onPinchStart method

dynamic onPinchStart()

Implementation

onPinchStart() {
  if (enabled && enableZoom) {
    dispatchEvent(_startEvent);
    updateTbState(State2.scale, true);

    _startFingerDistance = calculatePointersDistance(_touchCurrent[0], _touchCurrent[1]);
    _currentFingerDistance = _startFingerDistance;

    activateGizmos(false);
  }
}