mirror of
https://github.com/boostorg/geometry.git
synced 2026-02-13 12:32:09 +00:00
620 lines
51 KiB
HTML
620 lines
51 KiB
HTML
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
|
||
<html>
|
||
<head>
|
||
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
|
||
<title>Boost.Geometry (aka GGL, Generic Geometry Library)</title>
|
||
<link href="doxygen.css" rel="stylesheet" type="text/css">
|
||
<link href="tabs.css" rel="stylesheet" type="text/css">
|
||
</head>
|
||
|
||
<table cellpadding="2" width="100%">
|
||
<tbody>
|
||
<tr>
|
||
<td valign="top">
|
||
<img alt="Boost.Geometry" src="images/ggl-logo-big.png" height="80" width="200">
|
||
|
||
</td>
|
||
<td valign="top" align="right">
|
||
<a href="http://www.boost.org">
|
||
<img alt="Boost C++ Libraries" src="images/accepted_by_boost.png" height="80" width="230" border="0">
|
||
</a>
|
||
</td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
<!-- Generated by Doxygen 1.5.9 -->
|
||
<div class="navigation" id="top">
|
||
<div class="tabs">
|
||
<ul>
|
||
<li><a href="index.html"><span>Main Page</span></a></li>
|
||
<li><a href="pages.html"><span>Related Pages</span></a></li>
|
||
<li><a href="modules.html"><span>Modules</span></a></li>
|
||
<li><a href="namespaces.html"><span>Namespaces</span></a></li>
|
||
<li><a href="annotated.html"><span>Classes</span></a></li>
|
||
<li class="current"><a href="files.html"><span>Files</span></a></li>
|
||
<li><a href="examples.html"><span>Examples</span></a></li>
|
||
</ul>
|
||
</div>
|
||
<div class="tabs">
|
||
<ul>
|
||
<li><a href="files.html"><span>File List</span></a></li>
|
||
<li><a href="globals.html"><span>File Members</span></a></li>
|
||
</ul>
|
||
</div>
|
||
<h1>boost/geometry/algorithms/sectionalize.hpp</h1><a href="algorithms_2sectionalize_8hpp.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">// Boost.Geometry (aka GGL, Generic Geometry Library)</span>
|
||
<a name="l00002"></a>00002 <span class="comment">//</span>
|
||
<a name="l00003"></a>00003 <span class="comment">// Copyright Barend Gehrels 2007-2009, Geodan, Amsterdam, the Netherlands.</span>
|
||
<a name="l00004"></a>00004 <span class="comment">// Copyright Bruno Lalande 2008, 2009</span>
|
||
<a name="l00005"></a>00005 <span class="comment">// Use, modification and distribution is subject to the Boost Software License,</span>
|
||
<a name="l00006"></a>00006 <span class="comment">// Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at</span>
|
||
<a name="l00007"></a>00007 <span class="comment">// http://www.boost.org/LICENSE_1_0.txt)</span>
|
||
<a name="l00008"></a>00008
|
||
<a name="l00009"></a>00009 <span class="preprocessor">#ifndef BOOST_GEOMETRY_ALGORITHMS_SECTIONALIZE_HPP</span>
|
||
<a name="l00010"></a>00010 <span class="preprocessor"></span><span class="preprocessor">#define BOOST_GEOMETRY_ALGORITHMS_SECTIONALIZE_HPP</span>
|
||
<a name="l00011"></a>00011 <span class="preprocessor"></span>
|
||
<a name="l00012"></a>00012 <span class="preprocessor">#include <cstddef></span>
|
||
<a name="l00013"></a>00013 <span class="preprocessor">#include <vector></span>
|
||
<a name="l00014"></a>00014
|
||
<a name="l00015"></a>00015 <span class="preprocessor">#include <boost/concept_check.hpp></span>
|
||
<a name="l00016"></a>00016
|
||
<a name="l00017"></a>00017 <span class="preprocessor">#include <boost/range/functions.hpp></span>
|
||
<a name="l00018"></a>00018 <span class="preprocessor">#include <boost/range/metafunctions.hpp></span>
|
||
<a name="l00019"></a>00019
|
||
<a name="l00020"></a>00020 <span class="preprocessor">#include <<a class="code" href="assign_8hpp.html">boost/geometry/algorithms/assign.hpp</a>></span>
|
||
