SbPlaneProjector

NAME

SbPlaneProjector – plane projector

INHERITS FROM

SbProjector >

SbPlaneProjector

SYNOPSIS

#include <Inventor/projectors/SbPlaneProjector.h>

Methods from class SbPlaneProjector:

SbPlaneProjector(SbBool orient = FALSE)

SbPlaneProjector(const SbPlane &plane, SbBool orient = FALSE)

~SbPlaneProjector()

void setPlane(const SbPlane &plane)

const SbPlane & getPlane() const

void setOrientToEye(SbBool orientToEye)

SbBool isOrientToEye() const

virtual SbVec3f getVector(const SbVec2f &mousePosition1, const SbVec2f &mousePosition2)

virtual SbVec3f getVector(const SbVec2f &mousePosition)

void setStartPosition(const SbVec2f &mousePosition)

void setStartPosition(const SbVec3f &point)

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

SbPlaneProjector projects the mouse onto a plane. This is typically used to write interactive 3D manipulators and viewers.

METHODS

SbPlaneProjector(SbBool orient = FALSE)

Constructor. The default plane passes through the origin and is oriented perpendicular to the Z axis.

SbPlaneProjector(const SbPlane &plane, SbBool orient = FALSE)

Constructor which is passed a plane. If orient to eye is TRUE, the plane will be reoriented to the eye.

~SbPlaneProjector()

Destructor.

void setPlane(const SbPlane &plane)

const SbPlane & getPlane() const

Set and get the plane to use.

void setOrientToEye(SbBool orientToEye)

SbBool isOrientToEye() const

Set and get whether the projector should be oriented towards the eye. If orientToEye is set to TRUE, the given plane's direction is ignored, and the plane will be oriented to the eye. It will pass through the same point from the origin defined by the original dir * dist. Set to FALSE if the plane's direction should remain in working space.

virtual SbVec3f getVector(const SbVec2f &mousePosition1, const SbVec2f &mousePosition2)

Get a vector on this plane given two normalized mouse positions.

virtual SbVec3f getVector(const SbVec2f &mousePosition)

Get a vector given the current mouse point. Uses the last point on this projector from the previous call to getVector() or setStartPostion(). Do not use this if the working space transform is changing since the new point will be in a different space than the old one.

void setStartPosition(const SbVec2f &mousePosition)

Set the initial mouse position.

void setStartPosition(const SbVec3f &point)

Set the initial position from a point on the projector.