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SoTextureCoordinate2 Class Reference

The SoTextureCoordinate2 class contains a set of coordinates for the mapping of 2D textures. More...

#include <Inventor/nodes/SoTextureCoordinate2.h>

Inheritance diagram for SoTextureCoordinate2:
SoNode SoFieldContainer SoBase

Public Member Functions

virtual SoType getTypeId (void) const
 Returns the type identification of an object derived from a class inheriting SoBase. This is used for runtime type checking and "downward" casting. More...
 
 SoTextureCoordinate2 (void)
 
virtual void doAction (SoAction *action)
 
virtual void GLRender (SoGLRenderAction *action)
 
virtual void callback (SoCallbackAction *action)
 
virtual void pick (SoPickAction *action)
 
- Public Member Functions inherited from SoNode
void setOverride (const SbBool state)
 
SbBool isOverride (void) const
 
void setNodeType (const NodeType type)
 
NodeType getNodeType (void) const
 
virtual SoNodecopy (SbBool copyconnections=FALSE) const
 
virtual SbBool affectsState (void) const
 
virtual void GLRenderBelowPath (SoGLRenderAction *action)
 
virtual void GLRenderInPath (SoGLRenderAction *action)
 
virtual void GLRenderOffPath (SoGLRenderAction *action)
 
virtual void getBoundingBox (SoGetBoundingBoxAction *action)
 
virtual void getMatrix (SoGetMatrixAction *action)
 
virtual void handleEvent (SoHandleEventAction *action)
 
virtual void rayPick (SoRayPickAction *action)
 
virtual void search (SoSearchAction *action)
 
virtual void write (SoWriteAction *action)
 
virtual void audioRender (SoAudioRenderAction *action)
 
virtual void getPrimitiveCount (SoGetPrimitiveCountAction *action)
 
virtual void grabEventsSetup (void)
 
virtual void grabEventsCleanup (void)
 
virtual void startNotify (void)
 
virtual void notify (SoNotList *l)
 
SbUniqueId getNodeId (void) const
 
virtual SoChildListgetChildren (void) const
 
virtual void writeInstance (SoOutput *out)
 
virtual SoNodeaddToCopyDict (void) const
 
virtual void copyContents (const SoFieldContainer *from, SbBool copyconnections)
 
virtual SoFieldContainercopyThroughConnection (void) const
 
- Public Member Functions inherited from SoFieldContainer
void setToDefaults (void)
 
SbBool hasDefaultValues (void) const
 
SbBool fieldsAreEqual (const SoFieldContainer *container) const
 
void copyFieldValues (const SoFieldContainer *container, SbBool copyconnections=FALSE)
 
SbBool set (const char *const fielddata)
 
void get (SbString &fielddata)
 
virtual int getFields (SoFieldList &l) const
 
virtual int getAllFields (SoFieldList &l) const
 
virtual SoFieldgetField (const SbName &name) const
 
virtual SoFieldgetEventIn (const SbName &name) const
 
virtual SoFieldgetEventOut (const SbName &name) const
 
SbBool getFieldName (const SoField *const field, SbName &name) const
 
SbBool enableNotify (const SbBool flag)
 
SbBool isNotifyEnabled (void) const
 
SbBool set (const char *fielddata, SoInput *input)
 
void get (SbString &fielddata, SoOutput *out)
 
virtual SbBool validateNewFieldValue (SoField *field, void *newval)
 
virtual void addWriteReference (SoOutput *out, SbBool isfromfield=FALSE)
 
SbBool getIsBuiltIn (void) const
 
virtual void getFieldsMemorySize (size_t &managed, size_t &unmanaged) const
 
void setUserData (void *userdata) const
 
void * getUserData (void) const
 
- Public Member Functions inherited from SoBase
void ref (void) const
 
void unref (void) const
 
void unrefNoDelete (void) const
 
int32_t getRefCount (void) const
 
void touch (void)
 
SbBool isOfType (SoType type) const
 Returns TRUE if the type of this object is either of the same type or inherited from type. More...
 
virtual SbName getName (void) const
 
virtual void setName (const SbName &newname)
 
void addAuditor (void *const auditor, const SoNotRec::Type type)
 
void removeAuditor (void *const auditor, const SoNotRec::Type type)
 
const SoAuditorListgetAuditors (void) const
 
SbBool shouldWrite (void)
 
void assertAlive (void) const
 

Static Public Member Functions

static SoType getClassTypeId (void)
 
static void initClass (void)
 
