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    <p>The distance between two longitude/latitude points is calculated with the haversine formula. Here is a link with the theoretics: <a href="http://www.movable-type.co.uk/scripts/latlong.html" rel="nofollow">http://www.movable-type.co.uk/scripts/latlong.html</a></p> <p>I would use the distanceTo method which you already mentioned for your purpose. You have your current Location and all your Points of Interest. Just call Location.distanceTo(Poi) for each Point of Interest and if the distance is larger than 1000 meters you can draw the point to your map.</p> <p>If you don't have your PoIs as Location objects just build them like this:</p> <pre><code>poiLocation = new Location(LocationManager.PASSIVE_PROVIDER); poiLocation.setLatitude(latitude); poiLocation.setLongitude(longitude); </code></pre> <p>I used the distanceTo method in a radar like app and worked just fine.</p>
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    1. POPut locations on map around user with a certain radius - android
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    1. COHi, thanks for the reply but that's exactly my problem, I don't have PoIs, I want to arbitrarily put "items" on the map for users to visit as in with Zombie Run and Spec Trek. Say the user starts the app, it shows their position in the middle of a mapview and 3 or markers around them that they have to visit, I don't know how to place those markers because I don't know how to work out say 10m from the user and then place a marker there. So I kind of need a distanceTo() type function in reverse that lets me specifiy the distance and it creates a marker at that point long/lat.
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    2. COI don't think there is a method which provides you every GeoPoint or Location in a defined radius but you could calculate those points yourself. Just look into the link I provided. There is a section called "Destination point given distance and bearing from start point". There you have a formular with a given Geo Coordinate (your current location) and you provide the distance and bearing in degrees. With that formular you can calculate specific Geo Coordinates and display them on your map.
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    3. COAh, thank you very much. I still can't get it working though, neither in my app or on the website if I change the values. The problem with the website is that it doesn't say what value to use for the radius of the earth. So putting in the user's position (I'm in england) and having the radius of earth as the mean radius of earth taken from wikipedia as 6371, a distance of 1km and a bearing of 2 (Don't know if this should just be an int but that's what I've done) it decides a point 1km away is in Peru, which obviously isn't the case :-) Any help would be met with extreme gratitude
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