mirror of
https://github.com/NGSolve/netgen.git
synced 2024-11-11 16:49:16 +05:00
1470 lines
32 KiB
C++
1470 lines
32 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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//add a point into a pointlist, return pointnumber
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int AddPointIfNotExists(NgArray<Point3d>& ap, const Point3d& p, double eps)
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{
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double eps2 = sqr(eps);
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for (int i = 1; i <= ap.Size(); i++)
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if (Dist2(ap.Get(i),p) <= eps2 )
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return i;
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ap.Append(p);
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return ap.Size();
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}
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//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
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double GetDistFromLine(const Point<3> & lp1, const Point<3> & lp2,
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Point<3> & p)
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{
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Vec3d vn = lp2 - lp1;
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Vec3d v1 = p - lp1;
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Vec3d v2 = lp2 - p;
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Point3d pold = p;
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if (v2 * vn <= 0) {p = lp2; return (pold - p).Length();}
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if (v1 * vn <= 0) {p = lp1; return (pold - p).Length();}
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double vnl = vn.Length();
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if (vnl == 0) {return Dist(lp1,p);}
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vn /= vnl;
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p = lp1 + (v1 * vn) * vn;
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return (pold - p).Length();
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};
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double GetDistFromInfiniteLine(const Point<3>& lp1, const Point<3>& lp2, const Point<3>& p)
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{
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Vec3d vn(lp1, lp2);
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Vec3d v1(lp1, p);
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double vnl = vn.Length();
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if (vnl == 0)
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{
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return Dist (lp1, p);
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}
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else
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{
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return Cross (vn, v1).Length() / vnl;
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}
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};
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//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
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//Binary IO-Manipulation
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void FIOReadInt(istream& ios, int& i)
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{
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const int ilen = sizeof(int);
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char buf[ilen];
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for (int j = 0; j < ilen; j++)
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ios.get(buf[j]);
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memcpy(&i, &buf, ilen);
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}
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void FIOWriteInt(ostream& ios, const int& i)
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{
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const int ilen = sizeof(int);
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char buf[ilen];
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memcpy(&buf, &i, ilen);
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for (int j = 0; j < ilen; j++)
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ios << buf[j];
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}
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void FIOReadDouble(istream& ios, double& i)
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{
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const int ilen = sizeof(double);
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char buf[ilen];
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for (int j = 0; j < ilen; j++)
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ios.get(buf[j]);
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memcpy(&i, &buf, ilen);
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}
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void FIOWriteDouble(ostream& ios, const double& i)
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{
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const int ilen = sizeof(double);
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char buf[ilen];
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memcpy(&buf, &i, ilen);
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for (int j = 0; j < ilen; j++)
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ios << buf[j];
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}
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void FIOReadFloat(istream& ios, float& i)
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{
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const int ilen = sizeof(float);
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char buf[ilen];
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int j;
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for (j = 0; j < ilen; j++)
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{
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ios.get(buf[j]);
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}
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memcpy(&i, &buf, ilen);
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}
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void FIOWriteFloat(ostream& ios, const float& i)
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{
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const int ilen = sizeof(float);
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char buf[ilen];
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memcpy(&buf, &i, ilen);
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for (int j = 0; j < ilen; j++)
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ios << buf[j];
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}
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void FIOReadString(istream& ios, char* str, int len)
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{
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for (int j = 0; j < len; j++)
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ios.get(str[j]);
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}
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//read string and add terminating 0
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void FIOReadStringE(istream& ios, char* str, int len)
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{
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for (int j = 0; j < len; j++)
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ios.get(str[j]);
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str[len] = 0;
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}
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void FIOWriteString(ostream& ios, char* str, int len)
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{
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for (int j = 0; j < len; j++)
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ios << str[j];
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}
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/*
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void FIOReadInt(istream& ios, int& i)
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{
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const int ilen = sizeof(int);
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char buf[ilen];
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int j;
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for (j = 0; j < ilen; j++)
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{
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ios.get(buf[ilen-j-1]);
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}
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memcpy(&i, &buf, ilen);
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}
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void FIOWriteInt(ostream& ios, const int& i)
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{
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const int ilen = sizeof(int);
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char buf[ilen];
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memcpy(&buf, &i, ilen);
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int j;
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for (j = 0; j < ilen; j++)
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{
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ios << buf[ilen-j-1];
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}
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}
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void FIOReadDouble(istream& ios, double& i)
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{
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const int ilen = sizeof(double);
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char buf[ilen];
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int j;
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for (j = 0; j < ilen; j++)
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{
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ios.get(buf[ilen-j-1]);
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}
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memcpy(&i, &buf, ilen);
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}
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void FIOWriteDouble(ostream& ios, const double& i)
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{
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const int ilen = sizeof(double);
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char buf[ilen];
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memcpy(&buf, &i, ilen);
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int j;
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for (j = 0; j < ilen; j++)
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{
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ios << buf[ilen-j-1];
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}
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}
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void FIOReadFloat(istream& ios, float& i)
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{
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const int ilen = sizeof(float);
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char buf[ilen];
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int j;
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for (j = 0; j < ilen; j++)
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{
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ios.get(buf[ilen-j-1]);
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}
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memcpy(&i, &buf, ilen);
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}
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void FIOWriteFloat(ostream& ios, const float& i)
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{
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const int ilen = sizeof(float);
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char buf[ilen];
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memcpy(&buf, &i, ilen);
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int j;
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for (j = 0; j < ilen; j++)
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{
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ios << buf[ilen-j-1];
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}
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}
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void FIOReadString(istream& ios, char* str, int len)
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{
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int j;
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for (j = 0; j < len; j++)
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{
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ios.get(str[j]);
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}
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}
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//read string and add terminating 0
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void FIOReadStringE(istream& ios, char* str, int len)
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{
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int j;
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for (j = 0; j < len; j++)
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{
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ios.get(str[j]);
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}
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str[len] = 0;
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}
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void FIOWriteString(ostream& ios, char* str, int len)
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{
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int j;
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for (j = 0; j < len; j++)
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{
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ios << str[j];
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}
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}
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*/
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//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
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STLReadTriangle :: STLReadTriangle (const Point<3> * apts,
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const Vec<3> & anormal)
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{
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pts[0] = apts[0];
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pts[1] = apts[1];
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pts[2] = apts[2];
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normal = anormal;
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}
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STLTriangle :: STLTriangle(const int * apts)
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{
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pts[0] = apts[0];
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pts[1] = apts[1];
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pts[2] = apts[2];
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facenum = 0;
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}
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int STLTriangle :: IsNeighbourFrom(const STLTriangle& t) const
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{
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//triangles must have same orientation!!!
