3dExtent.h

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/*******************************************************************************
** Copyright (c) 1992-2010 VT MAK
** All rights reserved.
*******************************************************************************/

#ifndef _3dExtent_H
#define _3dExtent_H



#include <vlutil/vlMachineTypes.h>
#include "3dPoint.h"
#include <iosfwd>

#ifdef DtUSE_UTILITIES_NAMESPACE
namespace DtUSE_UTILITIES_NAMESPACE
{
#endif

class Dt3dChord;

class DT_DLL_MATRIX Dt3dExtent
{
public:

   Dt3dExtent();

   Dt3dExtent(const Dt3dExtent& orig);

   Dt3dExtent(const double minX, const double maxX,
              const double minY, const double maxY,
              const double minZ, const double maxZ );

   Dt3dExtent(const Dt3dPoint& p0, const Dt3dPoint& p1);

   Dt3dExtent(const Dt3dChord& lineSeg);

   virtual ~Dt3dExtent();

   Dt3dExtent& operator=(const Dt3dExtent& orig);

   virtual bool operator==(const Dt3dExtent& rhs) const;
   virtual bool operator!=(const Dt3dExtent& rhs) const;

//- -------------- access/manipulate size/shape routines -----------------


   double minX() const;
   double minY() const;
   double minZ() const;
   double maxX() const;
   double maxY() const;
   double maxZ() const;

   void setMinX(double x);
   void setMinY(double y);
   void setMinZ(double z);
   void setMaxX(double x);
   void setMaxY(double y);
   void setMaxZ(double z);
   
   virtual const Dt3dPoint center() const;

   virtual void setCenter(const Dt3dPoint& p);

   virtual void setFromCenter(const Dt3dPoint& p,
                              const double& xDist, 
                              const double& yDist, 
                              const double& zDist);



   double xSize() const;
   double ySize() const;
   double zSize() const;

   virtual Dt3dPoint maxPoint() const;

   virtual Dt3dPoint minPoint() const;

   bool empty() const;

   virtual void expandToInclude(const Dt3dExtent& otherExtent);

   virtual void expandToInclude(const Dt3dPoint& point);

   virtual void expandToInclude(const Dt3dChord& chord);
 

//- --------------- intersection tests ---------------------------   
//- ---  could be potentially moved to an DtExtentIntersector class ---

   virtual bool contains(const Dt3dExtent& otherExtent) const;

   virtual bool contains(const Dt3dPoint& point) const;
   
   virtual bool contains(const Dt3dChord& chord) const;
  
   bool intersects(const Dt3dExtent& otherExtent) const;
 
   bool doesNotIntersect(const Dt3dExtent& otherExtent) const;
 
   bool intersects(const Dt3dChord& chord) const;

protected:

   bool intersectsLineOfChord(const Dt3dChord& chord, 
      double& distInChordLengthsFirst, double& distInChordLengthsLast) const;

   bool intersectsSoFar(const double pointVal,
      const double rayVal, const double side0, const double side1, 
      double &firstTime, double &lastTime) const;

//- --------------- end intersection tests ---------------------------   

protected:
   void guaranteeValidConstruction();

protected:
   double myMinX;
   double myMaxX;
   double myMinY;
   double myMaxY;
   double myMinZ;
   double myMaxZ;

public:

   static Dt3dExtent& nullExtent();

};

#define _3dExtent_inl
#include "3dExtent.inl"
#undef _3dExtent_inl

DT_DLL_MATRIX std::ostream& operator<<(std::ostream& os, const Dt3dExtent& extent);
DT_DLL_MATRIX std::istream& operator>>(std::istream& is, Dt3dExtent& extent);

#ifdef DtUSE_UTILITIES_NAMESPACE
}
#endif


#endif