<a name="l00021"></a>00021 <span class="preprocessor">#include <<a class="code" href="combine_8hpp.html">boost/geometry/algorithms/combine.hpp</a>></span>
|
||
<a name="l00022"></a>00022
|
||
<a name="l00023"></a>00023 <span class="preprocessor">#include <<a class="code" href="access_8hpp.html">boost/geometry/core/access.hpp</a>></span>
|
||
<a name="l00024"></a>00024 <span class="preprocessor">#include <<a class="code" href="exterior__ring_8hpp.html">boost/geometry/core/exterior_ring.hpp</a>></span>
|
||
<a name="l00025"></a>00025
|
||
<a name="l00026"></a>00026 <span class="preprocessor">#include <<a class="code" href="geometries_2concepts_2check_8hpp.html">boost/geometry/geometries/concepts/check.hpp</a>></span>
|
||
<a name="l00027"></a>00027
|
||
<a name="l00028"></a>00028
|
||
<a name="l00029"></a>00029 <span class="preprocessor">#include <<a class="code" href="math_8hpp.html">boost/geometry/util/math.hpp</a>></span>
|
||
<a name="l00030"></a>00030 <span class="preprocessor">#include <<a class="code" href="segment_8hpp.html">boost/geometry/geometries/segment.hpp</a>></span>
|
||
<a name="l00031"></a>00031
|
||
<a name="l00032"></a>00032
|
||
<a name="l00044"></a>00044 <span class="keyword">namespace </span>boost { <span class="keyword">namespace </span>geometry
|
||
<a name="l00045"></a>00045 {
|
||
<a name="l00046"></a>00046
|
||
<a name="l00047"></a>00047
|
||
<a name="l00059"></a>00059 <span class="keyword">template</span> <<span class="keyword">typename</span> Box, std::<span class="keywordtype">size_t</span> DimensionCount>
|
||
<a name="l00060"></a><a class="code" href="structboost_1_1geometry_1_1section.html">00060</a> <span class="keyword">struct </span><a class="code" href="structboost_1_1geometry_1_1section.html" title="Structure containing section information.">section</a>
|
||
<a name="l00061"></a>00061 {
|
||
<a name="l00062"></a><a class="code" href="structboost_1_1geometry_1_1section.html#f108ac0d53f757d11713b3ed175853e1">00062</a> <span class="keyword">typedef</span> Box <a class="code" href="structboost_1_1geometry_1_1section.html#f108ac0d53f757d11713b3ed175853e1">box_type</a>;
|
||
<a name="l00063"></a>00063
|
||
<a name="l00064"></a><a class="code" href="structboost_1_1geometry_1_1section.html#6599419b319ddbcdd7b227bbe28f1571">00064</a> <span class="keywordtype">int</span> <a class="code" href="structboost_1_1geometry_1_1section.html#6599419b319ddbcdd7b227bbe28f1571">id</a>;
|
||
<a name="l00065"></a><a class="code" href="structboost_1_1geometry_1_1section.html#0e0f083db580cfc0bf5beacf788d5d29">00065</a> <span class="keywordtype">int</span> <a class="code" href="structboost_1_1geometry_1_1section.html#0e0f083db580cfc0bf5beacf788d5d29">directions</a>[DimensionCount];
|
||
<a name="l00066"></a><a class="code" href="structboost_1_1geometry_1_1section.html#c79fa7ffa9d545892ed4e853e1940a5b">00066</a> <span class="keywordtype">int</span> <a class="code" href="structboost_1_1geometry_1_1section.html#c79fa7ffa9d545892ed4e853e1940a5b">ring_index</a>;
|
||
<a name="l00067"></a><a class="code" href="structboost_1_1geometry_1_1section.html#0b6b3d251b3ed56e90e57f65cb231c50">00067</a> <span class="keywordtype">int</span> <a class="code" href="structboost_1_1geometry_1_1section.html#0b6b3d251b3ed56e90e57f65cb231c50">multi_index</a>;
|
||
<a name="l00068"></a><a class="code" href="structboost_1_1geometry_1_1section.html#d5c8cfcb157a993fb536edc1b9e2234b">00068</a> Box <a class="code" href="structboost_1_1geometry_1_1section.html#d5c8cfcb157a993fb536edc1b9e2234b">bounding_box</a>;
|
||
<a name="l00069"></a>00069
|
||
<a name="l00070"></a><a class="code" href="structboost_1_1geometry_1_1section.html#6266ca05f2262b38dd2e26a1fe5db7ff">00070</a> <span class="keywordtype">int</span> <a class="code" href="structboost_1_1geometry_1_1section.html#6266ca05f2262b38dd2e26a1fe5db7ff">begin_index</a>;
