
|
|
double stlgh;
|
|
double GetH(const Point3d& p, double x)
|
|
{
|
|
return stlgh;//+0.5)*(x+0.5);
|
|
}
|
|
*/
|
|
STLLine* STLLine :: Mesh(const Array<Point<3>,STLPointId>& ap,
|
|
NgArray<Point3d>& mp, double ghi,
|
|
class Mesh& mesh) const
|
|
{
|
|
static int timer1a = NgProfiler::CreateTimer ("mesh stl-line 1a");
|
|
static int timer1b = NgProfiler::CreateTimer ("mesh stl-line 1b");
|
|
static int timer2 = NgProfiler::CreateTimer ("mesh stl-line 2");
|
|
static int timer3 = NgProfiler::CreateTimer ("mesh stl-line 3");
|
|
|
|
NgProfiler::StartTimer (timer1a);
|
|
|
|
STLLine* line = new STLLine(geometry);
|
|
|
|
//stlgh = ghi; //uebergangsloesung!!!!
|
|
|
|
double len = GetLength(ap);
|
|
double inthl = 0; //integral of 1/h
|
|
double dist = 0;
|
|
double h;
|
|
int ind;
|
|
Point3d p;
|
|
|
|
Box<3> bbox;
|
|
GetBoundingBox (ap, bbox);
|
|
double diam = bbox.Diam();
|
|
|
|
double minh = mesh.LocalHFunction().GetMinH (bbox.PMin(), bbox.PMax());
|
|
|
|
double maxseglen = 0;
|
|
for (int i = 1; i <= GetNS(); i++)
|
|
maxseglen = max2 (maxseglen, GetSegLen (ap, i));
|
|
|
|
int nph = 10+int(maxseglen / minh); //anzahl der integralauswertungen pro segment
|
|
|
|
NgArray<double> inthi(GetNS()*nph);
|
|
NgArray<double> curvelen(GetNS()*nph);
|
|
|
|
NgProfiler::StopTimer (timer1a);
|
|
NgProfiler::StartTimer (timer1b);
|
|
|
|
|
|
for (int i = 1; i <= GetNS(); i++)
|
|
{
|
|
//double seglen = GetSegLen(ap,i);
|
|
for (int j = 1; j <= nph; j++)
|
|
{
|
|
p = GetPointInDist(ap,dist,ind);
|
|
//h = GetH(p,dist/len);
|
|
h = mesh.GetH(p);
|
|
|
|
|
|
dist += GetSegLen(ap,i)/(double)nph;
|
|
|
|
inthl += GetSegLen(ap,i)/nph/(h);
|
|
inthi.Elem((i-1)*nph+j) = GetSegLen(ap,i)/nph/h;
|
|
curvelen.Elem((i-1)*nph+j) = GetSegLen(ap,i)/nph;
|
|
}
|
|
}
|
|
|
|
|
|
int inthlint = int(inthl+1);
|
|
|
|
if ( (inthlint < 3) && (StartP() == EndP()))
|
|
{
|
|
inthlint = 3;
|
|
}
|
|
if ( (inthlint == 1) && ShouldSplit())
|
|
{
|
|
inthlint = 2;
|
|
}
|
|
|
|
double fact = inthl/(double)inthlint;
|
|
dist = 0;
|
|
int j = 1;
|
|
|
|
|
|
p = ap[StartP()];
|
|
int pn = AddPointIfNotExists(mp, p, 1e-10*diam);
|
|
|
|
int segn = 1;
|
|
line->AddPoint(pn);
|
|
line->AddLeftTrig(GetLeftTrig(segn));
|
|
line->AddRightTrig(GetRightTrig(segn));
|
|
line->AddDist(dist);
|
|
|
|
NgProfiler::StopTimer (timer1b);
|
|
NgProfiler::StartTimer (timer2);
|
|
|
|
inthl = 0; //restart each meshseg
|
|
for (int i = 1; i <= inthlint; i++)
|
|
{
|
|
while (inthl < 1.000000001 && j <= inthi.Size())
|
|
{
|
|
inthl += inthi.Get(j)/fact;
|
|
dist += curvelen.Get(j);
|
|
j++;
|
|
}
|
|
|
|
//went too far:
|
|
j--;
|
|
double tofar = (inthl - 1)/inthi.Get(j);
|
|
inthl -= tofar*inthi.Get(j);
|
|
dist -= tofar*curvelen.Get(j)*fact;
|
|
|
|
if (i == inthlint && fabs(dist - len) >= 1E-8)
|
|
{
|
|
PrintSysError("meshline failed!!!");
|
|
}
|
|
|
|
if (i != inthlint)
|
|
{
|
|
p = GetPointInDist(ap,dist,ind);
|
|
pn = AddPointIfNotExists(mp, p, 1e-10*diam);
|
|
segn = ind;
|
|
line->AddPoint(pn);
|
|
line->AddLeftTrig(GetLeftTrig(segn));
|
|
line->AddRightTrig(GetRightTrig(segn));
|
|
line->AddDist(dist);
|
|
}
|
|
|
|
inthl = tofar*inthi.Get(j);
|
|
dist += tofar*curvelen.Get(j)*fact;
|
|
j++;
|
|
}
|
|
|
|
NgProfiler::StopTimer (timer2);
|
|
NgProfiler::StartTimer (timer3);
|
|
|
|
|
|
p = ap[EndP()];
|
|
pn = AddPointIfNotExists(mp, p, 1e-10*diam);
|
|
segn = GetNS();
|
|
line->AddPoint(pn);
|
|
line->AddLeftTrig(GetLeftTrig(segn));
|
|
line->AddRightTrig(GetRightTrig(segn));
|
|
line->AddDist(dist);
|
|
|
|
for (int ii = 1; ii <= line->GetNS(); ii++)
|
|
{
|
|
int p1, p2;
|
|
line->GetSeg(ii,p1,p2);
|
|
}
|
|
/*
|
|
(*testout) << "line, " << ap.Get(StartP()) << "-" << ap.Get(EndP())
|
|
<< " len = " << Dist (ap.Get(StartP()), ap.Get(EndP())) << endl;
|
|
*/
|
|
|
|
NgProfiler::StopTimer (timer3);
|
|
|
|
return line;
|
|
}
|
|
}
|