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
	Applies the projector using the given point, returning the point in three dimensions that it projects to.
virtual SbVec3f	intersect (const SbLine &line)=0
	Applies the projector using the given line in world coordinates, returning the point in three dimensions that it projects to.
SbVec3f	projectAndGetRotation (const SbVec2f &point, SbRotation &rot)
	Applies 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
	Gets a rotation given two points on this sphere projector.
void	setSphere (const SbSphere &sph)
	Sets the sphere on which to project points.
const SbSphere &	getSphere () const
	Gets the sphere on which to project points.
void	setOrientToEye (SbBool orientToEye)
	Sets whether the projector should always be oriented towards the eye.
SbBool	isOrientToEye () const
	Gets whether the projector should always be oriented towards the eye.
void	setFront (SbBool inFront)
	Sets whether the projector should intersect the half of the sphere that faces the eye.
SbBool	isFront () const
	Gets whether the projector should intersect the half of the sphere that faces the eye.
SbBool	isPointInFront (const SbVec3f &point) const
	Gets whether the projector should intersect the half of the sphere that faces the eye.
virtual void	setWorkingSpace (const SbMatrix &space)
	Sets the transform space to work in.
virtual	~SbSphereProjector ()
	Destructor.
Public Member Functions inherited from SbProjector
virtual	~SbProjector ()
	Destructor.
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.
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.

Detailed Description

Sphere projector.

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 78 of file SbSphereProjector.h.

Constructor & Destructor Documentation

~SbSphereProjector()

virtual SbSphereProjector::~SbSphereProjector ( )

inlinevirtual

Destructor.

Definition at line 158 of file SbSphereProjector.h.

Member Function Documentation

getRotation()

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

pure virtual

Gets a rotation given two points on this sphere projector.

The rotation will be on the surface of the sphere.

Implemented in SbSpherePlaneProjector, SbSphereSectionProjector, and SbSphereSheetProjector.

getSphere()

const SbSphere & SbSphereProjector::getSphere ( ) const

inline

Gets the sphere on which to project points.

Definition at line 122 of file SbSphereProjector.h.

intersect()

virtual SbVec3f SbSphereProjector::intersect ( const SbLine &  line )

pure virtual

Applies the projector using the given line in world coordinates, returning the point in three dimensions that it projects to.

New for v3.0.

Implements SbProjector.

Implemented in SbSpherePlaneProjector, SbSphereSectionProjector, and SbSphereSheetProjector.

isFront()

SbBool SbSphereProjector::isFront ( ) const

inline

Gets whether the projector should intersect the half of the sphere that faces the eye.

Definition at line 144 of file SbSphereProjector.h.

isOrientToEye()

SbBool SbSphereProjector::isOrientToEye ( ) const

inline

Gets whether the projector should always be oriented towards the eye.

Definition at line 132 of file SbSphereProjector.h.

isPointInFront()

SbBool SbSphereProjector::isPointInFront

(

const SbVec3f &

point

)

const

Gets whether the projector should intersect the half of the sphere that faces the eye.

project()

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

pure virtual

Applies the projector using the given point, returning the point in three dimensions that it projects to.

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
	)

Applies the projector using the given point, returning the point in three dimensions that it projects to.

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

(

SbBool

inFront

)

Sets whether the projector should intersect the half of the sphere that faces the eye.

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

setOrientToEye()

void SbSphereProjector::setOrientToEye

(

SbBool

orientToEye

)

Sets whether the projector should always be oriented towards the eye.

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

setSphere()

void SbSphereProjector::setSphere

(

const SbSphere &

sph

)

Sets the sphere on which to project points.

The default sphere has radius 1.0.

setWorkingSpace()

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

virtual

Sets the transform space to work in.

Reimplemented from SbProjector.

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

• Inventor/projectors/SbSphereProjector.h