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| author | Anas Nashif <anas.nashif@intel.com> | 2012-10-30 12:57:26 -0700 |
|---|---|---|
| committer | Anas Nashif <anas.nashif@intel.com> | 2012-10-30 12:57:26 -0700 |
| commit | 1a78a62555be32868418fe52f8e330c9d0f95d5a (patch) | |
| tree | d3765a80e7d3b9640ec2e930743630cd6b9fce2b /libs/geometry/doc/html/geometry/reference/algorithms/sym_difference.html | |
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Imported Upstream version 1.49.0upstream/1.49.0
Diffstat (limited to 'libs/geometry/doc/html/geometry/reference/algorithms/sym_difference.html')
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diff --git a/libs/geometry/doc/html/geometry/reference/algorithms/sym_difference.html b/libs/geometry/doc/html/geometry/reference/algorithms/sym_difference.html new file mode 100755 index 0000000000..af8e51a99d --- /dev/null +++ b/libs/geometry/doc/html/geometry/reference/algorithms/sym_difference.html @@ -0,0 +1,377 @@ +<html> +<head> +<meta http-equiv="Content-Type" content="text/html; charset=US-ASCII"> +<title>sym_difference</title> +<link rel="stylesheet" href="../../../../../../../doc/src/boostbook.css" type="text/css"> +<meta name="generator" content="DocBook XSL Stylesheets V1.76.1"> +<link rel="home" href="../../../index.html" title="Chapter 1. Geometry"> +<link rel="up" href="../algorithms.html" title="Algorithms"> +<link rel="prev" href="simplify/simplify_3.html" title="simplify"> +<link rel="next" href="transform.html" title="transform"> +</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="simplify/simplify_3.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="transform.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.sym_difference"></a><a class="link" href="sym_difference.html" title="sym_difference">sym_difference</a> +</h4></div></div></div> +<p> + <a class="indexterm" name="id903442"></a> +Calculate the symmetric difference of two geometries. + </p> +<h6> +<a name="geometry.reference.algorithms.sym_difference.h0"></a> + <span><a name="geometry.reference.algorithms.sym_difference.description"></a></span><a class="link" href="sym_difference.html#geometry.reference.algorithms.sym_difference.description">Description</a> + </h6> +<p> + The free function symmetric difference calculates the spatial set theoretic + symmetric difference (XOR) of two geometries. + </p> +<h6> +<a name="geometry.reference.algorithms.sym_difference.h1"></a> + <span><a name="geometry.reference.algorithms.sym_difference.synopsis"></a></span><a class="link" href="sym_difference.html#geometry.reference.algorithms.sym_difference.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">Geometry1</span><span class="special">,</span> <span class="keyword">typename</span> <span class="identifier">Geometry2</span><span class="special">,</span> <span class="keyword">typename</span> <span class="identifier">Collection</span><span class="special">></span> +<span class="keyword">void</span> <span class="identifier">sym_difference</span><span class="special">(</span><span class="identifier">Geometry1</span> <span class="keyword">const</span> <span class="special">&</span> <span class="identifier">geometry1</span><span class="special">,</span> <span class="identifier">Geometry2</span> <span class="keyword">const</span> <span class="special">&</span> <span class="identifier">geometry2</span><span class="special">,</span> <span class="identifier">Collection</span> <span class="special">&</span> <span class="identifier">output_collection</span><span class="special">)</span></pre> +<p> + </p> +<h6> +<a name="geometry.reference.algorithms.sym_difference.h2"></a> + <span><a name="geometry.reference.algorithms.sym_difference.parameters"></a></span><a class="link" href="sym_difference.html#geometry.reference.algorithms.sym_difference.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> + Geometry1 const & + </p> + </td> +<td> + <p> + Any type fulfilling a Geometry Concept + </p> + </td> +<td> + <p> + geometry1 + </p> + </td> +<td> + <p> + A model of the specified concept + </p> + </td> +</tr> +<tr> +<td> + <p> + Geometry2 const & + </p> + </td> +<td> + <p> + Any type fulfilling a Geometry Concept + </p> + </td> +<td> + <p> + geometry2 + </p> + </td> +<td> + <p> + A model of the specified concept + </p> + </td> +</tr> +<tr> +<td> + <p> + Collection & + </p> + </td> +<td> + <p> + output collection, either a multi-geometry, or a std::vector<Geometry> + / std::deque<Geometry> etc + </p> + </td> +<td> + <p> + output_collection + </p> + </td> +<td> + <p> + the output collection + </p> + </td> +</tr> +</tbody> +</table></div> +<h6> +<a name="geometry.reference.algorithms.sym_difference.h3"></a> + <span><a name="geometry.reference.algorithms.sym_difference.header"></a></span><a class="link" href="sym_difference.html#geometry.reference.algorithms.sym_difference.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">sym_difference</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span></code> + </p> +<h6> +<a name="geometry.reference.algorithms.sym_difference.h4"></a> + <span><a name="geometry.reference.algorithms.sym_difference.conformance"></a></span><a class="link" href="sym_difference.html#geometry.reference.algorithms.sym_difference.conformance">Conformance</a> + </h6> +<p> + The function sym_difference implements function SymDifference from the + <a href="http://www.opengeospatial.org/standards/sfa" target="_top">OGC Simple Feature + Specification</a>. + </p> +<h6> +<a name="geometry.reference.algorithms.sym_difference.h5"></a> + <span><a name="geometry.reference.algorithms.sym_difference.behavior"></a></span><a class="link" href="sym_difference.html#geometry.reference.algorithms.sym_difference.