Abstract base class for picking objects in a scene. More...
#include <Inventor/actions/SoPickAction.h>
Public Member Functions | |
| 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. | |
| void | enableCulling (SbBool flag) |
| Setting this flag to FALSE disables any pick culling that might take place (as in SoSeparators). | |
| SbBool | isCullingEnabled () const |
Static Public Member Functions | |
| static void | initClass () |
Protected Member Functions | |
| SoPickAction (const SbViewportRegion &viewportRegion) | |
| Constructor takes viewport region. | |
| virtual | ~SoPickAction () |
| Destructor. | |
| virtual void | beginTraversal (SoNode *node) |
| Initiates action on graph. | |
Protected Attributes | |
| SbViewportRegion | vpRegion |
| Current viewport region. | |
Detailed Description
This is an abstract base class for all picking actions. Currently, the only supported subclass is the SoRayPickAction.
- See Also
Definition at line 77 of file SoPickAction.h.
Constructor & Destructor Documentation
| SoPickAction::SoPickAction | ( | const SbViewportRegion & | viewportRegion | ) | [protected] |
See comments for the setViewportRegion() method.
| virtual SoPickAction::~SoPickAction | ( | ) | [protected, virtual] |
Member Function Documentation
| virtual void SoPickAction::beginTraversal | ( | SoNode * | node | ) | [protected, virtual] |
Reimplemented from SoAction.
Reimplemented in SoRayPickAction.
| void SoPickAction::enableCulling | ( | SbBool | flag | ) | [inline] |
This can be used for nodes (such as SoArray and SoMultipleCopy) that traverse their children multiple times in different locations, thereby avoiding computing bounding boxes each time. (This problem is very severe when each bounding box traversal also traverses the children N times.) The default setting is TRUE.
Definition at line 99 of file SoPickAction.h.
| const SbViewportRegion& SoPickAction::getViewportRegion | ( | ) | const [inline] |
Definition at line 89 of file SoPickAction.h.
| static void SoPickAction::initClass | ( | ) | [static] |
Reimplemented from SoAction.
Reimplemented in SoRayPickAction.
| SbBool SoPickAction::isCullingEnabled | ( | ) | const [inline] |
Definition at line 100 of file SoPickAction.h.
| void SoPickAction::setViewportRegion | ( | const SbViewportRegion & | newRegion | ) |
Even though the picking operation may not involve a window per se, some nodes need this information to determine their size and placement.
Member Data Documentation
SbViewportRegion SoPickAction::vpRegion [protected] |
Definition at line 106 of file SoPickAction.h.
The documentation for this class was generated from the following file:
- MeVis/ThirdParty/Sources/Inventor/inventor/lib/database/include/Inventor/actions/SoPickAction.h
