SoVRMLTextureCoordinate - Online Linux Manual PageSection : 3
Updated : Mon Jan 25 2021
Source : Version 2.5.0
Note : Coin
NAMESoVRMLTextureCoordinate − The SoVRMLTextureCoordinate class binds texture coordinates to vertex-based geometry​.
SYNOPSIS
#include <Inventor/VRMLnodes/SoVRMLTextureCoordinate​.h> Inherits SoNode​.
Public Member Functionsvirtual SoType getTypeId (void) const
SoVRMLTextureCoordinate (void)
virtual void doAction (SoAction *action)
virtual void callback (SoCallbackAction *action)
virtual void GLRender (SoGLRenderAction *action)
virtual void pick (SoPickAction *action)
virtual void getPrimitiveCount (SoGetPrimitiveCountAction *action)
Static Public Member Functionsstatic SoType getClassTypeId (void)
static void initClass (void)
Public AttributesSoMFVec2f point
Protected Member Functionsvirtual const SoFieldData * getFieldData (void) const
virtual ~SoVRMLTextureCoordinate ()
Static Protected Member Functionsstatic const SoFieldData ** getFieldDataPtr (void)
Additional Inherited Members
Detailed DescriptionThe SoVRMLTextureCoordinate class binds texture coordinates to vertex-based geometry​. 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:

TextureCoordinate { exposedField MFVec2f point [] # (-inf, inf) }
The TextureCoordinate node specifies a set of 2D texture coordinates used by vertex-based geometry nodes (e​.g​., SoVRMLIndexedFaceSet and SoVRMLElevationGrid) to map textures to vertices​. Textures are two dimensional colour functions that, given an (s, t) coordinate, return a colour value colour(s, t)​. Texture map values (SoVRMLImageTexture, SoVRMLMovieTexture, and SoVRMLPixelTexture) range from [0​.0, 1​.0] along the S-axis and T-axis​. However, TextureCoordinate values, specified by the point field, may be in the range (-inf,inf)​. Texture coordinates identify a location (and thus a colour value) in the texture map​. The horizontal coordinate s is specified first, followed by the vertical coordinate t​. If the texture map is repeated in a given direction (S-axis or T-axis), a texture coordinate C (s or t) is mapped into a texture map that has N pixels in the given direction as follows: Texture map location = (C - floor(C)) × N If the texture map is not repeated, the texture coordinates are clamped to the 0​.0 to 1​.0 range as follows: Texture map location = N, if C > 1.0, = 0.0, if C < 0.0, = C × N, if 0.0 <= C <= 1.0.Details on repeating textures are specific to texture map node types described in SoVRMLImageTexture, SoVRMLMovieTexture, and SoVRMLPixelTexture​.
Constructor & Destructor Documentation
SoVRMLTextureCoordinate::SoVRMLTextureCoordinate (void)Constructor​. References point​.
SoVRMLTextureCoordinate::~SoVRMLTextureCoordinate () [protected], [virtual]Destructor​.
Member Function Documentation
SoType SoVRMLTextureCoordinate::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 * SoVRMLTextureCoordinate::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 SoVRMLTextureCoordinate::doAction (SoAction * action) [virtual]This function performs the typical operation of a node for any action​. Reimplemented from SoNode​. References SoMField::getNum(), SoAction::getState(), SoMFVec2f::getValues(), and point​. Referenced by callback(), getPrimitiveCount(), GLRender(), and pick()​.
void SoVRMLTextureCoordinate::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 SoVRMLTextureCoordinate::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(), SoMField::getNum(), SoAction::getState(), SoMFVec2f::getValues(), point, SoBase::staticDataLock(), and SoBase::staticDataUnlock()​.
void SoVRMLTextureCoordinate::pick (SoPickAction * action) [virtual]Action method for SoPickAction​. Does common processing for SoPickAction action instances​. Reimplemented from SoNode​. References doAction()​.
void SoVRMLTextureCoordinate::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
SoMFVec2f SoVRMLTextureCoordinate::pointThe texture coordinates​. Empty by default​. Referenced by doAction(), SoVRMLElevationGrid::generatePrimitives(), SoVRMLElevationGrid::GLRender(), GLRender(), and SoVRMLTextureCoordinate()​.
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