introduce optional class

for things that may or may not have a value.
demonstrate usage with computed_trkdata.

diff --git a/defs.h b/defs.h
index cbabfc1ccd3e8f1496241cc1a8f5c54ef7a40604..2958bc15fbff048dfe596213d22cf790200f7733 100644 (file)
--- a/defs.h
+++ b/defs.h
@@ -36,7 +36,8 @@
 
 #include <QtCore/QString>
 
-# include "src/core/datetime.h"
+#include "src/core/datetime.h"
+#include "src/core/optional.h"
 
 #define CSTR(qstr) (qstr.toUtf8().constData())
 #define CSTRc(qstr) (qstr.toLatin1().constData())
@@ -628,22 +629,22 @@ waypt_disp_all(T cb)
 }
 
 /*
- *  Structure of recomputed track/roue data.
+ *  Structure of recomputed track/route data.
  */
-typedef struct {
-  double       distance_meters;
-  double       max_alt;        /*  unknown_alt => invalid */
-  double       min_alt;        /* -unknown_alt => invalid */
-  double       max_spd;        /* Meters/sec */
-  double       min_spd;        /* Meters/sec */
-  double       avg_hrt;        /* Avg Heartrate */
-  double       avg_cad;        /* Avg Cadence */
-  time_t       start;          /* Min time */
-  time_t       end;            /* Max time */
-  int  min_hrt;        /* Min Heartrate */
-  int  max_hrt;        /* Max Heartrate */
-  int  max_cad;        /* Max Cadence */
-} computed_trkdata;
+struct computed_trkdata {
+  double distance_meters{0.0};
+  gpsbabel_optional::optional<double> max_alt; /* Meters */
+  gpsbabel_optional::optional<double> min_alt; /* Meters */
+  gpsbabel_optional::optional<double> max_spd; /* Meters/sec */
+  gpsbabel_optional::optional<double> min_spd; /* Meters/sec */
+  gpsbabel_optional::optional<double> avg_hrt; /* Avg Heartrate */
+  gpsbabel_optional::optional<double> avg_cad; /* Avg Cadence */
+  gpsbabel::DateTime start;            /* Min time */
+  gpsbabel::DateTime end;              /* Max time */
+  gpsbabel_optional::optional<int> min_hrt;                    /* Min Heartrate */
+  gpsbabel_optional::optional<int> max_hrt;                    /* Max Heartrate */
+  gpsbabel_optional::optional<int> max_cad;                    /* Max Cadence */
+};
 
 class route_head
 {
@@ -707,7 +708,7 @@ void route_backup(signed int* count, queue** head_bak);
 void route_restore(queue* head_bak);
 void track_backup(signed int* count, queue** head_bak);
 void track_restore(queue* head_bak);
-void track_recompute(const route_head* trk, computed_trkdata**);
+computed_trkdata track_recompute(const route_head* trk);
 
 template <typename T>
 void
@@ -1207,8 +1208,6 @@ int parse_distance(const char* str, double* val, double scale, const char* modul
 int parse_distance(const QString& str, double* val, double scale, const char* module);
 int parse_speed(const char* str, double* val, const double scale, const char* module);
 int parse_speed(const QString& str, double* val, const double scale, const char* module);
-time_t parse_date(const char* str, const char* format, const char* module);
-time_t parse_date(const QString& str, const char* format, const char* module);
 
 /*
  *  From util_crc.c

diff --git a/gpssim.cc b/gpssim.cc
index 277f87c445b3f359a5c44ca26b432d2e9b8605df..d5cd442ada246c605d623667e37f622839017206 100644 (file)
--- a/gpssim.cc
+++ b/gpssim.cc
@@ -149,7 +149,7 @@ gpssim_trk_hdr(const route_head* rh)
     QString ofname = QString("%1%2%3.gpssim").arg(fnamestr).arg(doing_tracks ? "-track" : "-route").arg(trk_count++, 4, 10, QChar('0'));
     fout = gbfopen(ofname, "wb", MYNAME);
   }
-  track_recompute(rh, nullptr);
+  (void) track_recompute(rh);
 }
 
 static void

diff --git a/gtrnctr.cc b/gtrnctr.cc
index 26434837041a0b39d007c2d3141698e50200f275..fe317c7571f2b77909ef190f5f2518296b8d6275 100644 (file)
--- a/gtrnctr.cc
+++ b/gtrnctr.cc
@@ -35,7 +35,6 @@ static int lap_ct = 0;
 static int lap_s = 0;
 static Waypoint* wpt_tmp;
 static route_head* trk_head;
-static computed_trkdata* tdata;
 
 #define MYNAME "gtc"
 
@@ -255,10 +254,10 @@ gtc_lap_start(const route_head*)
   gtc_most_time = gpsbabel::DateTime();
 }
 
-static void
+static computed_trkdata
 gtc_new_study_lap(const route_head* rte)
 {
-  track_recompute(rte, &tdata);  /* called routine allocates space for tdata */
+  return track_recompute(rte);
 }
 
 static void
@@ -339,7 +338,7 @@ gtc_waypt_pr(const Waypoint* wpt)
 }
 
 static void
-gtc_fake_hdr()
+gtc_fake_hdr(const computed_trkdata& tdata)
 {
   /* handle the CourseLap_t or the ActivityLap_t types. */
   /* note that the elements must appear in the order required by the schema. */
@@ -352,7 +351,7 @@ gtc_fake_hdr()
 
   /* write these in either case, course or activity format */
   gtc_write_xml(0, "<TotalTimeSeconds>%d</TotalTimeSeconds>\n", secs);
-  gtc_write_xml(0, "<DistanceMeters>%.2f</DistanceMeters>\n", tdata->distance_meters);
+  gtc_write_xml(0, "<DistanceMeters>%.2f</DistanceMeters>\n", tdata.distance_meters);
   if (gtc_course_flag) { /* course format */
     gtc_write_xml(1, "<BeginPosition>\n");
     gtc_write_xml(0, "<LatitudeDegrees>%lf</LatitudeDegrees>\n", gtc_start_lat);
@@ -364,24 +363,24 @@ gtc_fake_hdr()
     gtc_write_xml(-1,"</EndPosition>\n");
 
   } else {  /* activity (history) format */
-    if (tdata->max_spd) {
-      gtc_write_xml(0, "<MaximumSpeed>%.3f</MaximumSpeed>\n", tdata->max_spd);
+    if (tdata.max_spd) {
+      gtc_write_xml(0, "<MaximumSpeed>%.3f</MaximumSpeed>\n", *tdata.max_spd);
     }
     gtc_write_xml(0, "<Calories>0</Calories>\n"); /* element is required */
   }
-  if (tdata->avg_hrt) {
+  if (tdata.avg_hrt) {
     gtc_write_xml(1, "<AverageHeartRateBpm xsi:type=\"HeartRateInBeatsPerMinute_t\">\n");
-    gtc_write_xml(0, "<Value>%d</Value>\n", (int)(tdata->avg_hrt + 0.5));
+    gtc_write_xml(0, "<Value>%d</Value>\n", (int)(*tdata.avg_hrt + 0.5));
     gtc_write_xml(-1,"</AverageHeartRateBpm>\n");
   }
-  if (tdata->max_hrt) {
+  if (tdata.max_hrt) {
     gtc_write_xml(1, "<MaximumHeartRateBpm xsi:type=\"HeartRateInBeatsPerMinute_t\">\n");
-    gtc_write_xml(0, "<Value>%d</Value>\n", (int)(tdata->max_hrt + 0.5));
+    gtc_write_xml(0, "<Value>%d</Value>\n", *tdata.max_hrt);
     gtc_write_xml(-1,"</MaximumHeartRateBpm>\n");
   }
   gtc_write_xml(0, "<Intensity>Active</Intensity>\n");
-  if (tdata->avg_cad) {
-    gtc_write_xml(0, "<Cadence>%d</Cadence>\n", tdata->avg_cad);
+  if (tdata.avg_cad) {
+    gtc_write_xml(0, "<Cadence>%d</Cadence>\n", (int)(*tdata.avg_cad + 0.5));
   }
 
   if (!gtc_course_flag) { /* activity (history) format */
@@ -395,7 +394,7 @@ gtc_act_hdr(const route_head* rte)
 {
   gtc_write_xml(1, "<Activity Sport=\"%s\">\n", gtc_sportlist[gtc_sport]);
   gtc_lap_start(nullptr);
-  gtc_new_study_lap(rte);
+  computed_trkdata tdata = gtc_new_study_lap(rte);
   route_disp(rte, gtc_study_lap);
   if (gtc_least_time.isValid()) {
     gtc_write_xml(0, "<Id>%s</Id>\n",
@@ -405,8 +404,7 @@ gtc_act_hdr(const route_head* rte)
   } else {
     gtc_write_xml(1, "<Lap>\n");
   }
-  gtc_fake_hdr();
-  xfree(tdata);
+  gtc_fake_hdr(tdata);
   gtc_write_xml(1,"<Track>\n");
 }
 
@@ -424,7 +422,7 @@ gtc_crs_hdr(const route_head* rte)
 
   gtc_write_xml(1, "<Course>\n");
   gtc_lap_start(nullptr);
-  gtc_new_study_lap(rte);
+  computed_trkdata tdata = gtc_new_study_lap(rte);
   route_disp(rte, gtc_study_lap);
 
   if (!rte->rte_name.isEmpty()) {
@@ -435,9 +433,8 @@ gtc_crs_hdr(const route_head* rte)
   }
   /* write_optional_xml_entity(ofd, "      ", "Name", rte->rte_name); */
   gtc_write_xml(1, "<Lap>\n");
-  gtc_fake_hdr();
+  gtc_fake_hdr(tdata);
   gtc_write_xml(-1, "</Lap>\n");
-  xfree(tdata);
   gtc_write_xml(1,"<Track>\n");
 }
 

diff --git a/kml.cc b/kml.cc
index 2eed103d81c4a1933b0240e1ce0bb447f70c76c6..d0d1859ca28277b0cb12e20ebaf1def1dafb84fc 100644 (file)
--- a/kml.cc
+++ b/kml.cc
@@ -734,12 +734,8 @@ void kml_td(gpsbabel::XmlStreamWriter& hwriter, const QString& data)
  * Output the track summary.
  */
 static
-void kml_output_trkdescription(const route_head* header, computed_trkdata* td)
+void kml_output_trkdescription(const route_head* header, const computed_trkdata* td)
 {
-  const char* max_alt_units;
-  const char* min_alt_units;
-  const char* distance_units;
-
   if (!td || !trackdata) {
     return;
   }
@@ -747,10 +743,6 @@ void kml_output_trkdescription(const route_head* header, computed_trkdata* td)
   QString hstring;
   gpsbabel::XmlStreamWriter hwriter(&hstring);
 
-  double max_alt = fmt_altitude(td->max_alt, &max_alt_units);
-  double min_alt = fmt_altitude(td->min_alt, &min_alt_units);
-  double distance = fmt_distance(td->distance_meters, &distance_units);
-
   writer->writeEmptyElement(QStringLiteral("snippet"));
 
