mirror of
https://github.com/NGSolve/netgen.git
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173 lines
4.8 KiB
C++
173 lines
4.8 KiB
C++
#ifndef _EXTRUSION_HPP
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#define _EXTRUSION_HPP
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namespace netgen
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{
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class Extrusion;
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class ExtrusionFace : public Surface
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{
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private:
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const SplineSeg<2> * profile;
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const SplineGeometry<3> * path;
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Vec<3> glob_z_direction;
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bool deletable;
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NgArray< const SplineSeg3<3> * > spline3_path;
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NgArray< const LineSeg<3> * > line_path;
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mutable NgArray < Vec<3> > x_dir, y_dir, z_dir, loc_z_dir;
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mutable NgArray < Point<3> > p0;
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mutable Vec<3> profile_tangent;
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mutable double profile_par;
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mutable Vector profile_spline_coeff;
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mutable int latest_seg;
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mutable double latest_t;
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mutable Point<2> latest_point2d;
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mutable Point<3> latest_point3d;
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private:
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void Orthogonalize(const Vec<3> & v1, Vec<3> & v2) const;
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void Init(void);
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public:
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double CalcProj(const Point<3> & point3d, Point<2> & point2d,
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int seg) const;
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void CalcProj(const Point<3> & point3d, Point<2> & point2d,
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int & seg, double & t) const;
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public:
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ExtrusionFace(const SplineSeg<2> * profile_in,
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const SplineGeometry<3> * path_in,
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const Vec<3> & z_direction);
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ExtrusionFace(const NgArray<double> & raw_data);
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// default constructor for archive
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ExtrusionFace() {}
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~ExtrusionFace();
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virtual void DoArchive(Archive& ar)
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{
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Surface::DoArchive(ar);
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ar & profile & path & glob_z_direction & deletable & spline3_path & line_path &
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x_dir & y_dir & z_dir & loc_z_dir & p0 & profile_tangent & profile_par &
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profile_spline_coeff & latest_seg & latest_t & latest_point2d & latest_point3d;
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}
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virtual int IsIdentic (const Surface & s2, int & inv, double eps) const;
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virtual double CalcFunctionValue (const Point<3> & point) const;
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virtual void CalcGradient (const Point<3> & point, Vec<3> & grad) const;
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virtual void CalcHesse (const Point<3> & point, Mat<3> & hesse) const;
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virtual double HesseNorm () const;
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virtual double MaxCurvature () const;
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//virtual double MaxCurvatureLoc (const Point<3> & /* c */ ,
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// double /* rad */) const;
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virtual void Project (Point<3> & p) const;
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virtual Point<3> GetSurfacePoint () const;
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virtual void Print (ostream & str) const;
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virtual void GetTriangleApproximation (TriangleApproximation & tas,
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const Box<3> & boundingbox,
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double facets) const;
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const SplineGeometry<3> & GetPath(void) const {return *path;}
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const SplineSeg<2> & GetProfile(void) const {return *profile;}
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bool BoxIntersectsFace(const Box<3> & box) const;
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void LineIntersections ( const Point<3> & p,
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const Vec<3> & v,
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const double eps,
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int & before,
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int & after,
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bool & intersecting ) const;
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INSOLID_TYPE VecInFace ( const Point<3> & p,
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const Vec<3> & v,
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const double eps ) const;
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const Vec<3> & GetYDir ( void ) const {return y_dir[latest_seg];}
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const Vec<3> & GetProfileTangent (void) const {return profile_tangent;}
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double GetProfilePar(void) const {return profile_par;}
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void GetRawData(NgArray<double> & data) const;
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void CalcLocalCoordinates (int seg, double t,
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Vec<3> & ex, Vec<3> & ey, Vec<3> & ez) const;
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void CalcLocalCoordinatesDeriv (int seg, double t,
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Vec<3> & ex, Vec<3> & ey, Vec<3> & ez,
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Vec<3> & dex, Vec<3> & dey, Vec<3> & dez) const;
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};
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class Extrusion : public Primitive
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{
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private:
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const SplineGeometry<3>* path;
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const SplineGeometry<2>* profile; // closed, clockwise oriented curve
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Vec<3> z_direction;
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NgArray<ExtrusionFace*> faces;
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mutable int latestfacenum;
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public:
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Extrusion(const SplineGeometry<3> & path_in,
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const SplineGeometry<2> & profile_in,
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const Vec<3> & z_dir);
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// default constructor for archive
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Extrusion() {}
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~Extrusion();
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virtual void DoArchive(Archive& ar)
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{
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Primitive::DoArchive(ar);
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ar & path & profile & z_direction & faces & latestfacenum;
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}
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virtual INSOLID_TYPE BoxInSolid (const BoxSphere<3> & box) const;
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virtual INSOLID_TYPE PointInSolid (const Point<3> & p,
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double eps) const;
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INSOLID_TYPE PointInSolid (const Point<3> & p,
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double eps,
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NgArray<int> * const facenums) const;
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virtual INSOLID_TYPE VecInSolid (const Point<3> & p,
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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
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virtual INSOLID_TYPE VecInSolid2 (const Point<3> & p,
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const Vec<3> & v1,
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const Vec<3> & v2,
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double eps) const;
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virtual int GetNSurfaces() const;
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virtual Surface & GetSurface (int i = 0);
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virtual const Surface & GetSurface (int i = 0) const;
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virtual void Reduce (const BoxSphere<3> & box);
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virtual void UnReduce ();
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};
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}
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#endif //_EXTRUSION_HPP
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