blob: f96156c002afb1268106ab65f1f28707eb8e6a38 [file] [log] [blame]
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=US-ASCII">
<title>strategy::distance::pythagoras</title>
<link rel="stylesheet" href="../../../../../../../doc/src/boostbook.css" type="text/css">
<meta name="generator" content="DocBook XSL Stylesheets V1.78.1">
<link rel="home" href="../../../index.html" title="Chapter&#160;1.&#160;Geometry">
<link rel="up" href="../strategies.html" title="Strategies">
<link rel="prev" href="../strategies.html" title="Strategies">
<link rel="next" href="strategy_distance_pythagoras_box_box.html" title="strategy::distance::pythagoras_box_box">
</head>
<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
<table cellpadding="2" width="100%"><tr>
<td valign="top"><img alt="Boost C++ Libraries" width="277" height="86" src="../../../../../../../boost.png"></td>
<td align="center"><a href="../../../../../../../index.html">Home</a></td>
<td align="center"><a href="../../../../../../../libs/libraries.htm">Libraries</a></td>
<td align="center"><a href="http://www.boost.org/users/people.html">People</a></td>
<td align="center"><a href="http://www.boost.org/users/faq.html">FAQ</a></td>
<td align="center"><a href="../../../../../../../more/index.htm">More</a></td>
</tr></table>
<hr>
<div class="spirit-nav">
<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_distance_pythagoras_box_box.html"><img src="../../../../../../../doc/src/images/next.png" alt="Next"></a>
</div>
<div class="section">
<div class="titlepage"><div><div><h4 class="title">
<a name="geometry.reference.strategies.strategy_distance_pythagoras"></a><a class="link" href="strategy_distance_pythagoras.html" title="strategy::distance::pythagoras">strategy::distance::pythagoras</a>
</h4></div></div></div>
<p>
<a class="indexterm" name="idp130602896"></a><a class="indexterm" name="idp130603584"></a><a class="indexterm" name="idp130604272"></a>
Strategy to calculate the distance between two points.
</p>
<h6>
<a name="geometry.reference.strategies.strategy_distance_pythagoras.h0"></a>
<span class="phrase"><a name="geometry.reference.strategies.strategy_distance_pythagoras.synopsis"></a></span><a class="link" href="strategy_distance_pythagoras.html#geometry.reference.strategies.strategy_distance_pythagoras.synopsis">Synopsis</a>
</h6>
<p>
</p>
<pre class="programlisting"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> <span class="identifier">CalculationType</span><span class="special">&gt;</span>
<span class="keyword">class</span> <span class="identifier">strategy</span><span class="special">::</span><span class="identifier">distance</span><span class="special">::</span><span class="identifier">pythagoras</span>
<span class="special">{</span>
<span class="comment">// ...</span>
<span class="special">};</span>
</pre>
<p>
</p>
<h6>
<a name="geometry.reference.strategies.strategy_distance_pythagoras.h1"></a>
<span class="phrase"><a name="geometry.reference.strategies.strategy_distance_pythagoras.template_parameter_s_"></a></span><a class="link" href="strategy_distance_pythagoras.html#geometry.reference.strategies.strategy_distance_pythagoras.template_parameter_s_">Template
parameter(s)</a>
</h6>
<div class="informaltable"><table class="table">
<colgroup>
<col>
<col>
<col>
</colgroup>
<thead><tr>
<th>
<p>
Parameter
</p>
</th>
<th>
<p>
Default
</p>
</th>
<th>
<p>
Description
</p>
</th>
</tr></thead>
<tbody><tr>
<td>
<p>
typename CalculationType
</p>
</td>
<td>
<p>
void
</p>
</td>
<td>
<p>
numeric type for calculation (e.g. high precision); if <span class="bold"><strong>void</strong></span> then it is extracted automatically
from the coordinate type and (if necessary) promoted to floating
point
</p>
</td>
</tr></tbody>
</table></div>
<h6>
<a name="geometry.reference.strategies.strategy_distance_pythagoras.h2"></a>
<span class="phrase"><a name="geometry.reference.strategies.strategy_distance_pythagoras.member_function_s_"></a></span><a class="link" href="strategy_distance_pythagoras.html#geometry.reference.strategies.strategy_distance_pythagoras.member_function_s_">Member
