netgen/libsrc/csg/meshsurf.cpp
2011-07-25 08:40:23 +00:00

212 lines
5.0 KiB
C++

#include <mystdlib.h>
#include <csg.hpp>
#include <meshing.hpp>
namespace netgen
{
/*
Meshing2Surfaces :: Meshing2Surfaces (const Surface & asurface)
: surface(asurface)
{
;
}
*/
Meshing2Surfaces :: Meshing2Surfaces (const Surface & asurf,
const MeshingParameters & mp,
const Box<3> & abb)
: Meshing2(mp, abb), surface(asurf)
{
;
}
void Meshing2Surfaces :: DefineTransformation (const Point3d & p1, const Point3d & p2,
const PointGeomInfo * geominfo1,
const PointGeomInfo * geominfo2)
{
((Surface&)surface).DefineTangentialPlane (p1, p2);
}
void Meshing2Surfaces :: TransformToPlain (const Point3d & locpoint,
const MultiPointGeomInfo & geominfo,
Point2d & planepoint,
double h, int & zone)
{
Point<2> hp;
surface.ToPlane (locpoint, hp, h, zone);
planepoint.X() = hp(0);
planepoint.Y() = hp(1);
}
int Meshing2Surfaces :: TransformFromPlain (Point2d & planepoint,
Point3d & locpoint,
PointGeomInfo & gi,
double h)
{
Point<3> hp;
Point<2> hp2 (planepoint.X(), planepoint.Y());
surface.FromPlane (hp2, hp, h);
locpoint = hp;
gi.trignum = 1;
return 0;
}
double Meshing2Surfaces :: CalcLocalH (const Point3d & p, double gh) const
{
return surface.LocH (p, 3, 1, gh);
/*
double loch = mesh.lochfunc->GetH(p);
if (gh < loch) loch = gh;
return loch;
*/
}
MeshOptimize2dSurfaces :: MeshOptimize2dSurfaces (const CSGeometry & ageometry)
: MeshOptimize2d(), geometry(ageometry)
{
;
}
void MeshOptimize2dSurfaces :: ProjectPoint (INDEX surfind, Point<3> & p) const
{
Point<3> hp = p;
geometry.GetSurface(surfind)->Project (hp);
p = hp;
}
void MeshOptimize2dSurfaces :: ProjectPoint2 (INDEX surfind, INDEX surfind2,
Point<3> & p) const
{
Point<3> hp = p;
ProjectToEdge ( geometry.GetSurface(surfind),
geometry.GetSurface(surfind2), hp);
p = hp;
}
void MeshOptimize2dSurfaces ::
GetNormalVector(INDEX surfind, const Point<3> & p, Vec<3> & n) const
{
Vec<3> hn = n;
geometry.GetSurface(surfind)->CalcGradient (p, hn);
hn.Normalize();
n = hn;
/*
if (geometry.GetSurface(surfind)->Inverse())
n *= -1;
*/
}
RefinementSurfaces :: RefinementSurfaces (const CSGeometry & ageometry)
: Refinement(), geometry(ageometry)
{
if(geometry.GetNSurf() == 0)
*testout << endl
<< "WARNING: Intializing 2D refinement with 0-surface geometry" << endl
<< "==========================================================" << endl
<< endl << endl;
}
RefinementSurfaces :: ~RefinementSurfaces ()
{
;
}
void RefinementSurfaces ::
PointBetween (const Point<3> & p1, const Point<3> & p2, double secpoint,
int surfi,
const PointGeomInfo & gi1,
const PointGeomInfo & gi2,
Point<3> & newp, PointGeomInfo & newgi) const
{
Point<3> hnewp;
hnewp = p1+secpoint*(p2-p1);
if (surfi != -1)
{
geometry.GetSurface (surfi) -> Project (hnewp);
newgi.trignum = 1;
}
newp = hnewp;
}
void RefinementSurfaces ::
PointBetween (const Point<3> & p1, const Point<3> & p2, double secpoint,
int surfi1, int surfi2,
const EdgePointGeomInfo & ap1,
const EdgePointGeomInfo & ap2,
Point<3> & newp, EdgePointGeomInfo & newgi) const
{
Point<3> hnewp = p1+secpoint*(p2-p1);
//(*testout) << "hnewp " << hnewp << " s1 " << surfi1 << " s2 " << surfi2 << endl;
if (surfi1 != -1 && surfi2 != -1 && surfi1 != surfi2)
{
netgen::ProjectToEdge (geometry.GetSurface(surfi1),
geometry.GetSurface(surfi2),
hnewp);
// (*testout) << "Pointbetween, newp = " << hnewp << endl
// << ", err = " << sqrt (sqr (hnewp(0))+ sqr(hnewp(1)) + sqr (hnewp(2))) - 1 << endl;
newgi.edgenr = 1;
//(*testout) << "hnewp (a1) " << hnewp << endl;
}
else if (surfi1 != -1)
{
geometry.GetSurface (surfi1) -> Project (hnewp);
//(*testout) << "hnewp (a2) " << hnewp << endl;
}
newp = hnewp;
};
Vec<3> RefinementSurfaces :: GetTangent (const Point<3> & p, int surfi1, int surfi2,
const EdgePointGeomInfo & ap1) const
{
Vec<3> n1 = geometry.GetSurface (surfi1)->GetNormalVector (p);
Vec<3> n2 = geometry.GetSurface (surfi2)->GetNormalVector (p);
Vec<3> tau = Cross (n1, n2).Normalize();
return tau;
}
Vec<3> RefinementSurfaces :: GetNormal (const Point<3> & p, int surfi1,
const PointGeomInfo & gi) const
{
return geometry.GetSurface (surfi1)->GetNormalVector (p);
}
void RefinementSurfaces :: ProjectToSurface (Point<3> & p, int surfi) const
{
if (surfi != -1)
geometry.GetSurface (surfi) -> Project (p);
};
void RefinementSurfaces :: ProjectToEdge (Point<3> & p, int surfi1, int surfi2, const EdgePointGeomInfo & egi) const
{
netgen::ProjectToEdge (geometry.GetSurface(surfi1),
geometry.GetSurface(surfi2),
p);
}
}