NAME

SbCylinderProjector — cylinder projector

INHERITS FROM

SbProjector > SbCylinderProjector

SYNOPSIS

#include <Inventor/projectors/SbCylinderProjector.h>

Methods from class SbCylinderProjector:

~SbCylinderProjector()

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

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

void setCylinder(const SbCylinder &cyl)

const SbCylinder & getCylinder() 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

SbCylinderProjector is an abstract base class for projectors that use a cylinder in their projection. The getRotation() method for an SbCylinderProjector will always return a rotation that is about the axis of the cylinder. Cylinder projectors are typically used to write interactive 3D manipulators and viewers.

METHODS

~SbCylinderProjector()

Destructor.

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 about the axis of the cylinder 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 cylinder projector. The rotation will be about the axis of the cylinder.

void setCylinder(const SbCylinder &cyl)

const SbCylinder & getCylinder() const

Set and get the cylinder on which to project points. The default cylinder is aligned with the Y axis and 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 cylinder that faces the eye. Set to FALSE if the projector should intersect with the rear half.

SEE ALSO

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