1<html> 2<head> 3<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> 4<title>strategy::area::cartesian</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="../strategies.html" title="Strategies"> 9<link rel="prev" href="../strategies.html" title="Strategies"> 10<link rel="next" href="strategy_area_spherical.html" title="strategy::area::spherical"> 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="../strategies.html"><img src="../../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../strategies.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="strategy_area_spherical.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.strategies.strategy_area_cartesian"></a><a class="link" href="strategy_area_cartesian.html" title="strategy::area::cartesian">strategy::area::cartesian</a> 28</h4></div></div></div> 29<p> 30 <a class="indexterm" name="idm45635671814240"></a><a class="indexterm" name="idm45635671813552"></a><a class="indexterm" name="idm45635671812864"></a> 31Cartesian area calculation. 32 </p> 33<h6> 34<a name="geometry.reference.strategies.strategy_area_cartesian.h0"></a> 35 <span class="phrase"><a name="geometry.reference.strategies.strategy_area_cartesian.description"></a></span><a class="link" href="strategy_area_cartesian.html#geometry.reference.strategies.strategy_area_cartesian.description">Description</a> 36 </h6> 37<p> 38 Calculates cartesian area using the trapezoidal rule 39 </p> 40<h6> 41<a name="geometry.reference.strategies.strategy_area_cartesian.h1"></a> 42 <span class="phrase"><a name="geometry.reference.strategies.strategy_area_cartesian.synopsis"></a></span><a class="link" href="strategy_area_cartesian.html#geometry.reference.strategies.strategy_area_cartesian.synopsis">Synopsis</a> 43 </h6> 44<p> 45</p> 46<pre class="programlisting"><span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> <span class="identifier">CalculationType</span><span class="special">></span> 47<span class="keyword">class</span> <span class="identifier">strategy</span><span class="special">::</span><span class="identifier">area</span><span class="special">::</span><span class="identifier">cartesian</span> 48<span class="special">{</span> 49 <span class="comment">// ...</span> 50<span class="special">};</span> 51</pre> 52<p> 53 </p> 54<h6> 55<a name="geometry.reference.strategies.strategy_area_cartesian.h2"></a> 56 <span class="phrase"><a name="geometry.reference.strategies.strategy_area_cartesian.template_parameter_s_"></a></span><a class="link" href="strategy_area_cartesian.html#geometry.reference.strategies.strategy_area_cartesian.template_parameter_s_">Template 57 parameter(s)</a> 58 </h6> 59<div class="informaltable"><table class="table"> 60<colgroup> 61<col> 62<col> 63<col> 64</colgroup> 65<thead><tr> 66<th> 67 <p> 68 Parameter 69 </p> 70 </th> 71<th> 72 <p> 73 Default 74 </p> 75 </th> 76<th> 77 <p> 78 Description 79 </p> 80 </th> 81</tr></thead> 82<tbody><tr> 83<td> 84 <p> 85 typename CalculationType 86 </p> 87 </td> 88<td> 89 <p> 90 void 91 </p> 92 </td> 93<td> 94 <p> 95 numeric type for calculation (e.g. high precision); if <span class="bold"><strong>void</strong></span> then it is extracted automatically 96 from the coordinate type and (if necessary) promoted to floating 97 point 98 </p> 99 </td> 100</tr></tbody> 101</table></div> 102<h6> 103<a name="geometry.reference.strategies.strategy_area_cartesian.h3"></a> 104 <span class="phrase"><a name="geometry.reference.strategies.strategy_area_cartesian.member_function_s_"></a></span><a class="link" href="strategy_area_cartesian.html#geometry.reference.strategies.strategy_area_cartesian.member_function_s_">Member 105 Function(s)</a> 106 </h6> 107<div class="informaltable"><table class="table"> 108<colgroup> 109<col> 110<col> 111<col> 112<col> 113</colgroup> 114<thead><tr> 115<th> 116 <p> 117 Function 118 </p> 119 </th> 120<th> 121 <p> 122 Description 123 </p> 124 </th> 125<th> 126 <p> 127 Parameters 128 </p> 129 </th> 130<th> 131 <p> 132 Returns 133 </p> 134 </th> 135</tr></thead> 136<tbody> 137<tr> 138<td> 139 <p> 140</p> 141<pre xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="table-programlisting"><span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> <span class="identifier">PointOfSegment</span><span