zoomInAround method
Implementation
void zoomInAround(double latitude, double longitude) {
if (_mapViewPosition == null) return;
if (_mapViewPosition!.zoomLevel >= displayModel.maxZoomLevel) return;
MapViewPosition newPosition =
MapViewPosition.zoomInAround(_mapViewPosition!, latitude, longitude);
_mapViewPosition = newPosition;
_injectPosition.add(newPosition);
}