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SoTransform Class Reference
[Nodes]

The SoTransform class is the "all-purpose" transformation node type. More...

#include <Inventor/nodes/SoTransform.h>

Inheritance diagram for SoTransform:

SoTransformation SoNode SoFieldContainer SoBase SoTransformManip SoCenterballManip SoHandleBoxManip SoJackManip SoTabBoxManip SoTrackballManip SoTransformBoxManip SoTransformerManip List of all members.

Public Member Functions

 SoTransform (void)
void pointAt (const SbVec3f &frompoint, const SbVec3f &topoint)
void getScaleSpaceMatrix (SbMatrix &mat, SbMatrix &inv) const
void getRotationSpaceMatrix (SbMatrix &mat, SbMatrix &inv) const
void getTranslationSpaceMatrix (SbMatrix &mat, SbMatrix &inv) const
void multLeft (const SbMatrix &mat)
void multRight (const SbMatrix &mat)
void combineLeft (SoTransformation *nodeonright)
void combineRight (SoTransformation *nodeonleft)
void setMatrix (const SbMatrix &mat)
void recenter (const SbVec3f &newcenter)
virtual void doAction (SoAction *action)
virtual void GLRender (SoGLRenderAction *action)
virtual void callback (SoCallbackAction *action)
virtual void getBoundingBox (SoGetBoundingBoxAction *action)
virtual void getMatrix (SoGetMatrixAction *action)
virtual void pick (SoPickAction *action)
virtual void getPrimitiveCount (SoGetPrimitiveCountAction *action)

Static Public Member Functions

void initClass (void)

Public Attributes

SoSFVec3f translation
SoSFRotation rotation
SoSFVec3f scaleFactor
SoSFRotation scaleOrientation
SoSFVec3f center

Protected Member Functions

virtual ~SoTransform ()

Detailed Description

The SoTransform class is the "all-purpose" transformation node type.

Like SoMatrixTransform, nodes of this type gives the application programmer maximum flexibility when specifying geometry transformations in a scene graph. If you want to set and keep the various components of the transformation matrix in separate entities, this node type is preferable, though.

The order of operations is: first scaling is done, then rotation, then translation.


Constructor & Destructor Documentation

SoTransform::SoTransform void   ) 
 

Constructor.

SoTransform::~SoTransform  )  [protected, virtual]
 

Destructor.


Member Function Documentation

void SoTransform::initClass void   )  [static]
 

Sets up initialization for data common to all instances of this class, like submitting necessary information to the Coin type system.

Reimplemented from SoTransformation.

Reimplemented in SoCenterballManip, SoHandleBoxManip, SoJackManip, SoTabBoxManip, SoTrackballManip, SoTransformBoxManip, SoTransformManip, and SoTransformerManip.

void SoTransform::pointAt const SbVec3f frompoint,
const SbVec3f topoint
 

Sets the transformation to translate to frompoint, with a rotation so that the (0,0,-1) vector is rotated into the vector from frompoint to topoint.

void SoTransform::getScaleSpaceMatrix SbMatrix mat,
SbMatrix inv
const
 

Calculates the matrices to/from scale space.

void SoTransform::getRotationSpaceMatrix SbMatrix mat,
SbMatrix inv
const
 

Calculates the matrices to/from rotation space.

void SoTransform::getTranslationSpaceMatrix SbMatrix mat,
SbMatrix inv
const
 

Calculates the matrices to/from translation space.

void SoTransform::multLeft const SbMatrix mat  ) 
 

Premultiplies this transformation by mat.

void SoTransform::multRight const SbMatrix mat  ) 
 

Postmultiplies this transformation by mat.

void SoTransform::combineLeft SoTransformation nodeonright  ) 
 

Premultiplies this transformation by the transformation in nodeonright.

void SoTransform::combineRight SoTransformation nodeonleft  ) 
 

Postmultiplies this transformation by the transformation in nodeonleft.

void SoTransform::setMatrix const SbMatrix mat  ) 
 

Sets the fields to create a transformation equal to mat.

void SoTransform::recenter const SbVec3f newcenter  ) 
 

Sets the center field to newcenter. This might affect one or more of the other fields.

void SoTransform::doAction SoAction action  )  [virtual]
 

This function performs the typical operation of a node for any action.

Reimplemented from SoNode.

Reimplemented in SoTransformManip.

void SoTransform::GLRender SoGLRenderAction action  )  [virtual]
 

Action method for the SoGLRenderAction.

This is called during rendering traversals. Nodes influencing the rendering state in any way or who wants to throw geometry primitives at OpenGL overrides this method.

Reimplemented from SoNode.

Reimplemented in SoTransformManip.

void SoTransform::callback SoCallbackAction action  )  [virtual]
 

Action method for SoCallbackAction.

Simply updates the state according to how the node behaves for the render action, so the application programmer can use the SoCallbackAction for extracting information about the scene graph.

Reimplemented from SoNode.

Reimplemented in SoTransformManip.

void SoTransform::getBoundingBox SoGetBoundingBoxAction action  )  [virtual]
 

Action method for the SoGetBoundingBoxAction.

Calculates bounding box and center coordinates for node and modifies the values of the action to encompass the bounding box for this node and to shift the center point for the scene more towards the one for this node.

Nodes influencing how geometry nodes calculates their bounding box also overrides this method to change the relevant state variables.

Reimplemented from SoNode.

Reimplemented in SoTransformManip.

void SoTransform::getMatrix SoGetMatrixAction action  )  [virtual]
 

Action method for SoGetMatrixAction.

Updates action by accumulating with the transformation matrix of this node (if any).

Reimplemented from SoNode.

Reimplemented in SoTransformManip.

void SoTransform::pick SoPickAction action  )  [virtual]
 

Action method for SoPickAction.

Does common processing for SoPickAction action instances.

Reimplemented from SoNode.

Reimplemented in SoTransformManip.

void SoTransform::getPrimitiveCount SoGetPrimitiveCountAction action  )  [virtual]
 

Action method for the SoGetPrimitiveCountAction.

Calculates the number of triangle, line segment and point primitives for the node and adds these to the counters of the action.

Nodes influencing how geometry nodes calculates their primitive count also overrides this method to change the relevant state variables.

Reimplemented from SoNode.


Member Data Documentation

SoSFVec3f SoTransform::translation
 

The translation part of the transformation.

SoSFRotation SoTransform::rotation
 

The rotation part of the transformation.

SoSFVec3f SoTransform::scaleFactor
 

The scaling part of the transformation.

SoSFRotation SoTransform::scaleOrientation
 

The orientation the object is set to before scaling.

SoSFVec3f SoTransform::center
 

The center point for the rotation.


The documentation for this class was generated from the following files:
Generated on Tue Jul 27 23:53:08 2004 for Coin by doxygen 1.3.7