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SoResetTransform.3coin2

NAME

SoResetTransform -

The SoResetTransform class is a node type which makes it possible to 'nullify' state during traversal.

SoResetTransform is useful for setting up geometry in the scene graph which will not be influenced by the transformation nodes before it during traversal.

SYNOPSIS

#include <Inventor/nodes/SoResetTransform.h>

Inherits SoTransformation.

Public Types

enum ResetType { TRANSFORM = 0x01, BBOX = 0x02 }

Public Member Functions

SoResetTransform (void)

virtual void doAction (SoAction *action)

virtual void callback (SoCallbackAction *action)

virtual void GLRender (SoGLRenderAction *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

static void initClass (void)

Public Attributes

SoSFBitMask whatToReset

Protected Member Functions

virtual ~SoResetTransform ()

Detailed Description

The SoResetTransform class is a node type which makes it possible to 'nullify' state during traversal.

SoResetTransform is useful for setting up geometry in the scene graph which will not be influenced by the transformation nodes before it during traversal.

FILE FORMAT/DEFAULTS:

     ResetTransform {
         whatToReset TRANSFORM
     }
 
 

 

Member Enumeration Documentation

enum SoResetTransform::ResetTypeThe different options for what to reset.

Enumerator:

TRANSFORM

Reset current model transformation.

BBOX

Reset current bounding box settings.

Constructor & Destructor Documentation

SoResetTransform::SoResetTransform (void)Constructor.

References BBOX, TRANSFORM, and whatToReset.

SoResetTransform::~SoResetTransform () [protected, virtual]Destructor.

Member Function Documentation

void SoResetTransform::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.

void SoResetTransform::doAction (SoAction * action) [virtual]This function performs the typical operation of a node for any action.

Reimplemented from SoNode.

References SoAction::getState(), SoField::isIgnored(), TRANSFORM, and whatToReset.

Referenced by callback(), getPrimitiveCount(), and pick().

void SoResetTransform::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.

References doAction().

void SoResetTransform::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.

References SoAction::getState(), SoField::isIgnored(), TRANSFORM, and whatToReset.

void SoResetTransform::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.

References BBOX, SoAction::getState(), SoGetBoundingBoxAction::getXfBoundingBox(), SoField::isIgnored(), SbBox3f::makeEmpty(), SoGetBoundingBoxAction::resetCenter(), TRANSFORM, and whatToReset.

void SoResetTransform::getMatrix (SoGetMatrixAction * action) [virtual]Action method for SoGetMatrixAction.

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

Reimplemented from SoNode.

References SoGetMatrixAction::getInverse(), SoGetMatrixAction::getMatrix(), SoField::isIgnored(), SbMatrix::makeIdentity(), TRANSFORM, and whatToReset.

void SoResetTransform::pick (SoPickAction * action) [virtual]Action method for SoPickAction.

Does common processing for SoPickAction action instances.

Reimplemented from SoNode.

References doAction().

void SoResetTransform::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.

References doAction().

Member Data Documentation

SoSFBitMask SoResetTransform::whatToResetWhat this node instance should reset in the state when met during traversal. Default value is SoResetTransform::TRANSFORM.

Referenced by doAction(), getBoundingBox(), getMatrix(), GLRender(), and SoResetTransform().

Author

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