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Shape.h

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// $Header: /nfs/slac/g/glast/ground/cvs/geometry/geometry/Shape.h,v 1.2 2000/01/18 00:42:09 burnett Exp $
//

#ifndef GEOMETRY_SHAPE_H
#define GEOMETRY_SHAPE_H

#include "geometry/Point.h"
#include <cfloat> // for FLT_MAX on NT

class Ray;
class Medium;

class Shape : public GeomObject
{
 public:
    virtual double distanceToLeave( const Ray& r, double maxStep  = FLT_MAX )const=0;
    virtual double distanceToEnter( const Ray& r, double maxStep  = FLT_MAX )const=0;

    virtual int inside ( const Point& x ) const=0;

    void printOn(std::ostream&)const;

    const Point& center()const;

    GeomObject& transform(const CoordTransform&);

    virtual Shape& copy()const;

    virtual int getBoundaryIndex(const Point& )const{return -1;}

    virtual int lastBoundaryIndex()const{return -1;}

    virtual double getMaxDimension() const { return FLT_MAX; }

 protected:
    Shape();
    // default constructor accessible to subclasses

 private:
   Shape(const Shape& ){};
    // copy constructor not allowed

  Point _center;
 // central point
};
inline const Point&
Shape::center()const {return _center;}
#endif

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