Computes transformation matrix for a subgraph. More...
#include <Inventor/actions/SoGetMatrixAction.h>
Public Member Functions | |
virtual SoType | getTypeId () const |
Returns the type identifier for this specific instance. | |
SoGetMatrixAction (const SbViewportRegion &newRegion) | |
Constructor. | |
void | setViewportRegion (const SbViewportRegion &newRegion) |
Sets current viewport region to use for action. | |
const SbViewportRegion & | getViewportRegion () const |
Returns current viewport region to use for action. | |
SbMatrix & | getMatrix () |
Returns cumulative transformation matrix. | |
SbMatrix & | getInverse () |
Returns the inverse of the cumulative transformation matrix. | |
SbMatrix & | getTextureMatrix () |
Returns cumulative texture transformation matrix. | |
SbMatrix & | getTextureInverse () |
Returns the inverse of the cumulative texture transformation matrix. | |
Public Member Functions inherited from SoAction | |
virtual | ~SoAction () |
Destructor. | |
virtual void | apply (SoNode *node) |
Initiates an action on the graph defined by a node. | |
virtual void | apply (SoPath *path) |
Initiates an action on the graph defined by a path. | |
virtual void | apply (const SoPathList &pathList, SbBool obeysRules=FALSE) |
Initiates an action on the graph defined by a list of paths. | |
virtual void | clearApplyResult () |
When applied, an action may reference nodes or create objects (e.g. | |
virtual void | invalidateState () |
Invalidates the current traversal state in the action, forcing it to be recreated when the action is next applied. | |
void | stopActionInBranch () |
This function stops the action in the current Scene Graph branch. | |
SbBool | getContinueActionInBranchFlag () const |
This function indicates if the action must stop in the current branch. | |
void | resetContinueActionInBranchFlag () |
This function resets the continue action flag. | |
void | useAlternateRep (const SbBool enable) |
Tell the action to use alternate representations during traversal when available. | |
SbBool | isUsingAlternateRep () const |
Returns TRUE if current action is using alternate representations. | |
void | setSceneManager (SoSceneManager *mgr) |
Set the scene manager associated with this action (if any ). | |
SoSceneManager * | getSceneManager () const |
Return the SoSceneManager associated with this action. | |
virtual void | forwardTraversal (SoNode *node) |
Traverse a node that is not part of the current scenegraph. | |
virtual void | forwardTraversal (SoPath *path) |
Traverse a path that is not part of the current scenegraph. | |
DistribMode | getDistribMode () const |
Returns the distribution mode of this action across a cluster (ScaleViz-Cluster only). | |
AppliedCode | getWhatAppliedTo () const |
Returns code indicating what action is being applied to. | |
SoNode * | getNodeAppliedTo () const |
Returns the node the action is being applied to. | |
SoPath * | getPathAppliedTo () const |
Returns the path the action is being applied to. | |
const SoPathList * | getPathListAppliedTo () const |
Returns the path list the action is being applied to. | |
const SoPathList * | getOriginalPathListAppliedTo () const |
Returns the original path list the action is being applied to. | |
SbBool | isLastPathListAppliedTo () const |
Returns TRUE if the current list is the last one from the original. | |
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. | |
PathCode | getPathCodeMI (int &numIndices, const int *&indices, const int *&instanceIndices) |
Extender API: available to programmers who wish to extend the toolkit | |
void | traverse (SoNode *node) |
Does traversal of a graph rooted by a node. | |
SbBool | hasTerminated () const |
Returns TRUE if the traversal has reached a termination condition. | |
const SoPath * | getCurPath () |
Returns the path accumulated during traversal, i.e., the chain of nodes from the root of the traversed graph to the current node being traversed. | |
SoState * | getState () const |
Gets the state from the action. | |
virtual void | setUpState () |
Creates state if it is NULL or it is no longer valid because new elements have been enabled since it was created. | |
void | setPipeId (int id) |
Sets pipe identifier in the range [1..N] associated to this render action while running a ScaleViz Multipipe configuration. | |
int | getPipeId () const |
Gets pipe identifier in the range [1..N] associated to this render action while running a ScaleViz Multipipe configuration. | |
bool | isBeingApplied () |
Returns TRUE if this action is currently being applied. | |
virtual bool | preDelayedTraversal () |
