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diff --git a/libs/geometry/doc/html/geometry/reference/algorithms/reverse.html b/libs/geometry/doc/html/geometry/reference/algorithms/reverse.html new file mode 100644 index 000000000..dac3a7f1b --- /dev/null +++ b/libs/geometry/doc/html/geometry/reference/algorithms/reverse.html @@ -0,0 +1,357 @@ +<html> +<head> +<meta http-equiv="Content-Type" content="text/html; charset=US-ASCII"> +<title>reverse</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 1. Geometry"> +<link rel="up" href="../algorithms.html" title="Algorithms"> +<link rel="prev" href="perimeter/perimeter_2_with_strategy.html" title="perimeter (with strategy)"> +<link rel="next" href="simplify.html" title="simplify"> +</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="perimeter/perimeter_2_with_strategy.html"><img src="../../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../algorithms.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="simplify.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.algorithms.reverse"></a><a class="link" href="reverse.html" title="reverse">reverse</a> +</h4></div></div></div> +<p> + <a class="indexterm" name="idp12200752"></a> +Reverses the points within a geometry. + </p> +<h6> +<a name="geometry.reference.algorithms.reverse.h0"></a> + <span class="phrase"><a name="geometry.reference.algorithms.reverse.description"></a></span><a class="link" href="reverse.html#geometry.reference.algorithms.reverse.description">Description</a> + </h6> +<p> + Generic function to reverse a geometry. It resembles the std::reverse functionality, + but it takes the geometry type into account. Only for a ring or for a linestring + it is the same as the std::reverse. + </p> +<h6> +<a name="geometry.reference.algorithms.reverse.h1"></a> + <span class="phrase"><a name="geometry.reference.algorithms.reverse.synopsis"></a></span><a class="link" href="reverse.html#geometry.reference.algorithms.reverse.synopsis">Synopsis</a> + </h6> +<p> +</p> +<pre class="programlisting"><span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> <span class="identifier">Geometry</span><span class="special">></span> +<span class="keyword">void</span> <span class="identifier">reverse</span><span class="special">(</span><span class="identifier">Geometry</span> <span class="special">&</span> <span class="identifier">geometry</span><span class="special">)</span></pre> +<p> + </p> +<h6> +<a name="geometry.reference.algorithms.reverse.h2"></a> + <span class="phrase"><a name="geometry.reference.algorithms.reverse.parameters"></a></span><a class="link" href="reverse.html#geometry.reference.algorithms.reverse.parameters">Parameters</a> + </h6> +<div class="informaltable"><table class="table"> +<colgroup> +<col> +<col> +<col> +<col> +</colgroup> +<thead><tr> +<th> + <p> + Type + </p> + </th> +<th> + <p> + Concept + </p> + </th> +<th> + <p> + Name + </p> + </th> +<th> + <p> + Description + </p> + </th> +</tr></thead> +<tbody><tr> +<td> + <p> + Geometry & + </p> + </td> +<td> + <p> + Any type fulfilling a Geometry Concept + </p> + </td> +<td> + <p> + geometry + </p> + </td> +<td> + <p> + A model of the specified concept which will be reversed + </p> + </td> +</tr></tbody> +</table></div> +<h6> +<a name="geometry.reference.algorithms.reverse.h3"></a> + <span class="phrase"><a name="geometry.reference.algorithms.reverse.header"></a></span><a class="link" href="reverse.html#geometry.reference.algorithms.reverse.header">Header</a> + </h6> +<p> + Either + </p> +<p> + <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">geometry</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span></code> + </p> +<p> + Or + </p> +<p> + <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">algorithms</span><span class="special">/</span><span class="identifier">reverse</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span></code> + </p> +<h6> +<a name="geometry.reference.algorithms.reverse.h4"></a> + <span class="phrase"><a name="geometry.reference.algorithms.reverse.conformance"></a></span><a class="link" href="reverse.html#geometry.reference.algorithms.reverse.conformance">Conformance</a> + </h6> +<p> + The function reverse is not defined by OGC. + </p> +<p> + The function reverse conforms to the std::reverse function of the C++ std-library. + </p> +<h6> +<a name="geometry.reference.algorithms.reverse.h5"></a> + <span class="phrase"><a name="geometry.reference.algorithms.reverse.behavior"></a></span><a class="link" href="reverse.html#geometry.reference.algorithms.reverse.behavior">Behavior</a> + </h6> +<div class="informaltable"><table class="table"> +<colgroup> +<col> +<col> +</colgroup> +<thead><tr> +<th> + <p> + Case + </p> + </th> +<th> + <p> + Behavior + </p> + </th> +</tr></thead> +<tbody> +<tr> +<td> + <p> + Point + </p> + </td> +<td> + <p> + Nothing happens, geometry is unchanged + </p> + </td> +</tr> +<tr> +<td> + <p> + Segment + </p> + </td> +<td> + <p> + Not yet supported in this version + </p> + </td> +</tr> +<tr> +<td> + <p> + Box + </p> + </td> +<td> + <p> + Nothing happens, geometry is unchanged + </p> + </td> +</tr> +<tr> +<td> + <p> + Linestring + </p> + </td> +<td> + <p> + Reverses the Linestring + </p> + </td> +</tr> +<tr> +<td> + <p> + Ring + </p> + </td> +<td> + <p> + Reverses the Ring + </p> + </td> +</tr> +<tr> +<td> + <p> + Polygon + </p> + </td> +<td> + <p> + Reverses the exterior ring and all interior rings in the polygon + </p> + </td> +</tr> +<tr> +<td> + <p> + Multi Point + </p> + </td> +<td> + <p> + Nothing happens, geometry is unchanged + </p> + </td> +</tr> +<tr> +<td> + <p> + Multi Linestring + </p> + </td> +<td> + <p> + Reverses all contained linestrings individually + </p> + </td> +</tr> +<tr> +<td> + <p> + Multi Polygon + </p> + </td> +<td> + <p> + Reverses all contained polygons individually + </p> + </td> +</tr> +</tbody> +</table></div> +<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> + The reverse of a (multi)polygon or ring might make a valid geometry invalid + because the (counter)clockwise orientation reverses. + </p></td></tr> +</table></div> +<h6> +<a name="geometry.reference.algorithms.reverse.h6"></a> + <span class="phrase"><a name="geometry.reference.algorithms.reverse.complexity"></a></span><a class="link" href="reverse.html#geometry.reference.algorithms.reverse.complexity">Complexity</a> + </h6> +<p> + Linear + </p> +<h6> +<a name="geometry.reference.algorithms.reverse.h7"></a> + <span class="phrase"><a name="geometry.reference.algorithms.reverse.example"></a></span><a class="link" href="reverse.html#geometry.reference.algorithms.reverse.example">Example</a> + </h6> +<p> + Shows how to reverse a ring or polygon + </p> +<p> +</p> +<pre class="programlisting"><span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">iostream</span><span class="special">></span> + +<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> +<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">polygon</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span> +<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">ring</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span> +<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_tuple</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span> + +<span class="identifier">BOOST_GEOMETRY_REGISTER_BOOST_TUPLE_CS</span><span class="special">(</span><span class="identifier">cs</span><span class="special">::</span><span class="identifier">cartesian</span><span class="special">)</span> + +<span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">assign</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span> + +<span class="keyword">int</span> <span class="identifier">main</span><span class="special">()</span> +<span class="special">{</span> + <span class="keyword">using</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">assign</span><span class="special">::</span><span class="identifier">tuple_list_of</span><span class="special">;</span> + + <span class="keyword">typedef</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">tuple</span><span class="special"><</span><span class="keyword">int</span><span class="special">,</span> <span class="keyword">int</span><span class="special">></span> <span class="identifier">point</span><span class="special">;</span> + <span class="keyword">typedef</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">geometry</span><span class="special">::</span><span class="identifier">model</span><span class="special">::</span><span class="identifier">polygon</span><span class="special"><</span><span class="identifier">point</span><span class="special">></span> <span class="identifier">polygon</span><span class="special">;</span> + <span class="keyword">typedef</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">geometry</span><span class="special">::</span><span class="identifier">model</span><span class="special">::</span><span class="identifier">ring</span><span class="special"><</span><span class="identifier">point</span><span class="special">></span> <span class="identifier">ring</span><span class="special">;</span> + + + <span class="identifier">polygon</span> <span class="identifier">poly</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">exterior_ring</span><span class="special">(</span><span class="identifier">poly</span><span class="special">)</span> <span class="special">=</span> <span class="identifier">tuple_list_of</span><span class="special">(</span><span class="number">0</span><span class="special">,</span> <span class="number">0</span><span class="special">)(</span><span class="number">0</span><span class="special">,</span> <span class="number">9</span><span class="special">)(</span><span class="number">10</span><span class="special">,</span> <span class="number">10</span><span class="special">)(</span><span class="number">0</span><span class="special">,</span> <span class="number">0</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">interior_rings</span><span class="special">(</span><span class="identifier">poly</span><span class="special">).