SbSphereProjector(3IV)

NAME
SbSphereProjector — sphere projector

INHERITS FROM
SbProjector > SbSphereProjector

SYNOPSIS
#include <Inventor/projectors/SbSphereProjector.h>

Methods from class SbSphereProjector:

SbVec3f
projectAndGetRotation(const SbVec2f &point, SbRotation &rot)
virtual SbRotation
getRotation(const SbVec3f &point1, const SbVec3f &point2)
void
setSphere(const SbSphere &sph)
const SbSphere &
getSphere() const
void
setOrientToEye(SbBool orientToEye)
SbBool
isOrientToEye() const
void
setFront(SbBool isFront)
SbBool
isFront() const
SbBool
isPointInFront(const SbVec3f &point) const

Methods from class SbProjector:

virtual SbVec3f
project(const SbVec2f &point)
virtual void
setViewVolume(const SbViewVolume &vol)
const SbViewVolume &
getViewVolume() const
virtual void
setWorkingSpace(const SbMatrix &space)
const SbMatrix &
getWorkingSpace() const
virtual SbProjector *
copy() const

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.

METHODS
SbVec3f
projectAndGetRotation(const SbVec2f &point, SbRotation &rot)
Apply 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.

virtual SbRotation
getRotation(const SbVec3f &point1, const SbVec3f &point2)
Get a rotation given two points on this sphere projector. The rotation will be on the surface of the sphere.

void
setSphere(const SbSphere &sph)
const SbSphere &
getSphere() const
Set and get the sphere on which to project points. The default sphere has radius 1.0.

void
setOrientToEye(SbBool orientToEye)
SbBool
isOrientToEye() const
Set and get whether the projector should always be oriented towards the eye. Set to FALSE if the tolerance should be evaluated in working space.

void
setFront(SbBool isFront)
SbBool
isFront() const
SbBool
isPointInFront(const SbVec3f &point) const
Set and get 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.

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