This module contains general geometry primitives for use in 2D or 3D spaces. More...

Collaboration diagram for Core Geometry Objects:

Classes
struct	frustum_t
	Basic frustum object. More...
struct	point2d_t< T >
	Template for two-dimensional point. More...
struct	rect2d_t< T >
	templated 2D rectangle More...
struct	matrix4_t
	4x4 matrix object. More...
struct	placement_t
struct	plane_t
	basic 2D plane in 3D space. More...
struct	prism_base_t< Size >
	a prism is a 3D object, basically a polygon in some plane with some extent in the plane normal direction. More...
struct	quaternion_t
struct	xform_2d_t
Functions
	point2d_t::point2d_t (IN const point2d_t &pt) throw ()
void	point2d_t::set (IN T in_x, IN T in_y) throw ()
void	point2d_t::clear (void) throw ()
void	point2d_t::dump (const char *title) const throw ()
	dumps contents to stderr
point2d_t	point2d_t::operator- (IN const point2d_t &rhs) const throw ()
	vector subtraction
point2d_t	point2d_t::operator+ (IN const point2d_t &rhs) const throw ()
	vector addition
void	point2d_t::normalize (void) throw ()
static T	point2d_t::dotProduct (IN const point2d_t &u, IN const point2d_t &v) throw ()
	rect2d_t::rect2d_t (void) throw ()
	rect2d_t::rect2d_t (IN T iLeft, IN T iTop, IN T iRight, IN T iBottom) throw ()
void	rect2d_t::inflate (IN const rect2d_t &r) throw ()
	expand rect to fully contain input rect
bool	rect2d_t::isValid (void) const throw ()
	valid?
void	rect2d_t::expand (IN T s) throw ()
	expand rect in all dimensions by provided amount
bool	rect2d_t::isEmpty (void) const throw ()
	null size?
void	rect2d_t::shift (IN T dx, IN T dy) throw ()
	move rect by specified dx,dy amount
bool	rect2d_t::contains (IN const point_t &pt) const throw ()
	does this rect contain the specified point?
bool	rect2d_t::contains (IN float x, IN float y) const throw ()
	does this rect contain the specified point?
bool	rect2d_t::contains (IN const rect2d_t &r) const throw ()
	does this rect fully contain the specified rect?
bool	rect2d_t::intersects (IN const rect2d_t &r) const throw ()
	does this rect intersect the specified rect?
void	rect2d_t::expandToInclude (IN const point_t &p) throw ()
	expand to include the given point
void	rect2d_t::expandToInclude (IN T x, IN T y) throw ()
	expand to include the given point
void	rect2d_t::set (IN T in_left, IN T in_top, IN T in_right, IN T in_bottom) throw ()
	explicitly set the rect coordinates
void	rect2d_t::fromPoints (IN const point_t &p0, IN const point_t &p1) throw ()
	minimum bounding rect containing the two points
void	rect2d_t::scale (IN float rX, IN float rY) throw ()
	scale out in X and Y directions
void	rect2d_t::clear (void) throw ()
	reset rect to be null rectangle at (0,0)
void	rect2d_t::dump (IN const char *title) const throw ()
	debug helper to dump rectangle to std err
point_t	rect2d_t::getTopLeft (void) const throw ()
	return top left coordinate
point_t	rect2d_t::getBottomRight (void) const throw ()
	return top right coordinate
Variables
T	point2d_t::x
T	point2d_t::y
T	rect2d_t::left
T	rect2d_t::top
T	rect2d_t::right
T	rect2d_t::bottom

enum	eContains { eContains_Fully = 0x01, eContains_Partial = 0x02, eContains_None = 0x10, eContains_HitMask = 0x03, eContains_Invalid = 0 }
point3d_t	operator* (IN const point3d_t &p, IN float r) throw ()
point3d_t	operator* (IN float r, IN const point3d_t &p) throw ()
point3d_t	operator+ (IN const point3d_t &p, IN const point3d_t &q) throw ()
point3d_t	operator- (IN const point3d_t &p, IN const point3d_t &q) throw ()
float	dotProduct (IN const point3d_t &p, IN const point3d_t &q) throw ()
	get dot product of two points/vectors
point3d_t	crossProduct (IN const point3d_t &p, IN const point3d_t &q) throw ()
const vector3d_t &	normalize (IO vector3d_t &v) throw ()
static float	getDistance2 (IN const point3d_t &p0, IN const point3d_t &p1) throw ()
point3d_t	readPoint (IN std::istream &stream)
rect3d_t	readRect (IN std::istream &stream)
void	parsePoint3d (IO std::istream &stream, OUT point3d_t &p)
void	parseRect3d (IO std::istream &stream, OUT rect3d_t &r)
void	parsePoint3d (IN const char *string, OUT point3d_t &p)
void	parseRect3d (IN const char *string, OUT rect3d_t &r)
typedef point3d_t	vector3d_t

Detailed Description

This module contains general geometry primitives for use in 2D or 3D spaces.

