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Javascript & JQuery & CSS > Google Maps API + GPS °Å¸® ±¸Çϱâ (javascript)

µî·ÏÀÏ : 2017-07-14 17:13 Á¶È¸¼ö : 34,165

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	var dDistance = 0;
	var dLat1InRad = lat1 * (Math.PI / 180.0);
	var dlng1InRad = lng1 * (Math.PI / 180.0);
	var dLat2InRad = lat2 * (Math.PI / 180.0);
	var dlng2InRad = lng2 * (Math.PI / 180.0);

	var dlng = dlng2InRad - dlng1InRad;
	var dLat = dLat2InRad - dLat1InRad;

	var a = Math.pow(Math.sin(dLat / 2.0), 2.0) + Math.cos(dLat1InRad) * Math.cos(dLat2InRad) * Math.pow(Math.sin(dlng / 2.0), 2.0);
	var c = 2.0 * Math.atan2(Math.sqrt(a), Math.sqrt(1.0 - a));

	var kEarthRadiusKms = 6376.5;
	dDistance = kEarthRadiusKms * c;
	
	alert("°Å¸® :" + dDistance);

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