netgen/libsrc/csg/curve2d.hpp
Joachim Schoeberl 310cb00b13 autotools
2009-01-12 23:40:13 +00:00

60 lines
1.2 KiB
C++

#ifndef FILE_CURVE2D
#define FILE_CURVE2D
/**************************************************************************/
/* File: curve2d.hh */
/* Author: Joachim Schoeberl */
/* Date: 24. Jul. 96 */
/**************************************************************************/
/*
2D Curve repesentation
*/
///
class Curve2d : public Manifold
{
public:
///
virtual void Project (Point<2> & p) const = 0;
///
virtual void NormalVector (const Point<2> & p, Vec<2> & n) const = 0;
};
///
class CircleCurve2d : public Curve2d
{
///
Point<2> center;
///
double rad;
public:
///
CircleCurve2d (const Point<2> & acenter, double arad);
///
virtual void Project (Point<2> & p) const;
///
virtual void NormalVector (const Point<2> & p, Vec<2> & n) const;
};
///
class QuadraticCurve2d : public Curve2d
{
///
double cxx, cyy, cxy, cx, cy, c;
public:
///
QuadraticCurve2d ();
///
void Read (istream & ist);
///
virtual void Project (Point<2> & p) const;
///
virtual void NormalVector (const Point<2> & p, Vec<2> & n) const;
};
#endif