-//bool FGAIGroundVehicle::getGroundElev(SGGeod inpos) {
-//
-// double height_m ;
-//
-// if (globals->get_scenery()->get_elevation_m(SGGeod::fromGeodM(inpos, 3000), height_m, &_material,0)){
-// _ht_agl_ft = inpos.getElevationFt() - height_m * SG_METER_TO_FEET;
-//
-// if (_material) {
-// const vector<string>& names = _material->get_names();
-//
-// _solid = _material->get_solid();
-//
-// if (!names.empty())
-// props->setStringValue("material/name", names[0].c_str());
-// else
-// props->setStringValue("material/name", "");
-//
-// //cout << "material " << names[0].c_str()
-// // << " _elevation_m " << _elevation_m
-// // << " solid " << _solid
-// // << " load " << _load_resistance
-// // << " frictionFactor " << _frictionFactor
-// // << endl;
-//
-// }
-//
-// return true;
-// } else {
-// return false;
-// }
-//
-//}
-