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POGet Latitude-Longitude Value from Distance value from Drawing Route in Android
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  1. POGet Latitude-Longitude Value from Distance value from Drawing Route in Android
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    copied!<p>I have two Geopoints </p> <pre><code>GeoPoint gp1; GeoPoint gp2; </code></pre> <p>I also have distance between these two geopoints. As of now it is 174 km. I need accurate middle geopoint between this two geopoint's so how can I get Middle GeoPoint.</p> <p>Above two GeoPoint is Part of Route Draw which is not straight so i need Middle Point of Drawing route not straight line </p> <p>my code:</p> <pre><code>List&lt;GeoPoint&gt; _geopoints = decodePoly(_path); GeoPoint gp1; GeoPoint gp2; gp2 = _geopoints.get(0); System.out.println("gp2 "+gp2); System.out.println("_geopoints"+_geopoints.size()); System.out.println("_midgeopoint"+_geopoints.size()/2); mGeoPointMiddleOne=_geopoints.get(_geopoints.size()/2); private List&lt;GeoPoint&gt; decodePoly(String encoded) { List&lt;GeoPoint&gt; poly = new ArrayList&lt;GeoPoint&gt;(); int index = 0, len = encoded.length(); int lat = 0, lng = 0; while (index &lt; len) { int b, shift = 0, result = 0; do { b = encoded.charAt(index++) - 63; result |= (b &amp; 0x1f) &lt;&lt; shift; shift += 5; } while (b &gt;= 0x20); int dlat = ((result &amp; 1) != 0 ? ~(result &gt;&gt; 1) : (result &gt;&gt; 1)); lat += dlat; shift = 0; result = 0; do { b = encoded.charAt(index++) - 63; result |= (b &amp; 0x1f) &lt;&lt; shift; shift += 5; } while (b &gt;= 0x20); int dlng = ((result &amp; 1) != 0 ? ~(result &gt;&gt; 1) : (result &gt;&gt; 1)); lng += dlng; GeoPoint p = new GeoPoint((int) (((double) lat / 1E5) * 1E6), (int) (((double) lng / 1E5) * 1E6)); poly.add(p); } return poly; } </code></pre> <p>above function decoePoly(path) is responsible for drawing route between two geopoints so i get route between two points.</p> <p>and i also get distance between these two geopoints from calling Google map api for drawing route which is below</p> <pre><code>http://maps.googleapis.com/maps/api/directions/xml? origin=52.31,16.71&amp;destination=51.27,6.75&amp;sensor=false </code></pre> <p>so i get distance between two points from tag in web services </p> <p>so my requirment is how can i get latitude-longitude at middle distance value from this route?</p>
 

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