|
||
<a name="l00071"></a><a class="code" href="structboost_1_1geometry_1_1section.html#7e2abbb346f2675204c6c3d0ee97bdcf">00071</a> <span class="keywordtype">int</span> <a class="code" href="structboost_1_1geometry_1_1section.html#7e2abbb346f2675204c6c3d0ee97bdcf">end_index</a>;
|
||
<a name="l00072"></a><a class="code" href="structboost_1_1geometry_1_1section.html#260d539a8c1ff423bed29949703ccc5b">00072</a> std::size_t <a class="code" href="structboost_1_1geometry_1_1section.html#260d539a8c1ff423bed29949703ccc5b">count</a>;
|
||
<a name="l00073"></a><a class="code" href="structboost_1_1geometry_1_1section.html#4c7079b7c630b7273f0875a1cc0cc357">00073</a> std::size_t <a class="code" href="structboost_1_1geometry_1_1section.html#4c7079b7c630b7273f0875a1cc0cc357">range_count</a>;
|
||
<a name="l00074"></a><a class="code" href="structboost_1_1geometry_1_1section.html#7f9db8dc6850aeaeed634657ef2a4505">00074</a> <span class="keywordtype">bool</span> <a class="code" href="structboost_1_1geometry_1_1section.html#7f9db8dc6850aeaeed634657ef2a4505">duplicate</a>;
|
||
<a name="l00075"></a><a class="code" href="structboost_1_1geometry_1_1section.html#87a88f65c98a50f741a45b5bbb29afe1">00075</a> <span class="keywordtype">int</span> <a class="code" href="structboost_1_1geometry_1_1section.html#87a88f65c98a50f741a45b5bbb29afe1">non_duplicate_index</a>;
|
||
<a name="l00076"></a>00076
|
||
<a name="l00077"></a>00077
|
||
<a name="l00078"></a><a class="code" href="structboost_1_1geometry_1_1section.html#8615bfe852bf1c829b9b5874c01e9d35">00078</a> <span class="keyword">inline</span> <a class="code" href="structboost_1_1geometry_1_1section.html#8615bfe852bf1c829b9b5874c01e9d35">section</a>()
|
||
<a name="l00079"></a>00079 : <a class="code" href="structboost_1_1geometry_1_1section.html#6599419b319ddbcdd7b227bbe28f1571">id</a>(-1)
|
||
<a name="l00080"></a>00080 , <a class="code" href="structboost_1_1geometry_1_1section.html#c79fa7ffa9d545892ed4e853e1940a5b">ring_index</a>(-99)
|
||
<a name="l00081"></a>00081 , <a class="code" href="structboost_1_1geometry_1_1section.html#0b6b3d251b3ed56e90e57f65cb231c50">multi_index</a>(-99)
|
||
<a name="l00082"></a>00082 , <a class="code" href="structboost_1_1geometry_1_1section.html#6266ca05f2262b38dd2e26a1fe5db7ff">begin_index</a>(-1)
|
||
<a name="l00083"></a>00083 , <a class="code" href="structboost_1_1geometry_1_1section.html#7e2abbb346f2675204c6c3d0ee97bdcf">end_index</a>(-1)
|
||
<a name="l00084"></a>00084 , <a class="code" href="structboost_1_1geometry_1_1section.html#260d539a8c1ff423bed29949703ccc5b">count</a>(0)
|
||
<a name="l00085"></a>00085 , <a class="code" href="structboost_1_1geometry_1_1section.html#4c7079b7c630b7273f0875a1cc0cc357">range_count</a>(0)
|
||
<a name="l00086"></a>00086 , <a class="code" href="structboost_1_1geometry_1_1section.html#7f9db8dc6850aeaeed634657ef2a4505">duplicate</a>(false)
|
||
<a name="l00087"></a>00087 , <a class="code" href="structboost_1_1geometry_1_1section.html#87a88f65c98a50f741a45b5bbb29afe1">non_duplicate_index</a>(-1)
|
||
<a name="l00088"></a>00088 {
|
||
<a name="l00089"></a>00089 <a class="code" href="group__access.html#g214bc5c2c841a98c58f4d1baca423f86" title="assign to a box inverse infinite">assign_inverse</a>(<a class="code" href="structboost_1_1geometry_1_1section.html#d5c8cfcb157a993fb536edc1b9e2234b">bounding_box</a>);
|
||
<a name="l00090"></a>00090 <span class="keywordflow">for</span> (<span class="keyword">register</span> std::size_t i = 0; i < DimensionCount; i++)
|
||
<a name="l00091"></a>00091 {
|
||
<a name="l00092"></a>00092 <a class="code" href="structboost_1_1geometry_1_1section.html#0e0f083db580cfc0bf5beacf788d5d29">directions</a>[i] = 0;