   writer->writeStartElement(QStringLiteral("description"));
@@ -759,55 +751,55 @@ void kml_output_trkdescription(const route_head* header, computed_trkdata* td)
   if (!header->rte_desc.isEmpty()) {
     kml_td(hwriter, QStringLiteral("Description"), QStringLiteral(" %1 ").arg(header->rte_desc));
   }
+  const char* distance_units;
+  double distance = fmt_distance(td->distance_meters, &distance_units);
   kml_td(hwriter, QStringLiteral("Distance"), QStringLiteral(" %1 %2 ").arg(QString::number(distance, 'f', 1)).arg(distance_units));
-  if (td->min_alt != -unknown_alt) {
+  if (td->min_alt) {
+    const char* min_alt_units;
+    double min_alt = fmt_altitude(*td->min_alt, &min_alt_units);
     kml_td(hwriter, QStringLiteral("Min Alt"), QStringLiteral(" %1 %2 ").arg(QString::number(min_alt, 'f', 3)).arg(min_alt_units));
   }
-  if (td->max_alt != unknown_alt) {
+  if (td->max_alt) {
+    const char* max_alt_units;
+    double max_alt = fmt_altitude(*td->max_alt, &max_alt_units);
     kml_td(hwriter, QStringLiteral("Max Alt"), QStringLiteral(" %1 %2 ").arg(QString::number(max_alt, 'f', 3)).arg(max_alt_units));
   }
   if (td->min_spd) {
     const char* spd_units;
-    double spd = fmt_speed(td->min_spd, &spd_units);
+    double spd = fmt_speed(*td->min_spd, &spd_units);
     kml_td(hwriter, QStringLiteral("Min Speed"), QStringLiteral(" %1 %2 ").arg(QString::number(spd, 'f', 1)).arg(spd_units));
   }
   if (td->max_spd) {
     const char* spd_units;
-    double spd = fmt_speed(td->max_spd, &spd_units);
+    double spd = fmt_speed(*td->max_spd, &spd_units);
     kml_td(hwriter, QStringLiteral("Max Speed"), QStringLiteral(" %1 %2 ").arg(QString::number(spd, 'f', 1)).arg(spd_units));
   }
-  if (td->max_spd && td->start && td->end) {
+  if (td->max_spd && td->start.isValid() && td->end.isValid()) {
     const char* spd_units;
-    time_t elapsed = td->end - td->start;
+    double elapsed = td->start.msecsTo(td->end)/1000.0;
     double spd = fmt_speed(td->distance_meters / elapsed, &spd_units);
     if (spd > 1.0)  {
       kml_td(hwriter, QStringLiteral("Avg Speed"), QStringLiteral(" %1 %2 ").arg(QString::number(spd, 'f', 1)).arg(spd_units));
     }
   }
   if (td->avg_hrt) {
-    kml_td(hwriter, QStringLiteral("Avg Heart Rate"), QStringLiteral(" %1 bpm ").arg(QString::number(td->avg_hrt, 'f', 1)));
+    kml_td(hwriter, QStringLiteral("Avg Heart Rate"), QStringLiteral(" %1 bpm ").arg(QString::number(*td->avg_hrt, 'f', 1)));
   }
-  if (td->min_hrt < td->max_hrt) {
-    kml_td(hwriter, QStringLiteral("Min Heart Rate"), QStringLiteral(" %1 bpm ").arg(QString::number(td->min_hrt)));
+  if (td->min_hrt) {
+    kml_td(hwriter, QStringLiteral("Min Heart Rate"), QStringLiteral(" %1 bpm ").arg(QString::number(*td->min_hrt)));
   }
   if (td->max_hrt) {
-    kml_td(hwriter, QStringLiteral("Max Heart Rate"), QStringLiteral(" %1 bpm ").arg(QString::number(td->max_hrt)));
+    kml_td(hwriter, QStringLiteral("Max Heart Rate"), QStringLiteral(" %1 bpm ").arg(QString::number(*td->max_hrt)));
   }
   if (td->avg_cad) {
-    kml_td(hwriter, QStringLiteral("Avg Cadence"), QStringLiteral(" %1 rpm ").arg(QString::number(td->avg_cad, 'f', 1)));
+    kml_td(hwriter, QStringLiteral("Avg Cadence"), QStringLiteral(" %1 rpm ").arg(QString::number(*td->avg_cad, 'f', 1)));
   }
   if (td->max_cad) {
-    kml_td(hwriter, QStringLiteral("Max Cadence"), QStringLiteral(" %1 rpm ").arg(QString::number(td->max_cad)));
+    kml_td(hwriter, QStringLiteral("Max Cadence"), QStringLiteral(" %1 rpm ").arg(QString::number(*td->max_cad)));
   }
-  if (td->start && td->end) {
-    gpsbabel::DateTime t = QDateTime::fromTime_t(td->start);
-    if (t.isValid()) {
-      kml_td(hwriter, QStringLiteral("Start Time"), t.toPrettyString());
-    }
-    t = QDateTime::fromTime_t(td->end);
-    if (t.isValid()) {
-      kml_td(hwriter, QStringLiteral("End Time"), t.toPrettyString());
-    }
+  if (td->start.isValid() && td->end.isValid()) {
+    kml_td(hwriter, QStringLiteral("Start Time"), td->start.toPrettyString());
+    kml_td(hwriter, QStringLiteral("End Time"), td->end.toPrettyString());
   }
 
   hwriter.writeCharacters(QStringLiteral("\n"));
@@ -819,21 +811,17 @@ void kml_output_trkdescription(const route_head* header, computed_trkdata* td)
   writer->writeEndElement(); // Close description tag
 
   /* We won't always have times. Garmin saved tracks, for example... */
-  if (td->start && td->end) {
+  if (td->start.isValid() && td->end.isValid()) {
     writer->writeStartElement(QStringLiteral("TimeSpan"));
-
-    gpsbabel::DateTime t = QDateTime::fromTime_t(td->start);
-    writer->writeTextElement(QStringLiteral("begin"), t.toPrettyString());
-    t = QDateTime::fromTime_t(td->end);
-    writer->writeTextElement(QStringLiteral("end"), t.toPrettyString());
-
+    writer->writeTextElement(QStringLiteral("begin"), td->start.toPrettyString());
+    writer->writeTextElement(QStringLiteral("end"), td->end.toPrettyString());
     writer->writeEndElement(); // Close TimeSpan tag
   }
 }
 
 
 static
-void kml_output_header(const route_head* header, computed_trkdata* td)
+void kml_output_header(const route_head* header, const computed_trkdata* td)
 {
   if (!realtime_positioning)  {
     writer->writeStartElement(QStringLiteral("Folder"));
@@ -1652,12 +1640,10 @@ static void kml_waypt_pr(const Waypoint* waypointp)
 
 static void kml_track_hdr(const route_head* header)
 {
-  computed_trkdata* td;
-  track_recompute(header, &td);
+  computed_trkdata td = track_recompute(header);
   if (header->rte_waypt_ct > 0 && (export_lines || export_points)) {
-    kml_output_header(header, td);
+    kml_output_header(header, &td);
   }
-  xfree(td);
 }
 
 static void kml_track_disp(const Waypoint* waypointp)

