OpenSceneGraph 2.8.4
Public Member Functions | Protected Member Functions | Protected Attributes
osgManipulator::Projector Class Reference

Base class for Projectors. More...

Inheritance diagram for osgManipulator::Projector:
Inheritance graph
[legend]

List of all members.

Public Member Functions

 Projector ()
virtual bool project (const PointerInfo &pi, osg::Vec3d &projectedPoint) const =0
 Calculates the object/world coordinates (projectedPoint) of a window coordinate (pointToProject) when projected onto some shape or geometry (implemented in derived classes).
void setLocalToWorld (const osg::Matrix &localToWorld)
 Sets the matrix for transforming the projector's local coordinate system to the world/object coordinate system.
const osg::MatrixgetLocalToWorld () const
 Gets the matrix for transforming the projector's local coordinate system to the world/object coordinate system.
const osg::MatrixgetWorldToLocal () const
 Gets the matrix for transforming the world/object coordinate system to the command's local coordinate system.

Protected Member Functions

virtual ~Projector ()

Protected Attributes

osg::Matrix _localToWorld
osg::Matrix _worldToLocal
bool _worldToLocalDirty

Detailed Description

Base class for Projectors.

Projectors maps 2D cursor motions to 3D motions.


Constructor & Destructor Documentation

osgManipulator::Projector::Projector ( )
virtual osgManipulator::Projector::~Projector ( ) [protected, virtual]

Member Function Documentation

const osg::Matrix& osgManipulator::Projector::getLocalToWorld ( ) const [inline]

Gets the matrix for transforming the projector's local coordinate system to the world/object coordinate system.

const osg::Matrix& osgManipulator::Projector::getWorldToLocal ( ) const [inline]

Gets the matrix for transforming the world/object coordinate system to the command's local coordinate system.

References osg::Matrixd::invert().

virtual bool osgManipulator::Projector::project ( const PointerInfo pi,
osg::Vec3d projectedPoint 
) const [pure virtual]

Calculates the object/world coordinates (projectedPoint) of a window coordinate (pointToProject) when projected onto some shape or geometry (implemented in derived classes).

SceneView in used for i projecting window coordinates into object coordinates and vice versa. Returns true on successful projection.

Implemented in osgManipulator::LineProjector, osgManipulator::PlaneProjector, osgManipulator::SphereProjector, osgManipulator::SpherePlaneProjector, osgManipulator::CylinderProjector, and osgManipulator::CylinderPlaneProjector.

void osgManipulator::Projector::setLocalToWorld ( const osg::Matrix localToWorld) [inline]

Sets the matrix for transforming the projector's local coordinate system to the world/object coordinate system.


Member Data Documentation


The documentation for this class was generated from the following file:

osg logo
Generated at Sun Jan 8 2012 13:16:45 for the OpenSceneGraph by doxygen 1.7.4.