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for(int i = 0; i <= 2; i++)
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for(int j = 0; j <= 2; j++)
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if (t.pts[(i+1)%3] == pts[j] &&
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t.pts[i] == pts[(j+1)%3])
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return 1;
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return 0;
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}
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int STLTriangle :: IsWrongNeighbourFrom(const STLTriangle& t) const
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{
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//triangles have not same orientation!!!
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for(int i = 0; i <= 2; i++)
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for(int j = 0; j <= 2; j++)
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if (t.pts[(i+1)%3] == pts[(j+1)%3] &&
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t.pts[i] == pts[j])
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return 1;
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return 0;
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}
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void STLTriangle :: GetNeighbourPoints(const STLTriangle& t, int& p1, int& p2) const
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{
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for(int i = 1; i <= 3; i++)
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for(int j = 1; j <= 3; j++)
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if (t.PNumMod(i+1) == PNumMod(j) &&
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t.PNumMod(i) == PNumMod(j+1))
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{
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p1 = PNumMod(j);
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p2 = PNumMod(j+1);
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return;
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}
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PrintSysError("Get neighbourpoints failed!");
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}
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int STLTriangle :: GetNeighbourPointsAndOpposite(const STLTriangle& t, int& p1, int& p2, int& po) const
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{
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for(int i = 1; i <= 3; i++)
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for(int j = 1; j <= 3; j++)
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if (t.PNumMod(i+1) == PNumMod(j) &&
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t.PNumMod(i) == PNumMod(j+1))
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{
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p1 = PNumMod(j);
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p2 = PNumMod(j+1);
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po = PNumMod(j+2);
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return 1;
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}
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return 0;
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}
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Vec<3> STLTriangle :: GeomNormal(const NgArray<Point<3> >& ap) const
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{
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const Point<3> & p1 = ap.Get(PNum(1));
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const Point<3> & p2 = ap.Get(PNum(2));
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const Point<3> & p3 = ap.Get(PNum(3));
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return Cross(p2-p1, p3-p1);
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}
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void STLTriangle :: SetNormal (const Vec<3> & n)
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{
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double len = n.Length();
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if (len > 0)
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{
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normal = n;
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normal.Normalize();
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}
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else
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{
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normal = Vec<3> (1, 0, 0);
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}
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}
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void STLTriangle :: ChangeOrientation()
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{
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normal *= -1;
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Swap(pts[0],pts[1]);
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}
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double STLTriangle :: Area(const NgArray<Point<3> >& ap) const
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{
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return 0.5 * Cross(ap.Get(PNum(2))-ap.Get(PNum(1)),
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ap.Get(PNum(3))-ap.Get(PNum(1))).Length();
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}
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double STLTriangle :: MinHeight(const NgArray<Point<3> >& ap) const
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{
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double ml = MaxLength(ap);
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if (ml != 0) {return 2.*Area(ap)/ml;}
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PrintWarning("max Side Length of a triangle = 0!!!");
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return 0;
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}
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double STLTriangle :: MaxLength(const NgArray<Point<3> >& ap) const
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{
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return max3(Dist(ap.Get(PNum(1)),ap.Get(PNum(2))),
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Dist(ap.Get(PNum(2)),ap.Get(PNum(3))),
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Dist(ap.Get(PNum(3)),ap.Get(PNum(1))));
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}
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void STLTriangle :: ProjectInPlain(const NgArray<Point<3> >& ap,
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const Vec<3> & n, Point<3> & pp) const
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{
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const Point<3> & p1 = ap.Get(PNum(1));
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const Point<3> & p2 = ap.Get(PNum(2));
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const Point<3> & p3 = ap.Get(PNum(3));
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Vec<3> v1 = p2 - p1;
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Vec<3> v2 = p3 - p1;
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Vec<3> nt = Cross(v1, v2);
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double c = - (p1(0)*nt(0) + p1(1)*nt(1) + p1(2)*nt(2));
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double prod = n * nt;
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if (fabs(prod) == 0)
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{
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pp = Point<3>(1.E20,1.E20,1.E20);
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return;
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}
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double nfact = -(pp(0)*nt(0) + pp(1)*nt(1) + pp(2)*nt(2) + c) / (prod);
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pp = pp + (nfact) * n;
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}
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int STLTriangle :: ProjectInPlain (const NgArray<Point<3> >& ap,
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const Vec<3> & nproj,
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Point<3> & pp, Vec<3> & lam) const
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{
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const Point<3> & p1 = ap.Get(PNum(1));
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const Point<3> & p2 = ap.Get(PNum(2));
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const Point<3> & p3 = ap.Get(PNum(3));
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Vec<3> v1 = p2-p1;
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Vec<3> v2 = p3-p1;
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Mat<3> mat;
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for (int i = 0; i < 3; i++)
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{
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mat(i,0) = v1(i);
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mat(i,1) = v2(i);
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mat(i,2) = nproj(i);
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}
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int err = 0;
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mat.Solve (pp-p1, lam);
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// int err = SolveLinearSystem (v1, v2, nproj, pp-p1, lam);
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if (!err)
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{
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// pp = p1 + lam(0) * v1 + lam(1) * v2;
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pp(0) = p1(0) + lam(0) * v1(0) + lam(1) * v2(0);
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pp(1) = p1(1) + lam(0) * v1(1) + lam(1) * v2(1);
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pp(2) = p1(2) + lam(0) * v1(2) + lam(1) * v2(2);
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}
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return err;
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}
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void STLTriangle :: ProjectInPlain(const NgArray<Point<3> >& ap,
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Point<3> & pp) const
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{
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const Point<3> & p1 = ap.Get(PNum(1));
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const Point<3> & p2 = ap.Get(PNum(2));
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const Point<3> & p3 = ap.Get(PNum(3));
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Vec<3> v1 = p2 - p1;
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Vec<3> v2 = p3 - p1;
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Vec<3> nt = Cross(v1, v2);
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double c = - (p1(0)*nt(0) + p1(1)*nt(1) + p1(2)*nt(2));
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double prod = nt * nt;
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double nfact = -(pp(0)*nt(0) + pp(1)*nt(1) + pp(2)*nt(2) + c) / (prod);
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pp = pp + (nfact) * nt;
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}
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int STLTriangle :: PointInside(const NgArray<Point<3> > & ap,
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const Point<3> & pp) const
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{
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const Point<3> & p1 = ap.Get(PNum(1));
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const Point<3> & p2 = ap.Get(PNum(2));
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const Point<3> & p3 = ap.Get(PNum(3));
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Vec<3> v1 = p2 - p1;
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Vec<3> v2 = p3 - p1;
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Vec<3> v = pp - p1;
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double det, l1, l2;
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Vec<3> ex, ey, ez;
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ez = GeomNormal(ap);
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ez /= ez.Length();
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ex = v1;
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ex /= ex.Length();
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ey = Cross (ez, ex);
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Vec<2> v1p(v1*ex, v1*ey);
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Vec<2> v2p(v2*ex, v2*ey);
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Vec<2> vp(v*ex, v*ey);
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det = v2p(1) * v1p(0) - v2p(0) * v1p(1);
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if (fabs(det) == 0) {return 0;}
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l2 = (vp(1) * v1p(0) - vp(0) * v1p(1)) / det;
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if (v1p(0) != 0.)
