OBB Class Reference

Oritened Bounding Box(OBB) More...

#include <CCOBB.h>

Public Member Functions
	OBB ()
	OBB (const AABB &aabb)
	OBB ( var aabb)
	OBB ( local aabb)
	OBB (const Vec3 *verts, int num)
	OBB ( var verts, var num)
	OBB ( local verts, local num)
bool	containPoint (const Vec3 &point) const
void	set (const Vec3 &center, const Vec3 &_xAxis, const Vec3 &_yAxis, const Vec3 &_zAxis, const Vec3 &_extents)
var	set ( var center, var _xAxis, var _yAxis, var _zAxis, var _extents)
local	set ( local center, local _xAxis, local _yAxis, local _zAxis, local _extents)
void	reset ()
void	getCorners (Vec3 *verts) const
var	getCorners ( var verts)
local	getCorners ( local verts)
bool	intersects (const OBB &box) const
var	intersects ( var box)
local	intersects ( local box)
void	transform (const Mat4 &mat)
	Transforms the obb by the given transformation matrix. More...
var	transform ( var mat)
	Transforms the obb by the given transformation matrix. More...
local	transform ( local mat)
	Transforms the obb by the given transformation matrix. More...

Public Attributes
Vec3	_center
Vec3	_xAxis
var	_xAxis
local	_xAxis
Vec3	_yAxis
var	_yAxis
local	_yAxis
Vec3	_zAxis
var	_zAxis
local	_zAxis
Vec3	_extentX
var	_extentX
local	_extentX
Vec3	_extentY
var	_extentY
local	_extentY
Vec3	_extentZ
var	_extentZ
local	_extentZ
Vec3	_extents
var	_extents
local	_extents

Protected Member Functions
void	computeExtAxis ()
float	projectPoint (const Vec3 &point, const Vec3 &axis) const
var	projectPoint ( var point, var axis)
local	projectPoint ( local point, local axis)
void	getInterval (const OBB &box, const Vec3 &axis, float &min, float &max) const
var	getInterval ( var box, var axis, var min, var max)
local	getInterval ( local box, local axis, local min, local max)
Vec3	getEdgeDirection (int index) const
Vec3	getFaceDirection (int index) const
var	getFaceDirection ( var index)
local	getFaceDirection ( local index)

Detailed Description

Oritened Bounding Box(OBB)

the OBB is similar to the AABB but the bounding box has the same direction as Sprite3D. so it's collistion detection more precise than AABB

Constructor & Destructor Documentation

OBB

(

)

var OBB

(

)

local OBB

(

)

OBB

(

const AABB &

aabb

)

var OBB

(

var

aabb

)

local OBB

(

local

aabb

)

OBB	(	const Vec3 *	verts,
		int	num
	)

var OBB	(	var	verts,
		var	num
	)

local OBB	(	local	verts,
		local	num
	)

Member Function Documentation

void computeExtAxis ( )

inlineprotected

var computeExtAxis ( )

inlineprotected

local computeExtAxis ( )

inlineprotected

bool containPoint

(

const Vec3 &

point

)

const

var containPoint

(

var

point

)

local containPoint

(

local

point

)

void getCorners

(

Vec3 *

verts

)

const

var getCorners

(

var

verts

)

local getCorners

(

local

verts

)

Vec3 getEdgeDirection ( int  index ) const

protected

var getEdgeDirection ( var  index )

protected

local getEdgeDirection ( local  index )

protected

Vec3 getFaceDirection ( int  index ) const

protected

var getFaceDirection ( var  index )

protected

local getFaceDirection ( local  index )

protected

void getInterval ( const OBB &  box, const Vec3 &  axis, float &  min, float &  max  ) const

protected

var getInterval ( var  box, var  axis, var  min, var  max  )

protected

local getInterval ( local  box, local  axis, local  min, local  max  )

protected

bool intersects

(

const OBB &

box

)

const

var intersects

(

var

box

)

local intersects

(

local

box

)

float projectPoint ( const Vec3 &  point, const Vec3 &  axis  ) const

protected

var projectPoint ( var  point, var  axis  )

protected

local projectPoint ( local  point, local  axis  )

protected

void reset

(

)

var reset

(

)

local reset

(

)

void set	(	const Vec3 &	center,
		const Vec3 &	_xAxis,
		const Vec3 &	_yAxis,
		const Vec3 &	_zAxis,
		const Vec3 &	_extents
	)

var set	(	var	center,
		var	_xAxis,
		var	_yAxis,
		var	_zAxis,
		var	_extents
	)

local set	(	local	center,
		local	_xAxis,
		local	_yAxis,
		local	_zAxis,
		local	_extents
	)

void transform

(

const Mat4 &

mat

)

Transforms the obb by the given transformation matrix.

var transform

(

var

mat

)

Transforms the obb by the given transformation matrix.

local transform

(

local

mat

)

Transforms the obb by the given transformation matrix.

Member Data Documentation

Vec3 _center

var _center

local _center

Vec3 _extents

var _extents

local _extents

Vec3 _extentX

var _extentX

local _extentX

Vec3 _extentY

var _extentY

local _extentY

Vec3 _extentZ

var _extentZ

local _extentZ

Vec3 _xAxis

var _xAxis

local _xAxis

Vec3 _yAxis

var _yAxis

local _yAxis

Vec3 _zAxis

var _zAxis

local _zAxis

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The documentation for this class was generated from the following file:

• /Users/minggo/SourceCode/cocos2d-x/cocos/3d/CCOBB.h