SoGetMatrixAction(3IV) - Online Linux Manual Page
NAMESoGetMatrixAction — computes transformation matrix for subgraph
INHERITS FROMSoAction > SoGetMatrixAction
SYNOPSIS¶\f7#include <Inventor/actions/SoGetMatrixAction.h> Methods from class SoGetMatrixAction: \f8SoGetMatrixAction\*(Cr(const SbViewportRegion &newRegion)
\f8setViewportRegion\*(Cr(const SbViewportRegion &newRegion)
\f8getViewportRegion\*(Cr() const
\f8getMatrix\*(Cr()
\f8getInverse\*(Cr()
\f8getTextureMatrix\*(Cr()
\f8getTextureInverse\*(Cr() Methods from class SoAction: \f8apply\*(Cr(SoNode *node)
\f8apply\*(Cr(SoPath *path)
\f8apply\*(Cr(const SoPathList &pathList, SbBool obeysRules = FALSE)
\f8getClassTypeId\*(Cr()
\f8getTypeId\*(Cr()
\f8isOfType\*(Cr(SoType type)
\f8invalidateState\*(Cr()
DESCRIPTIONThis action computes transformation matrices for a given subgraph. It computes the cumulative transformation matrix and its inverse, along with a cumulative texture transformation matrix and its inverse. This action is unlike most others in that it does not traverse downwards from groups. When applied to a node, it computes the matrix for just that node. (This makes sense for transformation nodes, but not for others, really.) It is much more useful when applied to a path. When applied to a path, it gathers the transformation info for all nodes in the path and those that affect nodes in the path, but it stops when it hits the last node in the path; it does not traverse downwards from it as other actions (such as rendering) do. This behavior makes the most sense for this action.
METHODS\f8SoGetMatrixAction\*(Cr(const SbViewportRegion &newRegion)
Constructor takes viewport region to use for picking. Even though the matrix computation may not involve a window per se, some nodes need this information to determine their placement. \f8setViewportRegion\*(Cr(const SbViewportRegion &newRegion)
\f8getViewportRegion\*(Cr() const
Sets/returns current viewport region to use for action. \f8getMatrix\*(Cr()
\f8getInverse\*(Cr()
Returns cumulative transformation matrix and its inverse. Warning: the matrices returned by these routines should not be changed (unless you are implementing your own transformation nodes). \f8getTextureMatrix\*(Cr()
\f8getTextureInverse\*(Cr()
Returns cumulative texture transformation matrix and its inverse. Warning: the matrices returned by these routines should not be changed (unless you are implementing your own transformation nodes).
SEE ALSO\f8SoGetBoundingBoxAction 0
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