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{
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l1 = (vp(0) - l2 * v2p(0)) / v1p(0);
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}
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else if (v1p(1) != 0.)
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{
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l1 = (vp(1) - l2 * v2p(1)) / v1p(1);
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}
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else {return 0;}
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if (l1 >= -1E-10 && l2 >= -1E-10 && l1 + l2 <= 1.+1E-10) {return 1;}
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return 0;
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}
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double STLTriangle :: GetNearestPoint(const NgArray<Point<3> >& ap,
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Point<3> & p3d) const
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{
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Point<3> p = p3d;
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ProjectInPlain(ap, p);
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double dist = (p - p3d).Length();
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if (PointInside(ap, p)) {p3d = p; return dist;}
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else
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{
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Point<3> pf = 0.0;
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double nearest = 1E50;
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//int fi = 0;
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for (int j = 1; j <= 3; j++)
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{
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p = p3d;
|
|
dist = GetDistFromLine(ap.Get(PNum(j)), ap.Get(PNumMod(j+1)), p);
|
|
if (dist < nearest)
|
|
{
|
|
nearest = dist;
|
|
pf = p;
|
|
}
|
|
}
|
|
p3d = pf;
|
|
return nearest;
|
|
}
|
|
}
|
|
|
|
int STLTriangle :: HasEdge(int p1, int p2) const
|
|
{
|
|
int i;
|
|
for (i = 1; i <= 3; i++)
|
|
{
|
|
if (p1 == PNum(i) && p2 == PNumMod(i+1)) {return 1;}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
ostream& operator<<(ostream& os, const STLTriangle& t)
|
|
{
|
|
os << "[";
|
|
os << t[0] << ",";
|
|
os << t[1] << ",";
|
|
os << t[2] << "]";
|
|
|
|
return os;
|
|
};
|
|
|
|
|
|
|
|
STLTopEdge :: STLTopEdge ()
|
|
{
|
|
pts[0] = pts[1] = 0;
|
|
trigs[0] = trigs[1] = 0;
|
|
cosangle = 1;
|
|
status = ED_UNDEFINED;
|
|
}
|
|
|
|
STLTopEdge :: STLTopEdge (int p1, int p2, int trig1, int trig2)
|
|
{
|
|
pts[0] = p1;
|
|
pts[1] = p2;
|
|
trigs[0] = trig1;
|
|
trigs[1] = trig2;
|
|
cosangle = 1;
|
|
status = ED_UNDEFINED;
|
|
}
|
|
|
|
|
|
|
|
|
|
//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
|
|
//+++++++++++++++++++ STL CHART +++++++++++++++++++++++++++++++
|
|
//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
|
|
|
|
STLChart :: STLChart(STLGeometry * ageometry, const STLParameters& astlparam)
|
|
: geometry(ageometry), stlparam(astlparam)
|
|
{
|
|
// charttrigs = new NgArray<int> (0,0);
|
|
// outertrigs = new NgArray<int> (0,0);
|
|
// ilimit = new NgArray<twoint> (0,0);
|
|
// olimit = new NgArray<twoint> (0,0);
|
|
|
|
geometry = ageometry;
|
|
|
|
if ( stlparam.usesearchtree == 1)
|
|
{
|
|
Box<3> box = geometry->GetBoundingBox();
|
|
box.Increase (0.2*box.Diam()+1e-12);
|
|
searchtree = new BoxTree<3> (box);
|
|
/*
|
|
searchtree = new BoxTree<3> (geometry->GetBoundingBox().PMin() - Vec3d(1,1,1),
|
|
geometry->GetBoundingBox().PMax() + Vec3d(1,1,1));
|
|
*/
|
|
}
|
|
else
|
|
searchtree = NULL;
