netgen/libsrc/csg/extrusion.hpp
2019-07-09 10:39:16 +02:00

173 lines
4.8 KiB
C++

#ifndef _EXTRUSION_HPP
#define _EXTRUSION_HPP
namespace netgen
{
class Extrusion;
class ExtrusionFace : public Surface
{
private:
const SplineSeg<2> * profile;
const SplineGeometry<3> * path;
Vec<3> glob_z_direction;
bool deletable;
NgArray< const SplineSeg3<3> * > spline3_path;
NgArray< const LineSeg<3> * > line_path;
mutable NgArray < Vec<3> > x_dir, y_dir, z_dir, loc_z_dir;
mutable NgArray < Point<3> > p0;
mutable Vec<3> profile_tangent;
mutable double profile_par;
mutable Vector profile_spline_coeff;
mutable int latest_seg;
mutable double latest_t;
mutable Point<2> latest_point2d;
mutable Point<3> latest_point3d;
private:
void Orthogonalize(const Vec<3> & v1, Vec<3> & v2) const;
void Init(void);
public:
double CalcProj(const Point<3> & point3d, Point<2> & point2d,
int seg) const;
void CalcProj(const Point<3> & point3d, Point<2> & point2d,
int & seg, double & t) const;
public:
ExtrusionFace(const SplineSeg<2> * profile_in,
const SplineGeometry<3> * path_in,
const Vec<3> & z_direction);
ExtrusionFace(const NgArray<double> & raw_data);
// default constructor for archive
ExtrusionFace() {}
~ExtrusionFace();
virtual void DoArchive(Archive& ar)
{
Surface::DoArchive(ar);
ar & profile & path & glob_z_direction & deletable & spline3_path & line_path &
x_dir & y_dir & z_dir & loc_z_dir & p0 & profile_tangent & profile_par &
profile_spline_coeff & latest_seg & latest_t & latest_point2d & latest_point3d;
}
virtual int IsIdentic (const Surface & s2, int & inv, double eps) const;
virtual double CalcFunctionValue (const Point<3> & point) const;
virtual void CalcGradient (const Point<3> & point, Vec<3> & grad) const;
virtual void CalcHesse (const Point<3> & point, Mat<3> & hesse) const;
virtual double HesseNorm () const;
virtual double MaxCurvature () const;
//virtual double MaxCurvatureLoc (const Point<3> & /* c */ ,
// double /* rad */) const;
virtual void Project (Point<3> & p) const;
virtual Point<3> GetSurfacePoint () const;
virtual void Print (ostream & str) const;
virtual void GetTriangleApproximation (TriangleApproximation & tas,
const Box<3> & boundingbox,
double facets) const;
const SplineGeometry<3> & GetPath(void) const {return *path;}
const SplineSeg<2> & GetProfile(void) const {return *profile;}
bool BoxIntersectsFace(const Box<3> & box) const;
void LineIntersections ( const Point<3> & p,
const Vec<3> & v,
const double eps,
int & before,
int & after,
bool & intersecting ) const;
INSOLID_TYPE VecInFace ( const Point<3> & p,
const Vec<3> & v,
const double eps ) const;
const Vec<3> & GetYDir ( void ) const {return y_dir[latest_seg];}
const Vec<3> & GetProfileTangent (void) const {return profile_tangent;}
double GetProfilePar(void) const {return profile_par;}
void GetRawData(NgArray<double> & data) const;
void CalcLocalCoordinates (int seg, double t,
Vec<3> & ex, Vec<3> & ey, Vec<3> & ez) const;
void CalcLocalCoordinatesDeriv (int seg, double t,
Vec<3> & ex, Vec<3> & ey, Vec<3> & ez,
Vec<3> & dex, Vec<3> & dey, Vec<3> & dez) const;
};
class Extrusion : public Primitive
{
private:
const SplineGeometry<3>* path;
const SplineGeometry<2>* profile; // closed, clockwise oriented curve
Vec<3> z_direction;
NgArray<ExtrusionFace*> faces;
mutable int latestfacenum;
public:
Extrusion(const SplineGeometry<3> & path_in,
const SplineGeometry<2> & profile_in,
const Vec<3> & z_dir);
// default constructor for archive
Extrusion() {}
~Extrusion();
virtual void DoArchive(Archive& ar)
{
Primitive::DoArchive(ar);
ar & path & profile & z_direction & faces & latestfacenum;
}
virtual INSOLID_TYPE BoxInSolid (const BoxSphere<3> & box) const;
virtual INSOLID_TYPE PointInSolid (const Point<3> & p,
double eps) const;
INSOLID_TYPE PointInSolid (const Point<3> & p,
double eps,
NgArray<int> * const facenums) const;
virtual INSOLID_TYPE VecInSolid (const Point<3> & p,
const Vec<3> & v,
double eps) const;
// 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;
virtual int GetNSurfaces() const;
virtual Surface & GetSurface (int i = 0);
virtual const Surface & GetSurface (int i = 0) const;
virtual void Reduce (const BoxSphere<3> & box);
virtual void UnReduce ();
};
}
#endif //_EXTRUSION_HPP