netgen/libsrc/csg/polyhedra.hpp

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#ifndef FILE_POLYHEDRA
#define FILE_POLYHEDRA
/**************************************************************************/
/* File: polyhedra.hh */
/* Author: Joachim Schoeberl */
/* Date: 19. Mar. 2000 */
/**************************************************************************/
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namespace netgen
{
/*
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Polyhedral primitive
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*/
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class Polyhedra : public Primitive
{
class Face {
public:
int pnums[3];
int planenr;
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int inputnr;
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Box<3> bbox;
// Point<3> center;
Vec<3> v1, v2; // edges
Vec<3> w1, w2; // pseudo-inverse
Vec<3> n; // normal to face
Vec<3> nn; // normed normal
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Face () { ; }
Face (int pi1, int pi2, int pi3,
const Array<Point<3> > & points,
int ainputnr);
};
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Array<Point<3> > points;
Array<Face> faces;
Array<Plane*> planes;
Box<3> poly_bbox;
double eps_base1;
public:
Polyhedra ();
virtual ~Polyhedra ();
static Primitive * CreateDefault ();
virtual INSOLID_TYPE BoxInSolid (const BoxSphere<3> & box) const;
virtual INSOLID_TYPE PointInSolid (const Point<3> & p,
double eps) const;
virtual INSOLID_TYPE VecInSolid (const Point<3> & p,
const Vec<3> & v,
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double eps) const;
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// checks if lim s->0 lim t->0 p + t(v1 + s v2) in solid
virtual INSOLID_TYPE VecInSolid2 (const Point<3> & p,
const Vec<3> & v1,
const Vec<3> & v2,
double eps) const;
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virtual void GetTangentialSurfaceIndices (const Point<3> & p,
Array<int> & surfind, double eps) const;
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virtual void GetTangentialVecSurfaceIndices2 (const Point<3> & p, const Vec<3> & v1, const Vec<3> & v2,
Array<int> & surfind, double eps) const;
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virtual void CalcSpecialPoints (Array<Point<3> > & pts) const;
virtual void AnalyzeSpecialPoint (const Point<3> & pt,
Array<Point<3> > & specpts) const;
virtual Vec<3> SpecialPointTangentialVector (const Point<3> & p, int s1, int s2) const;
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virtual int GetNSurfaces() const
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{ return planes.Size(); }
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virtual Surface & GetSurface (int i)
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{ return *planes[i]; }
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virtual const Surface & GetSurface (int i) const
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{ return *planes[i]; }
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virtual void GetPrimitiveData (const char *& classname, Array<double> & coeffs) const;
virtual void SetPrimitiveData (Array<double> & coeffs);
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virtual void Reduce (const BoxSphere<3> & box);
virtual void UnReduce ();
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int AddPoint (const Point<3> & p);
int AddFace (int pi1, int pi2, int pi3, int inputnum);
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void GetPolySurfs(Array < Array<int> * > & polysurfs);
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protected:
int FaceBoxIntersection (int fnr, const BoxSphere<3> & box) const;
// void CalcData();
};
}
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#endif