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Diffstat (limited to 'altoslib/AltosTelemetryRecordLocation.java')
| -rw-r--r-- | altoslib/AltosTelemetryRecordLocation.java | 93 |
1 files changed, 93 insertions, 0 deletions
diff --git a/altoslib/AltosTelemetryRecordLocation.java b/altoslib/AltosTelemetryRecordLocation.java new file mode 100644 index 00000000..cddb773d --- /dev/null +++ b/altoslib/AltosTelemetryRecordLocation.java @@ -0,0 +1,93 @@ +/* + * Copyright © 2011 Keith Packard <keithp@keithp.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. + */ + +package org.altusmetrum.AltosLib; + + +public class AltosTelemetryRecordLocation extends AltosTelemetryRecordRaw { + int flags; + int altitude; + int latitude; + int longitude; + int year; + int month; + int day; + int hour; + int minute; + int second; + int pdop; + int hdop; + int vdop; + int mode; + int ground_speed; + int climb_rate; + int course; + + public AltosTelemetryRecordLocation(int[] in_bytes) { + super(in_bytes); + + flags = uint8(5); + altitude = int16(6); + latitude = uint32(8); + longitude = uint32(12); + year = uint8(16); + month = uint8(17); + day = uint8(18); + hour = uint8(19); + minute = uint8(20); + second = uint8(21); + pdop = uint8(22); + hdop = uint8(23); + vdop = uint8(24); + mode = uint8(25); + ground_speed = uint16(26); + climb_rate = int16(28); + course = uint8(30); + } + + public AltosRecord update_state(AltosRecord previous) { + AltosRecord next = super.update_state(previous); + + if (next.gps == null) + next.gps = new AltosGPS(); + + next.gps.nsat = flags & 0xf; + next.gps.locked = (flags & (1 << 4)) != 0; + next.gps.connected = (flags & (1 << 5)) != 0; + + if (next.gps.locked) { + next.gps.lat = latitude * 1.0e-7; + next.gps.lon = longitude * 1.0e-7; + next.gps.alt = altitude; + next.gps.year = 2000 + year; + next.gps.month = month; + next.gps.day = day; + next.gps.hour = hour; + next.gps.minute = minute; + next.gps.second = second; + next.gps.ground_speed = ground_speed * 1.0e-2; + next.gps.course = course * 2; + next.gps.climb_rate = climb_rate * 1.0e-2; + next.gps.hdop = hdop; + next.gps.vdop = vdop; + next.seen |= AltosRecord.seen_gps_time | AltosRecord.seen_gps_lat | AltosRecord.seen_gps_lon; + next.new_gps = true; + } + + return next; + } +} |