2 * Copyright © 2009 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.
23 static int pad_pres_total;
24 static int pad_accel_total;
25 static double pad_lat_total;
26 static double pad_lon_total;
27 static int pad_alt_total;
31 static double prev_accel;
32 static double pad_lat;
33 static double pad_lon;
34 static double pad_alt;
35 static double min_pres;
36 static double min_accel;
38 #define NUM_PAD_SAMPLES 10
41 aoview_great_circle (double start_lat, double start_lon,
42 double end_lat, double end_lon,
43 double *dist, double *bearing)
45 double rad = M_PI / 180;
46 double earth_radius = 6371.2;
47 double lat1 = rad * start_lat;
48 double lon1 = -rad * start_lon;
49 double lat2 = rad * end_lat;
50 double lon2 = -rad * end_lon;
52 double d = acos(sin(lat1)*sin(lat2)+cos(lat1)*cos(lat2)*cos(lon1-lon2));
53 double argacos = (sin(lat2)-sin(lat1)*cos(d))/(sin(d)*cos(lat1));
55 if (sin(lon2-lon1) < 0)
58 crs = 2 * M_PI - acos(argacos);
59 *dist = d * earth_radius;
60 *bearing = crs * 180/M_PI;
64 aoview_state_add_deg(char *label, double deg)
69 int_part = floor (deg);
70 min = (deg - int_part) * 60.0;
71 aoview_table_add_row(label, "%d°%lf'",
77 aoview_state_notify(struct aostate *state)
87 double drogue_sense, main_sense;
90 if (!strcmp(state->state, "pad")) {
91 if (npad < NUM_PAD_SAMPLES) {
92 pad_accel_total += state->flight_accel;
93 pad_pres_total += state->flight_pres;
95 pad_lat_total += state->lat;
96 pad_lon_total += state->lon;
97 pad_alt_total += state->alt;
102 if (npad <= NUM_PAD_SAMPLES) {
103 pad_pres = pad_pres_total / npad;
104 pad_accel = pad_accel_total / npad;
106 pad_lat = pad_lat_total / npad_gps;
107 pad_lon = pad_lon_total / npad_gps;
108 pad_alt = pad_alt_total / npad_gps;
111 if (npad == NUM_PAD_SAMPLES) {
114 min_accel = pad_accel;
117 if (state->flight_pres < min_pres)
118 min_pres = state->flight_pres;
119 if (state->flight_accel < min_accel)
120 min_accel = state->flight_accel;
121 altitude = aoview_pres_to_altitude(state->flight_pres) - aoview_pres_to_altitude(pad_pres);
122 accel = (pad_accel - state->flight_accel) / 27.0;
123 velocity = state->flight_vel / 2700.0;
124 max_accel = (pad_accel - min_accel) / 27.0;
125 ticks = state->tick - prev_tick;
126 temp = ((state->temp / 32767.0 * 3.3) - 0.5) / 0.01;
127 battery = (state->batt / 32767.0 * 5.0);
128 drogue_sense = (state->drogue / 32767.0 * 15.0);
129 main_sense = (state->main / 32767.0 * 15.0);
132 prev_tick = state->tick;
133 aoview_table_start();
135 if (npad >= NUM_PAD_SAMPLES)
136 aoview_table_add_row("Ground state", "ready");
138 aoview_table_add_row("Ground state", "preparing (%d)",
139 NUM_PAD_SAMPLES - npad);
140 aoview_table_add_row("Rocket state", "%s", state->state);
141 aoview_table_add_row("Callsign", "%s", state->callsign);
142 aoview_table_add_row("Rocket serial", "%d", state->serial);
144 aoview_table_add_row("RSSI", "%ddB", state->rssi);
145 aoview_table_add_row("Height", "%dm", altitude);
146 aoview_table_add_row("Max height", "%dm",
147 aoview_pres_to_altitude(min_pres) -
148 aoview_pres_to_altitude(pad_pres));
149 aoview_table_add_row("Acceleration", "%gm/s²", accel);
150 aoview_table_add_row("Max acceleration", "%gm/s²", max_accel);
151 aoview_table_add_row("Velocity", "%gm/s", velocity);
152 aoview_table_add_row("Temperature", "%g°C", temp);
153 aoview_table_add_row("Battery", "%gV", battery);
154 aoview_table_add_row("Drogue", "%gV", drogue_sense);
155 aoview_table_add_row("Main", "%gV", main_sense);
156 aoview_table_add_row("Pad altitude", "%dm", aoview_pres_to_altitude(pad_pres));
157 aoview_table_add_row("Satellites", "%d", state->nsat);
159 aoview_state_add_deg("Latitude", state->lat);
160 aoview_state_add_deg("Longitude", state->lon);
161 aoview_table_add_row("GPS alt", "%d", state->alt);
162 aoview_table_add_row("GPS time", "%02d:%02d:%02d",
163 state->gps_time.hour,
164 state->gps_time.minute,
165 state->gps_time.second);
166 aoview_great_circle(pad_lat, pad_lon, state->lat, state->lon,
168 aoview_table_add_row("Distance from pad", "%gm", dist * 1000);
169 aoview_table_add_row("Direction from pad", "%g°", bearing);
171 aoview_table_add_row("GPS", "unlocked");
174 aoview_state_add_deg("Pad latitude", pad_lat);
175 aoview_state_add_deg("Pad longitude", pad_lon);
176 aoview_table_add_row("Pad GPS alt", "%gm", pad_alt);
178 aoview_table_finish();
182 aoview_state_new(void)
203 aoview_state_init(GladeXML *xml)