Class SoRotateSphericalDragger

  • All Implemented Interfaces:

    public class SoRotateSphericalDragger
    extends SoDragger
    Object you can rotate about a spherical surface by dragging with the mouse. SoRotateSphericalDragger is a simple dragger that rotates freely in all directions. The feel of the rotation is as if you were rolling a ball. The center of rotation is the origin of the local space, determined by the dragger's location in the scene graph. Transformation nodes placed before it will affect both the dragger and the direction of motion.

    This node has a rotation field which always reflects its orientation in local space. If you set the field, the dragger will rotate accordingly. You can also connect fields of other nodes or engines from this one to make them follow the dragger's orientation.

    This dragger contains four parts, rotator , rotatorActive , feedback , and feedbackActive .

    Each of these is set by default from a resource described in the Dragger Resources section of the online reference page for this class. You can change the parts in any instance of this dragger using setPart().

    You can make your program use different default resources for the parts by copying the file $OIVHOME/data/draggerDefaults/rotateSphericalDragger.iv into your own directory, editing the file, and then setting the environment variable SO_DRAGGER_DIR to be a path to that directory.

    This dragger has both a default and a WYSIWYG version:

      Default Dragger WYSIWYG Dragger

    See SoDragger for more information about using and customizing draggers, including code examples, using draggers in an immersive VR environment and using WYSIWYG draggers.

    File format/default:

    RotateSphericalDragger {

      boundingBoxCaching AUTO
      renderCulling AUTO
      pickCulling AUTO
      isActive false
      rotation 0 0 1 0
      callbackList NULL
      rotator <rotateSphericalRotator resource>
      rotatorActive <rotateSphericalRotatorActive resource>
      feedback <rotateSphericalFeedback resource>
      feedbackActive <rotateSphericalFeedbackActive resource>


      Resource: rotateSphericalRotator
      Part: rotator
      Appearance: white sphere made of three intersecting circles. Each circle is in a different plane of local space
      Description: picking this initiates rotation

      Resource: rotateSphericalRotatorActive
      Part: rotatorActive
      Appearance: yellow version of rotator
      Description: displayed while in motion instead of the rotator

      Resource: rotateSphericalFeedback
      Part: feedback
      Appearance: thin purple 3-D crosshairs at origin
      Description: shows center of rotation when not moving

      Resource: rotateSphericalFeedbackActive
      Part: feedbackActive
      Appearance: thin, slightly brighter purple 3-D crosshairs at origin
      Description: shows center of rotation when moving


    All Parts

      Part NamePart TypeDefault TypeNULL Default
      callbackList NodeKitListPart yes
      rotator Separator yes
      rotatorActive Separator yes
      feedback Separator yes
      feedbackActive Separator yes

    Extra Information for List Parts from Above Table

      Part NameContainer TypePossible Types
      callbackList Separator Callback, EventCallback

    See Also:
    SoInteractionKit, SoDragger, SoCenterballDragger, SoDirectionalLightDragger, SoDragPointDragger, SoHandleBoxDragger, SoJackDragger, SoPointLightDragger, SoRotateCylindricalDragger, SoRotateDiscDragger, SoScale1Dragger, SoScale2Dragger, SoScale2UniformDragger, SoScaleUniformDragger, SoSpotLightDragger, SoTabBoxDragger, SoTabPlaneDragger, SoTrackballDragger, SoTransformBoxDragger, SoTransformerDragger, SoTranslate1Dragger, SoTranslate2Dragger
    • Field Detail

      • rotation

        public final SoSFRotation rotation
        Orientation of the dragger.
    • Constructor Detail

      • SoRotateSphericalDragger

        public SoRotateSphericalDragger()
    • Method Detail

      • setProjector

        public void setProjector​(SbSphereProjector p)
        Sets a different sphere projector. See the SbSphereProjector reference pages to find out how each kind affects the feel of your dragger's motion. The default uses an SbSpherePlaneProjector.

        Passing in NULL will cause the default type of projector to be used. Any projector you pass in will be deleted by this dragger when this dragger is deleted. Note that the center and radius of the sphere are determined by the dragger, based on the origin of the local space and the distance between the initial mouse click and that origin.