</span><span class="identifier">push_back</span><span class="special">(</span><span class="identifier">tuple_list_of</span><span class="special">(</span><span class="number">1</span><span class="special">,</span> <span class="number">2</span><span class="special">)(</span><span class="number">4</span><span class="special">,</span> <span class="number">6</span><span class="special">)(</span><span class="number">2</span><span class="special">,</span> <span class="number">8</span><span class="special">)(</span><span class="number">1</span><span class="special">,</span> <span class="number">2</span><span class="special">));</span> + + <span class="keyword">double</span> <span class="identifier">area_before</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">area</span><span class="special">(</span><span class="identifier">poly</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">reverse</span><span class="special">(</span><span class="identifier">poly</span><span class="special">);</span> + <span class="keyword">double</span> <span class="identifier">area_after</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">area</span><span class="special">(</span><span class="identifier">poly</span><span class="special">);</span> + <span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</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">dsv</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> + <span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="identifier">area_before</span> <span class="special"><<</span> <span class="string">" -> "</span> <span class="special"><<</span> <span class="identifier">area_after</span> <span class="special"><<</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span><span class="special">;</span> + + <span class="identifier">ring</span> <span class="identifier">r</span> <span class="special">=</span> <span class="identifier">tuple_list_of</span><span class="special">(</span><span class="number">0</span><span class="special">,</span> <span class="number">0</span><span class="special">)(</span><span class="number">0</span><span class="special">,</span> <span class="number">9</span><span class="special">)(</span><span class="number">8</span><span class="special">,</span> <span class="number">8</span><span class="special">)(</span><span class="number">0</span><span class="special">,</span> <span class="number">0</span><span class="special">);</span> + + <span class="identifier">area_before</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">area</span><span class="special">(</span><span class="identifier">r</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">reverse</span><span class="special">(</span><span class="identifier">r</span><span class="special">);</span> + <span class="identifier">area_after</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">area</span><span class="special">(</span><span class="identifier">r</span><span class="special">);</span> + <span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</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">dsv</span><span class="special">(</span><span class="identifier">r</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> + <span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="identifier">area_before</span> <span class="special"><<</span> <span class="string">" -> "</span> <span class="special"><<</span> <span class="identifier">area_after</span> <span class="special"><<</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span><span class="special">;</span> + + <span class="keyword">return</span> <span class="number">0</span><span class="special">;</span> +<span class="special">}</span> +</pre> +<p> + </p> +<p> + Output: + </p> +<pre class="programlisting">(((0, 0), (10, 10), (0, 9), (0, 0)), ((1, 2), (2, 8), (4, 6), (1, 2))) +38 -> -38 +((0, 0), (8, 8), (0, 9), (0, 0)) +36 -> -36 +</pre> +</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 © 2009-2013 Barend Gehrels, Bruno Lalande, Mateusz Loskot, Adam Wulkiewicz<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="perimeter/perimeter_2_with_strategy.html"><img src="../../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../algorithms.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="simplify.html"><img src="../../../../../../../doc/src/images/next.png" alt="Next"></a> +</div> +</body> +</html> |