H3D::MatrixTransform Class Reference
[X3D node classes.]

The MatrixTransform node is a grouping node that defines a coordinate system for its children that is relative to the coordinate systems of its ancestors. More...

#include <MatrixTransform.h>

Inheritance diagram for H3D::MatrixTransform:

List of all members.

Public Types
typedef H3D::SFMatrix4f	SFMatrix4f
Public Member Functions
	MatrixTransform (Inst< MFChild > _addChildren=0, Inst< MFChild > _removeChildren=0, Inst< MFChild > _children=0, Inst< SFNode > _metadata=0, Inst< SFBound > _bound=0, Inst< SFVec3f > _bboxCenter=0, Inst< SFVec3f > _bboxSize=0, Inst< SFTransformedBound > _transformedBound=0, Inst< SFMatrix4f > _matrix=0, Inst< SFMatrix4f > _accumulatedForward=0, Inst< SFMatrix4f > _accumulatedInverse=0)
	Constructor.
virtual void	render ()
	Render the children.
Public Attributes
auto_ptr< SFMatrix4f >	matrix
	The transformation matrix.
auto_ptr< SFMatrix4f >	accumulatedForward
	The accumulated forward transform matrix.
auto_ptr< SFMatrix4f >	accumulatedInverse
	The accumulated inverse transform matrix.
auto_ptr< SFTransformedBound >	transformedBound
	This is the same as the bound field, but with the transformation applied to the bound.
Static Public Attributes
static H3DNodeDatabase	database
	The H3DNodeDatabase for this node.
Classes
class	SFTransformedBound
	SFTransformedBound maintains the routes from the owner Node's bound and matrix field to the contained TransformedBoxBound instance's boxBound and matrix field. More...

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Detailed Description

The MatrixTransform node is a grouping node that defines a coordinate system for its children that is relative to the coordinate systems of its ancestors.

The matrix field is a 4x4 matrix defining the transform matrix from the children's coordinate system to its ancestors coordinate system.

The bboxCenter and bboxSize fields specify a bounding box that encloses the children of the Transform node. This is a hint that may be used for optimization purposes. The results are undefined if the specified bounding box is smaller than the actual bounding box of the children at any time. A default bboxSize value, (-1, -1, -1), implies that the bounding box is not specified and, if needed, shall be calculated by the browser. The bounding box shall be large enough at all times to enclose the union of the group's children's bounding boxes; it shall not include any transformations performed by the group itself (i.e., the bounding box is defined in the local coordinate system of the children). The results are undefined if the specified bounding box is smaller than the true bounding box of the group.

Internal routes:

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Member Data Documentation

auto_ptr< SFMatrix4f > H3D::MatrixTransform::accumulatedForward

The accumulated forward transform matrix. Access type: inputOutput Default value: Unit matrix

auto_ptr< SFMatrix4f > H3D::MatrixTransform::accumulatedInverse

The accumulated inverse transform matrix. Access type: inputOutput Default value: Unit matrix

auto_ptr< SFMatrix4f > H3D::MatrixTransform::matrix

The transformation matrix. Access type: inputOutput Default value: Unit matrix

auto_ptr< SFTransformedBound > H3D::MatrixTransform::transformedBound

This is the same as the bound field, but with the transformation applied to the bound. Access type: outputOnly

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