I translated GeoTab's JS calc circle example into ColdFusion. We start with the lat and lng of an address. Then we take 1 degree steps around the circle. We could take 15 degree steps by changing the i++ to i = i + 15. Whatever number we use should go into 360 evenly to make it a closed circle. Otherwise, we'd need to do some fancy-schmancy calculating to close the circle. function generateCircleZonePoints(lat, lng, radius) { var earthRadius = 6371000 ; var latitude = lat * ( pi()/ 180 ); // in radians var longitude = lng * ( pi()/ 180 ); var angularDistance = radius / earthRadius; // radius is the radius of the circle we are drawing in meters local .zonePoints = []; Math = createObject( "java" , "java.lang.Math" ); // usage: Math.atan2(javacast("double",firstArg),javacast("double",secondArg)); for ( var i = 0 ; i <= 360 ; i++) { var radians = i * ( pi()/ 180 ); var latitudeRadians = asin...
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