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C:/temp/src/j2k/Beta/Geometry/Linear/PRISM.CPP

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// Implementation of class JPrism
#ifndef __J2K__JPrism_HPP__
#define __J2K__JPrism_HPP__

#include <j2k/Fred/Geometry/JPrism.hpp>

JPrism::JPrism()
  : rc( 0.0, 0.0, 0.0, 0.0 ), height( 0.0 ),
    area_cache( 0.0 ), volume_cache( 0.0 ) { }

JPrism::JPrism( double X )
  : rc( X, 0.0, 0.0, 0.0 ), height( 0.0 ),
    area_cache( 0.0 ), volume_cache( 0.0 ) { }

JPrism::JPrism( double X, double Y )
  : rc( X, Y, 0.0, 0.0 ), height( 0.0 ),
    area_cache( 0.0 ), volume_cache( 0.0 ) { }

JPrism::JPrism( double X, double Y, doubleLength )
  : rc( X, Y, Length, Length ), height( Length ),
    area_cache( -1.0 ), volume_cache( -1.0 ) { }

JPrism::JPrism( double X, double Y,
  double Length, double Width )
  : rc( X, Y, Length, Width ), height( Width ),
    area_cache( -1.0 ), volume_cache( -1.0 ) { }

JPrism::JPrism( double X, double Y,
  double Length, double Width, double Height )
  : rc( X, Y, Length, Width ), height( Height ),
    area_cache( -1.0 ), volume_cache( -1.0 ) { }


////////////////////////////////////////////////////////////////////////////
///  JPrism specific functions.                                        ///
////////////////////////////////////////////////////////////////////////////

// Set height of JPrism
JPrism&  JPrism::setHeight( double Height ) {
  height = Height;
  return *this;
}

// Get height of JPrism
double JPrism::getHeight() const {
  return height;
}

// Calculate surface area of JPrism
double JPrism::area() const { 
  if ( area_cache < 0.0 ) {
    area_cache = 2 * rc.area()
               + 2 * rc.getLength() * height
               + 2 * rc.getWidth() * height;
  }
  return area_cache;
}

// Calculate volume of JPrism
double JPrism::volume() const {
   if ( volume_cache < 0.0 ) {
     volume_cache = rc.area() * height;
   }
   return volume_cache;
}

////////////////////////////////////////////////////////////////////////////
///  JRectangle related functions.                                           ///
////////////////////////////////////////////////////////////////////////////

inline JPrism&  JPrism::setLength( double Length ) {
  rc.setLength();
  return *this;
}

inline JPrism&  JPrism::setWidth( double Width ) {
  rc.setWidth();
  return *this;
}

inline double  JPrism::getLength() {
  return rc.getLength();
}

inline double  JPrism::getWidth() {
  return rc.getWidth();
}

inline JPrism&  JPrism::setJSquare( double X, double Y,
                                 double Length )
{
   p.setPoint( X, Y );
   length = Length;
   return *this;
}
inline JPrism&  JPrism::setJRectangle( double X, double Y,
                   double Length, double Width )
{
   p.setPoint( X, Y );
   length = Length;
   width  = Width;
   return *this;
}

// Calculate area of JRectangle
inline double JPrism::area() const {
  if ( area_cache < 0.0 ) {
    area_cache = Length * Width;
  }
  return area_cache;
}

////////////////////////////////////////////////////////////////////////////
///  Point related functions.                                            ///
////////////////////////////////////////////////////////////////////////////

// Set the x and y coordinates
inline JPrism&  JPrism::setPoint( double X, double Y ) {
   c.setPoint( X, Y );
   return *this;
}

// Set coordinates (r,t)
inline JPrism&  JPrism::setPolar( double R, double Theta ) {
   c.setPolar( R, Theta );
   return *this;
}

inline JPrism&  JPrism::setJSquare( double X, double Y,
                                 double Length )
{
   rc.setJSquare( X, Y, Length );
   return *this;
}

inline JPrism&  JPrism::setJRectangle( double X, double Y,
               double Length, double Width )
{
   rc.setJRectangle( X, Y, Length, Width );
   return *this;
}

inline JPrism&  JPrism::setJCube( double X, double Y,
                               double Length )
{
   rc.setJRectangle( X, Y, Length, Length );
   height = Length;
   return *this;
}

inline JPrism&  JPrism::setJPrism( double X, double Y,
   double Length, double Width, double Height )
{
   rc.setJRectangle( X, Y, Length, Width );
   height = Height;
   return *this;
}


inline JPrism&  JPrism::setX( double X ) {
   rc.setX( X );
   return *this;
}

inline JPrism&  JPrism::setY( double Y ) {
   rc.setY( Y );
   return *this;
}

inline JPrism&  JPrism::setR( double R ) {
   rc.setR( R );
   return *this;
}

inline JPrism&  JPrism::setAngle( double Theta ) {
   rc.setAngle( Theta );
   return *this;
}

// get x coordinate
inline double getX() const {
  return rc.getX();
}

// get y coordinate
inline double getY() const {
  return rc.getY();
}

// get R coordinate
inline double getR() const {
  return rc.getR();
}

// get Angle
inline double getAngle() const {
  return rc.getAngle();
}

#endif

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