SbProjector(3IV)

NAME
     SbProjector - base class for representing projectors

INHERITS FROM
     SbProjector

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

          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
     SbProjector is the base class for all projector classes. Projector
     classes are used to convert from window space (usually based on the mouse
     location) into a 3D point. This is done by projecting the window
     coordinate as a 3D vector onto a geometric function in 3-space, and
     computing the intersection point. Most projectors actually compute
     incremental changes and produce incremental rotations and translation as
     needed.  Projectors are used to write 3D interactive manipulators and
     viewers.

METHODS
     virtual SbVec3f        project(const SbVec2f &point)
          Apply the projector using the given point, returning the point in
          three dimensions that it projects to. The point should be normalized
          (lie in the range [0.0,1.0]), with (0,0) at the lower-left.

     virtual void           setViewVolume(const SbViewVolume &vol)
     const SbViewVolume &   getViewVolume() const
          Set and get the view volume to use for the projection. This is
          typically supplied from SoCamera::getViewVolume().

     virtual void           setWorkingSpace(const SbMatrix &space)
     const SbMatrix &       getWorkingSpace() const
          Set and get the transform space to work in. This matrix should
          transform working space coordinates into world space. The default
          matrix is identity, meaning that the default working space is world
          space.

     virtual SbProjector *  copy() const
          Creates and returns an exact copy of the projector.
FILE FORMAT/DEFAULTS
     Projector {
     }

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