https://svn.boost.org/trac10/ticket/11982 <p> Distance between a point and a linestring is incorrect when using spherical_equatorial coordinates and haversine strategy. It looks like it is always using radius = 1.0. </p> <p> Example: </p> <pre class="wiki">#include &lt;iostream&gt; #include &lt;boost/geometry.hpp&gt; namespace bg = boost::geometry; typedef bg::model::point&lt;double, 2, bg::cs::spherical_equatorial&lt;bg::degree&gt; &gt; pt; typedef bg::model::linestring&lt;pt&gt; pt_line; int main() { const double earthRadius = 6371.0 * 1000.0; pt oslo(10.733557, 59.911923); pt sandvika(10.521812, 59.887214); pt trondheim(10.4, 63.43); // works correct double d1 = bg::distance(sandvika, trondheim, bg::strategy::distance::haversine&lt;double&gt;(earthRadius)); double d2 = bg::distance(oslo, trondheim, bg::strategy::distance::haversine&lt;double&gt;(earthRadius)); std::cout &lt;&lt; "Sandvika-Trondheim " &lt;&lt; d1 &lt;&lt; std::endl; std::cout &lt;&lt; "Oslo-Trondheim " &lt;&lt; d2 &lt;&lt; std::endl; pt_line ll; ll.push_back(oslo); ll.push_back(sandvika); // Does not work double d3 = bg::distance(trondheim, ll, bg::strategy::distance::haversine&lt;double&gt;(earthRadius)); std::cout &lt;&lt; "Oslo-Sandvika - Trondheim " &lt;&lt; d3 &lt;&lt; std::endl; return 0; } </pre><p> Output: </p> <pre class="wiki">Sandvika-Trondheim 393992 Oslo-Trondheim 391587 Oslo-Sandvika - Trondheim 0.0614639 </pre><p> Note that the last number differs with a factor of 6371000 from the correct 391587. </p> <p> It looks like distance/backward_compatibility.hpp is ignoring the incoming strategy in last argument to apply. </p> en-us /htdocs/site/boost.png https://svn.boost.org/trac10/ticket/11982 Trac 1.4.3 anonymous Fri, 12 Feb 2016 12:05:57 GMT https://svn.boost.org/trac10/ticket/11982 https://svn.boost.org/trac10/ticket/11982 <ul> <li><strong>attachment</strong> → <span class="trac-field-new">test_distance.cc</span> </li> </ul> <p> Example program. </p> Ticket awulkiew Fri, 12 Feb 2016 22:12:25 GMT