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Man Pages


Manual Reference Pages  -  SBSPHEREPROJECTOR (3)

NAME

SbSphereProjector — sphere projector

CONTENTS

Inherits From
Synopsis
Description
Methods
File Format/defaults
See Also

INHERITS FROM

SbProjector > SbSphereProjector

SYNOPSIS

#include <Inventor/projectors/SbSphereProjector.h>

Methods from class SbSphereProjector:

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

Methods from class SbProjector:

    virtual SbVec3f    
                       
virtual SbVec3f         project(const SbVec2f &point)    
virtual void    
                       
virtual void            setViewVolume(const SbViewVolume &vol)    
const SbViewVolume &    
                       
const SbViewVolume &    getViewVolume() const    
virtual void    
                       
virtual void            setWorkingSpace(const SbMatrix &space)    
const SbMatrix &    
                       
const SbMatrix &        getWorkingSpace() const    
virtual SbProjector *    
                       
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    
                    
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    
                    
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    
                    
void                 setSphere(const SbSphere &sph)    
const SbSphere &    
                    
const SbSphere &     getSphere() const
Set and get the sphere on which to project points. The default sphere has radius 1.0.

    void    
                    
void                 setOrientToEye(SbBool orientToEye)    
SbBool    
                    
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    
                    
void                 setFront(SbBool isFront)    
SbBool    
                    
SbBool               isFront() const    
SbBool    
                    
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.

FILE FORMAT/DEFAULTS

SEE ALSO

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

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