- Static Public Member Functions inherited from SoNode
static uint32_t getCompatibilityTypes (const SoType &nodetype)
 
static SoType getClassTypeId (void)
 
static SoNodegetByName (const SbName &name)
 
static int getByName (const SbName &name, SoNodeList &l)
 
static void initClass (void)
 
static void initClasses (void)
 
static SbUniqueId getNextNodeId (void)
 
static int getActionMethodIndex (const SoType type)
 
static void getBoundingBoxS (SoAction *action, SoNode *node)
 
static void GLRenderS (SoAction *action, SoNode *node)
 
static void callbackS (SoAction *action, SoNode *node)
 
static void getMatrixS (SoAction *action, SoNode *node)
 
static void handleEventS (SoAction *action, SoNode *node)
 
static void pickS (SoAction *action, SoNode *node)
 
static void rayPickS (SoAction *action, SoNode *node)
 
static void searchS (SoAction *action, SoNode *node)
 
static void writeS (SoAction *action, SoNode *node)
 
static void audioRenderS (SoAction *action, SoNode *node)
 
static void getPrimitiveCountS (SoAction *action, SoNode *node)
 
- Static Public Member Functions inherited from SoFieldContainer
static void initClass (void)
 
static SoType getClassTypeId (void)
 
static void cleanupClass (void)
 
static void initCopyDict (void)
 
static void addCopy (const SoFieldContainer *orig, const SoFieldContainer *copy)
 
static SoFieldContainercheckCopy (const SoFieldContainer *orig)
 
static SoFieldContainerfindCopy (const SoFieldContainer *orig, const SbBool copyconnections)
 
static void copyDone (void)
 
- Static Public Member Functions inherited from SoBase
static void initClass (void)
 Sets up initialization for data common to all instances of this class, like submitting necessary information to the Coin type system.
 
static SoType getClassTypeId (void)
 This static method returns the SoType object associated with objects of this class.
 
static void addName (SoBase *const base, const char *const name)
 
static void removeName (SoBase *const base, const char *const name)
 
static void incrementCurrentWriteCounter (void)
 
static void decrementCurrentWriteCounter (void)
 
static SoBasegetNamedBase (const SbName &name, SoType type)
 
static int getNamedBases (const SbName &name, SoBaseList &baselist, SoType type)
 
static SbBool read (SoInput *input, SoBase *&base, SoType expectedtype)
 
static void setInstancePrefix (const SbString &c)
 
static void setTraceRefs (SbBool trace)
 
static SbBool getTraceRefs (void)
 
static SbBool connectRoute (SoInput *input, const SbName &fromnodename, const SbName &fromfieldname, const SbName &tonodename, const SbName &tofieldname)
 
static SbBool readRoute (SoInput *input)
 

Public Attributes

SoMFVec2f point
 

Protected Member Functions

virtual const SoFieldDatagetFieldData (void) const
 
virtual ~SoTextureCoordinate2 ()
 
- Protected Member Functions inherited from SoNode
 SoNode (void)
 
virtual ~SoNode ()
 
virtual SbBool readInstance (SoInput *in, unsigned short flags)
 
- Protected Member Functions inherited from SoFieldContainer
 SoFieldContainer (void)
 
virtual ~SoFieldContainer ()
 
- Protected Member Functions inherited from SoBase
 SoBase (void)
 
virtual ~SoBase ()
 
virtual void destroy (void)
 
SbBool hasMultipleWriteRefs (void) const
 
SbBool writeHeader (SoOutput *out, SbBool isgroup, SbBool isengine) const
 
void writeFooter (SoOutput *out) const
 
virtual const char * getFileFormatName (void) const
 
virtual SoNotRec createNotRec (void)
 

Static Protected Member Functions

static const SoFieldData ** getFieldDataPtr (void)
 
- Static Protected Member Functions inherited from SoNode
static const SoFieldData ** getFieldDataPtr (void)
 
static void setNextActionMethodIndex (int index)
 
static int getNextActionMethodIndex (void)
 
static void incNextActionMethodIndex (void)
 
static void setCompatibilityTypes (const SoType &nodetype, const uint32_t bitmask)
 
- Static Protected Member Functions inherited from SoBase
static uint32_t getCurrentWriteCounter (void)
 
static void staticDataLock (void)
 
static void staticDataUnlock (void)
 

Additional Inherited Members

- Public Types inherited from SoNode
enum  NodeType {
  INVENTOR = 0x0000, VRML1 = 0x0001, VRML2 = 0x0002, INVENTOR_1 = 0x0004,
  INVENTOR_2_0 = 0x0008, INVENTOR_2_1 = 0x0010, INVENTOR_2_5 = 0x0020, INVENTOR_2_6 = 0x0040,
  COIN_1_0 = 0x0080, COIN_2_0 = 0x0100, EXTENSION = 0x0200, COIN_2_2 = 0x0400,
  COIN_2_3 = 0x0800, COIN_2_4 = 0x1000, INVENTOR_5_0 = 0x2000, COIN_2_5 = 0x4000,
  COIN_3_0 = 0x8000, INVENTOR_6_0 = 0x10000, COIN_4_0 = 0x20000
}
 
- Protected Types inherited from SoBase
enum  BaseFlags { IS_ENGINE = 0x01, IS_GROUP = 0x02 }
 
- Protected Attributes inherited from SoNode
SbUniqueId uniqueId
 
- Protected Attributes inherited from SoFieldContainer
SbBool isBuiltIn
 
- Static Protected Attributes inherited from SoNode
static SbUniqueId nextUniqueId = 1
 
static int nextActionMethodIndex = 0
 

Detailed Description

The SoTextureCoordinate2 class contains a set of coordinates for the mapping of 2D textures.

