Created
January 21, 2014 00:11
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Using the Haversine formula to calculate the distance between 2 points in JS. CHECK IT OUT IN YOUR CONSOLE
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| <html> | |
| <head> | |
| <title>Haversine Test</title> | |
| </head> | |
| <body> | |
| <script> | |
| myLoc = { | |
| lat: 35.597982, | |
| lng: -82.551416 | |
| }; | |
| thePoint = { | |
| lat: 35.253467, | |
| lng: -82.706852 | |
| }; | |
| rad = function(x) {return x*Math.PI/180;} | |
| distHaversine = function(p1, p2) { | |
| var R = 3960; // earth's mean radius in mi | |
| var dLat = rad(p2.lat - p1.lat); | |
| var dLong = rad(p2.lng - p1.lng); | |
| var a = Math.sin(dLat/2) * Math.sin(dLat/2) + | |
| Math.cos(rad(p1.lat)) * Math.cos(rad(p2.lat)) * Math.sin(dLong/2) * Math.sin(dLong/2); | |
| var c = 2 * Math.atan2(Math.sqrt(a), Math.sqrt(1-a)); | |
| var d = R * c; | |
| return d.toFixed(1); | |
| } | |
| console.log(distHaversine(myLoc, thePoint)); | |
| </script> | |
| </body> | |
| </html> |
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