1<html> 2<head> 3<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> 4<title>Boost.Polygon's polygon_data</title> 5<link rel="stylesheet" href="../../../../../../../../doc/src/boostbook.css" type="text/css"> 6<meta name="generator" content="DocBook XSL Stylesheets V1.79.1"> 7<link rel="home" href="../../../../index.html" title="Chapter 1. Geometry"> 8<link rel="up" href="../boost_polygon.html" title="Boost.Polygon"> 9<link rel="prev" href="rectangle_data.html" title="Boost.Polygon's rectangle_data"> 10<link rel="next" href="polygon_with_holes_data.html" title="Boost.Polygon's polygon_with_holes_data"> 11</head> 12<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"> 13<table cellpadding="2" width="100%"><tr> 14<td valign="top"><img alt="Boost C++ Libraries" width="277" height="86" src="../../../../../../../../boost.png"></td> 15<td align="center"><a href="../../../../../../../../index.html">Home</a></td> 16<td align="center"><a href="../../../../../../../../libs/libraries.htm">Libraries</a></td> 17<td align="center"><a href="http://www.boost.org/users/people.html">People</a></td> 18<td align="center"><a href="http://www.boost.org/users/faq.html">FAQ</a></td> 19<td align="center"><a href="../../../../../../../../more/index.htm">More</a></td> 20</tr></table> 21<hr> 22<div class="spirit-nav"> 23<a accesskey="p" href="rectangle_data.html"><img src="../../../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../boost_polygon.html"><img src="../../../../../../../../doc/src/images/up.png" alt="Up"></a><a accesskey="h" href="../../../../index.html"><img src="../../../../../../../../doc/src/images/home.png" alt="Home"></a><a accesskey="n" href="polygon_with_holes_data.html"><img src="../../../../../../../../doc/src/images/next.png" alt="Next"></a> 24</div> 25<div class="section"> 26<div class="titlepage"><div><div><h5 class="title"> 27<a name="geometry.reference.adapted.boost_polygon.polygon_data"></a><a class="link" href="polygon_data.html" title="Boost.Polygon's polygon_data">Boost.Polygon's 28 polygon_data</a> 29</h5></div></div></div> 30<p> 31 Boost.Polygon's polygon type (boost::polygon::polygon_data) is adapted 32 to the Boost.Geometry Ring Concept. 33 </p> 34<h6> 35<a name="geometry.reference.adapted.boost_polygon.polygon_data.h0"></a> 36 <span class="phrase"><a name="geometry.reference.adapted.boost_polygon.polygon_data.description"></a></span><a class="link" href="polygon_data.html#geometry.reference.adapted.boost_polygon.polygon_data.description">Description</a> 37 </h6> 38<p> 39 Boost.Polygon's points (as well as polygons) can be used by Boost.Geometry. 40 The two libraries can therefore be used together. Using a boost::polygon::polygon_data<...>, 41 algorithms from both Boost.Polygon and Boost.Geometry can be called. 42 </p> 43<h6> 44<a name="geometry.reference.adapted.boost_polygon.polygon_data.h1"></a> 45 <span class="phrase"><a name="geometry.reference.adapted.boost_polygon.polygon_data.model_of"></a></span><a class="link" href="polygon_data.html#geometry.reference.adapted.boost_polygon.polygon_data.model_of">Model 46 of</a> 47 </h6> 48<p> 49 <a class="link" href="../../concepts/concept_ring.html" title="Ring Concept">Ring Concept</a> 50 </p> 51<h6> 52<a name="geometry.reference.adapted.boost_polygon.polygon_data.h2"></a> 53 <span class="phrase"><a name="geometry.reference.adapted.boost_polygon.polygon_data.header"></a></span><a class="link" href="polygon_data.html#geometry.reference.adapted.boost_polygon.polygon_data.header">Header</a> 54 </h6> 55<p> 56 <code class="computeroutput"><span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">geometry</span><span class="special">/</span><span class="identifier">geometries</span><span class="special">/</span><span class="identifier">adapted</span><span class="special">/</span><span class="identifier">boost_polygon</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span></code> 57 </p> 58<p> 59 The standard header <code class="computeroutput"><span class="identifier">boost</span><span class="special">/</span><span class="identifier">geometry</span><span class="special">.</span><span class="identifier">hpp</span></code> 60 does not include this header. 61 </p> 62<h6> 63<a name="geometry.reference.adapted.boost_polygon.polygon_data.h3"></a> 64 <span class="phrase"><a name="geometry.reference.adapted.boost_polygon.polygon_data.example"></a></span><a class="link" href="polygon_data.html#geometry.reference.adapted.boost_polygon.polygon_data.example">Example</a> 65 </h6> 66<p> 67 Shows how to use Boost.Polygon polygon_data within Boost.Geometry 68 </p> 69<p> 70</p> 71<pre class="programlisting"><span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">iostream</span><span class="special">></span> 72<span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">geometry</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span> 73<span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">geometry</span><span class="special">/</span><span class="identifier">geometries</span><span class="special">/</span><span class="identifier">adapted</span><span class="special">/</span><span class="identifier">boost_polygon</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span> 74 75<span class="keyword">int</span> <span class="identifier">main</span><span class="special">()</span> 76<span class="special">{</span> 77 <span class="keyword">typedef</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">polygon</span><span class="special">::</span><span class="identifier">polygon_data</span><span class="special"><</span><span class="keyword">int</span><span