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SoTrackerEvent Class

3D tracker event.

Inheritance Hierarchy
SystemObject
  OIV.InventorSoNetBase
    OIV.Inventor.EventsSoEvent
      OIV.Inventor.EventsSoTrackerEvent

Namespace: OIV.Inventor.Events
Assembly: OIV.Inventor (in OIV.Inventor.dll) Version: 10.12.3.0 (10.12.3.0)
Syntax
public class SoTrackerEvent : SoEvent

The SoTrackerEvent type exposes the following members.

Constructors
  NameDescription
Public methodSoTrackerEvent

Constructor.

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Methods
  NameDescription
Public methodEquals
Determines whether the specified Object is equal to the current Object.
(Inherited from Object.)
Public methodGetHashCode
Overrides GetHashCode().
(Inherited from SoNetBase.)
Public methodGetNormalizedPosition

Gets the normalized location of the cursor when the event occurred, relative to the specified viewport region.

(Inherited from SoEvent.)
Public methodGetOrientation

Get orientation of associated tracker as a standard Open Inventor rotation (quaternion).

Public methodGetPosition

Returns the window pixel location of the cursor when the event occurred as integer values.

(Inherited from SoEvent.)
Public methodGetPosition(SbViewportRegion)

Gets the viewport pixel location of the cursor when the event occurred, relative to the origin of the specified viewport region, as integer values.

(Inherited from SoEvent.)
Public methodGetPosition3

Get position of associated tracker in world coordinates.

Public methodGetPositionFloat

Returns the window pixel location of the cursor when the event occurred as float values.

(Inherited from SoEvent.)
Public methodGetPositionFloat(SbViewportRegion)

Gets the viewport pixel location of the cursor when the event occurred, relative to the origin of the specified viewport region, as float values.

(Inherited from SoEvent.)
Public methodGetRay

Get a ray for picking/intersecting.

Public methodGetTime

Gets the time at which the event occurred.

(Inherited from SoEvent.)
Public methodGetTrackerInfo

Gets whether an event object has associated tracker information.

(Inherited from SoEvent.)
Public methodGetType
Gets the Type of the current instance.
(Inherited from Object.)
Public methodSetAltDown

Sets whether the ALT key was down when the event occurred.

(Inherited from SoEvent.)
Public methodSetButton1Down

Sets whether mouse Button 1 was down when the event occurred.

(Inherited from SoEvent.)
Public methodSetCtrlDown

Sets whether the CTRL key was down when the event occurred.

(Inherited from SoEvent.)
Public methodSetOrientation(SbRotation)

Set orientation value of associated tracker from an OIV.Inventor.SbRotation.

Public methodSetOrientation(SbVec3f, Single)

Set orientation value of associated tracker from axis and angle in radians.

Public methodSetOrientation(Single, Single, Single)

Set orientation value of associated tracker from Euler angles in radians (using the trackd convention Z*X*Y).

Public methodSetPosition(SbVec2f) (Inherited from SoEvent.)
Public methodSetPosition(SbVec2s)

Sets the window pixel location of the cursor when the event occurred.

(Inherited from SoEvent.)
Public methodSetPosition3

Set position of associated tracker in world coordinates.

Public methodSetShiftDown

Sets whether the shift key was down when the event occurred.

(Inherited from SoEvent.)
Public methodSetTime

Sets the time at which the event occurred.

(Inherited from SoEvent.)
Public methodToString
Returns a string that represents the current object.
(Inherited from Object.)
Public methodTrackerInfo

Returns the OIV.Inventor.SbTrackerInfo object.

Public methodWasAltDown

Returns true if the ALT key was down when the event occurred.

(Inherited from SoEvent.)
Public methodWasButton1Down

Returns true if mouse button 1 was down when the event occurred.

(Inherited from SoEvent.)
Public methodWasCtrlDown

Returns true if the CTRL key was down when the event occurred.

(Inherited from SoEvent.)
Public methodWasShiftDown

Returns true if the shift key was down when the event occurred.

(Inherited from SoEvent.)
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Remarks

OIV.Inventor.Events.SoTrackerEvent represents 3D position and orientation events in the Open Inventor event model.

A "tracker" is any device whose position and orientation are dynamically tracked in 3D, typically for immersive VR applications. For example: a head tracker. A "controller" is an input device which typically has buttons and/or valuators (e.g. a joystick). Many controllers have an associated tracker. For example, the commonly used "wand" input device has three buttons, a two-axis joystick (two valuators), and an associated tracker.

The virtual method OIV.Inventor.Events.SoEvent.GetTrackerInfo() can be used to determine if an event object has associated tracker information. Traditional 2D events like OIV.Inventor.Events.SoMouseButtonEvent and OIV.Inventor.Events.SoLocation2Event return NULL. 3D events like OIV.Inventor.Events.SoTrackerEvent and OIV.Inventor.Events.SoControllerButtonEvent return their associated tracker information (OIV.Inventor.SbTrackerInfo).

Many tracker devices generate a continuous stream of position and orientation reports, so strictly speaking there are no "events." Generally Open Inventor classes that recognize the OIV.Inventor.Events.SoTrackerEvent interpret it as notification of a "significant" change in the tracker position and/or orientation. Processing of SoTrackerEvents may be relatively expensive. For example, a pick operation will usually be done automatically. The application (or other software above Open Inventor) is responsible for deciding when to actually create an OIV.Inventor.Events.SoTrackerEvent.

See Also