|
|
}
|
|
|
|
STLChart :: ~STLChart()
|
|
{
|
|
delete searchtree;
|
|
}
|
|
|
|
void STLChart :: AddChartTrig(int i)
|
|
{
|
|
// static int timer = NgProfiler::CreateTimer ("STLChart::AddChartTrig");
|
|
// NgProfiler::RegionTimer reg(timer);
|
|
|
|
charttrigs.Append(i);
|
|
|
|
const STLTriangle & trig = geometry->GetTriangle(i);
|
|
const Point<3> & p1 = geometry->GetPoint (trig.PNum(1));
|
|
const Point<3> & p2 = geometry->GetPoint (trig.PNum(2));
|
|
const Point<3> & p3 = geometry->GetPoint (trig.PNum(3));
|
|
|
|
/*
|
|
Point3d pmin(p1), pmax(p1);
|
|
pmin.SetToMin (p2);
|
|
pmin.SetToMin (p3);
|
|
pmax.SetToMax (p2);
|
|
pmax.SetToMax (p3);
|
|
*/
|
|
/*
|
|
Box<3> box(p1);
|
|
box.Add(p2);
|
|
box.Add(p3);
|
|
*/
|
|
Box<3> box(p1,p2,p3);
|
|
if (!geomsearchtreeon && (stlparam.usesearchtree == 1))
|
|
// {searchtree->Insert (pmin, pmax, i);}
|
|
{
|
|
searchtree->Insert (box, i);
|
|
}
|
|
}
|
|
|
|
void STLChart :: AddOuterTrig(int i)
|
|
{
|
|
// static int timer = NgProfiler::CreateTimer ("STLChart::AddOuterTrig");
|
|
// NgProfiler::RegionTimer reg(timer);
|
|
|
|
outertrigs.Append(i);
|
|
|
|
const STLTriangle & trig = geometry->GetTriangle(i);
|
|
const Point3d & p1 = geometry->GetPoint (trig.PNum(1));
|
|
const Point3d & p2 = geometry->GetPoint (trig.PNum(2));
|
|
const Point3d & p3 = geometry->GetPoint (trig.PNum(3));
|
|
|
|
Point3d pmin(p1), pmax(p1);
|
|
pmin.SetToMin (p2);
|
|
pmin.SetToMin (p3);
|
|
pmax.SetToMax (p2);
|
|
pmax.SetToMax (p3);
|
|
|
|
if (!geomsearchtreeon && (stlparam.usesearchtree==1))
|
|
{searchtree->Insert (pmin, pmax, i);}
|
|
}
|
|
|
|
int STLChart :: IsInWholeChart(int nr) const
|
|
{
|
|
for (int i = 1; i <= charttrigs.Size(); i++)
|
|
if (charttrigs.Get(i) == nr) return 1;
|
|
|
|
for (int i = 1; i <= outertrigs.Size(); i++)
|
|
if (outertrigs.Get(i) == nr) return 1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
void STLChart :: GetTrianglesInBox (const Point3d & pmin,
|
|
const Point3d & pmax,
|
|
NgArray<int> & trias) const
|
|
{
|
|
if (geomsearchtreeon) {PrintMessage(5,"geomsearchtreeon is set!!!");}
|
|
|
|
if (searchtree)
|
|
searchtree -> GetIntersecting (pmin, pmax, trias);
|
|
else
|
|
{
|
|
Box<3> box1(pmin, pmax);
|
|
box1.Increase (1e-2*box1.Diam());
|
|
|
|
trias.SetSize(0);
|
|
|
|
int nt = GetNT();
|
|
for (int i = 1; i <= nt; i++)
|
|
{
|
|
int trignum = GetTrig(i);
|
|
const STLTriangle & trig = geometry->GetTriangle(trignum);
|
|
Box<3> box2(geometry->GetPoint (trig.PNum(1)),
|
|
geometry->GetPoint (trig.PNum(2)),
|
|
geometry->GetPoint (trig.PNum(3)));
|
|
|
|
if (box1.Intersect (box2))
|
|
trias.Append (trignum);
|
|
}
|
|
}
|
|
}
|
|
|
|
//trigs may contain the same triangle double
|
|
void STLChart :: MoveToOuterChart(const NgArray<int>& trigs)
|
|
{
|
|
if (!trigs.Size()) return;
|
|
for (int i = 1; i <= trigs.Size(); i++)
|
|
{
|
|
if (charttrigs.Get(trigs.Get(i)) != -1)
|
|
{AddOuterTrig(charttrigs.Get(trigs.Get(i)));}
|
|
charttrigs.Elem(trigs.Get(i)) = -1;
|
|
}
|
|
DelChartTrigs(trigs);
|
|
}
|
|
|
|
//trigs may contain the same triangle double
|
|
void STLChart :: DelChartTrigs(const NgArray<int>& trigs)
|
|
{
|
|
if (!trigs.Size()) return;
|
|
|
|
for (int i = 1; i <= trigs.Size(); i++)
|
|
charttrigs.Elem(trigs.Get(i)) = -1;
|
|
|
|
int cnt = 0;
|
|
for (int i = 1; i <= charttrigs.Size(); i++)
|
|
{
|
|
if (charttrigs.Elem(i) == -1)
|
|
cnt++;
|
|
if (cnt != 0 && i < charttrigs.Size())
|
|
charttrigs.Elem(i-cnt+1) = charttrigs.Get(i+1);
|
|
}
|
|
|
|
int i = charttrigs.Size() - trigs.Size();
|
|
charttrigs.SetSize(i);
|
|
|
|
if (!geomsearchtreeon && stlparam.usesearchtree == 1)
|
|
{
|
|
PrintMessage(7, "Warning: unsecure routine due to first use of searchtrees!!!");
|
|
//bould new searchtree!!!
