Ogre::Sphere Class Reference
[Math]

A sphere primitive, mostly used for bounds checking. More...

#include <OgreSphere.h>

List of all members.

Public Member Functions
	Sphere ()
	Standard constructor - creates a unit sphere around the origin.
	Sphere (const Vector3 &center, Real radius)
	Constructor allowing arbitrary spheres.
Real	getRadius (void) const
	Returns the radius of the sphere.
void	setRadius (Real radius)
	Sets the radius of the sphere.
const Vector3 &	getCenter (void) const
	Returns the center point of the sphere.
void	setCenter (const Vector3 &center)
	Sets the center point of the sphere.
bool	intersects (const Sphere &s) const
	Returns whether or not this sphere intersects another sphere.
bool	intersects (const AxisAlignedBox &box) const
	Returns whether or not this sphere intersects a box.
bool	intersects (const Plane &plane) const
	Returns whether or not this sphere intersects a plane.
bool	intersects (const Vector3 &v) const
	Returns whether or not this sphere intersects a point.
void	merge (const Sphere &oth)
	Merges another Sphere into the current sphere.
Protected Attributes
Real	mRadius
Vector3	mCenter

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Detailed Description

A sphere primitive, mostly used for bounds checking.

Remarks:

A sphere in math texts is normally represented by the function x^2 + y^2 + z^2 = r^2 (for sphere's centered on the origin). Ogre stores spheres simply as a center point and a radius.

Definition at line 51 of file OgreSphere.h.

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Constructor & Destructor Documentation

Ogre::Sphere::Sphere

(

)

Standard constructor - creates a unit sphere around the origin.

Definition at line 58 of file OgreSphere.h.

Ogre::Sphere::Sphere	(	const Vector3 &	center,
		Real	radius
	)

Constructor allowing arbitrary spheres.

Parameters:

	center	The center point of the sphere.
	radius	The radius of the sphere.

Definition at line 63 of file OgreSphere.h.

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Member Function Documentation

const Vector3& Ogre::Sphere::getCenter

(

void

)

const

Returns the center point of the sphere.

Definition at line 73 of file OgreSphere.h.

Referenced by Ogre::PlaneBoundedVolume::intersects(), and merge().

Real Ogre::Sphere::getRadius

(

void

)

const

Returns the radius of the sphere.

Definition at line 67 of file OgreSphere.h.

Referenced by Ogre::PlaneBoundedVolume::intersects(), and merge().

bool Ogre::Sphere::intersects

(

const Vector3 &

v

)

const

Returns whether or not this sphere intersects a point.

Definition at line 95 of file OgreSphere.h.

References Ogre::Math::Sqr().

bool Ogre::Sphere::intersects

(

const Plane &

plane

)

const

Returns whether or not this sphere intersects a plane.

Definition at line 90 of file OgreSphere.h.

References Ogre::Math::intersects().

bool Ogre::Sphere::intersects

(

const AxisAlignedBox &

box

)

const

Returns whether or not this sphere intersects a box.

Definition at line 85 of file OgreSphere.h.

References Ogre::Math::intersects().

bool Ogre::Sphere::intersects

(

const Sphere &

s

)

const

Returns whether or not this sphere intersects another sphere.

Definition at line 79 of file OgreSphere.h.

References mCenter, mRadius, Ogre::Math::Sqr(), and Ogre::Vector3::squaredLength().

void Ogre::Sphere::merge

(

const Sphere &

oth

)

Merges another Sphere into the current sphere.

Definition at line 100 of file OgreSphere.h.

References getCenter(), getRadius(), Ogre::Math::Sqr(), Ogre::Math::Sqrt(), and Ogre::Vector3::squaredLength().

void Ogre::Sphere::setCenter

(

const Vector3 &

center

)

Sets the center point of the sphere.

Definition at line 76 of file OgreSphere.h.

void Ogre::Sphere::setRadius

(

Real

radius

)

Sets the radius of the sphere.

Definition at line 70 of file OgreSphere.h.

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Member Data Documentation

Vector3 Ogre::Sphere::mCenter [protected]

Definition at line 55 of file OgreSphere.h.

Referenced by intersects().

Real Ogre::Sphere::mRadius [protected]

Definition at line 54 of file OgreSphere.h.

Referenced by intersects().

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

• OgreSphere.h