|
||
<a name="l00093"></a>00093 }
|
||
<a name="l00094"></a>00094 }
|
||
<a name="l00095"></a>00095 };
|
||
<a name="l00096"></a>00096
|
||
<a name="l00097"></a>00097
|
||
<a name="l00104"></a>00104 <span class="keyword">template</span> <<span class="keyword">typename</span> Box, std::<span class="keywordtype">size_t</span> DimensionCount>
|
||
<a name="l00105"></a><a class="code" href="structboost_1_1geometry_1_1sections.html">00105</a> <span class="keyword">struct </span><a class="code" href="structboost_1_1geometry_1_1sections.html" title="Structure containing a collection of sections.">sections</a> : std::vector<section<Box, DimensionCount> >
|
||
<a name="l00106"></a>00106 {
|
||
<a name="l00107"></a><a class="code" href="structboost_1_1geometry_1_1sections.html#b75cef526ac13c94ecf150df9121b311">00107</a> <span class="keyword">typedef</span> Box <a class="code" href="structboost_1_1geometry_1_1sections.html#b75cef526ac13c94ecf150df9121b311">box_type</a>;
|
||
<a name="l00108"></a><a class="code" href="structboost_1_1geometry_1_1sections.html#910bd87a9e9d6077b834a0b23ee53c45">00108</a> <span class="keyword">static</span> <span class="keyword">const</span> std::size_t <a class="code" href="structboost_1_1geometry_1_1sections.html#910bd87a9e9d6077b834a0b23ee53c45">value</a> = DimensionCount;
|
||
<a name="l00109"></a>00109 };
|
||
<a name="l00110"></a>00110
|
||
<a name="l00111"></a>00111
|
||
<a name="l00112"></a>00112 <span class="preprocessor">#ifndef DOXYGEN_NO_DETAIL</span>
|
||
<a name="l00113"></a>00113 <span class="preprocessor"></span><span class="keyword">namespace </span>detail { <span class="keyword">namespace </span><a class="code" href="group__sectionalize.html#g5f4d5b585d242d644a1b0b60c805b930" title="Split a geometry into monotonic sections.">sectionalize</a> {
|
||
<a name="l00114"></a>00114
|
||
<a name="l00115"></a>00115 <span class="keyword">template</span> <<span class="keyword">typename</span> Segment, std::<span class="keywordtype">size_t</span> Dimension, std::<span class="keywordtype">size_t</span> DimensionCount>
|
||
<a name="l00116"></a>00116 <span class="keyword">struct </span>get_direction_loop
|
||
<a name="l00117"></a>00117 {
|
||
<a name="l00118"></a>00118 <span class="keyword">typedef</span> <span class="keyword">typename</span> <a class="code" href="structboost_1_1geometry_1_1coordinate__type.html" title="Meta-function which defines coordinate type (int, float, double, etc) of any geometry...">coordinate_type<Segment>::type</a> <a class="code" href="structboost_1_1geometry_1_1coordinate__type.html" title="Meta-function which defines coordinate type (int, float, double, etc) of any geometry...">coordinate_type</a>;
|
||
<a name="l00119"></a>00119
|
||
<a name="l00120"></a>00120 <span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">void</span> apply(Segment <span class="keyword">const</span>& seg,
|
||
<a name="l00121"></a>00121 <span class="keywordtype">int</span> directions[DimensionCount])
|
||
<a name="l00122"></a>00122 {
|
||
<a name="l00123"></a>00123 <a class="code" href="structboost_1_1geometry_1_1coordinate__type.html" title="Meta-function which defines coordinate type (int, float, double, etc) of any geometry...">coordinate_type</a> <span class="keyword">const</span> diff =
|
||
<a name="l00124"></a>00124 geometry::get<1, Dimension>(seg) - geometry::get<0, Dimension>(seg);
|
||
<a name="l00125"></a>00125
|
||
<a name="l00126"></a>00126 directions[Dimension] = diff > 0 ? 1 : (diff < 0 ? -1 : 0);
|
||
<a name="l00127"></a>00127
|
||
<a name="l00128"></a>00128 get_direction_loop
|
||
<a name="l00129"></a>00129 <
|
||
<a name="l00130"></a>00130 Segment, Dimension + 1, DimensionCount
