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							    SoCoordinate4(3IV)

NAME
     SoCoordinate4 (SoCoord4) - rational coordinate point node

INHERITS FROM
     SoBase > SoFieldContainer > SoNode > SoCoordinate4

SYNOPSIS
     #include <Inventor_c/nodes/SoCoordinate4.h>

     typedef SoCoordinate4  SoCoord4

	  Fields from class SoCoordinate4:

     SoMFVec4f		 point

	  Functions from class SoCoordinate4:

     SoCoordinate4 *	 SoCoord4Create()
     SoType		 SoCoord4GetClassTypeId()

	  Functions from class SoNode:

     void		 SoCoord4SetOverride(SoCoord4 *this, SbBool state)
     SbBool		 SoCoord4IsOverride(const SoCoord4 *this)
     SoNode *		 SoCoord4Copy(const SoCoord4 *this, SbBool
			      copyConnections = FALSE)
     SbBool		 SoCoord4AffectsState(const SoCoord4 *this)
     SoNode *		 SoCoord4GetByName(const char *name)
     int		 SoCoord4GetByNameList(const char *name, SoNodeList
			      *list)

	  Functions from class SoFieldContainer:

     void		 SoCoord4SetToDflts(SoCoord4 *this)
     SbBool		 SoCoord4HasDfltVals(const SoCoord4 *this)
     SbBool		 SoCoord4FldsAreEq(const SoCoord4 *this, const
			      SoFieldContainer *fc)
     void		 SoCoord4CopyFieldVals(SoCoord4 *this, const
			      SoFieldContainer *fc, SbBool copyConnections =
			      FALSE)
     SbBool		 SoCoord4Set(SoCoord4 *this, const char
			      *fieldDataString)
     void		 SoCoord4Get(SoCoord4 *this, SbString
			      *fieldDataString)
     int		 SoCoord4GetFields(const SoCoord4 *this, SoFieldList
			      *resultList)
     SoField *		 SoCoord4GetField(const SoCoord4 *this, const char
			      *fieldName)
     SbBool		 SoCoord4GetFieldName(const SoCoord4 *this, const
			      SoField *field, SbName *fieldName)
     SbBool		 SoCoord4IsNotifyEnabled(const SoCoord4 *this)

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SoCoordinate4(3IV)

     SbBool		 SoCoord4EnableNotify(SoCoord4 *this, SbBool flag)

	  Functions from class SoBase:

     void		 SoCoord4Ref(SoCoord4 *this)
     void		 SoCoord4Unref(const SoCoord4 *this)
     void		 SoCoord4UnrefNoDelete(const SoCoord4 *this)
     void		 SoCoord4Touch(SoCoord4 *this)
     SoType		 SoCoord4GetTypeId(const SoCoord4 *this)
     SbBool		 SoCoord4IsOfType(const SoCoord4 *this, SoType type)
     void		 SoCoord4SetName(SoCoord4 *this, const char *name)
     SbName		 SoCoord4GetName(const SoCoord4 *this)

DESCRIPTION
     This node defines a set of 3D coordinates to be used by subsequent
     vertex-based shape nodes (those derived from SoVertexShape) or shape
     nodes that use them as control points (such as NURBS curves and
     surfaces). Coordinates are specifed as rational 4-vectors; the
     corresponding 3D point is computed by dividing the first three components
     by the fourth. This node does not produce a visible result during
     rendering; it simply replaces the current coordinates in the rendering
     state for subsequent nodes to use.

     This node exists primarily for use with NURBS curves and surfaces.
     However, it can be used to define coordinates for any vertex-based shape.

FIELDS
     SoMFVec4f		 point
	  Coordinate point(s).

FUNCTIONS
     SoCoordinate4 *	 SoCoord4Create()
	  Creates a coordinate node with default settings.

     SoType		 SoCoord4GetClassTypeId()
	  Returns type identifier for this class.

ACTION BEHAVIOR
     SoGLRenderAction, SoCallbackAction, SoGetBoundingBoxAction,
     SoRayPickAction
	  Sets coordinates in current traversal state.

FILE FORMAT/DEFAULTS
     Coordinate4 {
	  point	 0 0 0 1
     }

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							    SoCoordinate4(3IV)

SEE ALSO
     SoCoordinate4, SoIndexedNurbsCurve, SoIndexedNurbsSurface, SoNurbsCurve,
     SoNurbsProfile, SoNurbsSurface, SoVertexShape

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