Hello all,<div>I&#39;m using a custom polygon set (PolygonCollection) according to the guidelines here: <a href="http://www.boost.org/doc/libs/1_47_0/libs/polygon/doc/gtl_custom_polygon_set.htm">http://www.boost.org/doc/libs/1_47_0/libs/polygon/doc/gtl_custom_polygon_set.htm</a></div>

<div>There is one case  that I don&#39;t get any compiler error:</div><div><br></div><div>PolygonCollection p1, p2;</div><div>p1 &amp; p2;</div><div><br></div><div>There is this case that I do have an error:</div><div><br>

</div><div>PolygonCollection p1, p2;</div><div>PolygonCollection p3 = p1 &amp; p2;</div><div><br></div><div>The error is: error: conversion from &#39;boost::polygon::polygon_set_view&lt;PolygonCollection, PolygonCollection, 1&gt;&#39; to non-scalar type &#39;PolygonCollection&#39; requested</div>

<div><br></div><div>There is also this case that I have a compiler error:</div><div><br></div><div>PolygonCollection p1,p2,p3;</div><div>p3 = p1 &amp; p2; </div><div><br></div><div>The error is:error: no match for &#39;operator=&#39; in &#39;p3 = boost::polygon::operators::operator&amp;(const geometry_type_1&amp;, const geometry_type_2&amp;) [with geometry_type_1 = PolygonCollection, geometry_type_2 = PolygonCollection](((const PolygonCollection&amp;)((const PolygonCollection*)(&amp; p1))))&#39;</div>

<div>/xxx/Polygon.hpp:182: note: candidates are: PolygonCollection&amp; PolygonCollection::operator=(const PolygonCollection&amp;)</div><div><br></div><div>(You can notice that I have overloaded the operator= for my custom polygon set but I got the same error without the suggestion before my implementation)</div>

<div><br></div><div>Any ideas are welcomed!</div><div><br></div><div>Dimitris</div><meta http-equiv="content-type" content="text/html; charset=utf-8">