private OsmNodeNamed readPosition(final String vlon, final String vlat, final String name) {
        if (vlon == null) {
            throw new IllegalArgumentException("lon " + name + " not found in input");
        }
        if (vlat == null) {
            throw new IllegalArgumentException("lat " + name + " not found in input");
        }

        return readPosition(Double.parseDouble(vlon), Double.parseDouble(vlat), name);
    }
get a list of points (old style, positions only)

@param lons  array with longitudes
@param lats  array with latitudes
@return      a list
main/src/main/java/cgeo/geocaching/brouter/core/RoutingParamCollector.java