SphereSensor Node

The SphereSensor node maps the mouse movement into a surface of a conceptual sphere, rotating the shape about the center of its local coordinate system. See Dragging Sensors for more information on this type of sensors.

Syntax:

SphereSensor {

enabled TRUE

offset 0 1 0 0

autoOffset TRUE

}

In addition to the exposed fields presented in the syntax the SphereSensor node generates the following events (see Dragging Sensors for a description of their meaning):

isActive (boolean)

rotation_changed (3D vector plus angle)

trackPoint_changed (3D point)

Example: Using a SphereSensor to rotate a Box.

First one needs to create a group node which will include both the sensor and a Transform node containg a Box geometry.

Example:

#VRML V2.0 utf8

Group {

children [

DEF ss SphereSensor {}

DEF tr Transform {

children Shape {geometry Box {}}

}

]

}

Now we need to create a route between the eventOut rotation_changed from the SphereSensor to the exposed field rotation of the Transform node. The route to achieve this is:

ROUTE ss.rotation_changed TO tr.set_rotation

Note: On the VRML example provided the axes are not inside the same group as the sensor.