|
||
<a name="l00131"></a>00131 >::apply(seg, directions);
|
||
<a name="l00132"></a>00132 }
|
||
<a name="l00133"></a>00133 };
|
||
<a name="l00134"></a>00134
|
||
<a name="l00135"></a>00135 <span class="keyword">template</span> <<span class="keyword">typename</span> Segment, std::<span class="keywordtype">size_t</span> DimensionCount>
|
||
<a name="l00136"></a>00136 <span class="keyword">struct </span>get_direction_loop<Segment, DimensionCount, DimensionCount>
|
||
<a name="l00137"></a>00137 {
|
||
<a name="l00138"></a>00138 <span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">void</span> apply(Segment <span class="keyword">const</span>& seg,
|
||
<a name="l00139"></a>00139 <span class="keywordtype">int</span> directions[DimensionCount])
|
||
<a name="l00140"></a>00140 {
|
||
<a name="l00141"></a>00141 boost::ignore_unused_variable_warning(seg);
|
||
<a name="l00142"></a>00142 boost::ignore_unused_variable_warning(directions);
|
||
<a name="l00143"></a>00143 }
|
||
<a name="l00144"></a>00144 };
|
||
<a name="l00145"></a>00145
|
||
<a name="l00146"></a>00146 <span class="keyword">template</span> <<span class="keyword">typename</span> T, std::<span class="keywordtype">size_t</span> Dimension, std::<span class="keywordtype">size_t</span> DimensionCount>
|
||
<a name="l00147"></a>00147 <span class="keyword">struct </span>copy_loop
|
||
<a name="l00148"></a>00148 {
|
||
<a name="l00149"></a>00149 <span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">void</span> apply(<span class="keyword">const</span> T source[DimensionCount],
|
||
<a name="l00150"></a>00150 T target[DimensionCount])
|
||
<a name="l00151"></a>00151 {
|
||
<a name="l00152"></a>00152 target[Dimension] = source[Dimension];
|
||
<a name="l00153"></a>00153 copy_loop<T, Dimension + 1, DimensionCount>::apply(source, target);
|
||
<a name="l00154"></a>00154 }
|
||
<a name="l00155"></a>00155 };
|
||
<a name="l00156"></a>00156
|
||
<a name="l00157"></a>00157 <span class="keyword">template</span> <<span class="keyword">typename</span> T, std::<span class="keywordtype">size_t</span> DimensionCount>
|
||
<a name="l00158"></a>00158 <span class="keyword">struct </span>copy_loop<T, DimensionCount, DimensionCount>
|
||
<a name="l00159"></a>00159 {
|
||
<a name="l00160"></a>00160 <span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">void</span> apply(<span class="keyword">const</span> T source[DimensionCount],
|
||
<a name="l00161"></a>00161 T target[DimensionCount])
|
||
<a name="l00162"></a>00162 {
|
||
<a name="l00163"></a>00163 boost::ignore_unused_variable_warning(source);
|
||
<a name="l00164"></a>00164 boost::ignore_unused_variable_warning(target);
|
||
<a name="l00165"></a>00165 }
|
||
<a name="l00166"></a>00166 };
|
||
<a name="l00167"></a>00167
|
||
<a name="l00168"></a>00168 <span class="keyword">template</span> <<span class="keyword">typename</span> T, std::<span class="keywordtype">size_t</span> Dimension, std::<span class="keywordtype">size_t</span> DimensionCount>
|
||
<a name="l00169"></a>00169 <span class="keyword">struct </span>compare_loop
|
||
<a name="l00170"></a>00170 {
|
||
<a name="l00171"></a>00171 <span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">bool</span> apply(<span class="keyword">const</span> T source[DimensionCount],
|
||
<a name="l00172"></a>00172 <span class="keyword">const</span> T target[DimensionCount])
|
||
<a name="l00173"></a>00173 {
|
||
<a name="l00174"></a>00174 <span class="keywordtype">bool</span> <span class="keyword">const</span> not_equal = target[Dimension] != source[Dimension];
|
||
<a name="l00175"></a>00175
|
||
<a name="l00176"></a>00176 <span class="keywordflow">return</span> not_equal
|
||
