zoomIn method

void zoomIn()

Implementation

void zoomIn() {
  if (_mapViewPosition == null) return;
  if (_mapViewPosition!.zoomLevel >= displayModel.maxZoomLevel) return;
  MapViewPosition newPosition = MapViewPosition.zoomIn(_mapViewPosition!);
  _mapViewPosition = newPosition;
  _injectPosition.add(newPosition);
}