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Open Inventor Reference
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Computes transformation matrix for subgraph. More...
#include <Inventor/actions/SoGetMatrixAction.h>
Public Member Functions | |
| SoGetMatrixAction (const SbViewportRegion &newRegion) | |
| Constructor takes viewport region to use for picking. More... | |
| virtual | ~SoGetMatrixAction () |
| Destructor. More... | |
| void | setViewportRegion (const SbViewportRegion &newRegion) |
| Sets/returns current viewport region to use for action. More... | |
| const SbViewportRegion & | getViewportRegion () const |
| Sets/returns current viewport region to use for action. More... | |
| SbMatrix & | getMatrix () |
| Returns cumulative transformation matrix. More... | |
| SbMatrix & | getInverse () |
| Returns cumulative inverse transformation matrix. More... | |
| SbMatrix & | getTextureMatrix () |
| Returns cumulative transformation matrix. More... | |
| SbMatrix & | getTextureInverse () |
| Returns cumulative inverse transformation matrix. More... | |
 Public Member Functions inherited from SoAction | |
| virtual | ~SoAction () |
| Destructor. More... | |
| virtual SoType | getTypeId () const =0 |
| Returns the type identifier for a specific instance. More... | |
| bool | isOfType (SoType type) const |
Returns TRUE if this instance is of the type specified in type or is derived from that type. More... | |
| virtual void | apply (SoNode *node) |
| virtual void | apply (SoPath *path) |
| virtual void | apply (const SoPathList &pathList, bool obeysRules=FALSE) |
| Initiates an action on the graph defined either by a node, path, or list of paths. More... | |
| virtual void | invalidateState () |
| Invalidates the current traversal state in the action, forcing it to be recreated when the action is next applied. More... | |
| AppliedCode | getWhatAppliedTo () const |
| Returns code indicating what action is being applied to. More... | |
| SoNode * | getNodeAppliedTo () const |
| These returns a pointer to the node, path, or path list the action is being applied to. More... | |
| SoPath * | getPathAppliedTo () const |
| const SoPathList * | getPathListAppliedTo () const |
| A single path list may be split into several, one for each different head node. More... | |
| const SoPathList * | getOriginalPathListAppliedTo () const |
| bool | isLastPathListAppliedTo () const |
| PathCode | getPathCode (int &numIndices, const int *&indices) |
| Returns path code based on where current node (the node at the end of the current path) lies with respect to the path(s) the action is being applied to. More... | |
| void | traverse (SoNode *node) |
| Does traversal of a graph rooted by a node. More... | |
| bool | hasTerminated () const |
| Returns TRUE if the traversal has reached a termination condition. More... | |
| const SoPath * | getCurPath () |
| Returns a pointer to the path accumulated during traversal, i.e., the chain of nodes from the root of the traversed graph to the current node being traversed. More... | |
| SoState * | getState () const |
| Get the state from the action. More... | |
| PathCode | getCurPathCode () const |
| These methods maintain the current path accumulated so far during traversal. More... | |
| void | pushCurPath (int childIndex) |
| void | popCurPath (PathCode prevPathCode) |
| virtual SoNode * | getCurPathTail () |
| This is virtual, so that SoCallbackAction can use current node. More... | |
| void | usePathCode (int &numIndices, const int *&indices) |
| called by inline getPathCode: More... | |
| void | pushCurPath () |
| Optimized versions of push/pop when we know path codes won't change: More... | |
| void | popPushCurPath (int childIndex) |
| void | popCurPath () |
| const SoLightweightPath & | getCurrentLightweightPath () const |
| Returns the current "light" path. More... | |
| void | setCurrentLightweightPath (const SoLightweightPath &path) |
| Sets the current "light" path. More... | |
Static Public Member Functions | |
| static void | initClass () |
| Static Public Member Functions inherited from SoAction | |
| static SoType | getClassTypeId () |
| Returns the type identifier for this class. More... | |
| static void | nullAction (SoAction *, SoNode *) |
| Null action method that can be stored in lookup table when desired. More... | |
| static void | initClass () |
| static void | initClasses () |
| Initialize ALL Inventor action classes. More... | |
Protected Member Functions | |
| virtual void | beginTraversal (SoNode *node) |
| Initiates action on graph. More... | |
| Protected Member Functions inherited from SoAction | |
| SoAction () | |
| Constructor. More... | |
| virtual const SoEnabledElementsList & | getEnabledElements () const |
| Returns the list of enabled elements for a given action subclass. More... | |
| void | setTerminated (bool flag) |
| Allows subclass instance to indicate that traversal has reached a termination condition. More... | |
| virtual bool | shouldCompactPathLists () const |
| This method is used when applying an action to an SoPathList. More... | |
Additional Inherited Members | |
| Public Types inherited from SoAction | |
| enum | AppliedCode { NODE , PATH , PATH_LIST } |
| This enum is used to determine what the action is being applied to. More... | |
| enum | PathCode { NO_PATH , IN_PATH , BELOW_PATH , OFF_PATH } |
| This enum may be used during traversal of nodes to indicate where the node is with respect to the path being traversed. More... | |
| Protected Attributes inherited from SoAction | |
| SoState * | state |
| Traversal state. More... | |
| SoActionMethodList * | traversalMethods |
| The list of what to do when. More... | |
| Static Protected Attributes inherited from SoAction | |
| static SoEnabledElementsList * | enabledElements |
| Holds list of enabled elements for the SoAction class. More... | |
| static SoActionMethodList * | methods |
| ... and the methods More... | |
This 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.
Definition at line 90 of file SoGetMatrixAction.h.
| SoGetMatrixAction::SoGetMatrixAction | ( | const SbViewportRegion & | newRegion | ) |
Even though the matrix computation may not involve a window per se, some nodes need this information to determine their placement.
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virtual |
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protectedvirtual |
Reimplemented from SoAction.
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inline |
Warning: the matrix returned by this routine should not be changed (unless you are implementing your own transformation nodes).
Definition at line 118 of file SoGetMatrixAction.h.
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inline |
Warning: the matrix returned by this routine should not be changed (unless you are implementing your own transformation nodes).
Definition at line 114 of file SoGetMatrixAction.h.
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inline |
Warning: the matrix returned by this routine should not be changed (unless you are implementing your own transformation nodes).
Definition at line 127 of file SoGetMatrixAction.h.
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inline |
Warning: the matrix returned by this routine should not be changed (unless you are implementing your own transformation nodes).
Definition at line 123 of file SoGetMatrixAction.h.
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inline |
Definition at line 109 of file SoGetMatrixAction.h.
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static |
| void SoGetMatrixAction::setViewportRegion | ( | const SbViewportRegion & | newRegion | ) |
1.9.1