2 * Copyright © 2011 Keith Packard <keithp@keithp.com>
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 2 of the License, or
7 * (at your option) any later version.
9 * This program is distributed in the hope that it will be useful, but
10 * WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * General Public License for more details.
14 * You should have received a copy of the GNU General Public License along
15 * with this program; if not, write to the Free Software Foundation, Inc.,
16 * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
19 package org.altusmetrum.altoslib_11;
22 public class AltosTelemetryLocation extends AltosTelemetryStandard {
41 public static final int AO_GPS_MODE_ALTITUDE_24 = (1 << 0); /* Reports 24-bits of altitude */
43 public AltosTelemetryLocation(int[] bytes) {
48 longitude = uint32(12);
59 ground_speed = uint16(26);
60 climb_rate = int16(28);
63 if ((mode & AO_GPS_MODE_ALTITUDE_24) != 0) {
64 altitude = (int8(31) << 16) | uint16(6);
69 public void update_state(AltosState state) {
70 super.update_state(state);
71 AltosGPS gps = state.make_temp_gps(false);
73 gps.nsat = flags & 0xf;
74 gps.locked = (flags & (1 << 4)) != 0;
75 gps.connected = (flags & (1 << 5)) != 0;
78 gps.lat = latitude * 1.0e-7;
79 gps.lon = longitude * 1.0e-7;
81 gps.year = 2000 + year;
87 gps.ground_speed = ground_speed * 1.0e-2;
88 gps.course = course * 2;
89 gps.climb_rate = climb_rate * 1.0e-2;
90 gps.pdop = pdop / 10.0;
91 gps.hdop = hdop / 10.0;
92 gps.vdop = vdop / 10.0;