- SGLocation *view_location = globals->get_current_view()->getSGLocation();
- globals->get_tile_mgr()->update( view_location, visibility_meters );
- {
- double lon = view_location->getLongitude_deg();
- double lat = view_location->getLatitude_deg();
- double alt = view_location->getAltitudeASL_ft() * SG_FEET_TO_METER;
-
- // check if we can reuse the groundcache for that purpose.
- double ref_time, r;
- SGVec3d pt;
- bool valid = cur_fdm_state->is_valid_m(&ref_time, pt.sg(), &r);
- SGVec3d viewpos(globals->get_current_view()->get_view_pos());
- if (valid && distSqr(viewpos, pt) < r*r) {
- // Reuse the cache ...
- double lev
- = cur_fdm_state->get_groundlevel_m(lat*SGD_DEGREES_TO_RADIANS,
- lon*SGD_DEGREES_TO_RADIANS,
- alt + 2.0);
- view_location->set_cur_elev_m( lev );
- } else {
- // Do full intersection test.
- double lev;
- if (globals->get_scenery()->get_elevation_m(lat, lon, alt+2, lev, 0))
- view_location->set_cur_elev_m( lev );
- else
- view_location->set_cur_elev_m( -9999.0 );
- }
- }
+ SGVec3d viewPos = globals->get_current_view()->get_view_pos();
+ SGGeod geodViewPos = SGGeod::fromCart(viewPos);
+ globals->get_tile_mgr()->update(geodViewPos, visibility_meters);