diff --git a/reference/earth-expertgps-track.kml b/reference/earth-expertgps-track.kml
index f7ef4b1e66c4182f0e22b98c5d8fe1405d5a06e8..207b78b3fd140bc60883e19365c9bd787bf52cf8 100644 (file)
--- a/reference/earth-expertgps-track.kml
+++ b/reference/earth-expertgps-track.kml
@@ -11,7 +11,7 @@
       <latitude>36.257086</latitude>
       <range>2979727.763965</range>
     </LookAt>
-<!-- Normal route style -->
+    <!-- Normal route style -->
     <Style id="route_n">
       <IconStyle>
         <Icon>
@@ -19,7 +19,7 @@
         </Icon>
       </IconStyle>
     </Style>
-<!-- Highlighted route style -->
+    <!-- Highlighted route style -->
     <Style id="route_h">
       <IconStyle>
         <scale>1.2</scale>
@@ -38,7 +38,7 @@
         <styleUrl>#route_h</styleUrl>
       </Pair>
     </StyleMap>
-<!-- Normal track style -->
+    <!-- Normal track style -->
     <Style id="track_n">
       <IconStyle>
         <scale>.5</scale>
@@ -50,7 +50,7 @@
         <scale>0</scale>
       </LabelStyle>
     </Style>
-<!-- Highlighted track style -->
+    <!-- Highlighted track style -->
     <Style id="track_h">
       <IconStyle>
         <scale>1.2</scale>
@@ -69,7 +69,7 @@
         <styleUrl>#track_h</styleUrl>
       </Pair>
     </StyleMap>
-<!-- Normal multiTrack style -->
+    <!-- Normal multiTrack style -->
     <Style id="multiTrack_n">
       <IconStyle>
         <Icon>
@@ -81,7 +81,7 @@
         <width>6</width>
       </LineStyle>
     </Style>
-<!-- Highlighted multiTrack style -->
+    <!-- Highlighted multiTrack style -->
     <Style id="multiTrack_h">
       <IconStyle>
         <scale>1.2</scale>
@@ -104,7 +104,7 @@
         <styleUrl>#multiTrack_h</styleUrl>
       </Pair>
     </StyleMap>
-<!-- Normal waypoint style -->
+    <!-- Normal waypoint style -->
     <Style id="waypoint_n">
       <IconStyle>
         <Icon>
@@ -112,7 +112,7 @@
         </Icon>
       </IconStyle>
     </Style>
-<!-- Highlighted waypoint style -->
+    <!-- Highlighted waypoint style -->
     <Style id="waypoint_h">
       <IconStyle>
         <scale>1.2</scale>
@@ -1172,15 +1172,16 @@
         <snippet/>
         <description>
 <![CDATA[<table>
-            <tr><td><b>Distance</b> 4.8 mi </td></tr>
-            <tr><td><b>Min Alt</b> 3.281 ft </td></tr>
-            <tr><td><b>Max Alt</b> 22.966 ft </td></tr>
-            <tr><td><b>Max Speed</b> 25.5 mph </td></tr>
-            <tr><td><b>Avg Speed</b> 2.4 mph </td></tr>
-            <tr><td><b>Start Time</b> 2002-05-25T17:06:21Z  </td></tr>
-            <tr><td><b>End Time</b> 2002-05-25T19:05:57Z  </td></tr>
-          </table>]]>
-        </description>
+<tr><td><b>Distance</b> 4.8 mi </td></tr>
+<tr><td><b>Min Alt</b> 3.281 ft </td></tr>
+<tr><td><b>Max Alt</b> 22.966 ft </td></tr>
+<tr><td><b>Min Speed</b> 0.2 mph </td></tr>
+<tr><td><b>Max Speed</b> 25.5 mph </td></tr>
+<tr><td><b>Avg Speed</b> 2.4 mph </td></tr>
+<tr><td><b>Start Time</b>2002-05-25T17:06:21Z</td></tr>
+<tr><td><b>End Time</b>2002-05-25T19:05:57Z</td></tr>
+</table>]]>
+</description>
         <TimeSpan>
           <begin>2002-05-25T17:06:21Z</begin>
           <end>2002-05-25T19:05:57Z</end>
@@ -1191,14 +1192,14 @@
             <name>-0</name>
             <snippet/>
             <description><![CDATA[
-              <table>
-                <tr><td>Longitude: -91.610350 </td></tr>
-                <tr><td>Latitude: 30.062183 </td></tr>
-                <tr><td>Altitude: 3.281 ft </td></tr>
-                <tr><td>Heading: 300.1 </td></tr>
-                <tr><td>Time: 2002-05-25T17:06:21Z </td></tr>
-              </table>
-            ]]></description>
+<table>
+<tr><td>Longitude: -91.610350 </td></tr>
+<tr><td>Latitude: 30.062183 </td></tr>
+<tr><td>Altitude: 3.281 ft </td></tr>
+<tr><td>Heading: 300.1 </td></tr>
+<tr><td>Time: 2002-05-25T17:06:21Z </td></tr>
+</table>
+]]></description>
             <LookAt>
               <longitude>-91.610350</longitude>
               <latitude>30.062183</latitude>
@@ -1216,14 +1217,14 @@
             <name>-1</name>
             <snippet/>
             <description><![CDATA[
-              <table>
-                <tr><td>Longitude: -91.610567 </td></tr>
-                <tr><td>Latitude: 30.062783 </td></tr>
-                <tr><td>Speed: 0.7 mph </td></tr>
-                <tr><td>Heading: 342.6 </td></tr>
-                <tr><td>Time: 2002-05-25T17:09:55Z </td></tr>
-              </table>
-            ]]></description>
+<table>
+<tr><td>Longitude: -91.610567 </td></tr>
+<tr><td>Latitude: 30.062783 </td></tr>
+<tr><td>Speed: 0.7 mph </td></tr>
+<tr><td>Heading: 342.6 </td></tr>
+<tr><td>Time: 2002-05-25T17:09:55Z </td></tr>
+</table>
+]]></description>
             <LookAt>
               <longitude>-91.610567</longitude>
               <latitude>30.062783</latitude>
@@ -1241,14 +1242,14 @@
             <name>-2</name>
             <snippet/>
             <description><![CDATA[
-              <table>
-                <tr><td>Longitude: -91.608267 </td></tr>
-                <tr><td>Latitude: 30.062700 </td></tr>
-                <tr><td>Speed: 4.0 mph </td></tr>
-                <tr><td>Heading: 92.4 </td></tr>
-                <tr><td>Time: 2002-05-25T17:12:00Z </td></tr>
-              </table>
-            ]]></description>
+<table>
+<tr><td>Longitude: -91.608267 </td></tr>
+<tr><td>Latitude: 30.062700 </td></tr>
+<tr><td>Speed: 4.0 mph </td></tr>
+<tr><td>Heading: 92.4 </td></tr>
+<tr><td>Time: 2002-05-25T17:12:00Z </td></tr>
+</table>
+]]></description>
             <LookAt>
               <longitude>-91.608267</longitude>
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             <snippet/>
             <description><![CDATA[
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-                <tr><td>Heading: 115.6 </td></tr>
-                <tr><td>Time: 2002-05-25T17:12:48Z </td></tr>
-              </table>
-            ]]></description>
+<table>
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               <latitude>30.062333</latitude>
@@ -1291,14 +1292,14 @@
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             <snippet/>
             <description><![CDATA[
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-                <tr><td>Heading: 113.8 </td></tr>
-                <tr><td>Time: 2002-05-25T17:14:41Z </td></tr>
-              </table>
-            ]]></description>
+<table>
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               <latitude>30.061533</latitude>
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             <snippet/>
             <description><![CDATA[
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-                <tr><td>Heading: 109.0 </td></tr>
-                <tr><td>Time: 2002-05-25T17:17:16Z </td></tr>
-              </table>
-            ]]></description>
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               <latitude>30.059783</latitude>
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             <snippet/>
             <description><![CDATA[
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-                <tr><td>Heading: 130.1 </td></tr>
-                <tr><td>Time: 2002-05-25T17:17:46Z </td></tr>
-              </table>
-            ]]></description>
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               <latitude>30.057800</latitude>
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             <snippet/>
             <description><![CDATA[
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-                <tr><td>Heading: 147.4 </td></tr>
-                <tr><td>Time: 2002-05-25T17:18:20Z </td></tr>
-              </table>
-            ]]></description>
+<table>
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               <latitude>30.055383</latitude>
@@ -1391,14 +1392,14 @@
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             <description><![CDATA[
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-                <tr><td>Heading: 127.2 </td></tr>
-                <tr><td>Time: 2002-05-25T17:19:01Z </td></tr>
-              </table>
-            ]]></description>
+<table>
+<tr><td>Longitude: -91.592617 </td></tr>
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               <latitude>30.053883</latitude>
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             <description><![CDATA[
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-                <tr><td>Heading: 149.1 </td></tr>
-                <tr><td>Time: 2002-05-25T17:20:46Z </td></tr>
-              </table>
-            ]]></description>
+<table>
+<tr><td>Longitude: -91.589750 </td></tr>
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               <latitude>30.049733</latitude>
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             <snippet/>
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-                <tr><td>Heading: 189.1 </td></tr>
-                <tr><td>Time: 2002-05-25T17:21:10Z </td></tr>
-              </table>
-            ]]></description>
+<table>
+<tr><td>Longitude: -91.589883 </td></tr>
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               <latitude>30.049017</latitude>
@@ -1466,14 +1467,14 @@
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             <snippet/>
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-                <tr><td>Heading: 265.3 </td></tr>
-                <tr><td>Time: 2002-05-25T17:21:51Z </td></tr>
-              </table>
-            ]]></description>
+<table>
+<tr><td>Longitude: -91.592933 </td></tr>
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               <latitude>30.048800</latitude>
@@ -1491,14 +1492,14 @@
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             <snippet/>
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-                <tr><td>Heading: 229.9 </td></tr>
-                <tr><td>Time: 2002-05-25T17:22:35Z </td></tr>
-              </table>
-            ]]></description>
+<table>
+<tr><td>Longitude: -91.596450 </td></tr>
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               <latitude>30.046233</latitude>
@@ -1516,14 +1517,14 @@
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-                <tr><td>Heading: 250.0 </td></tr>
-                <tr><td>Time: 2002-05-25T17:23:08Z </td></tr>
-              </table>
-            ]]></description>
+<table>
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               <latitude>30.045517</latitude>
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             <snippet/>
             <description><![CDATA[
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-                <tr><td>Heading: 323.0 </td></tr>
-                <tr><td>Time: 2002-05-25T18:04:23Z </td></tr>
-              </table>
-            ]]></description>
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               <latitude>30.047300</latitude>
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             <snippet/>
             <description><![CDATA[
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-                <tr><td>Heading: 118.7 </td></tr>
-                <tr><td>Time: 2002-05-25T18:06:04Z </td></tr>
-              </table>
-            ]]></description>
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               <latitude>30.047000</latitude>
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             <snippet/>
             <description><![CDATA[
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-                <tr><td>Heading: 165.8 </td></tr>
-                <tr><td>Time: 2002-05-25T18:07:06Z </td></tr>
-              </table>
-            ]]></description>
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-                <tr><td>Heading: 117.5 </td></tr>
-                <tr><td>Time: 2002-05-25T18:08:18Z </td></tr>
-              </table>
-            ]]></description>
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               <latitude>30.046200</latitude>
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-                <tr><td>Heading: 81.0 </td></tr>
-                <tr><td>Time: 2002-05-25T18:10:20Z </td></tr>
-              </table>
-            ]]></description>
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               <latitude>30.046367</latitude>
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-                <tr><td>Heading: 92.0 </td></tr>
-                <tr><td>Time: 2002-05-25T18:11:09Z </td></tr>
-              </table>
-            ]]></description>
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             <snippet/>
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-                <tr><td>Heading: 59.0 </td></tr>
-                <tr><td>Time: 2002-05-25T18:12:18Z </td></tr>
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-            ]]></description>
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-                <tr><td>Heading: 55.8 </td></tr>
-                <tr><td>Time: 2002-05-25T18:14:22Z </td></tr>
-              </table>
-            ]]></description>
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-                <tr><td>Time: 2002-05-25T18:15:04Z </td></tr>
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-            ]]></description>
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-                <tr><td>Heading: 52.8 </td></tr>
-                <tr><td>Time: 2002-05-25T18:16:14Z </td></tr>
-              </table>
-            ]]></description>
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-                <tr><td>Time: 2002-05-25T18:17:01Z </td></tr>
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-            ]]></description>
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-            ]]></description>
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+]]></description>
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-                <tr><td>Heading: 353.2 </td></tr>
-                <tr><td>Time: 2002-05-25T18:19:51Z </td></tr>
-              </table>
-            ]]></description>
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+<tr><td>Longitude: -91.593983 </td></tr>
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+<tr><td>Speed: 2.3 mph </td></tr>
+<tr><td>Heading: 353.2 </td></tr>
+<tr><td>Time: 2002-05-25T18:19:51Z </td></tr>
+</table>
+]]></description>
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               <latitude>30.050317</latitude>
@@ -1872,14 +1873,14 @@
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             <snippet/>
             <description><![CDATA[
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-                <tr><td>Heading: 346.0 </td></tr>
-                <tr><td>Time: 2002-05-25T18:20:39Z </td></tr>
-              </table>
-            ]]></description>
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               <latitude>30.050783</latitude>
@@ -1897,14 +1898,14 @@
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             <snippet/>
             <description><![CDATA[
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-                <tr><td>Heading: 334.3 </td></tr>
-                <tr><td>Time: 2002-05-25T18:21:24Z </td></tr>
-              </table>
-            ]]></description>
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+<tr><td>Longitude: -91.594367 </td></tr>
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+<tr><td>Heading: 334.3 </td></tr>
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               <latitude>30.051233</latitude>
@@ -1922,14 +1923,14 @@
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             <snippet/>
             <description><![CDATA[
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-                <tr><td>Heading: 0.0 </td></tr>
-                <tr><td>Time: 2002-05-25T18:22:17Z </td></tr>
-              </table>
-            ]]></description>
+<table>
+<tr><td>Longitude: -91.594367 </td></tr>
+<tr><td>Latitude: 30.051800 </td></tr>
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               <longitude>-91.594367</longitude>
               <latitude>30.051800</latitude>
@@ -1947,14 +1948,14 @@
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             <snippet/>
             <description><![CDATA[
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-                <tr><td>Heading: 328.1 </td></tr>
-                <tr><td>Time: 2002-05-25T18:23:18Z </td></tr>
-              </table>
-            ]]></description>
+<table>
+<tr><td>Longitude: -91.594667 </td></tr>
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               <latitude>30.052217</latitude>
@@ -1972,14 +1973,14 @@
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             <snippet/>
             <description><![CDATA[
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-                <tr><td>Heading: 359.0 </td></tr>
-                <tr><td>Time: 2002-05-25T18:24:37Z </td></tr>
-              </table>
-            ]]></description>
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+<tr><td>Longitude: -91.594683 </td></tr>
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               <latitude>30.053017</latitude>
@@ -1997,15 +1998,15 @@
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             <snippet/>
             <description><![CDATA[
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-                <tr><td>Heading: 346.4 </td></tr>
-                <tr><td>Time: 2002-05-25T18:28:13Z </td></tr>
-              </table>
-            ]]></description>
+<table>
+<tr><td>Longitude: -91.595200 </td></tr>
+<tr><td>Latitude: 30.054867 </td></tr>
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+<tr><td>Heading: 346.4 </td></tr>
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               <latitude>30.054867</latitude>
@@ -2023,15 +2024,15 @@
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             <snippet/>
             <description><![CDATA[
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-                <tr><td>Heading: 168.5 </td></tr>
-                <tr><td>Time: 2002-05-25T18:31:36Z </td></tr>
-              </table>
-            ]]></description>
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               <latitude>30.053733</latitude>
@@ -2049,14 +2050,14 @@
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             <snippet/>
             <description><![CDATA[
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-                <tr><td>Heading: 166.7 </td></tr>
-                <tr><td>Time: 2002-05-25T18:32:56Z </td></tr>
-              </table>
-            ]]></description>
+<table>
+<tr><td>Longitude: -91.594783 </td></tr>
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+<tr><td>Time: 2002-05-25T18:32:56Z </td></tr>
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               <longitude>-91.594783</longitude>
               <latitude>30.053183</latitude>
@@ -2074,14 +2075,14 @@
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             <snippet/>
             <description><![CDATA[
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-                <tr><td>Heading: 184.5 </td></tr>
-                <tr><td>Time: 2002-05-25T18:34:02Z </td></tr>
-              </table>
-            ]]></description>
+<table>
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               <latitude>30.052633</latitude>
@@ -2099,14 +2100,14 @@
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-                <tr><td>Heading: 250.6 </td></tr>
-                <tr><td>Time: 2002-05-25T18:36:03Z </td></tr>
-              </table>
-            ]]></description>
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               <latitude>30.052450</latitude>
@@ -2124,14 +2125,14 @@
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-                <tr><td>Heading: 274.1 </td></tr>
-                <tr><td>Time: 2002-05-25T18:36:48Z </td></tr>
-              </table>
-            ]]></description>
+<table>
+<tr><td>Longitude: -91.595967 </td></tr>
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               <latitude>30.052483</latitude>
@@ -2149,15 +2150,15 @@
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             <snippet/>
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-                <tr><td>Heading: 283.3 </td></tr>
-                <tr><td>Time: 2002-05-25T18:37:52Z </td></tr>
-              </table>
-            ]]></description>
+<table>
+<tr><td>Longitude: -91.596783 </td></tr>
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+<tr><td>Heading: 283.3 </td></tr>
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               <longitude>-91.596783</longitude>
               <latitude>30.052650</latitude>
@@ -2175,14 +2176,14 @@
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             <snippet/>
             <description><![CDATA[
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-                <tr><td>Heading: 297.6 </td></tr>
-                <tr><td>Time: 2002-05-25T18:39:18Z </td></tr>
-              </table>
-            ]]></description>
+<table>
+<tr><td>Longitude: -91.597850 </td></tr>
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               <latitude>30.053133</latitude>
@@ -2200,14 +2201,14 @@
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             <description><![CDATA[
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-                <tr><td>Heading: 348.2 </td></tr>
-                <tr><td>Time: 2002-05-25T18:40:15Z </td></tr>
-              </table>
-            ]]></description>
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+<tr><td>Longitude: -91.597967 </td></tr>
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@@ -2225,15 +2226,15 @@
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             <snippet/>
             <description><![CDATA[
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-                <tr><td>Heading: 26.3 </td></tr>
-                <tr><td>Time: 2002-05-25T18:41:25Z </td></tr>
-              </table>
-            ]]></description>
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               <latitude>30.053967</latitude>
@@ -2251,14 +2252,14 @@
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             <snippet/>
             <description><![CDATA[
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-                <tr><td>Heading: 218.0 </td></tr>
-                <tr><td>Time: 2002-05-25T18:42:37Z </td></tr>
-              </table>
-            ]]></description>
+<table>
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@@ -2276,14 +2277,14 @@
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             <snippet/>
             <description><![CDATA[
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-                <tr><td>Heading: 161.0 </td></tr>
-                <tr><td>Time: 2002-05-25T18:44:01Z </td></tr>
-              </table>
-            ]]></description>
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@@ -2301,14 +2302,14 @@
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             <snippet/>
             <description><![CDATA[
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-                <tr><td>Heading: 137.9 </td></tr>
-                <tr><td>Time: 2002-05-25T18:45:53Z </td></tr>
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-            ]]></description>
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@@ -2326,14 +2327,14 @@
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-                <tr><td>Time: 2002-05-25T18:46:54Z </td></tr>
-              </table>
-            ]]></description>
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@@ -2351,14 +2352,14 @@
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-                <tr><td>Time: 2002-05-25T18:47:42Z </td></tr>
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-            ]]></description>
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@@ -2376,14 +2377,14 @@
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             <snippet/>
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-                <tr><td>Time: 2002-05-25T18:48:41Z </td></tr>
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-            ]]></description>
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-            ]]></description>
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             <snippet/>
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-                <tr><td>Time: 2002-05-25T18:50:49Z </td></tr>
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-            ]]></description>
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-                <tr><td>Time: 2001-06-02T03:26:55Z </td></tr>
-              </table>
-            ]]></description>
+<table>
+<tr><td>Longitude: -71.114456 </td></tr>
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+<tr><td>Altitude: 185.000 ft </td></tr>
+<tr><td>Time: 2001-06-02T03:26:55Z </td></tr>
+</table>
+]]></description>
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               <latitude>42.439018</latitude>
@@ -3004,13 +3005,13 @@
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             <snippet/>
             <description><![CDATA[
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-                <tr><td>Altitude: 151.012 ft </td></tr>
-                <tr><td>Time: 2001-11-28T21:05:28Z </td></tr>
-              </table>
-            ]]></description>
+<table>
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+<tr><td>Latitude: 42.438594 </td></tr>
+<tr><td>Altitude: 151.012 ft </td></tr>
+<tr><td>Time: 2001-11-28T21:05:28Z </td></tr>
+</table>
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               <latitude>42.438594</latitude>
@@ -3028,13 +3029,13 @@
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             <snippet/>
             <description><![CDATA[
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-                <tr><td>Time: 2001-11-16T23:03:38Z </td></tr>
-              </table>
-            ]]></description>
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+<tr><td>Altitude: 147.070 ft </td></tr>
+<tr><td>Time: 2001-11-16T23:03:38Z </td></tr>
+</table>
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               <longitude>-71.116146</longitude>
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@@ -3052,13 +3053,13 @@
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             <snippet/>
             <description><![CDATA[
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-                <tr><td>Time: 2001-11-28T21:05:28Z </td></tr>
-              </table>
-            ]]></description>
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+<tr><td>Longitude: -71.119277 </td></tr>
+<tr><td>Latitude: 42.438878 </td></tr>
+<tr><td>Altitude: 146.281 ft </td></tr>
+<tr><td>Time: 2001-11-28T21:05:28Z </td></tr>
+</table>
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               <latitude>42.438878</latitude>
@@ -3076,13 +3077,13 @@
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             <snippet/>
             <description><![CDATA[
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-                <tr><td>Time: 2001-06-02T03:26:55Z </td></tr>
-              </table>
-            ]]></description>
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+<tr><td>Longitude: -71.119689 </td></tr>
+<tr><td>Latitude: 42.439227 </td></tr>
+<tr><td>Altitude: 189.000 ft </td></tr>
+<tr><td>Time: 2001-06-02T03:26:55Z </td></tr>
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               <latitude>42.439227</latitude>
@@ -3100,13 +3101,13 @@
             <name>5058ROAD</name>
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             <description><![CDATA[
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-                <tr><td>Time: 2001-06-02T00:18:14Z </td></tr>
-              </table>
-            ]]></description>
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@@ -3124,13 +3125,13 @@
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             <description><![CDATA[
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-                <tr><td>Time: 2001-06-02T00:18:16Z </td></tr>
-              </table>
-            ]]></description>
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               <latitude>42.441727</latitude>
@@ -3148,13 +3149,13 @@
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             <description><![CDATA[
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-                <tr><td>Time: 2001-11-28T21:05:28Z </td></tr>
-              </table>
-            ]]></description>
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+<tr><td>Time: 2001-11-28T21:05:28Z </td></tr>
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             <description><![CDATA[
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-                <tr><td>Time: 2001-11-28T21:05:28Z </td></tr>
-              </table>
-            ]]></description>
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               <latitude>42.445359</latitude>
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             <description><![CDATA[
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-                <tr><td>Time: 2001-06-02T03:26:58Z </td></tr>
-              </table>
-            ]]></description>
