Ogre::Sphere Class Reference

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

#include <OgreSphere.h>

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

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.

Constructor & Destructor Documentation

Sphere() [1/2]

Ogre::Sphere::Sphere ( )

inline

Standard constructor - creates a unit sphere around the origin.

Sphere() [2/2]

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

inline

Constructor allowing arbitrary spheres.

Parameters

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

Member Function Documentation

getRadius()

Real Ogre::Sphere::getRadius ( void  ) const

inline

Returns the radius of the sphere.

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

setRadius()

void Ogre::Sphere::setRadius ( Real  radius )

inline

Sets the radius of the sphere.

getCenter()

const Vector3& Ogre::Sphere::getCenter ( void  ) const

inline

Returns the center point of the sphere.

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

setCenter()

void Ogre::Sphere::setCenter ( const Vector3 &  center )

inline

Sets the center point of the sphere.

intersects() [1/4]

bool Ogre::Sphere::intersects ( const Sphere &  s ) const

inline

Returns whether or not this sphere intersects another sphere.

References Ogre::Math::Sqr().

Referenced by Ogre::Math::intersects().

intersects() [2/4]

bool Ogre::Sphere::intersects ( const AxisAlignedBox &  box ) const

inline

Returns whether or not this sphere intersects a box.

References Ogre::Math::intersects().

intersects() [3/4]

bool Ogre::Sphere::intersects ( const Plane &  plane ) const

inline

Returns whether or not this sphere intersects a plane.

References Ogre::Math::Abs(), and Ogre::Plane::getDistance().

intersects() [4/4]

bool Ogre::Sphere::intersects ( const Vector3 &  v ) const

inline

Returns whether or not this sphere intersects a point.

References Ogre::Math::Sqr().

merge()

void Ogre::Sphere::merge ( const Sphere &  oth )

inline

Merges another Sphere into the current sphere.

References getCenter(), getRadius(), Ogre::Math::Sqr(), Ogre::Math::Sqrt(), and Ogre::Vector< dims, T >::squaredLength().

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

• OgreSphere.h