Method called by SoMultiPassManager before delayed pass traversals. | |
virtual void | postDelayedTraversal () |
Method called by SoMultiPassManager after delayed pass traversals. | |
Public Member Functions inherited from SoTypedObject | |
SbBool | isOfType (const SoType &type) const |
Returns TRUE if this object is of the type specified in type or is derived from that type. | |
template<typename TypedObjectClass > | |
SbBool | isOfType () const |
Returns TRUE if this object is of the type of class TypedObjectClass or is derived from that class. | |
Static Public Member Functions | |
static SoType | getClassTypeId () |
Returns the type identifier for this class. | |
Static Public Member Functions inherited from SoAction | |
static SoType | getClassTypeId () |
Returns the type identifier for this class. | |
static void | nullAction (SoAction *, SoNode *) |
Null action method that can be stored in lookup table when desired. | |
Static Public Member Functions inherited from SoTypedObject | |
static SoType | getClassTypeId () |
Returns the type identifier for this class. | |
Additional Inherited Members | |
Public Types inherited from SoAction | |
enum | DistribMode { LOCAL_ONLY , CLUSTER_ONLY , ALL } |
This is used to define the way an action is distributed across a cluster. More... | |
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... | |
Computes transformation matrix for a subgraph.
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. The cumulative transformation matrix transforms the coordinates of a shape from the local object coordinate system to the global world coordinate system.
When this action is applied to a node, it computes the matrix for just that node. This is currently the easiest way to get the transformation matrix for an SoTransform node. It's not very useful for most other types of nodes.
The most common scenario is applying this action to a path. In that case 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 most other actions (such as rendering) do. This behavior makes the most sense for this action. To get a path to, for example, a specific geometry in the scene graph see SoSearchAction.
Sets: SoViewportRegionElement
SoGetBoundingBoxAction, SoSearchAction
Definition at line 141 of file SoGetMatrixAction.h.
SoGetMatrixAction::SoGetMatrixAction | ( | const SbViewportRegion & | newRegion | ) |
Constructor.
Even though the bounding box computation may not involve a window per se, some nodes need the size of the viewport to determine their size in 3D coordinates. For example the size of an SoText2 is a fixed value in device coordinates, but the corresponding size in 3D depends on the current camera.
Usually it is convenient to get the actual viewport region from the viewer as shown in the example above. However if the scene graph does not contain any viewport dependent nodes then any values can be used.
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static |
Returns the type identifier for this class.
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inline |
Returns the inverse of the cumulative transformation matrix.
Warning: the matrix returned by this routine should not be changed (unless you are implementing your own transformation nodes).
Definition at line 185 of file SoGetMatrixAction.h.
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inline |
Returns cumulative transformation matrix.
Warning: the matrix returned by this routine should not be changed (unless you are implementing your own transformation nodes).
Definition at line 179 of file SoGetMatrixAction.h.
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inline |
Returns the inverse of the cumulative texture transformation matrix.
Warning: the matrix returned by this routine should not be changed (unless you are implementing your own transformation nodes).
Definition at line 198 of file SoGetMatrixAction.h.
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inline |
Returns cumulative texture transformation matrix.
Warning: the matrix returned by this routine should not be changed (unless you are implementing your own transformation nodes).
Definition at line 192 of file SoGetMatrixAction.h.
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virtual |
Returns the type identifier for this specific instance.
Implements SoTypedObject.
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inline |
Returns current viewport region to use for action.
Definition at line 172 of file SoGetMatrixAction.h.
void SoGetMatrixAction::setViewportRegion | ( | const SbViewportRegion & | newRegion | ) |
Sets current viewport region to use for action.