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						 SoTextureCoordinatePlane(3IV)

NAME
     SoTextureCoordinatePlane (SoTexPln) - node that specifies texture
     coordinates by projection from a plane

INHERITS FROM
     SoBase > SoFieldContainer > SoNode > SoTextureCoordinateFunction >
     SoTextureCoordinatePlane

SYNOPSIS
     #include <Inventor_c/nodes/SoTextureCoordinatePlane.h>

     typedef SoTextureCoordinatePlane
			 SoTexPln

	  Fields from class SoTextureCoordinatePlane:

     SoSFVec3f		 directionS
     SoSFVec3f		 directionT

	  Functions from class SoTextureCoordinatePlane:

     SoTextureCoordinatePlane *	 SoTexPlnCreate()
     SoType			 SoTexPlnGetClassTypeId()

	  Functions from class SoNode:

     void		 SoTexPlnSetOverride(SoTexPln *this, SbBool state)
     SbBool		 SoTexPlnIsOverride(const SoTexPln *this)
     SoNode *		 SoTexPlnCopy(const SoTexPln *this, SbBool
			      copyConnections = FALSE)
     SbBool		 SoTexPlnAffectsState(const SoTexPln *this)
     SoNode *		 SoTexPlnGetByName(const char *name)
     int		 SoTexPlnGetByNameList(const char *name, SoNodeList
			      *list)

	  Functions from class SoFieldContainer:

     void		 SoTexPlnSetToDflts(SoTexPln *this)
     SbBool		 SoTexPlnHasDfltVals(const SoTexPln *this)
     SbBool		 SoTexPlnFldsAreEq(const SoTexPln *this, const
			      SoFieldContainer *fc)
     void		 SoTexPlnCopyFieldVals(SoTexPln *this, const
			      SoFieldContainer *fc, SbBool copyConnections =
			      FALSE)
     SbBool		 SoTexPlnSet(SoTexPln *this, const char
			      *fieldDataString)
     void		 SoTexPlnGet(SoTexPln *this, SbString
			      *fieldDataString)
     int		 SoTexPlnGetFields(const SoTexPln *this, SoFieldList
			      *resultList)
     SoField *		 SoTexPlnGetField(const SoTexPln *this, const char
			      *fieldName)

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SoTextureCoordinatePlane(3IV)

     SbBool		 SoTexPlnGetFieldName(const SoTexPln *this, const
			      SoField *field, SbName *fieldName)
     SbBool		 SoTexPlnIsNotifyEnabled(const SoTexPln *this)
     SbBool		 SoTexPlnEnableNotify(SoTexPln *this, SbBool flag)

	  Functions from class SoBase:

     void		 SoTexPlnRef(SoTexPln *this)
     void		 SoTexPlnUnref(const SoTexPln *this)
     void		 SoTexPlnUnrefNoDelete(const SoTexPln *this)
     void		 SoTexPlnTouch(SoTexPln *this)
     SoType		 SoTexPlnGetTypeId(const SoTexPln *this)
     SbBool		 SoTexPlnIsOfType(const SoTexPln *this, SoType type)
     void		 SoTexPlnSetName(SoTexPln *this, const char *name)
     SbName		 SoTexPlnGetName(const SoTexPln *this)

DESCRIPTION
     This node creates texture coordinates for points on an object's surface
     by projecting them onto a plane. The directionS and directionT fields
     define the plane. The S coordinate is computed as the distance from the
     object-space origin along the vector specified in the directionS field.
     The T coordinate is computed similarly, using the directionT field.

     The length of the direction vector is also taken into account. For
     example, assume directionS is (0.5, 0, 0) and directionT is (0, 1, 0).
     The square defined by the (x, y, z) vertices:

	  (-1, -1, 0) (1, -1, 0) (1, 1, 0) (-1, 1, 0)

     will be assigned the (s, t) texture coordinates:

	  (-2, -1) (2, -1) (2, 1) (-2, 1)

FIELDS
     SoSFVec3f		 directionS
     SoSFVec3f		 directionT
	  Directions of projection for S and T coordinates.

FUNCTIONS
     SoTextureCoordinatePlane *	 SoTexPlnCreate()
	  Creates a texture function node with default settings.

     SoType			 SoTexPlnGetClassTypeId()
	  Returns type identifier for this class.

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						 SoTextureCoordinatePlane(3IV)

ACTION BEHAVIOR
     SoGLRenderAction, SoCallbackAction, SoRayPickAction
	  Sets the current texture function in the state.

FILE FORMAT/DEFAULTS
     TextureCoordinatePlane {
	  directionS  1 0 0
	  directionT  0 1 0
     }

SEE ALSO
     SoTexture2, SoTexture2Transform, SoTextureCoordinateDefault,
     SoTextureCoordinateEnvironment

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