<a name="l00177"></a>00177 ? <span class="keyword">false</span>
|
||
<a name="l00178"></a>00178 : compare_loop
|
||
<a name="l00179"></a>00179 <
|
||
<a name="l00180"></a>00180 T, Dimension + 1, DimensionCount
|
||
<a name="l00181"></a>00181 >::apply(source, target);
|
||
<a name="l00182"></a>00182 }
|
||
<a name="l00183"></a>00183 };
|
||
<a name="l00184"></a>00184
|
||
<a name="l00185"></a>00185 <span class="keyword">template</span> <<span class="keyword">typename</span> T, std::<span class="keywordtype">size_t</span> DimensionCount>
|
||
<a name="l00186"></a>00186 <span class="keyword">struct </span>compare_loop<T, DimensionCount, DimensionCount>
|
||
<a name="l00187"></a>00187 {
|
||
<a name="l00188"></a>00188 <span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">bool</span> apply(<span class="keyword">const</span> T source[DimensionCount],
|
||
<a name="l00189"></a>00189 <span class="keyword">const</span> T target[DimensionCount])
|
||
<a name="l00190"></a>00190 {
|
||
<a name="l00191"></a>00191 boost::ignore_unused_variable_warning(source);
|
||
<a name="l00192"></a>00192 boost::ignore_unused_variable_warning(target);
|
||
<a name="l00193"></a>00193
|
||
<a name="l00194"></a>00194 <span class="keywordflow">return</span> <span class="keyword">true</span>;
|
||
<a name="l00195"></a>00195 }
|
||
<a name="l00196"></a>00196 };
|
||
<a name="l00197"></a>00197
|
||
<a name="l00198"></a>00198
|
||
<a name="l00199"></a>00199 <span class="keyword">template</span> <<span class="keyword">typename</span> Segment, std::<span class="keywordtype">size_t</span> Dimension, std::<span class="keywordtype">size_t</span> DimensionCount>
|
||
<a name="l00200"></a>00200 <span class="keyword">struct </span>check_duplicate_loop
|
||
<a name="l00201"></a>00201 {
|
||
<a name="l00202"></a>00202 <span class="keyword">typedef</span> <span class="keyword">typename</span> <a class="code" href="structboost_1_1geometry_1_1coordinate__type.html" title="Meta-function which defines coordinate type (int, float, double, etc) of any geometry...">coordinate_type<Segment>::type</a> <a class="code" href="structboost_1_1geometry_1_1coordinate__type.html" title="Meta-function which defines coordinate type (int, float, double, etc) of any geometry...">coordinate_type</a>;
|
||
<a name="l00203"></a>00203
|
||
<a name="l00204"></a>00204 <span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">bool</span> apply(Segment <span class="keyword">const</span>& seg)
|
||
<a name="l00205"></a>00205 {
|
||
<a name="l00206"></a>00206 <a class="code" href="structboost_1_1geometry_1_1coordinate__type.html" title="Meta-function which defines coordinate type (int, float, double, etc) of any geometry...">coordinate_type</a> <span class="keyword">const</span> diff =
|
||
<a name="l00207"></a>00207 geometry::get<1, Dimension>(seg) - geometry::get<0, Dimension>(seg);
|
||
<a name="l00208"></a>00208
|
||
<a name="l00209"></a>00209 <span class="keywordflow">if</span> (! <a class="code" href="group__utility.html#g8d2104edb28c2cecaa93e0a7e6308b77" title="returns true if both arguments are equal.">geometry::math::equals</a>(diff, 0))
|
||
<a name="l00210"></a>00210 {
|
||
<a name="l00211"></a>00211 <span class="keywordflow">return</span> <span class="keyword">false</span>;
|
||
<a name="l00212"></a>00212 }
|
||
<a name="l00213"></a>00213
|
||
<a name="l00214"></a>00214 <span class="keywordflow">return</span> check_duplicate_loop
|
||
<a name="l00215"></a>00215 <
|
||
<a name="l00216"></a>00216 Segment, Dimension + 1, DimensionCount
|
||
<a name="l00217"></a>00217 >::apply(seg);
|
||
<a name="l00218"></a>00218 }
|
||
<a name="l00219"></a>00219 };
|
||
<a name="l00220"></a>00220
|
||