Typedef Documentation

typedef point3d_t vector3d_t

Definition at line 167 of file geometry_3d.h.

Enumeration Type Documentation

enum eContains

this enum can be used for some intersection/containment tests

Enumerator:

eContains_Fully	object A fully contains object B
eContains_Partial	objects A and B intersect or overlap
eContains_None	object A and B do not overlap at all
eContains_HitMask	full or partial overlap
eContains_Invalid

Definition at line 48 of file geometry_3d.h.

Function Documentation

template<class T>

point2d_t< T >::point2d_t ( IN const point2d_t< T > & pt ) throw () [inline, inherited]

Definition at line 77 of file geometry_2d.h.

template<class T>

void point2d_t< T >::set	(	IN T	in_x,
		IN T	in_y
	)			throw () `[inline, inherited]`

Definition at line 82 of file geometry_2d.h.

template<class T>

void point2d_t< T >::clear ( void ) throw () [inline, inherited]

Definition at line 87 of file geometry_2d.h.

template<class T>

void point2d_t< T >::dump ( const char * title ) const throw () [inline, inherited]

dumps contents to stderr

Definition at line 94 of file geometry_2d.h.

template<class T>

point2d_t point2d_t< T >::operator- ( IN const point2d_t< T > & rhs ) const throw () [inline, inherited]

vector subtraction

Definition at line 101 of file geometry_2d.h.

template<class T>

point2d_t point2d_t< T >::operator+ ( IN const point2d_t< T > & rhs ) const throw () [inline, inherited]

vector addition

Definition at line 108 of file geometry_2d.h.

template<class T>

void point2d_t< T >::normalize ( void ) throw () [inline, inherited]

Definition at line 112 of file geometry_2d.h.

template<class T>

static T point2d_t< T >::dotProduct	(	IN const point2d_t< T > &	u,
		IN const point2d_t< T > &	v
	)			throw () `[inline, static, inherited]`

Definition at line 121 of file geometry_2d.h.

template<class T>

rect2d_t< T >::rect2d_t ( void ) throw () [inline, inherited]

Definition at line 139 of file geometry_2d.h.

template<class T>

rect2d_t< T >::rect2d_t	(	IN T	iLeft,
		IN T	iTop,
		IN T	iRight,
		IN T	iBottom
	)			throw () `[inline, inherited]`

Definition at line 140 of file geometry_2d.h.

template<class T>

void rect2d_t< T >::inflate ( IN const rect2d_t< T > & r ) throw () [inline, inherited]

expand rect to fully contain input rect

Definition at line 148 of file geometry_2d.h.

template<class T>

bool rect2d_t< T >::isValid ( void ) const throw () [inline, inherited]

valid?

Definition at line 160 of file geometry_2d.h.

template<class T>

void rect2d_t< T >::expand ( IN T s ) throw () [inline, inherited]

expand rect in all dimensions by provided amount

Definition at line 165 of file geometry_2d.h.

template<class T>

bool rect2d_t< T >::isEmpty ( void ) const throw () [inline, inherited]

null size?

Definition at line 173 of file geometry_2d.h.

template<class T>

void rect2d_t< T >::shift	(	IN T	dx,
		IN T	dy
	)			throw () `[inline, inherited]`

move rect by specified dx,dy amount

Definition at line 181 of file geometry_2d.h.

template<class T>

bool rect2d_t< T >::contains ( IN const point_t & pt ) const throw () [inline, inherited]

does this rect contain the specified point?

Definition at line 189 of file geometry_2d.h.

template<class T>

bool rect2d_t< T >::contains	(	IN float	x,
		IN float	y
	)			const throw () `[inline, inherited]`

does this rect contain the specified point?

Definition at line 197 of file geometry_2d.h.

template<class T>

bool rect2d_t< T >::contains ( IN const rect2d_t< T > & r ) const throw () [inline, inherited]

does this rect fully contain the specified rect?

Definition at line 202 of file geometry_2d.h.

template<class T>

bool rect2d_t< T >::intersects ( IN const rect2d_t< T > & r ) const throw () [inline, inherited]

does this rect intersect the specified rect?

