projector classes(3)

NAME

Projector classes (mostly for internal use)

Detailed Description

Classes

class SbCylinderPlaneProjector

The SbCylinderPlaneProjector class projects 2D points to a halfcylinder and a plane.

This projector uses a plane along with the half-cylinder of
SbCylinderSectionProjector for projections. If the 2D point mapping 'misses' the cylinder section, the 3D point will be projected onto the plane. "

class SbCylinderProjector

The SbCylinderProjector class is the abstract base class for mapping to cylindrical surfaces.

The cylinder projectors map 2D points to various surface types based on cylindrical shapes. "

class SbCylinderSectionProjector

The SbCylinderSectionProjector projects 2D points to a sliced cylinder.

The projection cylinder for this class is sliced by a clipping plane
parallel to its height axis. Projections will be mapped to the
remaining cylinder part. "

class SbCylinderSheetProjector

The SbCylinderSheetProjector class projects 2D points to 3D points on a sheet covering a cylindrical shape.

class SbLineProjector

The SbLineProjector class projects 2D points to 3D points along a line.

The 3D projection of the 2D coordinates is for this projector class
constrained to lie along a pre-defined line. "

class SbPlaneProjector

The SbPlaneProjector class projects 2D points to 3D points in a plane.

The 3D projection of the 2D coordinates is for this projector class
constrained to lie inside a pre-defined 3D plane. "

class SbProjector

The SbProjector class is the abstract base projector class.

Projectors are used in the Coin library for mapping 2D coordinates
(typically from the position of the mouse cursor in the rendering
window) to 3D 'world' coordinates. "

class SbSpherePlaneProjector

The SbSpherePlaneProjector class projects 2D points to a half-sphere and a plane.

This projector uses a plane along with the half-sphere of
SbSphereSectionProjector for projections. If the 2D point mapping 'misses' the sphere section, the 3D point will be projected onto the
plane. "

class SbSphereProjector

The SbSphereProjector class is the abstract base class for mapping to spherical surfaces.

The sphere projectors map 2D points to various surface types based on
spherical shapes. "

class SbSphereSectionProjector

The SbSphereSectionProjector projects 2D points to a sliced sphere.

The projection sphere for this class is sliced by a clipping plane.
Projections will be mapped to the remaining sphere part. "

class SbSphereSheetProjector

The SbSphereSheetProjector class projects 2D points to 3D points on a sheet covering a spherical shape.

The following stand-alone example shows how screen space coordinates
projects into 3D when mapped with an SbSphereSheetProjector. It outputs the resulting projections as an SoPointSet in a Inventor-file on stdout:. "