When encountering a node of this type during traversal, the coordinates it contains will be put on the state stack. Some shape nodes (for instance SoIndexedFaceSet, among many others) can then use these coordinates for explicit, detailed control of how textures are mapped to its surfaces.

(If texture mapping is used without any SoTextureCoordinate2 nodes in the scene graph leading up to a shape node, all shape types have default fallbacks. So SoTextureCoordinate2 nodes are only necessary to use if you are not satisfied with the default mapping.)

Note that an SoTextureCoordinate2 node will replace the coordinates already present in the state (if any).

Here's a very simple example (in Inventor scene graph file format – mapping it to source code is straightforward) that shows how to set up two quadratic polygons, one mapped 1:1 to the texture, the other using only the upper left quarter of the texture:

Separator {
Texture2 {
image 6 8 3
0x00ff0000 0x00ff0000 0x000000ff 0x000000ff 0x00ff00ff 0x00ff00ff
0x00ff0000 0x00ff0000 0x000000ff 0x000000ff 0x00ff00ff 0x00ff00ff
0x00ff0000 0x00ff0000 0x000000ff 0x000000ff 0x00ff00ff 0x00ff00ff
0x0000ff00 0x0000ff00 0x0000ffff 0x0000ffff 0x0000ff00 0x0000ff00
0x0000ff00 0x0000ff00 0x0000ffff 0x0000ffff 0x0000ff00 0x0000ff00
0x00ffff00 0x00ffff00 0x000000ff 0x000000ff 0x00ffffff 0x00ffffff
0x00ffff00 0x00ffff00 0x000000ff 0x000000ff 0x00ffffff 0x00ffffff
0x00ffff00 0x00ffff00 0x000000ff 0x000000ff 0x00ffffff 0x00ffffff
}
Coordinate3 { point [ -1 -1 0, 1 -1 0, 1 1 0, -1 1 0 ] }
# "1:1 mapping" to actual texture appearance. (Note that Y goes
# from bottom to top, versus the common way of specifying bitmap
# data from top to bottom.)
TextureCoordinate2 { point [ 0 1, 1 1, 1 0, 0 0 ] }
IndexedFaceSet {
coordIndex [ 0, 1, 2, 3, -1 ]
textureCoordIndex [ 0, 1, 2, 3, -1 ]
}
Translation { translation +4 0 0 }
# Top left corner.
TextureCoordinate2 { point [ 0 0.5, 0.5 0.5, 0.5 0, 0 0 ] }
IndexedFaceSet {
coordIndex [ 0, 1, 2, 3, -1 ]
textureCoordIndex [ 0, 1, 2, 3, -1 ]
}
}

FILE FORMAT/DEFAULTS:

TextureCoordinate2 {
point [ ]
}
See also
SoTextureCoordinateFunction, SoTextureCoordinateBinding

Constructor & Destructor Documentation

◆ SoTextureCoordinate2()

SoTextureCoordinate2::SoTextureCoordinate2 ( void  )

Constructor.

◆ ~SoTextureCoordinate2()

SoTextureCoordinate2::~SoTextureCoordinate2 ( )
protectedvirtual

Destructor.

Member Function Documentation

◆ getTypeId()

SoType SoTextureCoordinate2::getTypeId ( void  ) const
virtual

Returns the type identification of an object derived from a class inheriting SoBase. This is used for runtime 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 predefined 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 top level superclasses for the various class groups.

Implements SoBase.

◆ getFieldData()

const SoFieldData * SoTextureCoordinate2::getFieldData ( void  ) const
protectedvirtual

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

Reimplemented from SoFieldContainer.

◆ doAction()

void SoTextureCoordinate2::doAction ( SoAction action)
virtual

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

Reimplemented from SoNode.

◆ GLRender()

void SoTextureCoordinate2::GLRender ( SoGLRenderAction action)
virtual

Action method for the SoGLRenderAction.

This is called during rendering traversals. Nodes influencing the rendering state in any way or want to throw geometry primitives at OpenGL override this method.

Reimplemented from SoNode.

◆ callback()

void SoTextureCoordinate2::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.

◆ pick()

void SoTextureCoordinate2::pick ( SoPickAction action)
virtual

Action method for SoPickAction.

Does common processing for SoPickAction action instances.

Reimplemented from SoNode.

Member Data Documentation

◆ point

SoMFVec2f SoTextureCoordinate2::point

The set of 2D texture coordinates. Default value of field is an empty set.

Texture coordinates are usually specified in normalized coordinates, i.e. in the range [0, 1]. (0, 0) is the lower left corner, while (1, 1) is the upper right corner of the texture image. Coordinates outside the [0, 1] range can be used to repeat the texture across a surface.

See also
SoTexure2::wrapS, SoTexture2::wrapT

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