+ if (altitude != AltosRecord.MISSING && ground_altitude != AltosRecord.MISSING) {
+ double cur_height = altitude - ground_altitude;
+ if (prev_state == null || prev_state.height == AltosRecord.MISSING)
+ height = cur_height;
+ else
+ height = (prev_state.height * 15 + cur_height) / 16.0;
+ }