// track_start = defaults->get("TRACK_START", 0);
// view_start = defaults->get("VIEW_START", 0);
zoom_sample = defaults->get("ZOOM_SAMPLE", DEFAULT_ZOOM_TIME);
// track_start = defaults->get("TRACK_START", 0);
// view_start = defaults->get("VIEW_START", 0);
zoom_sample = defaults->get("ZOOM_SAMPLE", DEFAULT_ZOOM_TIME);