Function(s)</a>
</h6>
<div class="informaltable"><table class="table">
<colgroup>
<col>
<col>
<col>
<col>
</colgroup>
<thead><tr>
<th>
<p>
Function
</p>
</th>
<th>
<p>
Description
</p>
</th>
<th>
<p>
Parameters
</p>
</th>
<th>
<p>
Returns
</p>
</th>
</tr></thead>
<tbody><tr>
<td>
<p>
</p>
<pre xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="table-programlisting"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> <span class="identifier">P1</span><span class="special">,</span> <span class="keyword">typename</span> <span class="identifier">P2</span><span class="special">&gt;</span>
<span class="identifier">calculation_type</span><span class="special">&lt;</span> <span class="identifier">P1</span><span class="special">,</span> <span class="identifier">P2</span> <span class="special">&gt;::</span><span class="identifier">type</span> <span class="identifier">apply</span><span class="special">(</span><span class="identifier">P1</span> <span class="keyword">const</span> <span class="special">&amp;</span> <span class="identifier">p1</span><span class="special">,</span> <span class="identifier">P2</span> <span class="keyword">const</span> <span class="special">&amp;</span> <span class="identifier">p2</span><span class="special">)</span></pre>
<p>
</p>
</td>
<td>
<p>
applies the distance calculation using pythagoras
</p>
</td>
<td>
<p>
<span class="bold"><strong>P1 const &amp;</strong></span>: <span class="emphasis"><em>p1</em></span>:
first point
</p>
<p>
<span class="bold"><strong>P2 const &amp;</strong></span>: <span class="emphasis"><em>p2</em></span>:
second point
</p>
</td>
<td>
<p>
the calculated distance (including taking the square root)
</p>
</td>
</tr></tbody>
</table></div>
<h6>
<a name="geometry.reference.strategies.strategy_distance_pythagoras.h3"></a>
<span class="phrase"><a name="geometry.reference.strategies.strategy_distance_pythagoras.header"></a></span><a class="link" href="strategy_distance_pythagoras.html#geometry.reference.strategies.strategy_distance_pythagoras.header">Header</a>
</h6>
<p>
<code class="computeroutput"><span class="preprocessor">#include</span> <span class="special">&lt;</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">distance_pythagoras</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span></code>
</p>
<h6>
<a name="geometry.reference.strategies.strategy_distance_pythagoras.h4"></a>
<span class="phrase"><a name="geometry.reference.strategies.strategy_distance_pythagoras.notes"></a></span><a class="link" href="strategy_distance_pythagoras.html#geometry.reference.strategies.strategy_distance_pythagoras.notes">Notes</a>
</h6>
<div class="note"><table border="0" summary="Note">
<tr>
<td rowspan="2" align="center" valign="top" width="25"><img alt="[Note]" src="../../../../../../../doc/src/images/note.png"></td>
<th align="left">Note</th>
</tr>
<tr><td align="left" valign="top"><p>
Can be used for points with two, three or more dimensions
</p></td></tr>
</table></div>
<h6>
<a name="geometry.reference.strategies.strategy_distance_pythagoras.h5"></a>
<span class="phrase"><a name="geometry.reference.strategies.strategy_distance_pythagoras.see_also"></a></span><a class="link" href="strategy_distance_pythagoras.html#geometry.reference.strategies.strategy_distance_pythagoras.see_also">See
also</a>
</h6>
<p>
<a class="link" href="../algorithms/distance/distance_3_with_strategy.html" title="distance (with strategy)">distance
(with strategy)</a>
</p>
</div>
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
<td align="left"></td>
<td align="right"><div class="copyright-footer">Copyright &#169; 2009-2015 Barend Gehrels, Bruno Lalande,
Mateusz Loskot, Adam Wulkiewicz, Oracle and/or its affiliates<p>
Distributed under the Boost Software License, Version 1.0. (See accompanying
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>)
</p>
</div></td>
</tr></table>
<hr>
<div class="spirit-nav">
<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_distance_pythagoras_box_box.html"><img src="../../../../../../../doc/src/images/next.png" alt="Next"></a>
</div>
</body>
</html>