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C:/temp/src/j2k/Beta/Geometry/Linear/Square.cpp

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// Implementation of class JSquare
#ifndef __J2K__JSquare_CPP__
#define __J2K__JSquare_CPP__

#include <j2k/Fred/Geometry/JSquare.hpp>
#include <j2k/Fred/MathCst.hpp>

// Constructor for class JSquare
JSquare::JSquare()
  :  p( 0.0, 0.0 ), length( 0.0 ), area_cache( 0.0 ) { }

JSquare::JSquare( double X )
  :  p( X, 0.0 ), length( 0.0 ), area_cache( 0.0 ) { }

JSquare::JSquare( double X, double Y )
  :  p( X, Y ), length( 0.0 ), area_cache( 0.0 ) { }

JSquare::JSquare( double X, double Y, double)
  :  p( X, Y ), length( Length ), area_cache( -1.0 ) { check(); }

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

////////////////////////////////////////////////////////////////////////////
///  JSquare related functions.                                           ///
////////////////////////////////////////////////////////////////////////////

// Set length
inline void JSquare::setLength( double Length ) {
  length = Length;
  check();
}

// Get length
inline double JSquare::getLength() const {
  return length;
}

// Set the x and y coordinates
inline JSquare&  JSquare::setSquare( double X, double Y, double Length )
{
   p.setPoint( X, Y );
   length = Length;
   check();
   return *this;
}

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

inline void JSquare::check() {
  if ( length <= 0 ) {
    length = 0;
  }
}

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

// Set coordinates (l,t)
inline JSquare&  JSquare::setPolar( double R, double Theta ) {
   p.setPolar( R, Theta );
   return *this;
}

inline JSquare&  JSquare::setX( double X ) {
   p.setX( X );
   return *this;
}

inline JSquare&  JSquare::setY( double Y ) {
   p.setY( Y );
   return *this;
}

inline JSquare&  JSquare::setR( double R ) {
   p.setR( R );
   return *this;
}

inline JSquare&  JSquare::setAngle( double Theta ) {
   p.setAngle( Theta );
   return *this;
}

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

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

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

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

#endif

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