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+<tr><td>Time: 2001-06-02T03:26:58Z </td></tr>
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               <latitude>42.447298</latitude>
@@ -3220,13 +3221,13 @@
             <name>5148NANEPA</name>
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             <description><![CDATA[
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-                <tr><td>Time: 2001-11-07T23:53:41Z </td></tr>
-              </table>
-            ]]></description>
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+]]></description>
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             <description><![CDATA[
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-                <tr><td>Time: 2001-11-07T23:53:41Z </td></tr>
-              </table>
-            ]]></description>
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+]]></description>
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@@ -3268,13 +3269,13 @@
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             <description><![CDATA[
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-                <tr><td>Time: 2001-11-07T23:53:41Z </td></tr>
-              </table>
-            ]]></description>
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+<tr><td>Time: 2001-11-07T23:53:41Z </td></tr>
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+]]></description>
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               <longitude>-71.121211</longitude>
               <latitude>42.453256</latitude>
@@ -3292,13 +3293,13 @@
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             <description><![CDATA[
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-                <tr><td>Time: 2001-11-07T23:53:41Z </td></tr>
-              </table>
-            ]]></description>
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@@ -3316,13 +3317,13 @@
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             <description><![CDATA[
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-                <tr><td>Time: 2001-11-07T23:53:41Z </td></tr>
-              </table>
-            ]]></description>
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@@ -3340,13 +3341,13 @@
             <name>5267OBSTAC</name>
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             <description><![CDATA[
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-                <tr><td>Time: 2001-06-02T03:27:00Z </td></tr>
-              </table>
-            ]]></description>
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@@ -3364,13 +3365,13 @@
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             <snippet/>
             <description><![CDATA[
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-                <tr><td>Time: 2001-06-02T03:27:00Z </td></tr>
-              </table>
-            ]]></description>
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             <description><![CDATA[
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-                <tr><td>Time: 2001-06-02T03:27:01Z </td></tr>
-              </table>
-            ]]></description>
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@@ -3412,13 +3413,13 @@
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             <description><![CDATA[
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-                <tr><td>Time: 2001-11-28T21:05:28Z </td></tr>
-              </table>
-            ]]></description>
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             <description><![CDATA[
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-                <tr><td>Time: 2001-06-02T03:27:02Z </td></tr>
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@@ -3460,13 +3461,13 @@
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             <description><![CDATA[
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-                <tr><td>Time: 2001-11-07T23:53:41Z </td></tr>
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-                <tr><td>Time: 2001-06-02T03:27:02Z </td></tr>
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-                <tr><td>Time: 2001-06-02T03:27:02Z </td></tr>
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-                <tr><td>Time: 2001-06-02T03:27:02Z </td></tr>
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-                <tr><td>Time: 2001-06-02T03:27:03Z </td></tr>
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-                <tr><td>Time: 2001-06-02T03:27:03Z </td></tr>
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-                <tr><td>Time: 2001-11-16T23:03:38Z </td></tr>
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-                <tr><td>Time: 2001-06-02T03:26:58Z </td></tr>
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-                <tr><td>Time: 2001-06-02T03:26:55Z </td></tr>
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-                <tr><td>Time: 2001-06-02T03:26:55Z </td></tr>
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-                <tr><td>Time: 2001-11-28T21:05:28Z </td></tr>
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-                <tr><td>Time: 2001-11-07T23:53:41Z </td></tr>
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             <description><![CDATA[
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-                <tr><td>Time: 2001-06-02T00:18:15Z </td></tr>
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+<table>
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diff --git a/reference/earth-expertgps.kml b/reference/earth-expertgps.kml
index 403eb2878a59a0959ca3f127e50f69f26cfc10c0..fd0b5347af70845727b516f0a95c222d6111097b 100644 (file)
--- a/reference/earth-expertgps.kml
+++ b/reference/earth-expertgps.kml
@@ -11,7 +11,7 @@
       <latitude>36.257086</latitude>
       <range>2979727.763965</range>
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         </Icon>
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         <styleUrl>#route_h</styleUrl>
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       </LabelStyle>
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-            <tr><td><b>End Time</b> 2002-05-25T19:05:57Z  </td></tr>
-          </table>]]>
-        </description>
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+<tr><td><b>Min Speed</b> 0.2 mph </td></tr>
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-                <tr><td>Heading: 300.1 </td></tr>
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-                <tr><td>Heading: 92.4 </td></tr>
-                <tr><td>Time: 2002-05-25T17:12:00Z </td></tr>
-              </table>
-            ]]></description>
+<table>
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+<tr><td>Time: 2002-05-25T17:12:00Z </td></tr>
+</table>
+]]></description>
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               <latitude>30.062700</latitude>
@@ -1098,14 +1099,14 @@
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             <snippet/>
             <description><![CDATA[
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-                <tr><td>Heading: 115.6 </td></tr>
-                <tr><td>Time: 2002-05-25T17:12:48Z </td></tr>
-              </table>
-            ]]></description>
+<table>
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               <latitude>30.062333</latitude>
@@ -1123,14 +1124,14 @@
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             <snippet/>
             <description><![CDATA[
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-                <tr><td>Heading: 113.8 </td></tr>
-                <tr><td>Time: 2002-05-25T17:14:41Z </td></tr>
-              </table>
-            ]]></description>
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+<tr><td>Heading: 113.8 </td></tr>
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               <latitude>30.061533</latitude>
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-                <tr><td>Heading: 109.0 </td></tr>
-                <tr><td>Time: 2002-05-25T17:17:16Z </td></tr>
-              </table>
-            ]]></description>
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+<tr><td>Longitude: -91.599400 </td></tr>
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               <latitude>30.059783</latitude>
@@ -1173,14 +1174,14 @@
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             <description><![CDATA[
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-                <tr><td>Heading: 130.1 </td></tr>
-                <tr><td>Time: 2002-05-25T17:17:46Z </td></tr>
-              </table>
-            ]]></description>
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               <latitude>30.057800</latitude>
@@ -1198,14 +1199,14 @@
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             <description><![CDATA[
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-                <tr><td>Heading: 147.4 </td></tr>
-                <tr><td>Time: 2002-05-25T17:18:20Z </td></tr>
-              </table>
-            ]]></description>
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+<tr><td>Time: 2002-05-25T17:18:20Z </td></tr>
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               <latitude>30.055383</latitude>
@@ -1223,14 +1224,14 @@
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-                <tr><td>Heading: 127.2 </td></tr>
-                <tr><td>Time: 2002-05-25T17:19:01Z </td></tr>
-              </table>
-            ]]></description>
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               <latitude>30.053883</latitude>
@@ -1248,14 +1249,14 @@
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             <snippet/>
             <description><![CDATA[
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-                <tr><td>Heading: 149.1 </td></tr>
-                <tr><td>Time: 2002-05-25T17:20:46Z </td></tr>
-              </table>
-            ]]></description>
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+<tr><td>Longitude: -91.589750 </td></tr>
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               <latitude>30.049733</latitude>
@@ -1273,14 +1274,14 @@
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             <snippet/>
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-                <tr><td>Heading: 189.1 </td></tr>
-                <tr><td>Time: 2002-05-25T17:21:10Z </td></tr>
-              </table>
-            ]]></description>
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+<tr><td>Longitude: -91.589883 </td></tr>
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               <latitude>30.049017</latitude>
@@ -1298,14 +1299,14 @@
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             <snippet/>
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-                <tr><td>Heading: 265.3 </td></tr>
-                <tr><td>Time: 2002-05-25T17:21:51Z </td></tr>
-              </table>
-            ]]></description>
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+<tr><td>Longitude: -91.592933 </td></tr>
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               <latitude>30.048800</latitude>
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-                <tr><td>Heading: 229.9 </td></tr>
-                <tr><td>Time: 2002-05-25T17:22:35Z </td></tr>
-              </table>
-            ]]></description>
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+<tr><td>Longitude: -91.596450 </td></tr>
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               <latitude>30.046233</latitude>
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-                <tr><td>Heading: 250.0 </td></tr>
-                <tr><td>Time: 2002-05-25T17:23:08Z </td></tr>
-              </table>
-            ]]></description>
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               <latitude>30.045517</latitude>
@@ -1373,14 +1374,14 @@
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             <snippet/>
             <description><![CDATA[
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-                <tr><td>Heading: 323.0 </td></tr>
-                <tr><td>Time: 2002-05-25T18:04:23Z </td></tr>
-              </table>
-            ]]></description>
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               <latitude>30.047300</latitude>
@@ -1398,15 +1399,15 @@
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-                <tr><td>Heading: 118.7 </td></tr>
-                <tr><td>Time: 2002-05-25T18:06:04Z </td></tr>
-              </table>
-            ]]></description>
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               <latitude>30.047000</latitude>
@@ -1424,14 +1425,14 @@
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             <snippet/>
             <description><![CDATA[
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-                <tr><td>Heading: 165.8 </td></tr>
-                <tr><td>Time: 2002-05-25T18:07:06Z </td></tr>
-              </table>
-            ]]></description>
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@@ -1449,15 +1450,15 @@
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             <snippet/>
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-                <tr><td>Heading: 117.5 </td></tr>
-                <tr><td>Time: 2002-05-25T18:08:18Z </td></tr>
-              </table>
-            ]]></description>
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               <latitude>30.046200</latitude>
@@ -1475,14 +1476,14 @@
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-                <tr><td>Heading: 81.0 </td></tr>
-                <tr><td>Time: 2002-05-25T18:10:20Z </td></tr>
-              </table>
-            ]]></description>
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               <latitude>30.046367</latitude>
@@ -1500,14 +1501,14 @@
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-                <tr><td>Heading: 92.0 </td></tr>
-                <tr><td>Time: 2002-05-25T18:11:09Z </td></tr>
-              </table>
-            ]]></description>
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@@ -1525,14 +1526,14 @@
             <name>-20</name>
             <snippet/>
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-                <tr><td>Heading: 59.0 </td></tr>
-                <tr><td>Time: 2002-05-25T18:12:18Z </td></tr>
-              </table>
-            ]]></description>
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@@ -1550,14 +1551,14 @@
             <name>-21</name>
             <snippet/>
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-                <tr><td>Heading: 55.8 </td></tr>
-                <tr><td>Time: 2002-05-25T18:14:22Z </td></tr>
-              </table>
-            ]]></description>
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-                <tr><td>Time: 2002-05-25T18:15:04Z </td></tr>
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-            ]]></description>
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             <snippet/>
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-                <tr><td>Heading: 52.8 </td></tr>
-                <tr><td>Time: 2002-05-25T18:16:14Z </td></tr>
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-            ]]></description>
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-                <tr><td>Time: 2002-05-25T18:17:01Z </td></tr>
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-            ]]></description>
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+]]></description>
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-            ]]></description>
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               <latitude>30.049350</latitude>
@@ -1678,15 +1679,15 @@
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             <snippet/>
             <description><![CDATA[
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-                <tr><td>Heading: 353.2 </td></tr>
-                <tr><td>Time: 2002-05-25T18:19:51Z </td></tr>
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-            ]]></description>
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+<tr><td>Heading: 353.2 </td></tr>
+<tr><td>Time: 2002-05-25T18:19:51Z </td></tr>
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               <latitude>30.050317</latitude>
@@ -1704,14 +1705,14 @@
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             <snippet/>
             <description><![CDATA[
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-                <tr><td>Time: 2002-05-25T18:20:39Z </td></tr>
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-            ]]></description>
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               <latitude>30.050783</latitude>
@@ -1729,14 +1730,14 @@
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-                <tr><td>Heading: 334.3 </td></tr>
-                <tr><td>Time: 2002-05-25T18:21:24Z </td></tr>
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-            ]]></description>
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               <latitude>30.051233</latitude>
@@ -1754,14 +1755,14 @@
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             <snippet/>
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-                <tr><td>Heading: 0.0 </td></tr>
-                <tr><td>Time: 2002-05-25T18:22:17Z </td></tr>
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-            ]]></description>
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               <latitude>30.051800</latitude>
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-                <tr><td>Time: 2002-05-25T18:23:18Z </td></tr>
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-            ]]></description>
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-                <tr><td>Time: 2002-05-25T18:24:37Z </td></tr>
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-            ]]></description>
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               <latitude>30.053017</latitude>
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-                <tr><td>Heading: 346.4 </td></tr>
-                <tr><td>Time: 2002-05-25T18:28:13Z </td></tr>
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-            ]]></description>
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-                <tr><td>Time: 2002-05-25T18:31:36Z </td></tr>
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-            ]]></description>
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-                <tr><td>Heading: 166.7 </td></tr>
-                <tr><td>Time: 2002-05-25T18:32:56Z </td></tr>
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-            ]]></description>
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               <latitude>30.053183</latitude>
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-                <tr><td>Heading: 184.5 </td></tr>
-                <tr><td>Time: 2002-05-25T18:34:02Z </td></tr>
-              </table>
-            ]]></description>
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-                <tr><td>Heading: 250.6 </td></tr>
-                <tr><td>Time: 2002-05-25T18:36:03Z </td></tr>
-              </table>
-            ]]></description>
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-                <tr><td>Heading: 274.1 </td></tr>
-                <tr><td>Time: 2002-05-25T18:36:48Z </td></tr>
-              </table>
-            ]]></description>
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               <latitude>30.052483</latitude>
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             <snippet/>
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-                <tr><td>Heading: 283.3 </td></tr>
-                <tr><td>Time: 2002-05-25T18:37:52Z </td></tr>
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-            ]]></description>
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               <latitude>30.052650</latitude>
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-                <tr><td>Time: 2002-05-25T18:39:18Z </td></tr>
-              </table>
-            ]]></description>
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-                <tr><td>Time: 2002-05-25T18:40:15Z </td></tr>
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-            ]]></description>
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-                <tr><td>Time: 2002-05-25T18:41:25Z </td></tr>
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-            ]]></description>
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-                <tr><td>Time: 2002-05-25T18:42:37Z </td></tr>
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-            ]]></description>
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-                <tr><td>Time: 2002-05-25T18:44:01Z </td></tr>
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-            ]]></description>
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-            ]]></description>
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-            ]]></description>
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+<table>
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+<tr><td>Altitude: 123.415 ft </td></tr>
+<tr><td>Time: 2001-11-28T21:05:28Z </td></tr>
+</table>
+]]></description>
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               <latitude>42.436757</latitude>
@@ -2812,13 +2813,13 @@
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             <snippet/>
             <description><![CDATA[
-              <table>
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-                <tr><td>Latitude: 42.439018 </td></tr>
-                <tr><td>Altitude: 185.000 ft </td></tr>
-                <tr><td>Time: 2001-06-02T03:26:55Z </td></tr>
-              </table>
-            ]]></description>
+<table>
+<tr><td>Longitude: -71.114456 </td></tr>
+<tr><td>Latitude: 42.439018 </td></tr>
+<tr><td>Altitude: 185.000 ft </td></tr>
+<tr><td>Time: 2001-06-02T03:26:55Z </td></tr>
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               <longitude>-71.114456</longitude>
               <latitude>42.439018</latitude>
@@ -2836,13 +2837,13 @@
             <name>6006BLUE</name>
             <snippet/>
             <description><![CDATA[
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-                <tr><td>Time: 2001-11-28T21:05:28Z </td></tr>
-              </table>
-            ]]></description>
+<table>
+<tr><td>Longitude: -71.114803 </td></tr>
+<tr><td>Latitude: 42.438594 </td></tr>
+<tr><td>Altitude: 151.012 ft </td></tr>
+<tr><td>Time: 2001-11-28T21:05:28Z </td></tr>
+</table>
+]]></description>
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               <latitude>42.438594</latitude>
@@ -2860,13 +2861,13 @@
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             <snippet/>
             <description><![CDATA[
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-                <tr><td>Time: 2001-11-16T23:03:38Z </td></tr>
-              </table>
-            ]]></description>
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+<tr><td>Altitude: 147.070 ft </td></tr>
+<tr><td>Time: 2001-11-16T23:03:38Z </td></tr>
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               <longitude>-71.116146</longitude>
               <latitude>42.438917</latitude>
@@ -2884,13 +2885,13 @@
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             <snippet/>
             <description><![CDATA[
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-                <tr><td>Time: 2001-11-28T21:05:28Z </td></tr>
-              </table>
-            ]]></description>
+<table>
+<tr><td>Longitude: -71.119277 </td></tr>
+<tr><td>Latitude: 42.438878 </td></tr>
+<tr><td>Altitude: 146.281 ft </td></tr>
+<tr><td>Time: 2001-11-28T21:05:28Z </td></tr>
+</table>
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               <longitude>-71.119277</longitude>
               <latitude>42.438878</latitude>
@@ -2908,13 +2909,13 @@
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             <snippet/>
             <description><![CDATA[
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-                <tr><td>Altitude: 189.000 ft </td></tr>
-                <tr><td>Time: 2001-06-02T03:26:55Z </td></tr>
-              </table>
-            ]]></description>
+<table>
+<tr><td>Longitude: -71.119689 </td></tr>
+<tr><td>Latitude: 42.439227 </td></tr>
+<tr><td>Altitude: 189.000 ft </td></tr>
+<tr><td>Time: 2001-06-02T03:26:55Z </td></tr>
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               <latitude>42.439227</latitude>
@@ -2932,13 +2933,13 @@
             <name>5058ROAD</name>
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             <description><![CDATA[
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-                <tr><td>Time: 2001-06-02T00:18:14Z </td></tr>
-              </table>
-            ]]></description>
+<table>
+<tr><td>Longitude: -71.120925 </td></tr>
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+<tr><td>Altitude: 177.000 ft </td></tr>
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               <latitude>42.439993</latitude>
@@ -2956,13 +2957,13 @@
             <name>5150TANK</name>
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             <description><![CDATA[
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-                <tr><td>Time: 2001-06-02T00:18:16Z </td></tr>
-              </table>
-            ]]></description>
+<table>
+<tr><td>Longitude: -71.121676 </td></tr>
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+]]></description>
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               <latitude>42.441727</latitude>
@@ -2980,13 +2981,13 @@
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             <snippet/>
             <description><![CDATA[
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-                <tr><td>Time: 2001-11-28T21:05:28Z </td></tr>
-              </table>
-            ]]></description>
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+<tr><td>Time: 2001-11-28T21:05:28Z </td></tr>
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+]]></description>
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               <latitude>42.443904</latitude>
@@ -3004,13 +3005,13 @@
             <name>5144SUMMIT</name>
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             <description><![CDATA[
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-                <tr><td>Time: 2001-11-28T21:05:28Z </td></tr>
-              </table>
-            ]]></description>
+<table>
+<tr><td>Longitude: -71.122845 </td></tr>
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+<tr><td>Time: 2001-11-28T21:05:28Z </td></tr>
+</table>
+]]></description>
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               <longitude>-71.122845</longitude>
               <latitude>42.445359</latitude>
@@ -3028,13 +3029,13 @@
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             <snippet/>
             <description><![CDATA[
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-                <tr><td>Time: 2001-06-02T03:26:58Z </td></tr>
-              </table>
-            ]]></description>
+<table>
+<tr><td>Longitude: -71.121447 </td></tr>
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+<tr><td>Time: 2001-06-02T03:26:58Z </td></tr>
+</table>
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               <latitude>42.447298</latitude>
@@ -3052,13 +3053,13 @@
             <name>5148NANEPA</name>
             <snippet/>
             <description><![CDATA[
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-                <tr><td>Time: 2001-11-07T23:53:41Z </td></tr>
-              </table>
-            ]]></description>
+<table>
+<tr><td>Longitude: -71.122320 </td></tr>
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+]]></description>
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               <latitude>42.449765</latitude>
@@ -3076,13 +3077,13 @@
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             <snippet/>
             <description><![CDATA[
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-                <tr><td>Time: 2001-11-07T23:53:41Z </td></tr>
-              </table>
-            ]]></description>
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+<tr><td>Longitude: -71.121746 </td></tr>
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+]]></description>
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               <latitude>42.451442</latitude>
@@ -3100,13 +3101,13 @@
             <name>5252PURPLE</name>
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             <description><![CDATA[
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-                <tr><td>Time: 2001-11-07T23:53:41Z </td></tr>
-              </table>
-            ]]></description>
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+<tr><td>Longitude: -71.121211 </td></tr>
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               <latitude>42.453256</latitude>
