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POCGAL, Cropped voronoi diagram confined in a rectangle
 

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  1. POCGAL, Cropped voronoi diagram confined in a rectangle
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    <p>I'm using CGAL with Qt to draw Voronoi diagram. I used <code>CGAL::Voronoi_diagram_2&lt;DT,AT,AP&gt;</code>since I need the faces. This is the example code:</p> <pre><code>for(Face_iterator f = VD.faces_begin(); f != VD.faces_end(); f++) { Ccb_halfedge_circulator ec_start = (f)-&gt;ccb(); Ccb_halfedge_circulator ec = ec_start; do { if (!ec-&gt;has_source()) { } else QpolyF &lt;&lt; QPointF(((Halfedge_handle)ec)-&gt;source()-&gt;point().x(), ((Halfedge_handle)ec)-&gt;source()-&gt;point().y()); } while ( ++ec != ec_start ); VectPolygon.push_back(QpolyF); QpolyF.clear();} </code></pre> <p>I need to clip the rays that has source or target in infinity. If I use the Cropped_voronoi_from_delaunay to generate voronoi it only gives the segments not the faces. these are the typedefs:</p> <pre><code>typedef K::Line_2 Line_2; typedef CGAL::Delaunay_triangulation_2&lt;K&gt; Delaunay_triangulation_2; typedef Delaunay_triangulation_2::Face_iterator dt_Face_iterator; typedef Delaunay_triangulation_2::Edge_circulator dt_Edge_circulator; // typedefs for defining the adaptor typedef CGAL::Exact_predicates_inexact_constructions_kernel K; typedef CGAL::Delaunay_triangulation_2&lt;K&gt; DT; typedef CGAL::Delaunay_triangulation_adaptation_traits_2&lt;DT&gt; AT; typedef CGAL::Delaunay_triangulation_caching_degeneracy_removal_policy_2&lt;DT&gt; AP; typedef CGAL::Voronoi_diagram_2&lt;DT,AT,AP&gt; VD; // typedef for the result type of the point location typedef AT::Site_2 Site_2; typedef AT::Point_2 Point_2; typedef VD::Locate_result Locate_result; typedef VD::Vertex_handle Vertex_handle; typedef VD::Face_handle Face_handle; typedef VD::Face_iterator Face_iterator; typedef VD::Halfedge_handle Halfedge_handle; typedef VD::Ccb_halfedge_circulator Ccb_halfedge_circulator; </code></pre>
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    1. COWhy aren't you happy with the following example: http://www.cgal.org/Manual/latest/doc_html/cgal_manual/Triangulation_2/Chapter_main.html#Subsection_37.5.4 ?
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    2. COAs I said I need faces,but that example in CGAL only gives segments.
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    3. COThere is also the "2D Range and Neighbor Search" which comes pretty close, but I'm not sure whether it supports this query, even via passing a specific functor. http://www.cgal.org/Manual/latest/doc_html/cgal_manual/Point_set_2/Chapter_main.html
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