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   1 /*
   2  * Copyright © 2010 Keith Packard <keithp@keithp.com>
   3  *
   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.
   7  *
   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.
  12  *
  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.
  16  */
  17
  18 package altosui;
  19
  20 import java.io.*;
  21 import org.altusmetrum.altoslib_2.*;
  22
  23 public class AltosKML implements AltosWriter {
  24
  25         File                    name;
  26         PrintStream             out;
  27         int                     flight_state = -1;
  28         AltosState              prev = null;
  29         double                  gps_start_altitude;
  30
  31         static final String[] kml_state_colors = {
  32                 "FF000000",
  33                 "FF000000",
  34                 "FF000000",
  35                 "FF0000FF",
  36                 "FF4080FF",
  37                 "FF00FFFF",
  38                 "FFFF0000",
  39                 "FF00FF00",
  40                 "FF000000",
  41                 "FFFFFFFF"
  42         };
  43
  44         static final String kml_header_start =
  45                 "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n" +
  46                 "<kml xmlns=\"http://www.opengis.net/kml/2.2\">\n" +
  47                 "<Document>\n" +
  48                 "  <name>AO Flight#%d S/N: %03d</name>\n" +
  49                 "  <description>\n";
  50         static final String kml_header_end =
  51                 "  </description>\n" +
  52                 "  <open>0</open>\n";
  53
  54         static final String kml_style_start =
  55                 "  <Style id=\"ao-flightstate-%s\">\n" +
  56                 "    <LineStyle><color>%s</color><width>4</width></LineStyle>\n" +
  57                 "    <BalloonStyle>\n" +
  58                 "      <text>\n";
  59
  60         static final String kml_style_end =
  61                 "      </text>\n" +
  62                 "    </BalloonStyle>\n" +
  63                 "  </Style>\n";
  64
  65         static final String kml_placemark_start =
  66                 "  <Placemark>\n" +
  67                 "    <name>%s</name>\n" +
  68                 "    <styleUrl>#ao-flightstate-%s</styleUrl>\n" +
  69                 "    <LineString>\n" +
  70                 "      <tessellate>1</tessellate>\n" +
  71                 "      <altitudeMode>absolute</altitudeMode>\n" +
  72                 "      <coordinates>\n";
  73
  74         static final String kml_coord_fmt =
  75         "        %.7f,%.7f,%.7f <!-- alt %12.7f time %12.7f sats %d -->\n";
  76
  77         static final String kml_placemark_end =
  78                 "      </coordinates>\n" +
  79                 "    </LineString>\n" +
  80                 "  </Placemark>\n";
  81
  82         static final String kml_footer =
  83                 "</Document>\n" +
  84                 "</kml>\n";
  85
  86         void start (AltosState record) {
  87                 out.printf(kml_header_start, record.flight, record.serial);
  88                 out.printf("Date:   %04d-%02d-%02d\n",
  89                            record.gps.year, record.gps.month, record.gps.day);
  90                 out.printf("Time:     %2d:%02d:%02d\n",
  91                            record.gps.hour, record.gps.minute, record.gps.second);
  92                 out.printf("%s", kml_header_end);
  93         }
  94
  95         boolean started = false;
  96
  97         void state_start(AltosState state) {
  98                 String  state_name = Altos.state_name(state.state);
  99                 out.printf(kml_style_start, state_name, kml_state_colors[state.state]);
 100                 out.printf("\tState: %s\n", state_name);
 101                 out.printf("%s", kml_style_end);
 102                 out.printf(kml_placemark_start, state_name, state_name);
 103         }
 104
 105         void state_end(AltosState state) {
 106                 out.printf("%s", kml_placemark_end);
 107         }
 108
 109         void coord(AltosState state) {
 110                 AltosGPS        gps = state.gps;
 111                 double          altitude;
 112
 113                 if (state.height() != AltosLib.MISSING)
 114                         altitude = state.height() + gps_start_altitude;
 115                 else
 116                         altitude = gps.alt;
 117                 out.printf(kml_coord_fmt,
 118                            gps.lon, gps.lat,
 119                            altitude, (double) gps.alt,
 120                            state.time, gps.nsat);
 121         }
 122
 123         void end() {
 124                 out.printf("%s", kml_footer);
 125         }
 126
 127         public void close() {
 128                 if (prev != null) {
 129                         state_end(prev);
 130                         end();
 131                         prev = null;
 132                 }
 133         }
 134
 135         public void write(AltosState state) {
 136                 AltosGPS        gps = state.gps;
 137
 138                 if (gps == null)
 139                         return;
 140
 141                 if (gps.lat == AltosLib.MISSING)
 142                         return;
 143                 if (gps.lon == AltosLib.MISSING)
 144                         return;
 145                 if (!started) {
 146                         start(state);
 147                         started = true;
 148                         gps_start_altitude = gps.alt;
 149                 }
 150                 if (prev != null && prev.gps_sequence == state.gps_sequence)
 151                         return;
 152                 if (state.state != flight_state) {
 153                         flight_state = state.state;
 154                         if (prev != null) {
 155                                 coord(state);
 156                                 state_end(prev);
 157                         }
 158                         state_start(state);
 159                 }
 160                 coord(state);
 161                 prev = state;
 162         }
 163
 164         public void write(AltosStateIterable states) {
 165                 for (AltosState state : states) {
 166                         if ((state.set & AltosState.set_gps) != 0)
 167                                 write(state);
 168                 }
 169         }
 170
 171         public AltosKML(File in_name) throws FileNotFoundException {
 172                 name = in_name;
 173                 out = new PrintStream(name);
 174         }
 175
 176         public AltosKML(String in_string) throws FileNotFoundException {
 177                 this(new File(in_string));
 178         }
 179 }