Sphärischer Abstand - Versionsgeschichte

Chris: Spherische Abstand wurde nach Sphärischer Abstand verschoben

2012-07-20T16:10:02Z

Spherische Abstand wurde nach Sphärischer Abstand verschoben

87.234.208.65 am 3. Juni 2011 um 09:27 Uhr

2011-06-03T09:27:26Z

129.187.36.214 am 18. Januar 2010 um 12:22 Uhr

2010-01-18T12:22:06Z

129.187.36.214 am 14. Januar 2010 um 13:39 Uhr

2010-01-14T13:39:41Z

Neue Seite

Haversine formula:

R = earth’s radius (mean radius = 6,371km)
Δlat = lat2− lat1
Δlong = long2− long1
a = sin²(Δlat/2) + cos(lat1).cos(lat2).sin²(Δlong/2)
c = 2.atan2(√a, √(1−a))
d = R.c

(Note that angles need to be in radians to pass to trig functions).
JavaScript:

var R = 6371; // km
var dLat = (lat2-lat1).toRad();
var dLon = (lon2-lon1).toRad();
var a = Math.sin(dLat/2) * Math.sin(dLat/2) +
Math.cos(lat1.toRad()) * Math.cos(lat2.toRad()) *
Math.sin(dLon/2) * Math.sin(dLon/2);
var c = 2 * Math.atan2(Math.sqrt(a), Math.sqrt(1-a));
var d = R * c;

← Nächstältere Version		Version vom 3. Juni 2011, 09:27 Uhr
Zeile 20:		Zeile 20:
	var c = 2 * Math.atan2(Math.sqrt(a), Math.sqrt(1-a));		var c = 2 * Math.atan2(Math.sqrt(a), Math.sqrt(1-a));
	var d = R * c;		var d = R * c;
		+
		+	In Python
		+
		+	R = 6371.0;
		+	dLat = math.radians(lat2-lat1);
		+	dLon = math.radians(lon2-lon1);
		+	a = math.sin(dLat/2) * math.sin(dLat/2) +math.cos(math.radians(lat1)) * math.cos(math.radians(lat2)) * math.sin(dLon/2) * math.sin(dLon/2);
		+	c = 2 * math.atan2(math.sqrt(a), math.sqrt(1-a));
		+	d = R * c;

← Nächstältere Version	Version vom 20. Juli 2012, 16:10 Uhr
(kein Unterschied)

@@ Zeile 1: / Zeile 1: @@
-Haversine formula:
+ Haversine formula:
-R = earth’s radius (mean radius = 6,371km)
+ R = earth’s radius (mean radius = 6,371km)
-Δlat = lat2− lat1
+ Δlat = lat2− lat1
-Δlong = long2− long1
+ Δlong = long2− long1
-a = sin²(Δlat/2) + cos(lat1).cos(lat2).sin²(Δlong/2)
+ a = sin²(Δlat/2) + cos(lat1).cos(lat2).sin²(Δlong/2)
-c = 2.atan2(√a, √(1−a))
+ c = 2.atan2(√a, √(1−a))
-d = R.c
+ d = R.c
-(Note that angles need to be in radians to pass to trig functions).
+ (Note that angles need to be in radians to pass to trig functions).
-JavaScript:
+ JavaScript:
-var R = 6371; // km
+ var R = 6371; // km
-var dLat = (lat2-lat1).toRad();
+ var dLat = (lat2-lat1).toRad();
-var dLon = (lon2-lon1).toRad();
+ var dLon = (lon2-lon1).toRad();
-var a = Math.sin(dLat/2) * Math.sin(dLat/2) +
+ var a = Math.sin(dLat/2) * Math.sin(dLat/2) +
          Math.cos(lat1.toRad()) * Math.cos(lat2.toRad()) *
          Math.sin(dLon/2) * Math.sin(dLon/2);
-var c = 2 * Math.atan2(Math.sqrt(a), Math.sqrt(1-a));
+ var c = 2 * Math.atan2(Math.sqrt(a), Math.sqrt(1-a));
-var d = R * c;
+ var d = R * c;