point2.h File Reference

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

Go to the source code of this file.

Classes
class	Point2
Functions
Point2	operator+ (const Point2 &a, float f)
GEOMEXPORT float	Length (const Point2 &)
GEOMEXPORT int	MaxComponent (const Point2 &)
GEOMEXPORT int	MinComponent (const Point2 &)
GEOMEXPORT Point2	Normalize (const Point2 &)
GEOMEXPORT Point2	operator* (float, const Point2 &)
GEOMEXPORT Point2	operator* (const Point2 &, float)
GEOMEXPORT Point2	operator/ (const Point2 &, float)
GEOMEXPORT std::ostream &	operator<< (std::ostream &, const Point2 &)
float	LengthSquared (const Point2 &v)

---

Function Documentation

Point2 operator+	(	const Point2 &	a,
		float	f
	)		[inline]

Remarks:

Returns a copy of the Point2 argument offset by (f, f).

Definition at line 179 of file point2.h.

                                                  {
   return(Point2(a.x+f, a.y+f));
   }

float Length

(

const Point2 &

v

)

[inline]

Search for all occurrences

Remarks:

Returns the length of the Point2, ie:

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

Definition at line 208 of file point2.h.

                                     {  
    return (float)sqrt(v.x*v.x+v.y*v.y);
    }

GEOMEXPORT int MaxComponent

(

const Point2 &

)

Search for all occurrences

Remarks:

Returns the component with the maximum absolute value. 0=x, 1=y.

GEOMEXPORT int MinComponent

(

const Point2 &

)

Search for all occurrences

Remarks:

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

GEOMEXPORT Point2 Normalize

(

const Point2 &

)

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Remarks:

Returns a unit vector. This is a Point2 with each component divided by the point Length().

Point2 operator*	(	float	f,
		const Point2 &	a
	)		[inline]

Remarks:

Returns a Point2 multiplied by a scalar.

Definition at line 263 of file point2.h.

                                                  {
    return(Point2(a.x*f, a.y*f));
    }

Point2 operator*	(	const Point2 &	a,
		float	f
	)		[inline]

Remarks:

Returns a Point2 multiplied by a scalar.

Definition at line 267 of file point2.h.

                                                  {
    return(Point2(a.x*f, a.y*f));
    }

Point2 operator/	(	const Point2 &	a,
		float	f
	)		[inline]

Remarks:

Returns a Point2 whose x and y members are divided by a scalar.

Definition at line 271 of file point2.h.

                                                  {
    return(Point2(a.x/f, a.y/f));
    }

GEOMEXPORT std::ostream& operator<<	(	std::ostream &	,
		const Point2 &
	)

float LengthSquared

(

const Point2 &

v

)

[inline]

Search for all occurrences

Remarks:

The 'Length' squared of the point. This is v.x*v.x+v.y*v.y.

Definition at line 218 of file point2.h.

                                            {   
    return (float)(v.x*v.x+v.y*v.y);
    }