diff --git a/dump1090.c b/dump1090.c
index c6f41f1..8376f6f 100644
--- a/dump1090.c
+++ b/dump1090.c
@@ -3487,7 +3487,7 @@ int decodeHexMessage(struct client *c, char *hex) {
return (0);
}
-/* Return a description of planes in json. */
+/* Return a description of planes in json. No metric conversion. */
char *aircraftsToJson(int *len) {
time_t now = time(NULL);
struct aircraft *a = Modes.aircrafts;
@@ -3498,7 +3498,6 @@ char *aircraftsToJson(int *len) {
l = snprintf(p,buflen,"[\n");
p += l; buflen -= l;
while(a) {
- int altitude = a->altitude, speed = a->speed;
int position = 0;
int track = 0;
@@ -3507,11 +3506,6 @@ char *aircraftsToJson(int *len) {
continue;
}
- /* Convert units to metric if --metric was specified. */
- if (Modes.metric) {
- altitude = (int) (altitude / 3.2828);
- speed = (int) (speed * 1.852);
- }
if (a->bFlags & MODES_ACFLAGS_LATLON_VALID) {
position = 1;
@@ -3521,6 +3515,7 @@ char *aircraftsToJson(int *len) {
track = 1;
}
+ // No metric conversion
l = snprintf(p,buflen,
"{\"hex\":\"%06x\", \"squawk\":\"%04x\", \"flight\":\"%s\", \"lat\":%f, "
"\"lon\":%f, \"validposition\":%d, \"altitude\":%d, \"track\":%d, \"validtrack\":%d,"
diff --git a/public_html/config.js b/public_html/config.js
index bd6dcda..0bb539a 100644
--- a/public_html/config.js
+++ b/public_html/config.js
@@ -5,6 +5,10 @@
//
// --------------------------------------------------------
+// -- Output Settings -------------------------------------
+// Show metric values
+Metric = false; // true|false
+
// -- Map settings ----------------------------------------
// The Latitude and Longitude in decimal format
CONST_CENTERLAT = 45.0;
diff --git a/public_html/gmap.html b/public_html/gmap.html
index 7bdd0f2..d4beb6f 100644
--- a/public_html/gmap.html
+++ b/public_html/gmap.html
@@ -2,7 +2,7 @@
-
+
diff --git a/public_html/script.js b/public_html/script.js
index d6048ba..c3acfb4 100644
--- a/public_html/script.js
+++ b/public_html/script.js
@@ -232,7 +232,11 @@ function refreshSelected() {
html += '| ';
if (selected) {
- html += ' | | Altitude: ' + selected.altitude + ' | ';
+ if (Metric) {
+ html += '
| Altitude: ' + Math.round(selected.altitude / 3.2828) + ' m | ';
+ } else {
+ html += '
| Altitude: ' + selected.altitude + ' ft | ';
+ }
} else {
html += '
| Altitude: n/a | ';
}
@@ -245,7 +249,11 @@ function refreshSelected() {
html += '
| Speed: '
if (selected) {
- html += selected.speed + ' kt';
+ if (Metric) {
+ html += Math.round(selected.speed * 1.852) + ' km/h';
+ } else {
+ html += selected.speed + ' kt';
+ }
} else {
html += 'n/a';
}
@@ -271,43 +279,29 @@ function refreshSelected() {
// Let's show some extra data if we have site coordinates
if (SiteShow) {
- // Converts numeric degrees to radians
- if (typeof Number.prototype.toRad == 'undefined') {
- Number.prototype.toRad = function() {
- return this * Math.PI / 180;
- }
+ var siteLatLon = new google.maps.LatLng(SiteLat, SiteLon);
+ var planeLatLon = new google.maps.LatLng(selected.latitude, selected.longitude);
+ var dist = google.maps.geometry.spherical.computeDistanceBetween (siteLatLon, planeLatLon);
+
+ if (Metric) {
+ dist /= 1000;
+ } else {
+ dist /= 1852;
}
-
- // Converts radians to numeric (signed) degrees
- if (typeof Number.prototype.toDeg == 'undefined') {
- Number.prototype.toDeg = function() {
- return this * 180 / Math.PI;
- }
- }
-
- // Calculate distance
- var R = 6371; // km
- var dLat = (selected.latitude-SiteLat).toRad();
- var dLon = (selected.longitude-SiteLon).toRad();
- var a = Math.sin(dLat/2) * Math.sin(dLat/2) +
- Math.cos(SiteLat.toRad()) * Math.cos(selected.latitude.toRad()) *
- Math.sin(dLon/2) * Math.sin(dLon/2);
- var c = 2 * Math.atan2(Math.sqrt(a), Math.sqrt(1-a));
- var dist = (R * c) / 1.852;
- dist = (Math.round(dist*10)/10).toFixed(1);
-
- html += ' |
| Distance from Site: ' + dist + ' NM |
';
+ dist = (Math.round((dist)*10)/10).toFixed(1);
+ html += '| Distance from Site: ' + dist +
+ (Metric ? ' km' : ' NM') + ' |
';
} // End of SiteShow
} else {
if (SiteShow) {
- html += '| Distance from Site: n/a NM |
';
+ html += '| Distance from Site: n/a ' +
+ (Metric ? ' km' : ' NM') + ' |
';
} else {
html += 'n/a';
}
}
html += '';
-
document.getElementById('plane_detail').innerHTML = html;
}
@@ -401,8 +395,15 @@ function refreshTableInfo() {
} else {
html += ' | ';
}
- html += '' + tableplane.altitude + ' | ';
- html += '' + tableplane.speed + ' | ';
+
+ if (Metric) {
+ html += '' + Math.round(tableplane.altitude / 3.2828) + ' | ';
+ html += '' + Math.round(tableplane.speed * 1.852) + ' | ';
+ } else {
+ html += '' + tableplane.altitude + ' | ';
+ html += '' + tableplane.speed + ' | ';
+ }
+
html += '';
if (tableplane.vTrack) {
html += normalizeTrack(tableplane.track, tableplane.vTrack)[2];
|