SbLineProjector(3IV)

NAME
SbLineProjector — line projector

INHERITS FROM
SbProjector > SbLineProjector

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

Methods from class SbLineProjector:

SbLineProjector()

~SbLineProjector()
void
setLine(const SbLine &line)
const SbLine &
getLine() 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
SbLineProjector projects a 2D point, typically the location of the cursor, onto a 3D line.

METHODS

SbLineProjector()

~SbLineProjector()
Constructor and destructor. The default line passes through the origin and is aligned with the Y axis.

void
setLine(const SbLine &line)
const SbLine &
getLine() const
Set and get the line on which to project 2D points.

virtual SbVec3f
getVector(const SbVec2f &mousePosition1, const SbVec2f &mousePosition2)
Get a vector on this line given two normalized mouse points.

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 position from a mouse position.

void
setStartPosition(const SbVec3f &point)
Set the initial position from a point on the projector.

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