@@ -3124,13 +3125,13 @@
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             <snippet/>
             <description><![CDATA[
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-                <tr><td>Altitude: 258.245 ft </td></tr>
-                <tr><td>Time: 2001-11-07T23:53:41Z </td></tr>
-              </table>
-            ]]></description>
+<table>
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+<tr><td>Time: 2001-11-07T23:53:41Z </td></tr>
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+]]></description>
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               <longitude>-71.119356</longitude>
               <latitude>42.456252</latitude>
@@ -3148,13 +3149,13 @@
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             <snippet/>
             <description><![CDATA[
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-                <tr><td>Time: 2001-11-07T23:53:41Z </td></tr>
-              </table>
-            ]]></description>
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@@ -3172,13 +3173,13 @@
             <name>5267OBSTAC</name>
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             <description><![CDATA[
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-                <tr><td>Time: 2001-06-02T03:27:00Z </td></tr>
-              </table>
-            ]]></description>
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               <latitude>42.457388</latitude>
@@ -3196,13 +3197,13 @@
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             <snippet/>
             <description><![CDATA[
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-                <tr><td>Time: 2001-06-02T03:27:00Z </td></tr>
-              </table>
-            ]]></description>
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               <longitude>-71.119135</longitude>
               <latitude>42.458148</latitude>
@@ -3220,13 +3221,13 @@
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             <description><![CDATA[
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-                <tr><td>Time: 2001-06-02T03:27:01Z </td></tr>
-              </table>
-            ]]></description>
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@@ -3244,13 +3245,13 @@
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             <description><![CDATA[
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-                <tr><td>Time: 2001-11-28T21:05:28Z </td></tr>
-              </table>
-            ]]></description>
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             <description><![CDATA[
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-                <tr><td>Time: 2001-06-02T03:27:02Z </td></tr>
-              </table>
-            ]]></description>
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@@ -3292,13 +3293,13 @@
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             <description><![CDATA[
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-                <tr><td>Time: 2001-11-07T23:53:41Z </td></tr>
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-            ]]></description>
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-                <tr><td>Time: 2001-06-02T03:27:02Z </td></tr>
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@@ -3340,13 +3341,13 @@
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-                <tr><td>Time: 2001-06-02T03:27:02Z </td></tr>
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@@ -3364,13 +3365,13 @@
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-                <tr><td>Time: 2001-06-02T03:27:02Z </td></tr>
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@@ -3388,13 +3389,13 @@
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-                <tr><td>Time: 2001-06-02T03:27:03Z </td></tr>
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-                <tr><td>Time: 2001-06-02T03:27:03Z </td></tr>
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-                <tr><td>Time: 2001-11-16T23:03:38Z </td></tr>
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-            ]]></description>
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+<tr><td>Longitude: -71.106170 </td></tr>
+<tr><td>Latitude: 42.459986 </td></tr>
+<tr><td>Altitude: 239.321 ft </td></tr>
+<tr><td>Time: 2001-11-16T23:03:38Z </td></tr>
+</table>
+]]></description>
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               <longitude>-71.106170</longitude>
               <latitude>42.459986</latitude>
@@ -3460,13 +3461,13 @@
             <name>6297</name>
             <snippet/>
             <description><![CDATA[
-              <table>
-                <tr><td>Longitude: -71.105116 </td></tr>
-                <tr><td>Latitude: 42.457616 </td></tr>
-                <tr><td>Altitude: 239.000 ft </td></tr>
-                <tr><td>Time: 2001-06-02T03:27:04Z </td></tr>
-              </table>
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+<table>
+<tr><td>Longitude: -71.105116 </td></tr>
+<tr><td>Latitude: 42.457616 </td></tr>
+<tr><td>Altitude: 239.000 ft </td></tr>
+<tr><td>Time: 2001-06-02T03:27:04Z </td></tr>
+</table>
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               <longitude>-71.105116</longitude>
               <latitude>42.457616</latitude>
@@ -3484,13 +3485,13 @@
             <name>6283</name>
             <snippet/>
             <description><![CDATA[
-              <table>
-                <tr><td>Longitude: -71.105206 </td></tr>
-                <tr><td>Latitude: 42.453845 </td></tr>
-                <tr><td>Altitude: 218.821 ft </td></tr>
-                <tr><td>Time: 2001-11-16T23:03:38Z </td></tr>
-              </table>
-            ]]></description>
+<table>
+<tr><td>Longitude: -71.105206 </td></tr>
+<tr><td>Latitude: 42.453845 </td></tr>
+<tr><td>Altitude: 218.821 ft </td></tr>
+<tr><td>Time: 2001-11-16T23:03:38Z </td></tr>
+</table>
+]]></description>
             <LookAt>
               <longitude>-71.105206</longitude>
               <latitude>42.453845</latitude>
@@ -3508,13 +3509,13 @@
             <name>6280</name>
             <snippet/>
             <description><![CDATA[
-              <table>
-                <tr><td>Longitude: -71.105413 </td></tr>
-                <tr><td>Latitude: 42.451430 </td></tr>
-                <tr><td>Altitude: 188.859 ft </td></tr>
-                <tr><td>Time: 2001-11-16T23:03:38Z </td></tr>
-              </table>
-            ]]></description>
+<table>
+<tr><td>Longitude: -71.105413 </td></tr>
+<tr><td>Latitude: 42.451430 </td></tr>
+<tr><td>Altitude: 188.859 ft </td></tr>
+<tr><td>Time: 2001-11-16T23:03:38Z </td></tr>
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             <LookAt>
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@@ -3532,13 +3533,13 @@
             <name>6177</name>
             <snippet/>
             <description><![CDATA[
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-                <tr><td>Latitude: 42.448448 </td></tr>
-                <tr><td>Altitude: 204.000 ft </td></tr>
-                <tr><td>Time: 2001-06-02T03:27:04Z </td></tr>
-              </table>
-            ]]></description>
+<table>
+<tr><td>Longitude: -71.106158 </td></tr>
+<tr><td>Latitude: 42.448448 </td></tr>
+<tr><td>Altitude: 204.000 ft </td></tr>
+<tr><td>Time: 2001-06-02T03:27:04Z </td></tr>
+</table>
+]]></description>
             <LookAt>
               <longitude>-71.106158</longitude>
               <latitude>42.448448</latitude>
@@ -3556,13 +3557,13 @@
             <name>6176</name>
             <snippet/>
             <description><![CDATA[
-              <table>
-                <tr><td>Longitude: -71.106624 </td></tr>
-                <tr><td>Latitude: 42.447804 </td></tr>
-                <tr><td>Altitude: 205.000 ft </td></tr>
-                <tr><td>Time: 2001-06-02T03:27:04Z </td></tr>
-              </table>
-            ]]></description>
+<table>
+<tr><td>Longitude: -71.106624 </td></tr>
+<tr><td>Latitude: 42.447804 </td></tr>
+<tr><td>Altitude: 205.000 ft </td></tr>
+<tr><td>Time: 2001-06-02T03:27:04Z </td></tr>
+</table>
+]]></description>
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               <longitude>-71.106624</longitude>
               <latitude>42.447804</latitude>
@@ -3580,13 +3581,13 @@
             <name>6153</name>
             <snippet/>
             <description><![CDATA[
-              <table>
-                <tr><td>Longitude: -71.108882 </td></tr>
-                <tr><td>Latitude: 42.444773 </td></tr>
-                <tr><td>Altitude: 206.000 ft </td></tr>
-                <tr><td>Time: 2001-06-02T03:27:05Z </td></tr>
-              </table>
-            ]]></description>
+<table>
+<tr><td>Longitude: -71.108882 </td></tr>
+<tr><td>Latitude: 42.444773 </td></tr>
+<tr><td>Altitude: 206.000 ft </td></tr>
+<tr><td>Time: 2001-06-02T03:27:05Z </td></tr>
+</table>
+]]></description>
             <LookAt>
               <longitude>-71.108882</longitude>
               <latitude>42.444773</latitude>
@@ -3604,13 +3605,13 @@
             <name>6171</name>
             <snippet/>
             <description><![CDATA[
-              <table>
-                <tr><td>Longitude: -71.106301 </td></tr>
-                <tr><td>Latitude: 42.443592 </td></tr>
-                <tr><td>Altitude: 182.000 ft </td></tr>
-                <tr><td>Time: 2001-06-02T03:27:05Z </td></tr>
-              </table>
-            ]]></description>
+<table>
+<tr><td>Longitude: -71.106301 </td></tr>
+<tr><td>Latitude: 42.443592 </td></tr>
+<tr><td>Altitude: 182.000 ft </td></tr>
+<tr><td>Time: 2001-06-02T03:27:05Z </td></tr>
+</table>
+]]></description>
             <LookAt>
               <longitude>-71.106301</longitude>
               <latitude>42.443592</latitude>
@@ -3628,13 +3629,13 @@
             <name>6131</name>
             <snippet/>
             <description><![CDATA[
-              <table>
-                <tr><td>Longitude: -71.111441 </td></tr>
-                <tr><td>Latitude: 42.442981 </td></tr>
-                <tr><td>Altitude: 210.000 ft </td></tr>
-                <tr><td>Time: 2001-06-02T03:26:58Z </td></tr>
-              </table>
-            ]]></description>
+<table>
+<tr><td>Longitude: -71.111441 </td></tr>
+<tr><td>Latitude: 42.442981 </td></tr>
+<tr><td>Altitude: 210.000 ft </td></tr>
+<tr><td>Time: 2001-06-02T03:26:58Z </td></tr>
+</table>
+]]></description>
             <LookAt>
               <longitude>-71.111441</longitude>
               <latitude>42.442981</latitude>
@@ -3652,13 +3653,13 @@
             <name>6130</name>
             <snippet/>
             <description><![CDATA[
-              <table>
-                <tr><td>Longitude: -71.110975 </td></tr>
-                <tr><td>Latitude: 42.442196 </td></tr>
-                <tr><td>Altitude: 210.000 ft </td></tr>
-                <tr><td>Time: 2001-06-02T03:26:55Z </td></tr>
-              </table>
-            ]]></description>
+<table>
+<tr><td>Longitude: -71.110975 </td></tr>
+<tr><td>Latitude: 42.442196 </td></tr>
+<tr><td>Altitude: 210.000 ft </td></tr>
+<tr><td>Time: 2001-06-02T03:26:55Z </td></tr>
+</table>
+]]></description>
             <LookAt>
               <longitude>-71.110975</longitude>
               <latitude>42.442196</latitude>
@@ -3676,13 +3677,13 @@
             <name>6029</name>
             <snippet/>
             <description><![CDATA[
-              <table>
-                <tr><td>Longitude: -71.113220 </td></tr>
-                <tr><td>Latitude: 42.441754 </td></tr>
-                <tr><td>Altitude: 185.000 ft </td></tr>
-                <tr><td>Time: 2001-06-02T03:26:55Z </td></tr>
-              </table>
-            ]]></description>
+<table>
+<tr><td>Longitude: -71.113220 </td></tr>
+<tr><td>Latitude: 42.441754 </td></tr>
+<tr><td>Altitude: 185.000 ft </td></tr>
+<tr><td>Time: 2001-06-02T03:26:55Z </td></tr>
+</table>
+]]></description>
             <LookAt>
               <longitude>-71.113220</longitude>
               <latitude>42.441754</latitude>
@@ -3700,13 +3701,13 @@
             <name>6006</name>
             <snippet/>
             <description><![CDATA[
-              <table>
-                <tr><td>Longitude: -71.114456 </td></tr>
-                <tr><td>Latitude: 42.439018 </td></tr>
-                <tr><td>Altitude: 185.000 ft </td></tr>
-                <tr><td>Time: 2001-06-02T03:26:55Z </td></tr>
-              </table>
-            ]]></description>
+<table>
+<tr><td>Longitude: -71.114456 </td></tr>
+<tr><td>Latitude: 42.439018 </td></tr>
+<tr><td>Altitude: 185.000 ft </td></tr>
+<tr><td>Time: 2001-06-02T03:26:55Z </td></tr>
+</table>
+]]></description>
             <LookAt>
               <longitude>-71.114456</longitude>
               <latitude>42.439018</latitude>
@@ -3724,13 +3725,13 @@
             <name>6014MEADOW</name>
             <snippet/>
             <description><![CDATA[
-              <table>
-                <tr><td>Longitude: -71.113223 </td></tr>
-                <tr><td>Latitude: 42.436757 </td></tr>
-                <tr><td>Altitude: 123.415 ft </td></tr>
-                <tr><td>Time: 2001-11-28T21:05:28Z </td></tr>
-              </table>
-            ]]></description>
+<table>
+<tr><td>Longitude: -71.113223 </td></tr>
+<tr><td>Latitude: 42.436757 </td></tr>
+<tr><td>Altitude: 123.415 ft </td></tr>
+<tr><td>Time: 2001-11-28T21:05:28Z </td></tr>
+</table>
+]]></description>
             <LookAt>
               <longitude>-71.113223</longitude>
               <latitude>42.436757</latitude>
@@ -3748,13 +3749,13 @@
             <name>PANTHRCAVE</name>
             <snippet/>
             <description><![CDATA[
-              <table>
-                <tr><td>Longitude: -71.109942 </td></tr>
-                <tr><td>Latitude: 42.434980 </td></tr>
-                <tr><td>Altitude: 148.647 ft </td></tr>
-                <tr><td>Time: 2001-11-07T23:53:41Z </td></tr>
-              </table>
-            ]]></description>
+<table>
+<tr><td>Longitude: -71.109942 </td></tr>
+<tr><td>Latitude: 42.434980 </td></tr>
+<tr><td>Altitude: 148.647 ft </td></tr>
+<tr><td>Time: 2001-11-07T23:53:41Z </td></tr>
+</table>
+]]></description>
             <LookAt>
               <longitude>-71.109942</longitude>
               <latitude>42.434980</latitude>
@@ -3772,13 +3773,13 @@
             <name>GATE6</name>
             <snippet/>
             <description><![CDATA[
-              <table>
-                <tr><td>Longitude: -71.109236 </td></tr>
-                <tr><td>Latitude: 42.431240 </td></tr>
-                <tr><td>Altitude: 87.145 ft </td></tr>
-                <tr><td>Time: 2001-11-07T23:53:41Z </td></tr>
-              </table>
-            ]]></description>
+<table>
+<tr><td>Longitude: -71.109236 </td></tr>
+<tr><td>Latitude: 42.431240 </td></tr>
+<tr><td>Altitude: 87.145 ft </td></tr>
+<tr><td>Time: 2001-11-07T23:53:41Z </td></tr>
+</table>
+]]></description>
             <LookAt>
               <longitude>-71.109236</longitude>
               <latitude>42.431240</latitude>
@@ -3796,13 +3797,13 @@
             <name>BELLEVUE</name>
             <snippet/>
             <description><![CDATA[
-              <table>
-                <tr><td>Longitude: -71.107628 </td></tr>
-                <tr><td>Latitude: 42.430950 </td></tr>
-                <tr><td>Altitude: 77.000 ft </td></tr>
-                <tr><td>Time: 2001-06-02T00:18:15Z </td></tr>
-              </table>
-            ]]></description>
+<table>
+<tr><td>Longitude: -71.107628 </td></tr>
+<tr><td>Latitude: 42.430950 </td></tr>
+<tr><td>Altitude: 77.000 ft </td></tr>
+<tr><td>Time: 2001-06-02T00:18:15Z </td></tr>
+</table>
+]]></description>
             <LookAt>
               <longitude>-71.107628</longitude>
               <latitude>42.430950</latitude>
@@ -3823,53 +3824,53 @@
           <LineString>
             <tessellate>1</tessellate>
             <coordinates>
-              -71.107628,42.430950,23.47
-              -71.109236,42.431240,26.56
-              -71.109942,42.434980,45.31
-              -71.113223,42.436757,37.62
-              -71.114456,42.439018,56.39
-              -71.114803,42.438594,46.03
-              -71.116146,42.438917,44.83
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diff --git a/reference/track/gpx_garmin_extensions-kml_track.kml b/reference/track/gpx_garmin_extensions-kml_track.kml
index 1dcd4cd271998964477496dc83ec7cb9d08c3a75..192d1d41f8d1efe09387cc0ef043cc04ae46a83d 100644 (file)
--- a/reference/track/gpx_garmin_extensions-kml_track.kml
+++ b/reference/track/gpx_garmin_extensions-kml_track.kml
@@ -11,7 +11,7 @@
       <latitude>51.506248</latitude>
       <range>1300.000000</range>
     </LookAt>
-<!-- Normal track style -->
+    <!-- Normal track style -->
     <Style id="track_n">
       <IconStyle>
         <scale>.5</scale>
@@ -23,7 +23,7 @@
         <scale>0</scale>
       </LabelStyle>
     </Style>
-<!-- Highlighted track style -->
+    <!-- Highlighted track style -->
     <Style id="track_h">
       <IconStyle>
         <scale>1.2</scale>
@@ -42,7 +42,7 @@
         <styleUrl>#track_h</styleUrl>
       </Pair>
     </StyleMap>
-<!-- Normal multiTrack style -->
+    <!-- Normal multiTrack style -->
     <Style id="multiTrack_n">
       <IconStyle>
         <Icon>
@@ -54,7 +54,7 @@
         <width>6</width>
       </LineStyle>
     </Style>
-<!-- Highlighted multiTrack style -->
+    <!-- Highlighted multiTrack style -->
     <Style id="multiTrack_h">
       <IconStyle>
         <scale>1.2</scale>
@@ -77,7 +77,7 @@
         <styleUrl>#multiTrack_h</styleUrl>
       </Pair>
     </StyleMap>
-<!-- Normal waypoint style -->
+    <!-- Normal waypoint style -->
     <Style id="waypoint_n">
       <IconStyle>
         <Icon>
@@ -85,7 +85,7 @@
         </Icon>
       </IconStyle>
     </Style>
-<!-- Highlighted waypoint style -->
+    <!-- Highlighted waypoint style -->
     <Style id="waypoint_h">
       <IconStyle>
         <scale>1.2</scale>
@@ -112,10 +112,10 @@
     </Style>
     <Schema id="schema">
       <gx:SimpleArrayField name="heartrate" type="int">
-          <displayName>Heart Rate</displayName>
+        <displayName>Heart Rate</displayName>
       </gx:SimpleArrayField>
       <gx:SimpleArrayField name="cadence" type="int">
-          <displayName>Cadence</displayName>
+        <displayName>Cadence</displayName>
       </gx:SimpleArrayField>
     </Schema>
     <Folder>
@@ -184,20 +184,21 @@
         <snippet/>
         <description>
 <![CDATA[<table>
-            <tr><td><b>Distance</b> 85.9 ft </td></tr>
-            <tr><td><b>Min Alt</b> -51.588 ft </td></tr>
-            <tr><td><b>Max Alt</b> 0.449 ft </td></tr>
-            <tr><td><b>Max Speed</b> 11.3 mph </td></tr>
-            <tr><td><b>Avg Speed</b> 8.4 mph </td></tr>
-            <tr><td><b>Avg Heart Rate</b> 113.9 bpm </td></tr>
-            <tr><td><b>Min Heart Rate</b> 111 bpm </td></tr>
-            <tr><td><b>Max Heart Rate</b> 117 bpm </td></tr>
-            <tr><td><b>Avg Cadence</b> 135.0 rpm </td></tr>
-            <tr><td><b>Max Cadence</b> 153 rpm </td></tr>
-            <tr><td><b>Start Time</b> 2008-08-20T07:04:48Z  </td></tr>
-            <tr><td><b>End Time</b> 2008-08-20T07:04:55Z  </td></tr>
-          </table>]]>
-        </description>
+<tr><td><b>Distance</b> 85.9 ft </td></tr>
+<tr><td><b>Min Alt</b> -51.588 ft </td></tr>
+<tr><td><b>Max Alt</b> 0.449 ft </td></tr>
+<tr><td><b>Min Speed</b> 2.7 mph </td></tr>
+<tr><td><b>Max Speed</b> 11.3 mph </td></tr>
+<tr><td><b>Avg Speed</b> 8.4 mph </td></tr>
+<tr><td><b>Avg Heart Rate</b> 113.9 bpm </td></tr>
+<tr><td><b>Min Heart Rate</b> 111 bpm </td></tr>
+<tr><td><b>Max Heart Rate</b> 117 bpm </td></tr>
+<tr><td><b>Avg Cadence</b> 135.0 rpm </td></tr>
+<tr><td><b>Max Cadence</b> 153 rpm </td></tr>
+<tr><td><b>Start Time</b>2008-08-20T07:04:48Z</td></tr>
+<tr><td><b>End Time</b>2008-08-20T07:04:55Z</td></tr>
+</table>]]>
+</description>
         <TimeSpan>
           <begin>2008-08-20T07:04:48Z</begin>
           <end>2008-08-20T07:04:55Z</end>
@@ -208,16 +209,16 @@
             <name>2008-08-20T07:04:47Z-0</name>
             <snippet/>
             <description><![CDATA[
-              <table>
-                <tr><td>Longitude: -0.035187 </td></tr>
-                <tr><td>Latitude: 51.506172 </td></tr>
-                <tr><td>Altitude: 0.449 ft </td></tr>
-                <tr><td>Heart rate: 111 </td></tr>
-                <tr><td>Cadence: 151 </td></tr>
-                <tr><td>Heading: 360.0 </td></tr>
-                <tr><td>Time: 2008-08-20T07:04:48Z </td></tr>
-              </table>
-            ]]></description>
+<table>
+<tr><td>Longitude: -0.035187 </td></tr>
+<tr><td>Latitude: 51.506172 </td></tr>
+<tr><td>Altitude: 0.449 ft </td></tr>
+<tr><td>Heart rate: 111 </td></tr>
+<tr><td>Cadence: 151 </td></tr>
+<tr><td>Heading: 360.0 </td></tr>
+<tr><td>Time: 2008-08-20T07:04:48Z </td></tr>
+</table>
+]]></description>
             <LookAt>
               <longitude>-0.035187</longitude>
               <latitude>51.506172</latitude>
@@ -235,17 +236,17 @@
             <name>2008-08-20T07:04:47Z-1</name>
             <snippet/>
             <description><![CDATA[
-              <table>
-                <tr><td>Longitude: -0.035242 </td></tr>
-                <tr><td>Latitude: 51.506196 </td></tr>
-                <tr><td>Altitude: -2.703 ft </td></tr>
-                <tr><td>Heart rate: 112 </td></tr>
-                <tr><td>Cadence: 153 </td></tr>
-                <tr><td>Speed: 10.4 mph </td></tr>
-                <tr><td>Heading: 305.0 </td></tr>
-                <tr><td>Time: 2008-08-20T07:04:49Z </td></tr>
-              </table>
-            ]]></description>
+<table>
+<tr><td>Longitude: -0.035242 </td></tr>
+<tr><td>Latitude: 51.506196 </td></tr>
+<tr><td>Altitude: -2.703 ft </td></tr>
+<tr><td>Heart rate: 112 </td></tr>
+<tr><td>Cadence: 153 </td></tr>
+<tr><td>Speed: 10.4 mph </td></tr>
+<tr><td>Heading: 305.0 </td></tr>
+<tr><td>Time: 2008-08-20T07:04:49Z </td></tr>
+</table>
+]]></description>
             <LookAt>
               <longitude>-0.035242</longitude>
               <latitude>51.506196</latitude>
@@ -263,17 +264,17 @@
             <name>2008-08-20T07:04:47Z-2</name>
             <snippet/>
             <description><![CDATA[
-              <table>
-                <tr><td>Longitude: -0.035303 </td></tr>
-                <tr><td>Latitude: 51.506221 </td></tr>
-                <tr><td>Altitude: -51.588 ft </td></tr>
-                <tr><td>Heart rate: 113 </td></tr>
-                <tr><td>Cadence: 153 </td></tr>
-                <tr><td>Speed: 11.3 mph </td></tr>
-                <tr><td>Heading: 303.4 </td></tr>
-                <tr><td>Time: 2008-08-20T07:04:50Z </td></tr>
-              </table>
-            ]]></description>
+<table>
+<tr><td>Longitude: -0.035303 </td></tr>
+<tr><td>Latitude: 51.506221 </td></tr>
+<tr><td>Altitude: -51.588 ft </td></tr>
+<tr><td>Heart rate: 113 </td></tr>
+<tr><td>Cadence: 153 </td></tr>
+<tr><td>Speed: 11.3 mph </td></tr>
+<tr><td>Heading: 303.4 </td></tr>
+<tr><td>Time: 2008-08-20T07:04:50Z </td></tr>
+</table>
+]]></description>
             <LookAt>
               <longitude>-0.035303</longitude>
               <latitude>51.506221</latitude>
@@ -291,17 +292,17 @@
             <name>2008-08-20T07:04:47Z-3</name>
             <snippet/>
             <description><![CDATA[
-              <table>
-                <tr><td>Longitude: -0.035354 </td></tr>
-                <tr><td>Latitude: 51.506246 </td></tr>
-                <tr><td>Altitude: -51.588 ft </td></tr>
-                <tr><td>Heart rate: 114 </td></tr>
-                <tr><td>Cadence: 153 </td></tr>
-                <tr><td>Speed: 10.1 mph </td></tr>
-                <tr><td>Heading: 308.2 </td></tr>
-                <tr><td>Time: 2008-08-20T07:04:51Z </td></tr>
-              </table>
-            ]]></description>
+<table>
+<tr><td>Longitude: -0.035354 </td></tr>
+<tr><td>Latitude: 51.506246 </td></tr>
+<tr><td>Altitude: -51.588 ft </td></tr>
+<tr><td>Heart rate: 114 </td></tr>
+<tr><td>Cadence: 153 </td></tr>
+<tr><td>Speed: 10.1 mph </td></tr>
+<tr><td>Heading: 308.2 </td></tr>
+<tr><td>Time: 2008-08-20T07:04:51Z </td></tr>
+</table>
+]]></description>
             <LookAt>
               <longitude>-0.035354</longitude>
               <latitude>51.506246</latitude>
@@ -319,16 +320,16 @@
             <name>2008-08-20T07:04:47Z-4</name>
             <snippet/>
             <description><![CDATA[
-              <table>
-                <tr><td>Longitude: -0.035400 </td></tr>
-                <tr><td>Latitude: 51.506271 </td></tr>
-                <tr><td>Altitude: -50.013 ft </td></tr>
-                <tr><td>Heart rate: 114 </td></tr>
-                <tr><td>Speed: 9.5 mph </td></tr>
-                <tr><td>Heading: 311.1 </td></tr>
-                <tr><td>Time: 2008-08-20T07:04:52Z </td></tr>
-              </table>
-            ]]></description>
+<table>
+<tr><td>Longitude: -0.035400 </td></tr>
+<tr><td>Latitude: 51.506271 </td></tr>
+<tr><td>Altitude: -50.013 ft </td></tr>
+<tr><td>Heart rate: 114 </td></tr>
+<tr><td>Speed: 9.5 mph </td></tr>
+<tr><td>Heading: 311.1 </td></tr>
+<tr><td>Time: 2008-08-20T07:04:52Z </td></tr>
+</table>
+]]></description>
             <LookAt>
               <longitude>-0.035400</longitude>
               <latitude>51.506271</latitude>
@@ -346,16 +347,16 @@
             <name>2008-08-20T07:04:47Z-5</name>
             <snippet/>
             <description><![CDATA[
-              <table>
-                <tr><td>Longitude: -0.035438 </td></tr>
-                <tr><td>Latitude: 51.506297 </td></tr>
-                <tr><td>Altitude: -50.013 ft </td></tr>
-                <tr><td>Heart rate: 114 </td></tr>
-                <tr><td>Speed: 8.8 mph </td></tr>
-                <tr><td>Heading: 317.7 </td></tr>
-                <tr><td>Time: 2008-08-20T07:04:53Z </td></tr>
-              </table>
-            ]]></description>
+<table>
+<tr><td>Longitude: -0.035438 </td></tr>
+<tr><td>Latitude: 51.506297 </td></tr>
+<tr><td>Altitude: -50.013 ft </td></tr>
+<tr><td>Heart rate: 114 </td></tr>
+<tr><td>Speed: 8.8 mph </td></tr>
+<tr><td>Heading: 317.7 </td></tr>
+<tr><td>Time: 2008-08-20T07:04:53Z </td></tr>
+</table>
+]]></description>
             <LookAt>
               <longitude>-0.035438</longitude>
               <latitude>51.506297</latitude>
@@ -373,17 +374,17 @@
             <name>2008-08-20T07:04:47Z-6</name>
             <snippet/>
             <description><![CDATA[
-              <table>
-                <tr><td>Longitude: -0.035462 </td></tr>
-                <tr><td>Latitude: 51.506315 </td></tr>
-                <tr><td>Altitude: -50.013 ft </td></tr>
-                <tr><td>Heart rate: 116 </td></tr>
-                <tr><td>Cadence: 76 </td></tr>
-                <tr><td>Speed: 5.8 mph </td></tr>
-                <tr><td>Heading: 320.3 </td></tr>
-                <tr><td>Time: 2008-08-20T07:04:54Z </td></tr>
-              </table>
-            ]]></description>
+<table>
+<tr><td>Longitude: -0.035462 </td></tr>
+<tr><td>Latitude: 51.506315 </td></tr>
+<tr><td>Altitude: -50.013 ft </td></tr>
+<tr><td>Heart rate: 116 </td></tr>
+<tr><td>Cadence: 76 </td></tr>
+<tr><td>Speed: 5.8 mph </td></tr>
+<tr><td>Heading: 320.3 </td></tr>
+<tr><td>Time: 2008-08-20T07:04:54Z </td></tr>
+</table>
+]]></description>
             <LookAt>
               <longitude>-0.035462</longitude>
               <latitude>51.506315</latitude>
@@ -401,17 +402,17 @@
             <name>2008-08-20T07:04:47Z-7</name>
             <snippet/>
             <description><![CDATA[
-              <table>
-                <tr><td>Longitude: -0.035472 </td></tr>
-                <tr><td>Latitude: 51.506324 </td></tr>
-                <tr><td>Altitude: -50.013 ft </td></tr>
-                <tr><td>Heart rate: 117 </td></tr>
-                <tr><td>Cadence: 124 </td></tr>
-                <tr><td>Speed: 2.7 mph </td></tr>
-                <tr><td>Heading: 325.3 </td></tr>
-                <tr><td>Time: 2008-08-20T07:04:55Z </td></tr>
-              </table>
-            ]]></description>
+<table>
+<tr><td>Longitude: -0.035472 </td></tr>
+<tr><td>Latitude: 51.506324 </td></tr>
+<tr><td>Altitude: -50.013 ft </td></tr>
+<tr><td>Heart rate: 117 </td></tr>
+<tr><td>Cadence: 124 </td></tr>
+<tr><td>Speed: 2.7 mph </td></tr>
+<tr><td>Heading: 325.3 </td></tr>
+<tr><td>Time: 2008-08-20T07:04:55Z </td></tr>
+</table>
+]]></description>
             <LookAt>
               <longitude>-0.035472</longitude>
               <latitude>51.506324</latitude>
@@ -432,15 +433,15 @@
           <LineString>
             <tessellate>1</tessellate>
             <coordinates>
-              -0.035187,51.506172,0.14
-              -0.035242,51.506196,-0.82
-              -0.035303,51.506221,-15.72
-              -0.035354,51.506246,-15.72
-              -0.035400,51.506271,-15.24
-              -0.035438,51.506297,-15.24
-              -0.035462,51.506315,-15.24
-              -0.035472,51.506324,-15.24
-            </coordinates>
+-0.035187,51.506172,0.14
+-0.035242,51.506196,-0.82
+-0.035303,51.506221,-15.72
+-0.035354,51.506246,-15.72
+-0.035400,51.506271,-15.24
+-0.035438,51.506297,-15.24
+-0.035462,51.506315,-15.24
+-0.035472,51.506324,-15.24
+</coordinates>
           </LineString>
         </Placemark>
       </Folder>