|
|
searchtree = new BoxTree<3> (geometry->GetBoundingBox().PMin() - Vec3d(1,1,1),
|
|
geometry->GetBoundingBox().PMax() + Vec3d(1,1,1));
|
|
|
|
for (int i = 1; i <= charttrigs.Size(); i++)
|
|
{
|
|
const STLTriangle & trig = geometry->GetTriangle(i);
|
|
const Point3d & p1 = geometry->GetPoint (trig.PNum(1));
|
|
const Point3d & p2 = geometry->GetPoint (trig.PNum(2));
|
|
const Point3d & p3 = geometry->GetPoint (trig.PNum(3));
|
|
|
|
Point3d pmin(p1), pmax(p1);
|
|
pmin.SetToMin (p2);
|
|
pmin.SetToMin (p3);
|
|
pmax.SetToMax (p2);
|
|
pmax.SetToMax (p3);
|
|
|
|
searchtree->Insert (pmin, pmax, i);
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
void STLChart :: SetNormal (const Point<3> & apref, const Vec<3> & anormal)
|
|
{
|
|
pref = apref;
|
|
normal = anormal;
|
|
double len = normal.Length();
|
|
if (len) normal /= len;
|
|
else normal = Vec<3> (1, 0, 0);
|
|
|
|
t1 = normal.GetNormal ();
|
|
t2 = Cross (normal, t1);
|
|
}
|
|
|
|
/*
|
|
Point<2> STLChart :: Project2d (const Point<3> & p3d) const
|
|
{
|
|
Vec<3> v = p3d-pref;
|
|
return Point<2> (t1 * v, t2 * v);
|
|
}
|
|
*/
|
|
|
|
|
|
|
|
/*
|
|
Point3d p1, p2, center;
|
|
double rad;
|
|
int i1, i2;
|
|
public:
|
|
*/
|
|
|
|
/*
|
|
STLBoundarySeg ::
|
|
STLBoundarySeg (int ai1, int ai2, const NgArray<Point<3> > & points,
|
|
const STLChart * chart)
|
|
{
|
|
i1 = ai1;
|
|
i2 = ai2;
|
|
p1 = points.Get(i1);
|
|
p2 = points.Get(i2);
|
|
center = ::netgen::Center (p1, p2);
|
|
rad = Dist (p1, center);
|
|
|
|
p2d1 = chart->Project2d (p1);
|
|
p2d2 = chart->Project2d (p2);
|
|
|
|
boundingbox.Set (p2d1);
|
|
boundingbox.Add (p2d2);
|
|
}
|
|
*/
|
|
|
|
void STLBoundarySeg :: Swap ()
|
|
{
|
|
::netgen::Swap (i1, i2);
|
|
::netgen::Swap (p1, p2);
|
|
}
|
|
|
|
|
|
|
|
STLBoundary :: STLBoundary (STLGeometry * ageometry)
|
|
: geometry(ageometry)
|
|
{ ; }
|
|
|
|
|
|
void STLBoundary :: AddOrDelSegment(const STLBoundarySeg & seg)
|
|
{
|
|
bool found = false;
|
|
for (int i = 1; i <= boundary.Size(); i++)
|
|
{
|
|
if (found) { boundary.Elem(i-1) = boundary.Get(i); }
|
|
if (boundary.Get(i) == seg) { found = true; }
|
|
}
|
|
if (!found)
|
|
{
|
|
boundary.Append(seg);
|
|
}
|
|
else
|
|
{
|
|
boundary.SetSize(boundary.Size()-1);
|
|
}
|
|
}
|
|
|
|
void STLBoundary ::AddTriangle(const STLTriangle & t)
|
|
{
|
|
// static int timer_old = NgProfiler::CreateTimer ("STLChart::AddTriangle_old");
|
|
// static int timer_new = NgProfiler::CreateTimer ("STLChart::AddTriangle_new");
|
|
|
|
// NgProfiler::StartTimer (timer_old);
|
|
|
|
#ifdef ADDTRIGOLD
|
|
int i;
|
|
int found1 = 0;
|
|
int found2 = 0;
|
|
int found3 = 0;
|
|
//int offset = 0;
|
|
|
|
|
|
STLBoundarySeg seg1(t[0],t[1], geometry->GetPoints(), chart);
|
|
STLBoundarySeg seg2(t[1],t[2], geometry->GetPoints(), chart);
|
|
STLBoundarySeg seg3(t[2],t[0], geometry->GetPoints(), chart);
|
|
|
|
seg1.SetSmoothEdge (geometry->IsSmoothEdge (seg1.I1(), seg1.I2()));
|
|
seg2.SetSmoothEdge (geometry->IsSmoothEdge (seg2.I1(), seg2.I2()));
|
|
seg3.SetSmoothEdge (geometry->IsSmoothEdge (seg3.I1(), seg3.I2()));
|
|
|
|
/*
|
|
for (i = 1; i <= boundary.Size(); i++)
|
|
{
|
|
if (offset) {boundary.Elem(i-offset) = boundary.Get(i);}
|
|
if (boundary.Get(i) == seg1) {found1 = 1; offset++;}
|
|
if (boundary.Get(i) == seg2) {found2 = 1; offset++;}
|
|
if (boundary.Get(i) == seg3) {found3 = 1; offset++;}
|
|
}
|
|
|
|
if (offset)
|
|
{
|
|
boundary.SetSize(boundary.Size()-offset);
|
|
}
|
|
*/
|
|
for (i = boundary.Size(); i >= 1; i--)
|
|
{
|
|
if (boundary.Get(i) == seg1)
|
|
{ boundary.DeleteElement (i); found1 = 1; }
|
|
else if (boundary.Get(i) == seg2)
|
|
{ boundary.DeleteElement (i); found2 = 1; }
|
|
else if (boundary.Get(i) == seg3)
|
|
{ boundary.DeleteElement (i); found3 = 1; }
|
|
}
|
|
|
|
if (!found1)
|
|
{
|
|
seg1.Swap();
|
|
boundary.Append(seg1);
|
|
/*
|
|
int newnr;
|
|
if (freelist.Size())
|
|
{
|
|
newnr = freelist.Last();
|
|
freelist.DeleteLast();
|
|
boundary[newnr] = seg1;
|
|
}
|
|
else
|
|
{
|
|
boundary.Append(seg1);
|
|
newnr = boundary.Size();
|
|
}
|
|
// cout << "tree add el " << boundary.Size() << endl;
|
|
if (searchtree)
|
|
{
|
|
// cout << "add " << boundary.Size() << endl;
|
