SceneInteractor Class Reference
[Nodes]
Base class for building a basic OpenInventor application without using the classic viewer classes. More...
#include <Inventor/ViewerComponents/nodes/SceneInteractor.h>
Public Types | |
| enum | CameraMode { PERSPECTIVE, ORTHOGRAPHIC } |
Public Member Functions | |
| SceneInteractor () | |
| virtual | ~SceneInteractor () |
| void | adjustClippingPlanes (const SbViewportRegion &vpRegion) |
| void | viewAll (const SbViewportRegion &viewport) |
| void | viewAxis (const SbVec3f &direction, const SbVec3f &up) |
| SoCameraInteractor * | getCameraInteractor () |
| SoCamera * | getCamera () const |
| virtual void | setCameraMode (SceneInteractor::CameraMode mode) |
| SceneInteractor::CameraMode | getCameraMode () |
| void | enableHeadLight (bool enabled) |
| bool | isHeadLightEnabled () |
Detailed Description
Base class for building a basic OpenInventor application without using the classic viewer classes.
The SceneInteractor is a simple extension of the SoSeparator node that allows handling of Open Inventor events. This class should be overridden as it provides only empty event handlers. See, for example, SceneExaminer and SceneOrbiter.
This node is intended to be used as the root of a scene graph. The SceneInteractor is a custom SoSeparator whose children are:
- An SoEventCallback node that handles keyboard, mouse and touch events.
- A camera (switch between perspective and orthographic camera).
- A headlight.
- The application's scene graph, which should be the last child.
The SceneInteractor uses an instance of SoCameraInteractor in order to manipulate the camera in response to OpenInventor events.
Class diagram of the SceneInteractor showing the relationship between the SoEventCallback, the SoCamera, the SoDirectionalLight (used as headlight) and the SoCameraInteractor.
Detail of the scene graph rooted by a SceneInteractor:
Notes:
- A basic version of SceneInteractor is a supported part of the Open Inventor API, but the prebuilt library is located in the example folders, not in the usual folder.
- The basic version of SceneInteractor is also provided as source code in the example folders to allow applications to customize and build their own interactive tool class.
See $OIVHOME/source/Inventor/gui/ViewerComponents
- This class can only be used with ViewerComponents and will not work with other viewer (like SoXtRenderArea)
SEE ALSO
SceneExaminer, SoCameraInteractor
Member Enumeration Documentation
Constructor & Destructor Documentation
| SceneInteractor::SceneInteractor | ( | ) |
Constructor.
| virtual SceneInteractor::~SceneInteractor | ( | ) | [virtual] |
Destructor.
Member Function Documentation
| void SceneInteractor::adjustClippingPlanes | ( | const SbViewportRegion & | vpRegion | ) |
Adjust near and far clipping planes to minimize clipping of objects in the scene.
This adjustment, based on the bounding box of the scene, ensures that shapes will not be clipped and also that depth buffer precision is maximized. This method should be called before each render traversal.
| void SceneInteractor::enableHeadLight | ( | bool | enabled | ) |
Enable or disable headlight.
Default is true.
| SoCamera* SceneInteractor::getCamera | ( | ) | const |
Returns the current camera.
| SoCameraInteractor* SceneInteractor::getCameraInteractor | ( | ) |
Returns the current camera interactor.
| SceneInteractor::CameraMode SceneInteractor::getCameraMode | ( | ) |
Returns the current camera mode.
| bool SceneInteractor::isHeadLightEnabled | ( | ) |
Returns if headlight is enabled.
| virtual void SceneInteractor::setCameraMode | ( | SceneInteractor::CameraMode | mode | ) | [virtual] |
Select perspective or orthographic camera.
Default is perspective.
Reimplemented in SceneExaminer, and SceneOrbiter.
| void SceneInteractor::viewAll | ( | const SbViewportRegion & | viewport | ) |
Moves the camera to be aligned with the given direction vector while keeping the "up" direction of the camera parallel to the specified up vector.
The documentation for this class was generated from the following file:
- Inventor/ViewerComponents/nodes/SceneInteractor.h