ipoint2.h File Reference

#include "GeomExport.h"
#include "maxheap.h"
#include "strbasic.h"
#include "assert1.h"
#include <iosfwd>
#include <math.h>

Classes
class	IPoint2

Functions
int	Length (const IPoint2 &)
IPoint2	Normalize (const IPoint2 &)
IPoint2	operator* (int, const IPoint2 &)
IPoint2	operator* (const IPoint2 &, int)
IPoint2	operator/ (const IPoint2 &, int)
M_STD_OSTREAM &	operator<< (M_STD_OSTREAM &, const IPoint2 &)
int	MaxComponent (const IPoint2 &p)
int	MinComponent (const IPoint2 &p)

Function Documentation

int Length ( const IPoint2 &  v )

inline

Remarks

Returns the length of the IPoint2, ie:

sqrt(v.x*v.x+v.y*v.y);

                                    {
    double dvx = (double)v.x;
    double dvy = (double)v.y;
    return (int)sqrt(dvx * dvx + dvy * dvy);
    }

IPoint2 Normalize

(

const IPoint2 &

)

Remarks

Returns a unit vector. This is an IPoint2 with each component divided by the point Length().

IPoint2 operator* ( int  f, const IPoint2 &  a  )

inline

Remarks

Returns an IPoint2 multiplied by a scalar.

                                                  {
    return(IPoint2(a.x*f, a.y*f));
    }

IPoint2 operator* ( const IPoint2 &  a, int  f  )

inline

Remarks

Returns an IPoint2 multiplied by a scalar.

                                                  {
    return(IPoint2(a.x*f, a.y*f));
    }

IPoint2 operator/ ( const IPoint2 &  a, int  f  )

inline

Remarks

Returns an IPoint2 whose x and y members are divided by a scalar.

                                                  {
    return(IPoint2(a.x/f, a.y/f));
    }

M_STD_OSTREAM& operator<<	(	M_STD_OSTREAM &	,
		const IPoint2 &
	)

int MaxComponent ( const IPoint2 &  p )

inline

Remarks

Returns the component with the minimum abs value. 0=x, 1=y.

{ return(p.x>p.y?0:1); }

int MinComponent ( const IPoint2 &  p )

inline

Remarks

Returns the component with the minimum abs value. 0=x, 1=y.

{ return(p.x<p.y?0:1); }