SbSphereProjector Class Reference

Sphere projector. More...

#include <Inventor/projectors/SbSphereProjector.h>

Inheritance diagram for SbSphereProjector:

Public Member Functions
virtual SbVec3f	project (const SbVec2f &point)=0
	Apply the projector using the given point, returning the point in three dimensions that it projects to.
SbVec3f	projectAndGetRotation (const SbVec2f &point, SbRotation &rot)
	Apply the projector using the given point, returning the point in three dimensions that it projects to.
virtual SbRotation	getRotation (const SbVec3f &point1, const SbVec3f &point2)=0
	Get a rotation given two points on this sphere projector.
void	setSphere (const SbSphere &sph)
	Set and get the sphere on which to project points.
const SbSphere &	getSphere () const
	Set and get the sphere on which to project points.
void	setOrientToEye (bool orientToEye)
	Set and get whether the projector should always be oriented towards the eye.
bool	isOrientToEye () const
	Set and get whether the projector should always be oriented towards the eye.
void	setFront (bool inFront)
	Set whether the projector should intersect the half of the sphere that faces the eye.
bool	isFront () const
	Get whether the projector should intersect the half of the sphere that faces the eye.
bool	isPointInFront (const SbVec3f &point) const
	Get whether the projector should intersect the half of the sphere that faces the eye.
virtual void	setWorkingSpace (const SbMatrix &space)
	Set the transform space to work in.
	~SbSphereProjector ()
	Destructor.
Public Member Functions inherited from SbProjector
virtual SbVec3f	project (const SbVec2f &point)=0
	Apply the projector using the given point, returning the point in three dimensions that it projects to.
virtual void	setViewVolume (const SbViewVolume &vol)
	Set the view volume to use for the projection.
const SbViewVolume &	getViewVolume () const
	Get the view volume to use for the projection.
virtual void	setWorkingSpace (const SbMatrix &space)
	Set the transform space to work in.
const SbMatrix &	getWorkingSpace () const
	Get the transform space to work in.
virtual SbProjector *	copy () const =0
	Creates and returns an exact copy of the projector.

Protected Member Functions
	SbSphereProjector (bool orientToEye)
	Constructors The default sphere to use has a radius of 1.0 and is centered at (0,0,0).
	SbSphereProjector (const SbSphere &s, bool orientToEye)
Protected Member Functions inherited from SbProjector
	SbProjector ()
	Default constructor.
virtual	~SbProjector ()
SbLine	getWorkingLine (const SbVec2f &point) const
	Given this mouse point, return the line it projects to in working space.

Protected Attributes
bool	intersectFront
	Are intersections done on the front half (if not, they're done on the back half) of the sphere?
SbSphere	sphere
	The sphere being used.
bool	orientToEye
	TRUE if always oriented to eye.
bool	needSetup
	Set TRUE whenever sphere, work space or orientation changes.
SbVec3f	lastPoint
	cached last point on this projector
Protected Attributes inherited from SbProjector
SbViewVolume	viewVol
SbMatrix	worldToWorking
SbMatrix	workingToWorld

Detailed Description

SbSphereProjector is an abstract base class for projectors that use a sphere in their projection. Sphere projectors are typically used to write interactive 3D manipulators and viewers.

See Also

SbCylinderProjector, SbCylinderPlaneProjector, SbCylinderSectionProjector, SbCylinderSheetProjector, SbLineProjector, SbPlaneProjector, SbSpherePlaneProjector, SbSphereSectionProjector, SbSphereSheetProjector

Definition at line 79 of file SbSphereProjector.h.

Constructor & Destructor Documentation

~SbSphereProjector()

SbSphereProjector::~SbSphereProjector ( )

inline

Definition at line 131 of file SbSphereProjector.h.

SbSphereProjector() [1/2]

SbSphereProjector::SbSphereProjector ( bool  orientToEye )

protected

SbSphereProjector() [2/2]

SbSphereProjector::SbSphereProjector ( const SbSphere &  s, bool  orientToEye  )

protected

Member Function Documentation

getRotation()

virtual SbRotation SbSphereProjector::getRotation ( const SbVec3f &  point1, const SbVec3f &  point2  )

pure virtual

The rotation will be on the surface of the sphere.

Implemented in SbSpherePlaneProjector, SbSphereSectionProjector, and SbSphereSheetProjector.

getSphere()

const SbSphere & SbSphereProjector::getSphere ( ) const

inline

The default sphere has radius 1.0.

Definition at line 107 of file SbSphereProjector.h.

isFront()

bool SbSphereProjector::isFront ( ) const

inline

Definition at line 122 of file SbSphereProjector.h.

isOrientToEye()

bool SbSphereProjector::isOrientToEye ( ) const

inline

Set to FALSE if the tolerance should be evaluated in working space.

Definition at line 114 of file SbSphereProjector.h.

isPointInFront()

bool SbSphereProjector::isPointInFront

(

const SbVec3f &

point

)

const

project()

virtual SbVec3f SbSphereProjector::project ( const SbVec2f &  point )

pure virtual

The point should be normalized from 0-1, with (0,0) at the lower-left.

Implements SbProjector.

Implemented in SbSpherePlaneProjector, SbSphereSectionProjector, and SbSphereSheetProjector.

projectAndGetRotation()

SbVec3f SbSphereProjector::projectAndGetRotation	(	const SbVec2f &	point,
		SbRotation &	rot
	)

This also returns in rot a rotation on the surface of the sphere from the last projected point to this one. The passed point should be normalized (i.e. lie in the range [0.0,1.0]), with (0,0) at the lower-left.

setFront()

void SbSphereProjector::setFront

(

bool

inFront

)

Set to FALSE if the projector should intersect with the rear half.

setOrientToEye()

void SbSphereProjector::setOrientToEye

(

bool

orientToEye

)

Set to FALSE if the tolerance should be evaluated in working space.

setSphere()

void SbSphereProjector::setSphere

(

const SbSphere &

sph

)

The default sphere has radius 1.0.

setWorkingSpace()

virtual void SbSphereProjector::setWorkingSpace ( const SbMatrix &  space )

virtual

Reimplemented from SbProjector.

Member Data Documentation

intersectFront

bool SbSphereProjector::intersectFront

protected

Definition at line 141 of file SbSphereProjector.h.

lastPoint

SbVec3f SbSphereProjector::lastPoint

protected

Definition at line 149 of file SbSphereProjector.h.

needSetup

bool SbSphereProjector::needSetup

protected

Definition at line 145 of file SbSphereProjector.h.

orientToEye

bool SbSphereProjector::orientToEye

protected

Definition at line 144 of file SbSphereProjector.h.

sphere

SbSphere SbSphereProjector::sphere

protected

Definition at line 143 of file SbSphereProjector.h.

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

• C:/jh/mevislab/4.0.2_1/build/MeVis/ThirdParty/Sources/Inventor/include/Inventor/projectors/SbSphereProjector.h