class="special">,</span> <span class="keyword">typename</span> <span class="identifier">Geometry</span><span class="special">></span> 142<span class="keyword">void</span> <span class="identifier">apply</span><span class="special">(</span><span class="identifier">PointOfSegment</span> <span class="keyword">const</span> <span class="special">&</span> <span class="identifier">p1</span><span class="special">,</span> <span class="identifier">PointOfSegment</span> <span class="keyword">const</span> <span class="special">&</span> <span class="identifier">p2</span><span class="special">,</span> <span class="identifier">state</span><span class="special"><</span> <span class="identifier">Geometry</span> <span class="special">></span> <span class="special">&</span> <span class="identifier">st</span><span class="special">)</span></pre> 143<p> 144 </p> 145 </td> 146<td> 147 </td> 148<td> 149 <p> 150 <span class="bold"><strong>PointOfSegment const &</strong></span>: 151 <span class="emphasis"><em>p1</em></span>: 152 </p> 153 <p> 154 <span class="bold"><strong>PointOfSegment const &</strong></span>: 155 <span class="emphasis"><em>p2</em></span>: 156 </p> 157 <p> 158 <span class="bold"><strong>state< Geometry > &</strong></span>: 159 <span class="emphasis"><em>st</em></span>: 160 </p> 161 </td> 162<td> 163 </td> 164</tr> 165<tr> 166<td> 167 <p> 168</p> 169<pre xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="table-programlisting"><span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> <span class="identifier">Geometry</span><span class="special">></span> 170<span class="identifier">result_type</span><span class="special"><</span> <span class="identifier">Geometry</span> <span class="special">>::</span><span class="identifier">type</span> <span class="identifier">result</span><span class="special">(</span><span class="identifier">state</span><span class="special"><</span> <span class="identifier">Geometry</span> <span class="special">></span> <span class="special">&</span> <span class="identifier">st</span><span class="special">)</span></pre> 171<p> 172 </p> 173 </td> 174<td> 175 </td> 176<td> 177 <p> 178 <span class="bold"><strong>state< Geometry > &</strong></span>: 179 <span class="emphasis"><em>st</em></span>: 180 </p> 181 </td> 182<td> 183 </td> 184</tr> 185</tbody> 186</table></div> 187<h6> 188<a name="geometry.reference.strategies.strategy_area_cartesian.h4"></a> 189 <span class="phrase"><a name="geometry.reference.strategies.strategy_area_cartesian.header"></a></span><a class="link" href="strategy_area_cartesian.html#geometry.reference.strategies.strategy_area_cartesian.header">Header</a> 190 </h6> 191<p> 192 <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">strategies</span><span class="special">/</span><span class="identifier">cartesian</span><span class="special">/</span><span class="identifier">area</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span></code> 193 </p> 194<h6> 195<a name="geometry.reference.strategies.strategy_area_cartesian.h5"></a> 196 <span class="phrase"><a name="geometry.reference.strategies.strategy_area_cartesian.see_also"></a></span><a class="link" href="strategy_area_cartesian.html#geometry.reference.strategies.strategy_area_cartesian.see_also">See 197 also</a> 198 </h6> 199<p> 200 <a class="link" href="../algorithms/area/area_2_with_strategy.html" title="area (with strategy)">area 201 (with strategy)</a> 202 </p> 203</div> 204<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr> 205<td align="left"></td> 206<td align="right"><div class="copyright-footer">Copyright © 2009-2019 Barend Gehrels, Bruno Lalande, Mateusz Loskot, Adam 207 Wulkiewicz, Oracle and/or its affiliates<p> 208 Distributed under the Boost Software License, Version 1.0. (See accompanying 209 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>) 210 </p> 211</div></td> 212</tr></table> 213<hr> 214<div class="spirit-nav"> 215<a accesskey="p" href="../strategies.html"><img src="../../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../strategies.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="strategy_area_spherical.html"><img src="../../../../../../../doc/src/images/next.png" alt="Next"></a> 216</div> 217</body> 218</html> 219