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> + areal (e.g. polygon) + </p> + </td> +<td> + <p> + All combinations of: box, ring, polygon, multi_polygon + </p> + </td> +</tr> +<tr> +<td> + <p> + linear (e.g. linestring) / areal (e.g. polygon) + </p> + </td> +<td> + <p> + A combinations of a (multi) linestring with a (multi) polygon + results in a collection of linestrings + </p> + </td> +</tr> +<tr> +<td> + <p> + Other geometries + </p> + </td> +<td> + <p> + Not yet supported in this version + </p> + </td> +</tr> +<tr> +<td> + <p> + Spherical + </p> + </td> +<td> + <p> + Not yet supported in this version + </p> + </td> +</tr> +<tr> +<td> + <p> + Three dimensional + </p> + </td> +<td> + <p> + Not yet supported in this version + </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> + Check the <a class="link" href="../concepts/concept_polygon.html" title="Polygon Concept">Polygon + Concept</a> for the rules that polygon input for this algorithm should + fulfill + </p></td></tr> +</table></div> +<h6> +<a name="geometry.reference.algorithms.sym_difference.h6"></a> + <span><a name="geometry.reference.algorithms.sym_difference.example"></a></span><a class="link" href="sym_difference.html#geometry.reference.algorithms.sym_difference.example">Example</a> + </h6> +<p> + Shows how to calculate the symmetric difference (XOR) of two polygons + </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">point_xy</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">multi</span><span class="special">/</span><span class="identifier">geometries</span><span class="special">/</span><span class="identifier">multi_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">io</span><span class="special">/</span><span class="identifier">wkt</span><span class="special">/</span><span class="identifier">wkt</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">foreach</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">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">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">d2</span><span class="special">::</span><span class="identifier">point_xy</span><span class="special"><</span><span class="keyword">double</span><span class="special">></span> <span class="special">></span> <span class="identifier">polygon</span><span class="special">;</span> + + <span class="identifier">polygon</span> <span class="identifier">green</span><span class="special">,</span> <span class="identifier">blue</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">read_wkt</span><span class="special">(</span> + <span class="string">"POLYGON((2 1.3,2.4 1.7,2.8 1.8,3.4 1.2,3.7 1.6,3.4 2,4.1 3,5.3 2.6,5.4 1.2,4.9 0.8,2.9 0.7,2 1.3)"</span> + <span class="string">"(4.0 2.0, 4.2 1.4, 4.8 1.9, 4.4 2.2, 4.0 2.0))"</span><span class="special">,</span> <span class="identifier">green</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">read_wkt</span><span class="special">(</span> + <span class="string">"POLYGON((4.0 -0.5 , 3.5 1.0 , 2.0 1.5 , 3.5 2.0 , 4.0 3.5 , 4.5 2.0 , 6.0 1.5 , 4.5 1.0 , 4.0 -0.5))"</span><span class="special">,</span> <span class="identifier">blue</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">model</span><span class="special">::</span><span class="identifier">multi_polygon</span><span class="special"><</span><span class="identifier">polygon</span><span class="special">></span> <span class="identifier">multi</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">sym_difference</span><span class="special">(</span><span class="identifier">green</span><span class="special">,</span> <span class="identifier">blue</span><span class="special">,</span> <span class="identifier">multi</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="string">"green XOR blue:"</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="string">"total: "</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">multi</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="keyword">int</span> <span class="identifier">i</span> <span class="special">=</span> <span class="number">0</span><span class="special">;</span> + <span class="identifier">BOOST_FOREACH</span><span class="special">(</span><span class="identifier">polygon</span> <span class="keyword">const</span><span class="special">&</span> <span class="identifier">p</span><span class="special">,</span> <span class="identifier">multi</span><span class="special">)</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">i</span><span class="special">++</span> <span class="special"><<</span> <span class="string">": "</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">p</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="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">green XOR blue: +total: 3.1459 +0: 0.02375 +1: 0.542951 +2: 0.0149697 +3: 0.226855 +4: 0.839424 +5: 0.525154 +6: 0.015 +7: 0.181136 +8: 0.128798 +9: 0.340083 +10: 0.307778 + +<img src="../../../img/algorithms/sym_difference.png" alt="sym_difference"> + +</pre> +<h6> +<a name="geometry.reference.algorithms.sym_difference.h7"></a> + <span><a name="geometry.reference.algorithms.sym_difference.see_also"></a></span><a class="link" href="sym_difference.html#geometry.reference.algorithms.sym_difference.see_also">See also</a> + </h6> +<div class="itemizedlist"><ul class="itemizedlist" type="disc"> +<li class="listitem"> + <a class="link" href="difference.html" title="difference">difference</a> + </li> +<li class="listitem"> + <a class="link" href="intersection.html" title="intersection">intersection</a> + </li> +<li class="listitem"> + <a class="link" href="union_.html" title="union_">union</a> + </li> +</ul></div> +</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 © 2009-2012 Barend + Gehrels, Bruno Lalande, Mateusz Loskot<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="simplify/simplify_3.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="transform.html"><img src="../../../../../../../doc/src/images/next.png" alt="Next"></a> +</div> +</body> +</html> |