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SoTexture2Transform.3coin2

NAME

SoTexture2Transform -

The SoTexture2Transform class is used to define 2D texture transformations.

Textures 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.

SYNOPSIS

#include <Inventor/nodes/SoTexture2Transform.h>

Inherits SoNode.

Public Member Functions

SoTexture2Transform (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 void initClass (void)

Public Attributes

SoSFVec2f translation

SoSFFloat rotation

SoSFVec2f scaleFactor

SoSFVec2f center

Protected Member Functions

virtual ~SoTexture2Transform ()

Detailed Description

The SoTexture2Transform class is used to define 2D texture transformations.

Textures 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:

     Texture2Transform {
         translation 0 0
         rotation 0
         scaleFactor 1 1
         center 0 0
     }
 
 

See also:

SoTexture3Transform

Constructor & Destructor Documentation

SoTexture2Transform::SoTexture2Transform (void)Constructor.

References center, rotation, scaleFactor, and translation.

SoTexture2Transform::~SoTexture2Transform () [protected, virtual]Destructor.

Member Function Documentation

void SoTexture2Transform::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.

References SoNode::VRML1.

void SoTexture2Transform::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 SoTexture2Transform::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 SoTexture2Transform::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(), SoFieldContainer::get(), and SoAction::getState().

void SoTexture2Transform::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::getTextureInverse(), SoGetMatrixAction::getTextureMatrix(), SbMatrix::inverse(), SbMatrix::multLeft(), and SbMatrix::multRight().

void SoTexture2Transform::pick (SoPickAction * action) [virtual]Action method for SoPickAction.

Does common processing for SoPickAction action instances.

Reimplemented from SoNode.

References doAction().

Member Data Documentation

SoSFVec2f SoTexture2Transform::translationTexture coordinate translation. Default value is [0, 0].

Referenced by SoTexture2Transform().

SoSFFloat SoTexture2Transform::rotationTexture coordinate rotation (around z-axis, s is x-axis and t is y-axis). Defaults to an identity rotation (ie zero rotation).

Referenced by SoTexture2Transform().

SoSFVec2f SoTexture2Transform::scaleFactorTexture coordinate scale factors. Default value is [1, 1].

Referenced by SoTexture2Transform().

SoSFVec2f SoTexture2Transform::centerCenter for scale and rotation. Default value is [0, 0].

Referenced by SoTexture2Transform().

Author

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