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; version 2 of the License.
8 * This program is distributed in the hope that it will be useful, but
9 * WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
11 * General Public License for more details.
13 * You should have received a copy of the GNU General Public License along
14 * with this program; if not, write to the Free Software Foundation, Inc.,
15 * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
18 package org.altusmetrum.altoslib_5;
21 public class AltosTelemetryLocation extends AltosTelemetryStandard {
40 public static final int AO_GPS_MODE_ALTITUDE_24 = (1 << 0); /* Reports 24-bits of altitude */
42 public AltosTelemetryLocation(int[] bytes) {
47 longitude = uint32(12);
58 ground_speed = uint16(26);
59 climb_rate = int16(28);
62 if ((mode & AO_GPS_MODE_ALTITUDE_24) != 0) {
63 altitude = (int8(31) << 16) | uint16(6);
68 public void update_state(AltosState state) {
69 super.update_state(state);
70 AltosGPS gps = state.make_temp_gps(false);
72 gps.nsat = flags & 0xf;
73 gps.locked = (flags & (1 << 4)) != 0;
74 gps.connected = (flags & (1 << 5)) != 0;
77 gps.lat = latitude * 1.0e-7;
78 gps.lon = longitude * 1.0e-7;
80 gps.year = 2000 + year;
86 gps.ground_speed = ground_speed * 1.0e-2;
87 gps.course = course * 2;
88 gps.climb_rate = climb_rate * 1.0e-2;
89 gps.pdop = pdop / 10.0;
90 gps.hdop = hdop / 10.0;
91 gps.vdop = vdop / 10.0;