|
searchtree->Insert (seg1.BoundingBox(), newnr);
|
|
}
|
|
*/
|
|
}
|
|
|
|
if (!found2)
|
|
{
|
|
seg2.Swap();
|
|
boundary.Append(seg2);
|
|
/*
|
|
int newnr;
|
|
if (freelist.Size())
|
|
{
|
|
newnr = freelist.Last();
|
|
freelist.DeleteLast();
|
|
boundary[newnr] = seg2;
|
|
}
|
|
else
|
|
{
|
|
boundary.Append(seg2);
|
|
newnr = boundary.Size();
|
|
}
|
|
|
|
// boundary.Append(seg2);
|
|
// cout << "tree add el " << boundary.Size() << endl;
|
|
if (searchtree)
|
|
{
|
|
// cout << "add " << boundary.Size() << endl;
|
|
searchtree->Insert (seg2.BoundingBox(), newnr);
|
|
}
|
|
*/
|
|
}
|
|
if (!found3)
|
|
{
|
|
seg3.Swap();
|
|
boundary.Append(seg3);
|
|
/*
|
|
int newnr;
|
|
if (freelist.Size())
|
|
{
|
|
newnr = freelist.Last();
|
|
freelist.DeleteLast();
|
|
boundary[newnr] = seg3;
|
|
}
|
|
else
|
|
{
|
|
boundary.Append(seg3);
|
|
newnr = boundary.Size();
|
|
}
|
|
|
|
// cout << "tree add el " << boundary.Size() << endl;
|
|
if (searchtree)
|
|
{
|
|
// cout << "add " << boundary.Size() << endl;
|
|
searchtree->Insert (seg3.BoundingBox(), newnr);
|
|
}
|
|
*/
|
|
}
|
|
#endif
|
|
|
|
// NgProfiler::StopTimer (timer_old);
|
|
|
|
// NgProfiler::StartTimer (timer_new);
|
|
|
|
INDEX_2 segs[3];
|
|
segs[0] = INDEX_2(t[0], t[1]);
|
|
segs[1] = INDEX_2(t[1], t[2]);
|
|
segs[2] = INDEX_2(t[2], t[0]);
|
|
|
|
for (auto seg : segs)
|
|
{
|
|
STLBoundarySeg bseg(seg[0], seg[1], geometry->GetPoints(), chart);
|
|
bseg.SetSmoothEdge (geometry->IsSmoothEdge (seg[0],seg[1]));
|
|
|
|
INDEX_2 op(seg[1], seg[0]);
|
|
if (boundary_ht.Used(op))
|
|
{
|
|
// cout << "delete " << op << endl;
|
|
boundary_ht.Delete(op);
|
|
}
|
|
else
|
|
{
|
|
// cout << "insert " << seg << endl;
|
|
boundary_ht[seg] = bseg;
|
|
}
|
|
}
|
|
/*
|
|
// cout << "bounds = " << boundary << endl;
|
|
cout << "bounds:";
|
|
for (auto & val : boundary)
|
|
cout << val.I1() << "-" << val.I2() << endl;
|
|
cout << "ht = " << boundary_ht << endl;
|
|
if (boundary_ht.UsedElements() != boundary.Size())
|
|
{
|
|
cout << "wrong count" << endl;
|
|
char key;
|
|
cin >> key;
|
|
}
|
|
*/
|
|
// NgProfiler::StopTimer (timer_new);
|
|
}
|
|
|
|
int STLBoundary :: TestSeg(const Point<3>& p1, const Point<3> & p2, const Vec<3> & sn,
|
|
double sinchartangle, int divisions, NgArray<Point<3> >& points, double eps)
|
|
{
|
|
if (usechartnormal)
|
|
return TestSegChartNV (p1, p2, sn);
|
|
|
|
#ifdef NONE
|
|
// for statistics
|
|
{
|
|
int i;
|
|
static NgArray<int> cntclass;
|
|
static int cnt = 0;
|
|
static int cnti = 0, cnto = 0;
|
|
static long int cntsegs = 0;
|
|
if (cntclass.Size() == 0)
|
|
{
|
|
cntclass.SetSize (20);
|
|
for (i = 1; i <= cntclass.Size(); i++)
|
|
cntclass.Elem(i) = 0;
|
|
}
|
|
|
|
cntsegs += NOSegments();
|
|
int cla = int (log (double(NOSegments()+1)) / log(2.0));
|
|
if (cla < 1) cla = 1;
|
|
if (cla > cntclass.Size()) cla = cntclass.Size();
|
|
cntclass.Elem(cla)++;
|
|
cnt++;
|
|
if (divisions)
|
|
cnti++;
|
|
else
|
|
cnto++;
|
|
if (cnt > 100000)
|
|
{
|
|
cnt = 0;
|
|
/*
|
|
(*testout) << "TestSeg-calls for classes:" << endl;
|
|
(*testout) << cnti << " inner calls, " << cnto << " outercalls" << endl;
|
|
(*testout) << "total testes segments: " << cntsegs << endl;
|
|
for (i = 1; i <= cntclass.Size(); i++)
|
|
{
|
|
(*testout) << int (exp (i * log(2.0))) << " bnd segs: " << cntclass.Get(i) << endl;
|
|
}
|
|
*/
|
|
}
|
|
}
|
|
#endif
|
|
|
|
int i,j,k;
|
|
Point<3> seg1p/*, seg2p*/;
|
|
Point<3> sp1,sp2;
|
|
double lambda1, lambda2, vlen2;
|
|
Vec<3> vptpl;
|
|
double sinchartangle2 = sqr(sinchartangle);
|
|
double scal;
|
|
int possible;
|
|
|
|
//double maxval = -1;
|
|
//double maxvalnew = -1;
|
|
|
|
|
|
|
|
double scalp1 = p1(0) * sn(0) + p1(1) * sn(1) + p1(2) * sn(2);
|
|
double scalp2 = p2(0) * sn(0) + p2(1) * sn(1) + p2(2) * sn(2);
|
|
double minl = min2(scalp1, scalp2);
|
|
double maxl = max2(scalp1, scalp2);
|
|
Point<3> c = Center (p1, p2);
|
|
double dist1 = Dist (c, p1);
|
|
|
|
int nseg = NOSegments();
|
|
for (j = 1; j <= nseg; j++)
|
|
{
|
|
const STLBoundarySeg & seg = GetSegment(j);
|
|
|
|
|
|
if (seg.IsSmoothEdge())
|
|
continue;
|
|
|
|
|
|
sp1 = seg.P1();
|
|
sp2 = seg.P2();
|
|
|
|
// Test, ob Spiral Konfikt moeglich