class="special">></span> <span class="identifier">polygon</span><span class="special">;</span> 78 <span class="keyword">typedef</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">polygon</span><span class="special">::</span><span class="identifier">polygon_traits</span><span class="special"><</span><span class="identifier">polygon</span><span class="special">>::</span><span class="identifier">point_type</span> <span class="identifier">point</span><span class="special">;</span> 79 80 <span class="identifier">point</span> <span class="identifier">pts</span><span class="special">[</span><span class="number">5</span><span class="special">]</span> <span class="special">=</span> <span class="special">{</span> 81 <span class="identifier">boost</span><span class="special">::</span><span class="identifier">polygon</span><span class="special">::</span><span class="identifier">construct</span><span class="special"><</span><span class="identifier">point</span><span class="special">>(</span><span class="number">0</span><span class="special">,</span> <span class="number">0</span><span class="special">),</span> 82 <span class="identifier">boost</span><span class="special">::</span><span class="identifier">polygon</span><span class="special">::</span><span class="identifier">construct</span><span class="special"><</span><span class="identifier">point</span><span class="special">>(</span><span class="number">0</span><span class="special">,</span> <span class="number">10</span><span class="special">),</span> 83 <span class="identifier">boost</span><span class="special">::</span><span class="identifier">polygon</span><span class="special">::</span><span class="identifier">construct</span><span class="special"><</span><span class="identifier">point</span><span class="special">>(</span><span class="number">10</span><span class="special">,</span> <span class="number">10</span><span class="special">),</span> 84 <span class="identifier">boost</span><span class="special">::</span><span class="identifier">polygon</span><span class="special">::</span><span class="identifier">construct</span><span class="special"><</span><span class="identifier">point</span><span class="special">>(</span><span class="number">10</span><span class="special">,</span> <span class="number">0</span><span class="special">),</span> 85 <span class="identifier">boost</span><span class="special">::</span><span class="identifier">polygon</span><span class="special">::</span><span class="identifier">construct</span><span class="special"><</span><span class="identifier">point</span><span class="special">>(</span><span class="number">0</span><span class="special">,</span> <span class="number">0</span><span class="special">)</span> 86 <span class="special">};</span> 87 88 <span class="identifier">polygon</span> <span class="identifier">poly</span><span class="special">;</span> 89 <span class="identifier">boost</span><span class="special">::</span><span class="identifier">polygon</span><span class="special">::</span><span class="identifier">set_points</span><span class="special">(</span><span class="identifier">poly</span><span class="special">,</span> <span class="identifier">pts</span><span class="special">,</span> <span class="identifier">pts</span><span class="special">+</span><span class="number">5</span><span class="special">);</span> 90 91 <span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="string">"Area (using Boost.Geometry): "</span> 92 <span class="special"><<</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">geometry</span><span class="special">::</span><span class="identifier">area</span><span class="special">(</span><span class="identifier">poly</span><span class="special">)</span> <span class="special"><<</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span><span class="special">;</span> 93 <span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="string">"Area (using Boost.Polygon): "</span> 94 <span class="special"><<</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">polygon</span><span class="special">::</span><span class="identifier">area</span><span class="special">(</span><span class="identifier">poly</span><span class="special">)</span> <span class="special"><<</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span><span class="special">;</span> 95 96 <span class="keyword">return</span> <span class="number">0</span><span class="special">;</span> 97<span class="special">}</span> 98</pre> 99<p> 100 </p> 101<p> 102 Output: 103 </p> 104<pre class="programlisting">Area (using Boost.Geometry): 100 105Area (using Boost.Polygon): 100 106</pre> 107</div> 108<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr> 109<td align="left"></td> 110<td align="right"><div class="copyright-footer">Copyright © 2009-2019 Barend Gehrels, Bruno Lalande, Mateusz Loskot, Adam 111 Wulkiewicz, Oracle and/or its affiliates<p> 112 Distributed under the Boost Software License, Version 1.0. (See accompanying 113 file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>) 114 </p> 115</div></td> 116</tr></table> 117<hr> 118<div class="spirit-nav"> 119<a accesskey="p" href="rectangle_data.html"><img src="../../../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../boost_polygon.html"><img src="../../../../../../../../doc/src/images/up.png" alt="Up"></a><a accesskey="h" href="../../../../index.html"><img src="../../../../../../../../doc/src/images/home.png" alt="Home"></a><a accesskey="n" href="polygon_with_holes_data.html"><img src="../../../../../../../../doc/src/images/next.png" alt="Next"></a> 120</div> 121</body> 122</html> 123
