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SoVRMLTextureTransform(3) | Coin | SoVRMLTextureTransform(3) |
NAME¶
SoVRMLTextureTransform - The SoVRMLTextureTransform class defines a transformation applied to texture coordinates. The detailed class documentation is taken verbatim from the VRML97 standard (ISO/IEC 14772-1:1997). It is copyright The Web3D Consortium, and is used by permission of the Consortium:SYNOPSIS¶
#include <Inventor/VRMLnodes/SoVRMLTextureTransform.h> Inherits SoNode.Public Member Functions¶
virtual SoType getTypeId (void) const
Static Public Member Functions¶
static SoType getClassTypeId (void)
Public Attributes¶
SoSFVec2f translation
Protected Member Functions¶
virtual const SoFieldData * getFieldData (void) const
Static Protected Member Functions¶
static const SoFieldData ** getFieldDataPtr (void)
Additional Inherited Members¶
Detailed Description¶
The SoVRMLTextureTransform class defines a transformation applied to texture coordinates. The detailed class documentation is taken verbatim from the VRML97 standard (ISO/IEC 14772-1:1997). It is copyright The Web3D Consortium, and is used by permission of the Consortium:TextureTransform { exposedField SFVec2f center 0 0 # (-inf, inf) exposedField SFFloat rotation 0 # (-inf, inf) exposedField SFVec2f scale 1 1 # (-inf, inf) exposedField SFVec2f translation 0 0 # (-inf, inf) }The TextureTransform node defines a 2D transformation that is applied to texture coordinates (see SoVRMLTextureCoordinate). This node affects the way textures coordinates are applied to the geometric surface. The transformation consists of (in order):
- •
- a translation;
- •
- a rotation about the centre point;
- •
- a non-uniform scale about the centre point.
Tc' = -C × S × R × C × T × TcNote that this transformation order is the reverse of the Transform node transformation order since the texture coordinates, not the texture, are being transformed (i.e., the texture coordinate system).
Constructor & Destructor Documentation¶
SoVRMLTextureTransform::SoVRMLTextureTransform (void)¶
Constructor.SoVRMLTextureTransform::~SoVRMLTextureTransform () [protected], [virtual]¶
Destructor.Member Function Documentation¶
SoType SoVRMLTextureTransform::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 } }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 ** SoVRMLTextureTransform::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 * SoVRMLTextureTransform::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 SoVRMLTextureTransform::doAction (SoAction *action) [virtual]¶
This function performs the typical operation of a node for any action. Reimplemented from SoNode.void SoVRMLTextureTransform::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 SoVRMLTextureTransform::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 SoVRMLTextureTransform::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 SoVRMLTextureTransform::pick (SoPickAction *action) [virtual]¶
Action method for SoPickAction. Does common processing for SoPickAction action instances. Reimplemented from SoNode.Member Data Documentation¶
SoSFVec2f SoVRMLTextureTransform::translation¶
Translation value. Default values is (0, 0, 0).SoSFFloat SoVRMLTextureTransform::rotation¶
Rotation, in radians, around the centre points. Default value is 0.SoSFVec2f SoVRMLTextureTransform::scale¶
Scale vector about the centre point. Default value is (1, 1).SoSFVec2f SoVRMLTextureTransform::center¶
Texture centre. Default value is (0.0, 0.0).Author¶
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