|
|
|
|
possible = 1;
|
|
|
|
double scalsp1 = sp1(0) * sn(0) + sp1(1) * sn(1) + sp1(2) * sn(2);
|
|
double scalsp2 = sp2(0) * sn(0) + sp2(1) * sn(1) + sp2(2) * sn(2);
|
|
|
|
double minsl = min2(scalsp1, scalsp2);
|
|
double maxsl = max2(scalsp1, scalsp2);
|
|
|
|
double maxdiff = max2 (maxsl - minl, maxl - minsl);
|
|
|
|
/*
|
|
Point3d sc = Center (sp1, sp2);
|
|
double mindist = Dist(c, sc) - dist1 - GetSegment(j).Radius();
|
|
if (maxdiff < sinchartangle * mindist)
|
|
{
|
|
possible = 0;
|
|
}
|
|
*/
|
|
|
|
double hscal = maxdiff + sinchartangle * (dist1 + seg.Radius());
|
|
if (hscal * hscal < sinchartangle * Dist2(c, seg.center ))
|
|
possible = 0;
|
|
|
|
|
|
/*
|
|
if (possible)
|
|
{
|
|
double mindist2ex = MinDistLL2 (p1, p2, sp1, sp2);
|
|
if (maxdiff * maxdiff < sinchartangle2 * mindist2ex)
|
|
possible = 0;
|
|
}
|
|
*/
|
|
|
|
if (possible)
|
|
{
|
|
LinearPolynomial2V lp (scalp1 - scalsp1,
|
|
scalp2 - scalp1,
|
|
-(scalsp2 - scalsp1));
|
|
QuadraticPolynomial2V slp;
|
|
slp.Square (lp);
|
|
|
|
|
|
Vec3d v (p1, sp1);
|
|
Vec3d vl (p1, p2);
|
|
Vec3d vsl (sp1, sp2);
|
|
|
|
QuadraticPolynomial2V qp (v.Length2(),
|
|
-2 * (v * vl),
|
|
2 * (v * vsl),
|
|
vl.Length2(),
|
|
-2 * (vl * vsl),
|
|
vsl.Length2());
|
|
|
|
slp.Add (-sinchartangle2, qp);
|
|
|
|
double hv = slp.MaxUnitSquare();
|
|
|
|
if (hv > eps) return 0;
|
|
/*
|
|
if (hv > maxvalnew)
|
|
maxvalnew = hv;
|
|
*/
|
|
}
|
|
|
|
|
|
// if (possible && 0)
|
|
if (false)
|
|
|
|
for (i = 0; i <= divisions; i++)
|
|
{
|
|
|
|
lambda1 = (double)i/(double)divisions;
|
|
seg1p = Point3d(p1(0)*lambda1+p2(0)*(1.-lambda1),
|
|
p1(1)*lambda1+p2(1)*(1.-lambda1),
|
|
p1(2)*lambda1+p2(2)*(1.-lambda1));
|
|
|
|
|
|
|
|
for (k = 0; k <= divisions; k++)
|
|
{
|
|
lambda2 = (double)k/(double)divisions;
|
|
vptpl = Vec3d(sp1(0)*lambda2+sp2(0)*(1.-lambda2)-seg1p(0),
|
|
sp1(1)*lambda2+sp2(1)*(1.-lambda2)-seg1p(1),
|
|
sp1(2)*lambda2+sp2(2)*(1.-lambda2)-seg1p(2));
|
|
|
|
vlen2 = vptpl.Length2();
|
|
|
|
// if (vlen2 > 0)
|
|
{
|
|
scal = vptpl * sn;
|
|
double hv = scal*scal - sinchartangle2*vlen2;
|
|
|
|
|
|
|
|
/*
|
|
if (hv > maxval)
|
|
maxval = hv;
|
|
*/
|
|
if (hv > eps) return 0;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return 1;
|
|
// return (maxvalnew < eps);
|
|
}
|
|
|
|
void STLBoundary :: BuildSearchTree()
|
|
{
|
|
// static int timer = NgProfiler::CreateTimer ("BuildSearchTree");
|
|
// NgProfiler::RegionTimer reg(timer);
|
|
|
|
delete searchtree;
|
|
|
|
/*
|
|
Box<2> box2d(Box<2>::EMPTY_BOX);
|
|
|
|
int nseg = NOSegments();
|
|
for (int j = 1; j <= nseg; j++)
|
|
{
|
|
const STLBoundarySeg & seg = GetSegment(j);
|
|
if (seg.IsSmoothEdge()) continue;
|
|
box2d.Add(seg.BoundingBox().PMin());
|
|
box2d.Add(seg.BoundingBox().PMax());
|
|
}
|
|
|
|
searchtree = new BoxTree<2> (box2d);
|
|
|
|
for (int j = 1; j <= nseg; j++)
|
|
{
|
|
const STLBoundarySeg & seg = GetSegment(j);
|
|
if (seg.IsSmoothEdge()) continue;
|
|
searchtree -> Insert (seg.BoundingBox(), j);
|
|
}
|
|
*/
|
|
Box<2> box2d(Box<2>::EMPTY_BOX);
|
|
Box<3> box3d = geometry->GetBoundingBox();
|
|
for (size_t i = 0; i < 8; i++)
|
|
box2d.Add ( chart->Project2d (box3d.GetPointNr(i)));
|
|
searchtree = new BoxTree<2,INDEX_2> (box2d);
|
|
}
|
|
|
|
void STLBoundary :: DeleteSearchTree()
|
|
{
|
|
// static int timer = NgProfiler::CreateTimer ("DeleteSearchTree");
|
|
// NgProfiler::RegionTimer reg(timer);
|
|
|
|
delete searchtree;
|
|
searchtree = nullptr;
|
|
}
|
|
|
|
// checks, whether 2d projection intersects
|
|
int STLBoundary :: TestSegChartNV(const Point3d & p1, const Point3d& p2,
|
|
const Vec3d& sn)
|
|
{
|
|
// static int timerquick = NgProfiler::CreateTimer ("TestSegChartNV-searchtree");
|
|
// static int timer = NgProfiler::CreateTimer ("TestSegChartNV");
|
|
|
|
int nseg = NOSegments();
|
|
|
|
Point<2> p2d1 = chart->Project2d (p1);
|
|
Point<2> p2d2 = chart->Project2d (p2);
|
|
|
|
Box<2> box2d;
|
|
box2d.Set (p2d1);
|
|
box2d.Add (p2d2);
|
|
|
|
Line2d l1 (p2d1, p2d2);
|
|
|
|
double eps = 1e-3;
|
|
bool ok = true;
|
|
|
|
/*
|
|
static long int cnt = 0;
|
|
static long int totnseg = 0;
|
|
totnseg += nseg;
|
|
cnt++;
|
|
if ( (cnt % 100000) == 0)
