'\"! tbl | mmdoc
'\"macro stdmacro
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.TH SoAction(3IV)
.SH NAME
SoAction \(em abstract base class for all actions 
.SH INHERITS FROM
SoAction
.SH SYNOPSIS
.ps -1
\*(Cr#include <Inventor/actions/SoAction.h>
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\f1Methods from class SoAction:
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\*(Pt
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.el\{\
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\*(Pt	\c\
\}
\*(Cb~SoAction\*(Cr()
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.ds Pt \*(Crvirtual void
.ie \w'\*(Pt'>=20n \{\
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\*(Pt
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\*(Pt	\c\
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\*(Cbapply\*(Cr(SoNode *node)
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\*(Pt	\c\
\}
\*(Cbapply\*(Cr(SoPath *path)
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\*(Cbapply\*(Cr(const SoPathList &pathList, SbBool obeysRules = FALSE)
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\*(CbgetClassTypeId\*(Cr()
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.ds Pt \*(Crvirtual SoType
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\*(CbgetTypeId\*(Cr()
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\*(CbisOfType\*(Cr(SoType type)
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\*(CbinvalidateState\*(Cr()
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.SH DESCRIPTION
\*(CbSoAction\f1 is the abstract base class for all actions. Classes derived from \*(CbSoAction\f1 define operations to be applied at each node encountered during traversal of a scene graph. The function that gets called to implement
\&the action for a particular node type is determined by a lookup table in the global database. 
.SH METHODS
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\}
\*(Cb~SoAction\*(Cr()
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\f1Destructor. 
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\*(Cbapply\*(Cr(SoNode *node)
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\*(Pt	\c\
\}
\*(Cbapply\*(Cr(SoPath *path)
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\*(Cbapply\*(Cr(const SoPathList &pathList, SbBool obeysRules = FALSE)
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\f1Initiates an action on the graph defined either by a node, path, or list of paths. TRUE can be passed for the \*(CrobeysRules\f1 flag if the given path list has the following 4 properties: 
.nf
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1 - All paths have the same head node
2 - Paths are sorted in traversal order
3 - If one path ends at node \f2A\f1, no other path
    continues through \f2A\f1
4 - No two paths are the same

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These rules will be obeyed by path
\&lists returned by picking and by searches for non-group nodes. 
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\*(CbgetClassTypeId\*(Cr()
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\f1Returns the type identifier for this class. 
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.ds Pt \*(Crvirtual SoType
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\*(CbgetTypeId\*(Cr()
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\f1Returns the type identifier for a specific instance. 
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\*(CbisOfType\*(Cr(SoType type)
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\f1Returns TRUE if this instance is of the type specified in \*(Crtype\f1 or is derived from that type. Otherwise, it returns FALSE. For example, 
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\*(Cr
actionPtr->isOfType(SoGetMatrixAction::getClassTypeId())

\f1
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returns TRUE if \*(CractionPtr\f1 is an instance of \*(CbSoGetMatrixAction\f1 or one of its subclasses. 
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.ds Pt \*(Crvirtual void
.ie \w'\*(Pt'>=20n \{\
.ne 3
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	\c\
\}
.el\{\
.ne 2
\*(Pt	\c\
\}
\*(CbinvalidateState\*(Cr()
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\f1Invalidates the current traversal state in the action, forcing it to be recreated when the action is next applied. This is typically unnecessary in most applications. 
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.SH SEE ALSO
\*(CbSoNode, SoPath, SoPathList, SoCallbackAction, SoGLRenderAction, SoGetBoundingBoxAction, SoGetMatrixAction, SoHandleEventAction, SoPickAction, SoRayPickAction, SoSearchAction, SoWriteAction