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SoResetTransform Class Reference

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. More...

#include <Inventor/nodes/SoResetTransform.h>

Inheritance diagram for SoResetTransform:
SoTransformation SoNode SoFieldContainer SoBase

List of all members.

Public Types

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

Public Member Functions

virtual SoType getTypeId (void) const
 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 SoType getClassTypeId (void)
static void initClass (void)

Public Attributes

SoSFBitMask whatToReset

Protected Member Functions

virtual const SoFieldDatagetFieldData (void) const
virtual ~SoResetTransform ()
- Protected Member Functions inherited from SoTransformation
 SoTransformation (void)
virtual ~SoTransformation ()
- Protected Member Functions inherited from SoNode
 SoNode (void)
virtual ~SoNode ()
virtual SbBool readInstance (SoInput *in, unsigned short flags)
- Protected Member Functions inherited from SoFieldContainer
 SoFieldContainer (void)
 ~SoFieldContainer ()
- Protected Member Functions inherited from SoBase
 SoBase (void)
virtual ~SoBase ()
virtual void destroy (void)
SbBool hasMultipleWriteRefs (void) const
SbBool writeHeader (SoOutput *out, SbBool isgroup, SbBool isengine) const
void writeFooter (SoOutput *out) const
virtual const char * getFileFormatName (void) const

Static Protected Member Functions

static const SoFieldData ** getFieldDataPtr (void)

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 {
}

Member Enumeration Documentation

The 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 ( )
protectedvirtual

Destructor.


Member Function Documentation

SoType SoResetTransform::getClassTypeId ( void  )
static

This static method returns the SoType object associated with objects of this class.

Reimplemented from SoTransformation.

SoType SoResetTransform::getTypeId ( void  ) const
virtual

Returns the type identification of an object derived from a class inheriting SoBase. This is used for run-time type checking and "downward" casting.

Usage example:

void foo(SoNode * node)
{
if (node->getTypeId() == SoFile::getClassTypeId()) {
SoFile * filenode = (SoFile *)node; // safe downward cast, knows the type
}
else if (node->getTypeId().isOfType(SoGroup::getClassTypeId())) {
SoGroup * group = (SoGroup *)node; // safe downward cast, knows the type
}
}

For application programmers wanting to extend the library with new nodes, engines, nodekits, draggers or others: this method needs to be overridden in all subclasses. This is typically done as part of setting up the full type system for extension classes, which is usually accomplished by using the pre-defined macros available through for instance Inventor/nodes/SoSubNode.h (SO_NODE_INIT_CLASS and SO_NODE_CONSTRUCTOR for node classes), Inventor/engines/SoSubEngine.h (for engine classes) and so on.

For more information on writing Coin extensions, see the class documentation of the toplevel superclasses for the various class groups.

Reimplemented from SoTransformation.

const SoFieldData ** SoResetTransform::getFieldDataPtr ( void  )
staticprotected

This API member is considered internal to the library, as it is not likely to be of interest to the application programmer.

Reimplemented from SoTransformation.

const SoFieldData * SoResetTransform::getFieldData ( void  ) const
protectedvirtual

Returns a pointer to the class-wide field data storage object for this instance. If no fields are present, returns NULL.

Reimplemented from SoTransformation.

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::whatToReset

What 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().


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

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