SoTextureCoordinatePlane Class Reference

The SoTextureCoordinatePlane class generates texture coordinates by projecting onto a plane. More...

#include <Inventor/nodes/SoTextureCoordinatePlane.h>

Inheritance diagram for SoTextureCoordinatePlane:

Public Member Functions
	SoTextureCoordinatePlane (void)
virtual void	callback (SoCallbackAction *action)
virtual void	doAction (SoAction *action)
virtual SoType	getTypeId (void) const
virtual void	GLRender (SoGLRenderAction *action)
virtual void	pick (SoPickAction *action)
Public Member Functions inherited from SoTextureCoordinateFunction
	SoTextureCoordinateFunction (void)
Public Member Functions inherited from SoNode
virtual SoNode *	addToCopyDict (void) const
virtual SbBool	affectsState (void) const
virtual void	audioRender (SoAudioRenderAction *action)
virtual SoNode *	copy (SbBool copyconnections=FALSE) const
virtual void	copyContents (const SoFieldContainer *from, SbBool copyconnections)
virtual SoFieldContainer *	copyThroughConnection (void) const
virtual void	getBoundingBox (SoGetBoundingBoxAction *action)
virtual SoChildList *	getChildren (void) const
virtual void	getMatrix (SoGetMatrixAction *action)
SbUniqueId	getNodeId (void) const
NodeType	getNodeType (void) const
virtual void	getPrimitiveCount (SoGetPrimitiveCountAction *action)
virtual void	GLRenderBelowPath (SoGLRenderAction *action)
virtual void	GLRenderInPath (SoGLRenderAction *action)
virtual void	GLRenderOffPath (SoGLRenderAction *action)
virtual void	grabEventsCleanup (void)
virtual void	grabEventsSetup (void)
virtual void	handleEvent (SoHandleEventAction *action)
SbBool	isOverride (void) const
virtual void	notify (SoNotList *l)
virtual void	rayPick (SoRayPickAction *action)
virtual void	search (SoSearchAction *action)
void	setNodeType (const NodeType type)
void	setOverride (const SbBool state)
virtual void	startNotify (void)
virtual void	write (SoWriteAction *action)
virtual void	writeInstance (SoOutput *out)
Public Member Functions inherited from SoFieldContainer
virtual void	addWriteReference (SoOutput *out, SbBool isfromfield=FALSE)
void	copyFieldValues (const SoFieldContainer *container, SbBool copyconnections=FALSE)
SbBool	enableNotify (const SbBool flag)
SbBool	fieldsAreEqual (const SoFieldContainer *container) const
void	get (SbString &fielddata)
void	get (SbString &fielddata, SoOutput *out)
virtual int	getAllFields (SoFieldList &l) const
virtual SoField *	getEventIn (const SbName &name) const
virtual SoField *	getEventOut (const SbName &name) const
virtual SoField *	getField (const SbName &name) const
SbBool	getFieldName (const SoField *const field, SbName &name) const
virtual int	getFields (SoFieldList &l) const
virtual void	getFieldsMemorySize (size_t &managed, size_t &unmanaged) const
SbBool	getIsBuiltIn (void) const
void *	getUserData (void) const
SbBool	hasDefaultValues (void) const
SbBool	isNotifyEnabled (void) const
SbBool	set (const char *const fielddata)
SbBool	set (const char *fielddata, SoInput *input)
void	setToDefaults (void)
void	setUserData (void *userdata) const
virtual SbBool	validateNewFieldValue (SoField *field, void *newval)
Public Member Functions inherited from SoBase
void	addAuditor (void *const auditor, const SoNotRec::Type type)
void	assertAlive (void) const
const SoAuditorList &	getAuditors (void) const
virtual SbName	getName (void) const
int32_t	getRefCount (void) const
SbBool	isOfType (SoType type) const
	Returns TRUE if the type of this object is either of the same type or inherited from type.
void	ref (void) const
void	removeAuditor (void *const auditor, const SoNotRec::Type type)
virtual void	setName (const SbName &newname)
SbBool	shouldWrite (void)
void	touch (void)
void	unref (void) const
void	unrefNoDelete (void) const

