@Override
    public void reloadIndividualRoute() {
        if (individualRoute != null) {
            individualRoute.reloadRoute((route) -> {
                overlayPositionAndScale.updateIndividualRoute(route);
                updateRouteTrackButtonVisibility();
                mapView.repaintRequired(overlayPositionAndScale instanceof GeneralOverlay ? ((GeneralOverlay) overlayPositionAndScale) : null);
            });
        }
    }
Set the zoom of the map. The zoom is restricted to a certain minimum in case of live map.
main/src/main/java/cgeo/geocaching/maps/CGeoMap.java