SbSphereProjector

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.