FXSphered.h

/********************************************************************************
*                                                                               *
*           D o u b l e - P r e c i s i o n    S p h e r e    C l a s s         *
*                                                                               *
*********************************************************************************
* Copyright (C) 2004,2024 by Jeroen van der Zijp.   All Rights Reserved.        *
*********************************************************************************
* This library is free software; you can redistribute it and/or modify          *
* it under the terms of the GNU Lesser General Public License as published by   *
* the Free Software Foundation; either version 3 of the License, or             *
* (at your option) any later version.                                           *
*                                                                               *
* This library is distributed in the hope that it will be useful,               *
* but WITHOUT ANY WARRANTY; without even the implied warranty of                *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the                 *
* GNU Lesser General Public License for more details.                           *
*                                                                               *
* You should have received a copy of the GNU Lesser General Public License      *
* along with this program.  If not, see <http://www.gnu.org/licenses/>          *
********************************************************************************/
#ifndef FXSPHERED_H
#define FXSPHERED_H

namespace FX {


class FXRanged;
class FXMat4d;


class FXAPI FXSphered {
public:
  FXVec3d  center;
  FXdouble radius;
public:

  FXSphered(){}

  FXSphered(const FXSphered& sphere):center(sphere.center),radius(sphere.radius){}

  FXSphered(const FXVec3d& cen,FXdouble rad=0.0):center(cen),radius(rad){}

  FXSphered(FXdouble x,FXdouble y,FXdouble z,FXdouble rad=0.0):center(x,y,z),radius(rad){}

  FXSphered(const FXRanged& bounds);

  FXSphered& operator=(const FXSphered& sphere){ center=sphere.center; radius=sphere.radius; return *this; }

  FXSphered& set(const FXSphered& sphere){ center=sphere.center; radius=sphere.radius; return *this; }

  FXSphered& set(const FXVec3d& cen,FXdouble rad=0.0){ center=cen; radius=rad; return *this; }

  FXSphered& set(FXdouble x,FXdouble y,FXdouble z,FXdouble rad=0.0){ center.set(x,y,z); radius=rad; return *this; }

  FXbool operator==(const FXSphered& s) const { return center==s.center && radius==s.radius;}
  FXbool operator!=(const FXSphered& s) const { return center!=s.center || radius!=s.radius;}

  FXdouble diameter() const { return radius*2.0; }

  FXdouble area() const { return radius*radius*12.5663706143591729538505735331; }

  FXdouble volume() const { return radius*radius*radius*4.18879020478639098461685784437; }

  FXbool empty() const { return radius<0.0; }

  FXbool contains(FXdouble x,FXdouble y,FXdouble z) const;

  FXbool contains(const FXVec3d& p) const;

  FXbool contains(const FXRanged& box) const;

  FXbool contains(const FXSphered& sphere) const;

  FXSphered& include(FXdouble x,FXdouble y,FXdouble z);

  FXSphered& include(const FXVec3d& p);

  FXSphered& includeInRadius(FXdouble x,FXdouble y,FXdouble z);

  FXSphered& includeInRadius(const FXVec3d& p);

  FXSphered& include(const FXRanged& box);

  FXSphered& includeInRadius(const FXRanged& box);

  FXSphered& include(const FXSphered& sphere);

  FXSphered& includeInRadius(const FXSphered& sphere);

  FXint intersect(const FXVec4d& plane) const;

  FXbool intersect(const FXVec3d& u,const FXVec3d& v) const;

  FXbool intersect(const FXVec3d& pos,const FXVec3d& dir,FXdouble hit[]) const;

  FXSphered transform(const FXMat4d& mat) const;

 ~FXSphered(){}
  };


extern FXAPI FXbool overlap(const FXRanged& a,const FXSphered& b);

extern FXAPI FXbool overlap(const FXSphered& a,const FXRanged& b);

extern FXAPI FXbool overlap(const FXSphered& a,const FXSphered& b);

extern FXAPI FXStream& operator<<(FXStream& store,const FXSphered& sphere);

extern FXAPI FXStream& operator>>(FXStream& store,FXSphered& sphere);

}

#endif