man SoTexture2Transform (Fonctions bibliothèques) -

NAME

SoTexture2Transform -

SYNOPSIS



#include <Inventor/nodes/SoTexture2Transform.h>

Inherits SoNode.

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

Public Member Functions

virtual SoType getTypeId (void) const

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 SoType getClassTypeId (void)

static void initClass (void)

Public Attributes

SoSFVec2f translation

SoSFFloat rotation

SoSFVec2f scaleFactor

SoSFVec2f center

Protected Member Functions

virtual const SoFieldData * getFieldData (void) const

virtual ~SoTexture2Transform ()

Static Protected Member Functions

static const SoFieldData ** getFieldDataPtr (void)

Constructor & Destructor Documentation

SoTexture2Transform::SoTexture2Transform (void)

Constructor.

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

Destructor.

Member Function Documentation

SoType SoTexture2Transform::getClassTypeId (void) [static]

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

Reimplemented from SoNode.

SoType SoTexture2Transform::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 ** SoTexture2Transform::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 * SoTexture2Transform::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 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.

void SoTexture2Transform::doAction (SoAction * action) [virtual]

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

Reimplemented from SoNode.

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.

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.

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.

void SoTexture2Transform::pick (SoPickAction * action) [virtual]

Action method for SoPickAction.

Does common processing for SoPickAction action instances.

Reimplemented from SoNode.

Member Data Documentation

SoSFVec2f SoTexture2Transform::translation

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

SoSFFloat SoTexture2Transform::rotation

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

SoSFVec2f SoTexture2Transform::scaleFactor

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

SoSFVec2f SoTexture2Transform::center

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

Author

Generated automatically by Doxygen for Coin from the source code.