Definition at line 210 of file geometry_2d.h.

template<class T>

void rect2d_t< T >::expandToInclude ( IN const point_t & p ) throw () [inline, inherited]

expand to include the given point

Definition at line 220 of file geometry_2d.h.

template<class T>

void rect2d_t< T >::expandToInclude	(	IN T	x,
		IN T	y
	)			throw () `[inline, inherited]`

expand to include the given point

Definition at line 225 of file geometry_2d.h.

template<class T>

void rect2d_t< T >::set	(	IN T	in_left,
		IN T	in_top,
		IN T	in_right,
		IN T	in_bottom
	)			throw () `[inline, inherited]`

explicitly set the rect coordinates

Definition at line 233 of file geometry_2d.h.

template<class T>

void rect2d_t< T >::fromPoints	(	IN const point_t &	p0,
		IN const point_t &	p1
	)			throw () `[inline, inherited]`

minimum bounding rect containing the two points

Definition at line 242 of file geometry_2d.h.

template<class T>

void rect2d_t< T >::scale	(	IN float	rX,
		IN float	rY
	)			throw () `[inline, inherited]`

scale out in X and Y directions

Definition at line 250 of file geometry_2d.h.

template<class T>

void rect2d_t< T >::clear ( void ) throw () [inline, inherited]

reset rect to be null rectangle at (0,0)

Definition at line 258 of file geometry_2d.h.

template<class T>

void rect2d_t< T >::dump ( IN const char * title ) const throw () [inline, inherited]

debug helper to dump rectangle to std err

Definition at line 261 of file geometry_2d.h.

template<class T>

point_t rect2d_t< T >::getTopLeft ( void ) const throw () [inline, inherited]

return top left coordinate

Definition at line 268 of file geometry_2d.h.

template<class T>

point_t rect2d_t< T >::getBottomRight ( void ) const throw () [inline, inherited]

return top right coordinate

Definition at line 273 of file geometry_2d.h.

point3d_t operator*	(	IN const point3d_t &	p,
		IN float	r
	)			throw ()

Definition at line 224 of file geometry_3d.cpp.

point3d_t operator*	(	IN float	r,
		IN const point3d_t &	p
	)			throw () `[inline]`

Definition at line 134 of file geometry_3d.h.

point3d_t operator+	(	IN const point3d_t &	p,
		IN const point3d_t &	q
	)			throw () `[inline]`

Definition at line 138 of file geometry_3d.h.

point3d_t operator-	(	IN const point3d_t &	p,
		IN const point3d_t &	q
	)			throw () `[inline]`

Definition at line 143 of file geometry_3d.h.

float dotProduct	(	IN const point3d_t &	p,
		IN const point3d_t &	q
	)			throw () `[inline]`

get dot product of two points/vectors

Definition at line 149 of file geometry_3d.h.

point3d_t crossProduct	(	IN const point3d_t &	p,
		IN const point3d_t &	q
	)			throw () `[inline]`

Definition at line 156 of file geometry_3d.h.

const vector3d_t& normalize ( IO vector3d_t & v ) throw ()

Definition at line 239 of file geometry_3d.cpp.

static float getDistance2	(	IN const point3d_t &	p0,
		IN const point3d_t &	p1
	)			throw () `[inline, static]`

Definition at line 352 of file geometry_3d.h.

point3d_t readPoint ( IN std::istream & stream )

Definition at line 260 of file geometry_3d.cpp.

rect3d_t readRect ( IN std::istream & stream )

Definition at line 283 of file geometry_3d.cpp.

void parsePoint3d	(	IO std::istream &	stream,
		OUT point3d_t &	p
	)

Definition at line 312 of file geometry_3d.cpp.

void parseRect3d	(	IO std::istream &	stream,
		OUT rect3d_t &	r
	)

Definition at line 332 of file geometry_3d.cpp.

void parsePoint3d	(	IN const char *	string,
		OUT point3d_t &	p
	)

Definition at line 348 of file geometry_3d.cpp.

void parseRect3d	(	IN const char *	string,
		OUT rect3d_t &	r
	)

Definition at line 364 of file geometry_3d.cpp.

Variable Documentation

template<class T>

T point2d_t< T >::x [inherited]

Definition at line 127 of file geometry_2d.h.

template<class T>

T point2d_t< T >::y [inherited]

Definition at line 128 of file geometry_2d.h.

template<class T>

T rect2d_t< T >::left [inherited]

Definition at line 278 of file geometry_2d.h.

template<class T>

T rect2d_t< T >::top [inherited]

Definition at line 279 of file geometry_2d.h.

template<class T>

T rect2d_t< T >::right [inherited]

Definition at line 280 of file geometry_2d.h.

template<class T>

T rect2d_t< T >::bottom [inherited]

Definition at line 281 of file geometry_2d.h.

Core Geometry Objects [Geometry Libraries]

Classes

Functions

Variables

Detailed Description

Typedef Documentation

Enumeration Type Documentation

Function Documentation

Variable Documentation

Core Geometry Objects
[Geometry Libraries]