diff --git a/reference/track/tracks~gpx.kml b/reference/track/tracks~gpx.kml
index 06439e22835c2f8a6b1641da9ae62f9d13042201..0400a7e7edaf91a25c8a558c6e27055e5673e8a8 100644 (file)
--- a/reference/track/tracks~gpx.kml
+++ b/reference/track/tracks~gpx.kml
@@ -784,15 +784,16 @@
 <tr><td><b>Distance</b> 7.7 km </td></tr>
 <tr><td><b>Min Alt</b> 0.000 meters </td></tr>
 <tr><td><b>Max Alt</b> 7.000 meters </td></tr>
+<tr><td><b>Min Speed</b> 361.3 meters/hour </td></tr>
 <tr><td><b>Max Speed</b> 41.1 km/hour </td></tr>
 <tr><td><b>Avg Speed</b> 3.8 km/hour </td></tr>
-<tr><td><b>Start Time</b>2002-05-25T17:06:21Z</td></tr>
-<tr><td><b>End Time</b>2002-05-25T19:05:57Z</td></tr>
+<tr><td><b>Start Time</b>2002-05-25T17:06:21.250Z</td></tr>
+<tr><td><b>End Time</b>2002-05-25T19:05:57.980Z</td></tr>
 </table>]]>
 </description>
         <TimeSpan>
-          <begin>2002-05-25T17:06:21Z</begin>
-          <end>2002-05-25T19:05:57Z</end>
+          <begin>2002-05-25T17:06:21.250Z</begin>
+          <end>2002-05-25T19:05:57.980Z</end>
         </TimeSpan>
         <Folder>
           <name>Points</name>

