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cone bug fix

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This commit is contained in:
Joachim Schoeberl 2010-03-16 22:16:47 +00:00
parent 0bf7d1228e
commit fc095693d9
2 changed files with 12 additions and 7 deletions
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18
libsrc/csg/algprim.cpp
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@ -1338,6 +1338,7 @@ namespace netgen
// R(z(P)) = t1vec * P + t1 = rb * z + ra * (1-z)
// r(P)^2 =||P-a||^2 - ||a-b||^2 z^2k
cosphi = vabl / sqrt (vabl*vabl+sqr(ra-rb));
t0vec = vab;
t0vec /= (vabl * vabl);
@ -1380,21 +1381,24 @@ namespace netgen
INSOLID_TYPE Cone :: BoxInSolid (const BoxSphere<3> & box) const
{
double rp, dist;
Vec<3> cv(box.Center());
rp = cv * t1vec + t1;
dist = sqrt (CalcFunctionValue(box.Center()) *max2(ra,rb) + rp * rp) - rp;
double rzp = cv * t1vec + t1;
double dist = sqrt (CalcFunctionValue(box.Center()) *max2(ra,rb) + rzp * rzp) - rzp;
if (dist - box.Diam() > 0) return IS_OUTSIDE;
if (dist + box.Diam() < 0) return IS_INSIDE;
return DOES_INTERSECT;
dist *= cosphi;
INSOLID_TYPE res = DOES_INTERSECT;
if (dist - box.Diam() > 0) res = IS_OUTSIDE;
if (dist + box.Diam() < 0) res = IS_INSIDE;
return res;
}
double Cone :: HesseNorm () const
{
// cout << "2/minr = " << 2/minr << ", cxx .. = " << cxx << ", " << cyy << ", " << czz << endl;
return 2 / minr;
}

1
libsrc/csg/algprim.hpp
View File

@ -326,6 +326,7 @@ namespace netgen
Vec<3> vab, t0vec, t1vec;
///
double vabl, t0, t1;
double cosphi;
public:
///
Cone (const Point<3> & aa, const Point<3> & ab, double ara, double arb);