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ElmerCSC
GitHub Repository: ElmerCSC/elmerfem
 Path: blob/devel/ElmerGUI/netgen/libsrc/csg/curve2d.hpp
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#ifndef FILE_CURVE2D

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#define FILE_CURVE2D

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/**************************************************************************/

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/* File:   curve2d.hh                                                     */

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/* Author: Joachim Schoeberl                                              */

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/* Date:   24. Jul. 96                                                    */

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/**************************************************************************/

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/*

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  2D Curve repesentation

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*/

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///

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class Curve2d : public Manifold

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  {

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  public:

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  ///

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  virtual void Project (Point<2> & p) const = 0;

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  ///

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  virtual void NormalVector (const Point<2> & p, Vec<2> & n) const = 0;

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  };

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///

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class CircleCurve2d : public Curve2d

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  {

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  ///

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  Point<2> center;

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  ///

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  double rad;

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  public:

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  ///

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  CircleCurve2d (const Point<2> & acenter, double arad);

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  ///

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  virtual void Project (Point<2> & p) const;

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  ///

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  virtual void NormalVector (const Point<2> & p, Vec<2> & n) const;

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  };

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///

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class QuadraticCurve2d : public Curve2d

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{

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  ///

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  double cxx, cyy, cxy, cx, cy, c;

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public:

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  ///

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  QuadraticCurve2d ();

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  ///

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  void Read (istream & ist);

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  ///

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  virtual void Project (Point<2> & p) const;

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  ///

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  virtual void NormalVector (const Point<2> & p, Vec<2> & n) const;

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};

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#endif

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