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SoBumpMapTransform Class Reference
[Nodes]

The SoBumpMapTransform class is used to define 2D bump map transformations.

Bump maps applied to shapes in the scene can be transformed by "prefixing" in the state with instances of this node type. Translations, rotations and scaling in 2D can all be done. More...

#include <Inventor/nodes/SoBumpMapTransform.h>

Inheritance diagram for SoBumpMapTransform:

SoNode SoFieldContainer SoBase

List of all members.

Public Member Functions

virtual SoType getTypeId (void) const
 SoBumpMapTransform (void)
virtual void doAction (SoAction *action)
virtual void callback (SoCallbackAction *action)
virtual void GLRender (SoGLRenderAction *action)
virtual void getMatrix (SoGetMatrixAction *action)
virtual void pick (SoPickAction *action)

Static Public Member Functions

static SoType getClassTypeId (void)
static void initClass (void)

Public Attributes

SoSFVec2f translation
SoSFFloat rotation
SoSFVec2f scaleFactor
SoSFVec2f center

Protected Member Functions

virtual const SoFieldDatagetFieldData (void) const
virtual ~SoBumpMapTransform ()

Static Protected Member Functions

static const SoFieldData ** getFieldDataPtr (void)


Detailed Description

The SoBumpMapTransform class is used to define 2D bump map transformations.

Bump maps applied to shapes in the scene can be transformed by "prefixing" in the state with instances of this node type. Translations, rotations and scaling in 2D can all be done.

The default settings of this node's fields equals a "null transform", ie no transformation.

FILE FORMAT/DEFAULTS:

    BumpMapTransform {
        translation 0 0
        rotation 0
        scaleFactor 1 1
        center 0 0
    }

Since:
Coin 2.2

Constructor & Destructor Documentation

SoBumpMapTransform::SoBumpMapTransform ( void   ) 

Constructor.

References center, rotation, scaleFactor, and translation.

SoBumpMapTransform::~SoBumpMapTransform (  )  [protected, virtual]

Destructor.


Member Function Documentation

SoType SoBumpMapTransform::getClassTypeId ( void   )  [static]

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

Reimplemented from SoNode.

SoType SoBumpMapTransform::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.

Implements SoBase.

const SoFieldData ** SoBumpMapTransform::getFieldDataPtr ( void   )  [static, protected]

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

Reimplemented from SoNode.

const SoFieldData * SoBumpMapTransform::getFieldData ( void   )  const [protected, virtual]

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

Reimplemented from SoFieldContainer.

void SoBumpMapTransform::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 SoNode.

void SoBumpMapTransform::doAction ( SoAction action  )  [virtual]

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

Reimplemented from SoNode.

References SoAction::getState().

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

void SoBumpMapTransform::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 SoBumpMapTransform::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 doAction().

void SoBumpMapTransform::getMatrix ( SoGetMatrixAction action  )  [virtual]

Action method for SoGetMatrixAction.

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

Reimplemented from SoNode.

void SoBumpMapTransform::pick ( SoPickAction action  )  [virtual]

Action method for SoPickAction.

Does common processing for SoPickAction action instances.

Reimplemented from SoNode.

References doAction().


Member Data Documentation

Texture coordinate translation. Default value is [0, 0].

Referenced by SoBumpMapTransform().

Texture coordinate rotation (around z-axis, s is x-axis and t is y-axis). Defaults to an identity rotation (ie zero rotation).

Referenced by SoBumpMapTransform().

Texture coordinate scale factors. Default value is [1, 1].

Referenced by SoBumpMapTransform().

Center for scale and rotation. Default value is [0, 0].

Referenced by SoBumpMapTransform().


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

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Generated on Mon Feb 23 16:33:44 2009 for Coin by Doxygen. 1.5.8