onDoublePanMove method

void onDoublePanMove()

Implementation

void onDoublePanMove() {
  if (enabled && enablePan) {
    setCenter(
        (_touchCurrent[0].clientX + _touchCurrent[1].clientX) / 2,
        (_touchCurrent[0].clientY + _touchCurrent[1].clientY) / 2);

    if (_state != State2.pan) {
      updateTbState(State2.pan, true);
      _startCursorPosition.setFrom(_currentCursorPosition);
    }

    _currentCursorPosition.setFrom(
      unprojectOnTbPlane(
        camera, _center.x, _center.y, true
      )
    );
    applyTransformMatrix(pan(_startCursorPosition, _currentCursorPosition, true));
    dispatchEvent(_changeEvent);
  }
}