diff --git a/route.cc b/route.cc
index 5348795ed3eebe83b7763e4e9a88e6797cc19914..af61a2d29e2f3343de31f8599a5ba46ed904a8d2 100644 (file)
--- a/route.cc
+++ b/route.cc
@@ -520,7 +520,7 @@ tracks_to_routes()
  * If trkdatap is non-null upon entry, a pointer to an allocated collection
  * (hopefully interesting) statistics about the track will be placed there.
  */
-void track_recompute(const route_head* trk, computed_trkdata** trkdatap)
+computed_trkdata track_recompute(const route_head* trk)
 {
   Waypoint first;
   Waypoint* prev = &first;
@@ -530,18 +530,11 @@ void track_recompute(const route_head* trk, computed_trkdata** trkdatap)
   double tot_hrt = 0.0;
   int pts_cad = 0;
   double tot_cad = 0.0;
-  computed_trkdata* tdata = (computed_trkdata*)xcalloc(1, sizeof(computed_trkdata));
-
-  if (trkdatap) {
-    *trkdatap = tdata;
-  }
+  computed_trkdata tdata;
 
 //  first.latitude = 0;
 //  first.longitude = 0;
 //  first.creation_time = 0;
-  tdata->min_hrt =  9999;
-  tdata->min_alt = -unknown_alt;
-  tdata->max_alt =  unknown_alt;
 