Static Public Member Functions
static SoType	getClassTypeId (void)
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 Public Member Functions inherited from SoTextureCoordinateFunction
static SoType	getClassTypeId (void)
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 Public Member Functions inherited from SoNode
static void	audioRenderS (SoAction *action, SoNode *node)
static void	callbackS (SoAction *action, SoNode *node)
static int	getActionMethodIndex (const SoType type)
static void	getBoundingBoxS (SoAction *action, SoNode *node)
static SoNode *	getByName (const SbName &name)
static int	getByName (const SbName &name, SoNodeList &l)
static SoType	getClassTypeId (void)
static uint32_t	getCompatibilityTypes (const SoType &nodetype)
static void	getMatrixS (SoAction *action, SoNode *node)
static SbUniqueId	getNextNodeId (void)
static void	getPrimitiveCountS (SoAction *action, SoNode *node)
static void	GLRenderS (SoAction *action, SoNode *node)
static void	handleEventS (SoAction *action, SoNode *node)
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 void	initClasses (void)
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 Public Member Functions inherited from SoFieldContainer
static void	addCopy (const SoFieldContainer *orig, const SoFieldContainer *copy)
static SoFieldContainer *	checkCopy (const SoFieldContainer *orig)
static void	cleanupClass (void)
static void	copyDone (void)
static SoFieldContainer *	findCopy (const SoFieldContainer *orig, const SbBool copyconnections)
static SoType	getClassTypeId (void)
	This static method returns the SoType object associated with objects of this class.
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 void	initCopyDict (void)
Static Public Member Functions inherited from SoBase
static void	addName (SoBase *const base, const char *const name)
static SbBool	connectRoute (SoInput *input, const SbName &fromnodename, const SbName &fromfieldname, const SbName &tonodename, const SbName &tofieldname)
static void	decrementCurrentWriteCounter (void)
static SoType	getClassTypeId (void)
	This static method returns the SoType object associated with objects of this class.
static SoBase *	getNamedBase (const SbName &name, SoType type)
static int	getNamedBases (const SbName &name, SoBaseList &baselist, SoType type)
static SbBool	getTraceRefs (void)
static void	incrementCurrentWriteCounter (void)
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 SbBool	read (SoInput *input, SoBase *&base, SoType expectedtype)
static SbBool	readRoute (SoInput *input)
static void	removeName (SoBase *const base, const char *const name)
static void	setInstancePrefix (const SbString &c)
static void	setTraceRefs (SbBool trace)

Public Attributes
SoSFVec3f	directionR
SoSFVec3f	directionS
SoSFVec3f	directionT

Protected Member Functions
virtual	~SoTextureCoordinatePlane ()
virtual const SoFieldData *	getFieldData (void) const
Protected Member Functions inherited from SoTextureCoordinateFunction
virtual	~SoTextureCoordinateFunction ()
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 SoNotRec	createNotRec (void)
virtual void	destroy (void)
virtual const char *	getFileFormatName (void) const
SbBool	hasMultipleWriteRefs (void) const
void	writeFooter (SoOutput *out) const
SbBool	writeHeader (SoOutput *out, SbBool isgroup, SbBool isengine) const

Static Protected Member Functions
static const SoFieldData **	getFieldDataPtr (void)
Static Protected Member Functions inherited from SoTextureCoordinateFunction
static const SoFieldData **	getFieldDataPtr (void)
Static Protected Member Functions inherited from SoNode
static const SoFieldData **	getFieldDataPtr (void)
static int	getNextActionMethodIndex (void)
static void	incNextActionMethodIndex (void)
static void	setCompatibilityTypes (const SoType &nodetype, const uint32_t bitmask)
static void	setNextActionMethodIndex (int index)
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 int	nextActionMethodIndex = 0
static SbUniqueId	nextUniqueId = 1

Detailed Description

The SoTextureCoordinatePlane class generates texture coordinates by projecting onto a plane.

SoTextureCoordinatePlane is used for generating texture coordinates by projecting the object onto a texture plane. The s, t and r texture coordinates are computed as the distance from the origin to the projected point, in the respective directions. The texture plane is specified using two direction vectors, given as SoTextureCoordinatePlane::directionS and SoTextureCoordinatePlane::directionT in object space coordinates. SoTextureCoordinatePlane::directionR is used for generating the third coordinate, and can be used for generating texture coordinate for 3D textures. For 2D textures you can just leave this field alone.