|
|
cout << "avg nseg = " << double(totnseg)/cnt << endl;
|
|
*/
|
|
|
|
if (searchtree)
|
|
{
|
|
// NgProfiler::RegionTimer reg(timerquick);
|
|
|
|
NgArrayMem<INDEX_2,100> pis;
|
|
searchtree -> GetIntersecting (box2d.PMin(), box2d.PMax(), pis);
|
|
|
|
for (auto i2 : pis)
|
|
{
|
|
// const STLBoundarySeg & seg = GetSegment(j);
|
|
const STLBoundarySeg & seg = boundary_ht[i2];
|
|
|
|
if (seg.IsSmoothEdge()) continue;
|
|
if (!box2d.Intersect (seg.BoundingBox())) continue;
|
|
|
|
const Point<2> & sp1 = seg.P2D1();
|
|
const Point<2> & sp2 = seg.P2D2();
|
|
|
|
Line2d l2 (sp1, sp2);
|
|
double lam1, lam2;
|
|
|
|
int err = CrossPointBarycentric (l1, l2, lam1, lam2);
|
|
|
|
if (!err && lam1 > eps && lam1 < 1-eps &&
|
|
lam2 > eps && lam2 < 1-eps)
|
|
{
|
|
ok = false;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
else
|
|
{
|
|
// NgProfiler::RegionTimer reg(timer);
|
|
for (int j = 1; j <= nseg; j++)
|
|
{
|
|
const STLBoundarySeg & seg = GetSegment(j);
|
|
|
|
if (seg.IsSmoothEdge()) continue;
|
|
if (!box2d.Intersect (seg.BoundingBox())) continue;
|
|
|
|
const Point<2> & sp1 = seg.P2D1();
|
|
const Point<2> & sp2 = seg.P2D2();
|
|
|
|
Line2d l2 (sp1, sp2);
|
|
double lam1, lam2;
|
|
|
|
int err = CrossPointBarycentric (l1, l2, lam1, lam2);
|
|
|
|
if (!err && lam1 > eps && lam1 < 1-eps &&
|
|
lam2 > eps && lam2 < 1-eps)
|
|
{
|
|
ok = false;
|
|
break;
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
return ok;
|
|
}
|
|
|
|
|
|
|
|
STLDoctorParams :: STLDoctorParams()
|
|
{
|
|
drawmeshededges = 1;
|
|
geom_tol_fact = 1E-6;
|
|
longlinefact = 0;
|
|
showexcluded = 1;
|
|
|
|
selectmode = 0;
|
|
edgeselectmode = 0;
|
|
useexternaledges = 0;
|
|
showfaces = 0;
|
|
showtouchedtrigchart = 1;
|
|
showedgecornerpoints = 1;
|
|
conecheck = 1;
|
|
spiralcheck = 1;
|
|
selecttrig = 0;
|
|
nodeofseltrig = 1;
|
|
selectwithmouse = 1;
|
|
showmarkedtrigs = 1;
|
|
dirtytrigfact = 0.001;
|
|
smoothangle = 90;
|
|
smoothnormalsweight = 0.2;
|
|
vicinity = 0;
|
|
showvicinity = 0;
|
|
}
|
|
|
|
|
|
|
|
STLDoctorParams stldoctor;
|
|
|
|
void STLDoctorParams :: Print (ostream & ost) const
|
|
{
|
|
ost << "STL doctor parameters:" << endl
|
|
<< "selecttrig = " << selecttrig << endl
|
|
<< "selectlocalpoint = " << nodeofseltrig << endl
|
|
<< "selectwithmouse = " << selectwithmouse << endl
|
|
<< "showmarkedtrigs = " << showmarkedtrigs << endl
|
|
<< "dirtytrigfact = " << dirtytrigfact << endl
|
|
<< "smoothangle = " << smoothangle << endl;
|
|
}
|
|
|
|
|
|
STLParameters :: STLParameters()
|
|
{
|
|
yangle = 30;
|
|
contyangle = 20;
|
|
edgecornerangle = 60;
|
|
chartangle = 15;
|
|
outerchartangle = 70;
|
|
|
|
usesearchtree = 0;
|
|
atlasminh = 1E-4;
|
|
resthsurfcurvfac = 2;
|
|
resthsurfcurvenable = 0;
|
|
resthatlasfac = 2;
|
|
resthatlasenable = 1;
|
|
resthchartdistfac = 1.2;
|
|
resthchartdistenable = 1;
|
|
resthlinelengthfac = 0.5;
|
|
resthlinelengthenable = 1;
|
|
resthcloseedgefac = 1;
|
|
resthcloseedgeenable = 1;
|
|
resthedgeanglefac = 1;
|
|
resthedgeangleenable = 0;
|
|
resthsurfmeshcurvfac = 1;
|
|
resthsurfmeshcurvenable = 0;
|
|
recalc_h_opt = 1;
|
|
}
|
|
|
|
void STLParameters :: Print (ostream & ost) const
|
|
{
|
|
ost << "STL parameters:" << endl
|
|
<< "yellow angle = " << yangle << endl
|
|
<< "continued yellow angle = " << contyangle << endl
|
|
<< "edgecornerangle = " << edgecornerangle << endl
|
|
<< "chartangle = " << chartangle << endl
|
|
<< "outerchartangle = " << outerchartangle << endl
|
|
<< "restrict h due to ..., enable and safety factor: " << endl
|
|
<< "surface curvature: " << resthsurfcurvenable
|
|
<< ", fac = " << resthsurfcurvfac << endl
|
|
<< "atlas surface curvature: " << resthatlasenable
|
|
<< ", fac = " << resthatlasfac << endl
|
|
<< "chart distance: " << resthchartdistenable
|
|
<< ", fac = " << resthchartdistfac << endl
|
|
<< "line length: " << resthlinelengthenable
|
|
<< ", fac = " << resthlinelengthfac << endl
|
|
<< "close edges: " << resthcloseedgeenable
|
|
<< ", fac = " << resthcloseedgefac << endl
|
|
<< "edge angle: " << resthedgeangleenable
|
|
<< ", fac = " << resthedgeanglefac << endl;
|
|
}
|
|
|
|
|
|
STLParameters stlparam;
|
|
|
|
|
|
}
|