File: SoCoordinate4.ivm

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NAME SoCoordinate4 SoCoord4 "" { rational coordinate point node }

INCLUDE nodes/SoCoordinate4.h

DESC {
This node defines a set of 3D coordinates to be used by subsequent
vertex-based shape nodes (those derived from \cSoVertexShape\.) 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.
\p
This node exists primarily for use with NURBS curves and surfaces.
However, it can be used to define coordinates for any vertex-based
shape.
}

FIELD point { Coordinate point(s). }

METHOD "" SoCoordinate4() {
Creates a coordinate node with default settings.
}

METHOD "" static SoType getClassTypeId() {
Returns type identifier for this class.
}

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

ALSO {
SoCoordinate4,
SoIndexedNurbsCurve,
SoIndexedNurbsSurface,
SoNurbsCurve,
SoNurbsProfile,
SoNurbsSurface,
SoVertexShape
}