The length of the vector determines the repeat interval of the texture per unit length.

A simple usage example:

SoSeparator *root = new SoSeparator;
root->ref();
 
// the texture image
SoTexture2 *tex = new SoTexture2;
tex->filename.setValue("foo.png");
root->addChild(tex);
 
// the texture plane
SoTextureCoordinatePlane *texPlane = new SoTextureCoordinatePlane;
texPlane->directionS.setValue(SbVec3f(1,0,0));
texPlane->directionT.setValue(SbVec3f(0,1,0));
root->addChild(texPlane);
 
// add a simple cube
SoCube * c = new SoCube;
c->width.setValue(1.0);
c->height.setValue(1.0)
c->depth.setValue(1.0);
root->addChild(new SoCube);

Here, we are projecting a texture onto a cube. The texture coordinate plane is specified by directionS = (1,0,0) and directionT = (0,1,0), meaning that it is parallel to the front face of the cube. Setting e.g. directionS = (0,1,0) and directionT = (-1,0,0) would rotate the texture counterclockwise by 90 degrees. Setting them to ((2,0,0), (0,2,0)) results to the texture being repeated twice per unit, so the texture appears four times on the 1x1 face.

Note that when you transform the cube, the transformation will also affect the texture - it will be transformed vs. the rest of the world, but appear "fixed" on the object. If you want to change the placement of the texture on the object, you have to insert a SoTexture2Transform node before the texture coordinate plane. For instance in the example above, since the cube is centered in its coordinate system, the lower left corner of the texture appears to be in the middle of the face. To move the texture's origin to coincide with the lower left corner of the face, insert

SoTexture2Transform * tf = new SoTexture2Transform;
tf->translation.setValue(-0.5,-0.5);
root->addChild(tf);

before adding the texture coordinate plane.

FILE FORMAT/DEFAULTS:

TextureCoordinatePlane {
    directionS 1 0 0
    directionT 0 1 0
}

Constructor & Destructor Documentation

SoTextureCoordinatePlane()

SoTextureCoordinatePlane::SoTextureCoordinatePlane

(

void

)

Constructor.

~SoTextureCoordinatePlane()

SoTextureCoordinatePlane::~SoTextureCoordinatePlane ( )

protectedvirtual

Destructor.

Member Function Documentation

callback()

void SoTextureCoordinatePlane::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.

doAction()

void SoTextureCoordinatePlane::doAction ( SoAction * action )

virtual

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

Reimplemented from SoNode.

getClassTypeId()

SoType SoTextureCoordinatePlane::getClassTypeId ( void )

static

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

getFieldData()

const SoFieldData * SoTextureCoordinatePlane::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 SoTextureCoordinateFunction.

getFieldDataPtr()

const SoFieldData ** SoTextureCoordinatePlane::getFieldDataPtr ( void )

staticprotected

This API member is considered internal to the library, as it is not likely to be of interest to the application programmer.

Returns the SoFieldData class which holds information about fields in this node.

getTypeId()

SoType SoTextureCoordinatePlane::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.

Reimplemented from SoTextureCoordinateFunction.

GLRender()

void SoTextureCoordinatePlane::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.

pick()

void SoTextureCoordinatePlane::pick ( SoPickAction * action )

virtual

Action method for SoPickAction.

Does common processing for SoPickAction action instances.

Reimplemented from SoNode.

Member Data Documentation

directionR

SoSFVec3f SoTextureCoordinatePlane::directionR

The R texture coordinate plane direction. The length of the vector determines the repeat interval of the texture per unit length.

directionS

SoSFVec3f SoTextureCoordinatePlane::directionS

The S texture coordinate plane direction. The length of the vector determines the repeat interval of the texture per unit length.

directionT

SoSFVec3f SoTextureCoordinatePlane::directionT

The T texture coordinate plane direction. The length of the vector determines the repeat interval of the texture per unit length.

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

• SoTextureCoordinatePlane.h
• SoTextureCoordinatePlane.cpp