PlaneSensor

  PlaneSensor { 
      exposedField SFBool  autoOffset          TRUE
      exposedField SFBool  enabled             TRUE
      exposedField SFVec2f maxPosition         -1 -1     # (-,)
      exposedField SFVec2f minPosition         0 0       # (-,)
      exposedField SFVec3f offset              0 0 0     # (-,)
      eventOut     SFBool  isActive
      eventOut     SFVec3f trackPoint_changed
      eventOut     SFVec3f translation_changed
    }