1<html> 2<head> 3<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> 4<title>closeable_view</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="../views.html" title="Views"> 9<link rel="prev" href="segment_view.html" title="segment_view"> 10<link rel="next" href="reversible_view.html" title="reversible_view"> 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="segment_view.html"><img src="../../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../views.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="reversible_view.html"><img src="../../../../../../../doc/src/images/next.png" alt="Next"></a> 24</div> 25<div class="section"> 26<div class="titlepage"><div><div><h4 class="title"> 27<a name="geometry.reference.views.closeable_view"></a><a class="link" href="closeable_view.html" title="closeable_view">closeable_view</a> 28</h4></div></div></div> 29<p> 30 <a class="indexterm" name="idm45635666513152"></a> 31View on a range, either closing it or leaving it as it is. 32 </p> 33<h6> 34<a name="geometry.reference.views.closeable_view.h0"></a> 35 <span class="phrase"><a name="geometry.reference.views.closeable_view.description"></a></span><a class="link" href="closeable_view.html#geometry.reference.views.closeable_view.description">Description</a> 36 </h6> 37<p> 38 The closeable_view is used internally by the library to handle all rings, 39 either closed or open, the same way. The default method is closed, all 40 algorithms process rings as if they are closed. Therefore, if they are 41 opened, a view is created which closes them. The closeable_view might be 42 used by library users, but its main purpose is internally. 43 </p> 44<h6> 45<a name="geometry.reference.views.closeable_view.h1"></a> 46 <span class="phrase"><a name="geometry.reference.views.closeable_view.synopsis"></a></span><a class="link" href="closeable_view.html#geometry.reference.views.closeable_view.synopsis">Synopsis</a> 47 </h6> 48<p> 49</p> 50<pre class="programlisting"><span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> <span class="identifier">Range</span><span class="special">,</span> <span class="identifier">closure_selector</span> <span class="identifier">Close</span><span class="special">></span> 51<span class="keyword">struct</span> <span class="identifier">closeable_view</span> 52<span class="special">{</span> 53 <span class="comment">// ...</span> 54<span class="special">};</span> 55</pre> 56<p> 57 </p> 58<h6> 59<a name="geometry.reference.views.closeable_view.h2"></a> 60 <span class="phrase"><a name="geometry.reference.views.closeable_view.template_parameter_s_"></a></span><a class="link" href="closeable_view.html#geometry.reference.views.closeable_view.template_parameter_s_">Template 61 parameter(s)</a> 62 </h6> 63<div class="informaltable"><table class="table"> 64<colgroup> 65<col> 66<col> 67</colgroup> 68<thead><tr> 69<th> 70 <p> 71 Parameter 72 </p> 73 </th> 74<th> 75 <p> 76 Description 77 </p> 78 </th> 79</tr></thead> 80<tbody> 81<tr> 82<td> 83 <p> 84 typename Range 85 </p> 86 </td> 87<td> 88 <p> 89 Original range 90 </p> 91 </td> 92</tr> 93<tr> 94<td> 95 <p> 96 closure_selector Close 97 </p> 98 </td> 99<td> 100 <p> 101 Specifies if it the range is closed, if so, nothing will happen. 102 If it is open, it will iterate the first point after the last 103 point. 104 </p> 105 </td> 106</tr> 107</tbody> 108</table></div> 109<h6> 110<a name="geometry.reference.views.closeable_view.h3"></a> 111 <span class="phrase"><a name="geometry.reference.views.closeable_view.header"></a></span><a class="link" href="closeable_view.html#geometry.reference.views.closeable_view.header">Header</a> 112 </h6> 113<p> 114 Either 115 </p> 116<p> 117 <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">hpp</span><span class="special">></span></code> 118 </p> 119<p> 120 Or 121 </p> 122<p> 123 <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">views</span><span class="special">/</span><span class="identifier">closeable_view</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span></code> 124 </p> 125</div> 126<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr> 127<td align="left"></td> 128<td align="right"><div class="copyright-footer">Copyright © 2009-2019 Barend Gehrels, Bruno Lalande, Mateusz Loskot, Adam 129 Wulkiewicz, Oracle and/or its affiliates<p> 130 Distributed under the Boost Software License, Version 1.0. (See accompanying 131 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>) 132 </p> 133</div></td> 134</tr></table> 135<hr> 136<div class="spirit-nav"> 137<a accesskey="p" href="segment_view.html"><img src="../../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../views.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="reversible_view.html"><img src="../../../../../../../doc/src/images/next.png" alt="Next"></a> 138</div> 139</body> 140</html> 141
