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// Copyright 2006-2007 Nanorex, Inc. See LICENSE file for details.
/*
Name: couple.h
Author: Oleksandr Shevchenko
Description: coordinate 2D point management class
*/
#if !defined(COUPLE_INCLUDED)
#define COUPLE_INCLUDED
#include <math.h>
#include "triple.h"
class Couple
{
public:
//------------------------------------------------------------------------
// Constructor
//
// empty Couple
//
inline Couple();
//------------------------------------------------------------------------
// Constructor
//
// Couple (x,y) constructor
//
inline Couple(
double ax,
double ay);
//------------------------------------------------------------------------
// Constructor
//
// Couple (x,y) constructor
//
inline Couple(
double coords[2]);
//------------------------------------------------------------------------
// Constructor
//
// vector a->b constructor
//
inline Couple(
const Couple &a,
const Couple &b);
//------------------------------------------------------------------------
// Constructor
//
// Couple from point constructor
//
Couple(
int i,
double x,
double y,
double z);
//------------------------------------------------------------------------
// Len()
//
// vector length
//
double Len() const;
//------------------------------------------------------------------------
// Len2()
//
// square of vector length
//
double Len2() const;
//------------------------------------------------------------------------
// Normalize()
//
// normalize vector to unit length
//
Couple & Normalize();
//------------------------------------------------------------------------
// Normalize()
//
// normalizes vector to unit length
//
Couple & Normalize(
double &length);
//------------------------------------------------------------------------
// operator -()
//
// overloaded negation operator
//
inline Couple operator -() const;
//------------------------------------------------------------------------
// operator *=()
//
// overloaded operator *= gives multiplication to of Couple to number
//
inline Couple & operator *=(
double s);
//------------------------------------------------------------------------
// operator /=()
//
// overloaded /=(double) operator
//
inline Couple & operator /=(
double s);
//------------------------------------------------------------------------
// operator +=()
//
// overloaded += operator
//
inline Couple & operator +=(
const Couple &a);
//------------------------------------------------------------------------
// operator -=()
//
// overloaded -= operator
//
inline Couple & operator -=(
const Couple &a);
//------------------------------------------------------------------------
// U()
//
// get x coordinate
//
inline double U() const;
//------------------------------------------------------------------------
// U()
//
// set x coordinate
//
inline double & U();
//------------------------------------------------------------------------
// V()
//
// get y coordinate
//
inline double V() const;
//------------------------------------------------------------------------
// V()
//
// set y coordinate
//
inline double & V();
//------------------------------------------------------------------------
// X()
//
// get x coordinate
//
inline double X() const;
//------------------------------------------------------------------------
// X()
//
// set x coordinate
//
inline double & X();
//------------------------------------------------------------------------
// Y()
//
// get y coordinate
//
inline double Y() const;
//------------------------------------------------------------------------
// Y()
//
// set y coordinate
//
inline double & Y();
private:
//------------------------------------------------------------------------
// mX
double mX; // coordinate x
//------------------------------------------------------------------------
// mY
double mY; // coordinate y
};
//----------------------------------------------------------------------------
// operator -()
//
// overloaded binary minus
//
inline Couple operator -(
const Couple &a,
const Couple &b);
//----------------------------------------------------------------------------
// operator %()
//
// dot product of two vectors C = (A*B)
//
inline double operator %(
const Couple &a,
const Couple &b);
//----------------------------------------------------------------------------
// operator *()
//
// vector*number product
//
inline Couple operator *(
const Couple &a,
double s);
//----------------------------------------------------------------------------
// operator *()
//
// number*vector product
//
inline Couple operator *(
double s,
const Couple &b);
//----------------------------------------------------------------------------
// operator /()
//
// overloaded operator / (double)
//
inline Couple operator /(
const Couple &a,
double s);
//----------------------------------------------------------------------------
// operator +()
//
// overloaded binary plus
//
inline Couple operator +(
const Couple &a,
const Couple &b);
//----------------------------------------------------------------------------
// operator -()
inline Couple operator -(
const Couple &a,
const Couple &b)
{
return Couple(a.X()-b.X(),a.Y()-b.Y());
}
//----------------------------------------------------------------------------
// operator %()
inline double operator %(
const Couple &a,
const Couple &b)
{
return (a.X()*b.X() + a.Y()*b.Y());
}
//----------------------------------------------------------------------------
// operator *()
inline Couple operator *(
const Couple &a,
double s)
{
return (Couple(a.X()*s,a.Y()*s));
}
//----------------------------------------------------------------------------
// operator *()
inline Couple operator *(
double s,
const Couple &b)
{
return (Couple(s*b.X(),s*b.Y()));
}
//----------------------------------------------------------------------------
// operator /()
inline Couple operator /(
const Couple &a,
double s)
{
return (Couple(a.X()/s,a.Y()/s));
}
//----------------------------------------------------------------------------
// operator +()
inline Couple operator +(
const Couple &a,
const Couple &b)
{
return (Couple(a.X()+b.X(),a.Y()+b.Y()));
}
//----------------------------------------------------------------------------
// Constructor
inline Couple::Couple():
// Private data initialization
mX( // coordinate x
0.0),
mY( // coordinate y
0.0)
{
}
//----------------------------------------------------------------------------
// Constructor
inline Couple::Couple(
double ax,
double ay):
// Private data initialization
mX( // coordinate x
ax),
mY( // coordinate y
ay)
{
}
//----------------------------------------------------------------------------
// Constructor
inline Couple::Couple(
double coords[2])
{
X() = coords[0];
Y() = coords[1];
}
//----------------------------------------------------------------------------
// Constructor
inline Couple::Couple(
const Couple &a,
const Couple &b)
{
X() = b.X() - a.X();
Y() = b.Y() - a.Y();
}
//----------------------------------------------------------------------------
// operator -()
inline Couple Couple::operator -() const
{
return Couple(-X(),-Y());
}
//----------------------------------------------------------------------------
// operator *=()
inline Couple & Couple::operator *=(
double s)
{
X() *= s;
Y() *= s;
return *this;
}
//----------------------------------------------------------------------------
// operator /=()
inline Couple & Couple::operator /=(
double s)
{
X() /= s;
Y() /= s;
return *this;
}
//----------------------------------------------------------------------------
// operator +=()
inline Couple & Couple::operator +=(
const Couple &a)
{
X() += a.X();
Y() += a.Y();
return *this;
}
//----------------------------------------------------------------------------
// operator -=()
inline Couple & Couple::operator -=(
const Couple &a)
{
X() -= a.X();
Y() -= a.Y();
return *this;
}
//----------------------------------------------------------------------------
// U()
inline double Couple::U() const
{
return mX;
}
//----------------------------------------------------------------------------
// U()
inline double & Couple::U()
{
return mX;
}
//----------------------------------------------------------------------------
// V()
inline double Couple::V() const
{
return mY;
}
//----------------------------------------------------------------------------
// V()
inline double & Couple::V()
{
return mY;
}
//----------------------------------------------------------------------------
// X()
inline double Couple::X() const
{
return mX;
}
//----------------------------------------------------------------------------
// X()
inline double & Couple::X()
{
return mX;
}
//----------------------------------------------------------------------------
// Y()
inline double Couple::Y() const
{
return mY;
}
//----------------------------------------------------------------------------
// Y()
inline double & Couple::Y()
{
return mY;
}
#endif // COUPLE_INCLUDED
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