onPointerUp method
      
void
onPointerUp(
    
    
- dynamic event
Implementation
void onPointerUp(event) {
  removePointer(event);
  if (pointers.isEmpty) {
    //scope.domElement.releasePointerCapture(event.pointerId);
    scope.domElement.removeEventListener(PeripheralType.pointermove, onPointerMove);
    scope.domElement.removeEventListener(PeripheralType.pointerup, onPointerUp);
  }
  scope.dispatchEvent(_endEvent);
  state = OrbitState.none;
}