if (waypoint_marker) {
//waypoint marker computation
float fromwp_lat, towp_lat, fromwp_lon, towp_lon, dist, delx, dely, hyp, theta, brg;
if (waypoint_marker) {
//waypoint marker computation
float fromwp_lat, towp_lat, fromwp_lon, towp_lon, dist, delx, dely, hyp, theta, brg;