   QUEUE_FOR_EACH((queue*)&trk->waypoint_list, elem, tmp) {
     Waypoint* thisw = reinterpret_cast<Waypoint *>(elem);
@@ -561,7 +554,7 @@ void track_recompute(const route_head* trk, computed_trkdata** trkdatap)
      * Avoid that 6300 mile jump as we move from 0,0.
      */
     if (plat && plon) {
-      tdata->distance_meters += dist;
+      tdata.distance_meters += dist;
     }
 
     /*
@@ -580,73 +573,72 @@ void track_recompute(const route_head* trk, computed_trkdata** trkdatap)
       }
     }
     if (WAYPT_HAS(thisw, speed)) {
-      if (thisw->speed > tdata->max_spd) {
-        tdata->max_spd = thisw->speed;
+      if ((!tdata.min_spd) || (thisw->speed < tdata.min_spd)) {
+        tdata.min_spd = thisw->speed;
       }
-      if (thisw->speed < tdata->min_spd) {
-        tdata->min_spd = thisw->speed;
+      if ((!tdata.max_spd) || (thisw->speed > tdata.max_spd)) {
+        tdata.max_spd = thisw->speed;
       }
     }
 
     if (thisw->altitude != unknown_alt) {
-      if (thisw->altitude < tdata->min_alt) {
-        tdata->min_alt = thisw->altitude;
+      if ((!tdata.min_alt) || (thisw->altitude < tdata.min_alt)) {
+        tdata.min_alt = thisw->altitude;
       }
-      if (thisw->altitude > tdata->max_alt) {
-        tdata->max_alt = thisw->altitude;
+      if ((!tdata.max_alt) || (thisw->altitude > tdata.max_alt)) {
+        tdata.max_alt = thisw->altitude;
       }
     }
 
     if (thisw->heartrate > 0) {
       pts_hrt++;
-      tot_hrt += (float) thisw->heartrate;
-    }
-
-    if ((thisw->heartrate > 0) && (thisw->heartrate < tdata->min_hrt)) {
-      tdata->min_hrt = (int) thisw->heartrate;
+      tot_hrt += thisw->heartrate;
     }
 
-    if ((thisw->heartrate > 0) && (thisw->heartrate > tdata->max_hrt)) {
-      tdata->max_hrt = (int) thisw->heartrate;
+    if (thisw->heartrate > 0) {
+      if ((!tdata.min_hrt) || (thisw->heartrate < tdata.min_hrt)) {
+        tdata.min_hrt = thisw->heartrate;
+      }
+      if ((!tdata.max_hrt) || (thisw->heartrate > tdata.max_hrt)) {
+        tdata.max_hrt = thisw->heartrate;
+      }
     }
 
     if (thisw->cadence > 0) {
       pts_cad++;
-      tot_cad += (float) thisw->cadence;
+      tot_cad += thisw->cadence;
     }
 
-    if ((thisw->cadence > 0) && (thisw->cadence > tdata->max_cad)) {
-      tdata->max_cad = (int) thisw->cadence;
+    if ((thisw->cadence > 0) && ((!tdata.max_cad) || (thisw->cadence > tdata.max_cad))) {
+      tdata.max_cad = thisw->cadence;
     }
 
-    if (thisw->GetCreationTime().isValid() && (thisw->GetCreationTime().toTime_t() < tdata->start)) {
-      tdata->start = thisw->GetCreationTime().toTime_t();
-    }
+    if (thisw->GetCreationTime().isValid()) {
+      if (!tdata.start.isValid() || (thisw->GetCreationTime() < tdata.start)) {
+        tdata.start = thisw->GetCreationTime();
+      }
 
-    if (thisw->creation_time.toTime_t() > tdata->end) {
-      tdata->end = thisw->GetCreationTime().toTime_t();
-      if (tdata->start == 0) {
-        tdata->start = tdata->end;
+      if (!tdata.end.isValid() || (thisw->GetCreationTime() > tdata.end)) {
+        tdata.end = thisw->GetCreationTime();
       }
     }
-    prev = thisw;
+
     if (thisw->shortname.isEmpty()) {
       thisw->shortname = QString("%1-%2").arg(trk->rte_name).arg(tkpt);
     }
     tkpt++;
+    prev = thisw;
   }
 
   if (pts_hrt > 0) {
-    tdata->avg_hrt = tot_hrt / (float) pts_hrt;
+    tdata.avg_hrt = tot_hrt / pts_hrt;
   }
 
   if (pts_cad > 0) {
-    tdata->avg_cad = tot_cad / (float) pts_cad;
+    tdata.avg_cad = tot_cad / pts_cad;
   }
 
-  if (!trkdatap) {
-    xfree(tdata);
-  }
+  return tdata;
 }
 
 route_head::route_head() :

diff --git a/src/core/optional.h b/src/core/optional.h
new file mode 100644 (file)
index 0000000..3ae4efb
--- /dev/null
+++ b/src/core/optional.h
@@ -0,0 +1,248 @@
+/*
+    Copyright (C) 2018 Robert Lipe, robertlipe@gpsbabel.org
+
+    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; either version 2 of the License, or
+    (at your option) any later version.
+
+    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 USA
+
+ */
+
+// someday, when we require c++17,
+// the intent is that this can all go away by
+// changing:
+// 1. 'gpsbabel_optional::optional' to 'std::optional',
+// 2. 'include "optional.h"' becomes 'include <optional>'.
+
+#if __cplusplus >= 201703L
+#warning "using std::optional"
+#include <optional>
+#define gpsbabel_optional std
+#else
+#include <cassert>
+namespace gpsbabel_optional
+{
+template<typename T>
+class optional
+{
+private:
+  bool null{true};
+  T v{};
+
+public:
+  constexpr optional() noexcept = default;
+  explicit optional(T n) : null{false}, v{n} {}
+
+  // There is a known mismatch with std::optional.
+  // o = {}; should act like reset() so o.has_value() returns false.
+  //         instead o.has_value() returns true and o.value() returns 0.
+  optional& operator=(const T& rhs)
+  {
+    null = false;
+    v = rhs;
+    return *this;
+  }
+
+  // if constexpr will conflict with constexpr non-const version in c++11, ok in c++14.
+  // intentionally does not check to see if a value is contained, use value() for that.
+  const T& operator*() const&
+  {
+    return v;
+  }
+
+  // if constexpr will conflict with constexpr const version in c++11, ok in c++14.
+  // intentionally does not check to see if a value is contained, use value() for that.
+  T& operator*()&
+  {
+    return v;
+  }
+
+  constexpr explicit operator bool() const noexcept
+  {
+    return !null;
+  }
+
+  constexpr bool has_value() const noexcept
+  {
+    return !null;
+  }
+
+  // if constexpr will conflict with constexpr const version in c++11, ok in c++14.
+  // if constexpr cannot use assert.
+  T& value() &
+  {
+    assert(!null);
+    return v;
+  }
+
+  // if constexpr will conflict with constexpr non-const version in c++11, ok in c++14.
+  // if constexpr cannot use assert.
+  const T& value() const&
+  {
+    assert(!null);
+    return v;
+  }
+
+  void reset() noexcept
+  {
+    null = true;
+  }
+};
+
+template< class T, class U >
+constexpr bool operator==(const optional<T>& lhs, const optional<U>& rhs)
+{
+  if (bool(lhs) != bool(rhs)) {
+    return false;
+  }
+  if (bool(lhs) == false) {
+    return true;
+  }
+  return *lhs == *rhs;
+}
+
+template< class T, class U >
+constexpr bool operator!=(const optional<T>& lhs, const optional<U>& rhs)
+{
+  if (bool(lhs) != bool(rhs)) {
+    return true;
+  }
+  if (bool(lhs) == false) {
+    return false;
+  }
+  return *lhs != *rhs;
+}
+
+template< class T, class U >
+constexpr bool operator<(const optional<T>& lhs, const optional<U>& rhs)
+{
+  if (!rhs) {
+    return false;
+  }
+  if (!lhs) {
+    return true;
+  }
+  return *lhs < *rhs;
+}
+
+template< class T, class U >
+constexpr bool operator>(const optional<T>& lhs, const optional<U>& rhs)
+{
+  if (!lhs) {
+    return false;
+  }
+  if (!rhs) {
+    return true;
+  }
+  return *lhs > *rhs;
+}
+
+template< class T, class U >
+constexpr bool operator<=(const optional<T>& lhs, const optional<U>& rhs)
+{
+  if (!lhs) {
+    return true;
+  }
+  if (!rhs) {
+    return false;
+  }
+  return *lhs <= *rhs;
+}
+
+template< class T, class U >
+constexpr bool operator>=(const optional<T>& lhs, const optional<U>& rhs)
+{
+  if (!rhs) {
+    return true;
+  }
+  if (!lhs) {
+    return false;
+  }
+  return *lhs >= *rhs;
+}
+
+
+template< class T, class U >
+constexpr bool operator==(const optional<T>& opt, const U& value)
+{
+  return bool(opt) ? (*opt == value) : false;
+}
+
+template< class T, class U >
+constexpr bool operator==(const T& value, const optional<U>& opt)
+{
+  return bool(opt) ? (value == *opt) : false;
+}
+
+template< class T, class U >
+constexpr bool operator!=(const optional<T>& opt, const U& value)
+{
+  return bool(opt) ? (*opt != value) : true;
+}
+
+template< class T, class U >
+constexpr bool operator!=(const T& value, const optional<U>& opt)
+{
+  return bool(opt) ? (value != *opt) : true;
+}
+
+template< class T, class U >
+constexpr bool operator<(const optional<T>& opt, const U& value)
+{
+  return bool(opt) ? (*opt < value) : true;
+}
+
+template< class T, class U >
+constexpr bool operator<(const T& value, const optional<U>& opt)
+{
+  return bool(opt) ? (value < *opt) : false;
+}
+
+template< class T, class U >
+constexpr bool operator<=(const optional<T>& opt, const U& value)
+{
+  return bool(opt) ? *opt <= value : true;
+}
+
+template< class T, class U >
+constexpr bool operator<=(const T& value, const optional<U>& opt)
+{
+  return bool(opt) ? value <= *opt : false;
+}
+
+template< class T, class U >
+constexpr bool operator>(const optional<T>& opt, const U& value)
+{
+  return bool(opt) ? (*opt > value) : false;
+}
+
+template< class T, class U >
+constexpr bool operator>(const T& value, const optional<U>& opt)
+{
+  return bool(opt) ? (value > *opt) : true;
+}
+
+template< class T, class U >
+constexpr bool operator>=(const optional<T>& opt, const U& value)
+{
+  return bool(opt) ? (*opt >= value) : false;
+}
+
+template< class T, class U >
+constexpr bool operator>=(const T& value, const optional<U>& opt)
+{
+  return bool(opt) ? (value >= *opt) : true;
+}
+
+} // namespace
+#endif
+