<a name="l00221"></a>00221 <span class="keyword">template</span> <<span class="keyword">typename</span> Segment, std::<span class="keywordtype">size_t</span> DimensionCount>
|
||
<a name="l00222"></a>00222 <span class="keyword">struct </span>check_duplicate_loop<Segment, DimensionCount, DimensionCount>
|
||
<a name="l00223"></a>00223 {
|
||
<a name="l00224"></a>00224 <span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">bool</span> apply(Segment <span class="keyword">const</span>&)
|
||
<a name="l00225"></a>00225 {
|
||
<a name="l00226"></a>00226 <span class="keywordflow">return</span> <span class="keyword">true</span>;
|
||
<a name="l00227"></a>00227 }
|
||
<a name="l00228"></a>00228 };
|
||
<a name="l00229"></a>00229
|
||
<a name="l00230"></a>00230 <span class="keyword">template</span> <<span class="keyword">typename</span> T, std::<span class="keywordtype">size_t</span> Dimension, std::<span class="keywordtype">size_t</span> DimensionCount>
|
||
<a name="l00231"></a>00231 <span class="keyword">struct </span>assign_loop
|
||
<a name="l00232"></a>00232 {
|
||
<a name="l00233"></a>00233 <span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">void</span> apply(T dims[DimensionCount], <span class="keywordtype">int</span> <span class="keyword">const</span> value)
|
||
<a name="l00234"></a>00234 {
|
||
<a name="l00235"></a>00235 dims[Dimension] = value;
|
||
<a name="l00236"></a>00236 assign_loop<T, Dimension + 1, DimensionCount>::apply(dims, value);
|
||
<a name="l00237"></a>00237 }
|
||
<a name="l00238"></a>00238 };
|
||
<a name="l00239"></a>00239
|
||
<a name="l00240"></a>00240 <span class="keyword">template</span> <<span class="keyword">typename</span> T, std::<span class="keywordtype">size_t</span> DimensionCount>
|
||
<a name="l00241"></a>00241 <span class="keyword">struct </span>assign_loop<T, DimensionCount, DimensionCount>
|
||
<a name="l00242"></a>00242 {
|
||
<a name="l00243"></a>00243 <span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">void</span> apply(T dims[DimensionCount], <span class="keywordtype">int</span> <span class="keyword">const</span>)
|
||
<a name="l00244"></a>00244 {
|
||
<a name="l00245"></a>00245 boost::ignore_unused_variable_warning(dims);
|
||
<a name="l00246"></a>00246 }
|
||
<a name="l00247"></a>00247 };
|
||
<a name="l00248"></a>00248
|
||
<a name="l00249"></a>00249
|
||
<a name="l00250"></a>00250 <span class="keyword">template</span>
|
||
<a name="l00251"></a>00251 <
|
||
<a name="l00252"></a>00252 <span class="keyword">typename</span> Range,
|
||
<a name="l00253"></a>00253 <span class="keyword">typename</span> Point,
|
||
<a name="l00254"></a>00254 <span class="keyword">typename</span> Sections,
|
||
<a name="l00255"></a>00255 std::size_t DimensionCount,
|
||
<a name="l00256"></a>00256 std::size_t MaxCount
|
||
<a name="l00257"></a>00257 >
|
||
<a name="l00258"></a>00258 <span class="keyword">struct </span>sectionalize_range
|
||
<a name="l00259"></a>00259 {
|
||
<a name="l00260"></a>00260 <span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">void</span> apply(Range <span class="keyword">const</span>& range, Sections& <a class="code" href="structboost_1_1geometry_1_1sections.html" title="Structure containing a collection of sections.">sections</a>,
|
||
<a name="l00261"></a>00261 <span class="keywordtype">int</span> ring_index = -1, <span class="keywordtype">int</span> multi_index = -1)
|
||
<a name="l00262"></a>00262 {
|
||
<a name="l00263"></a>00263 <span class="keyword">typedef</span> <a class="code" href="classboost_1_1geometry_1_1segment.html" title="Class segment: small class containing two (templatized) point references.">segment<const Point></a> segment_type;
|
||
<a name="l00264"></a>00264
|
||
<a name="l00265"></a>00265 std::size_t <span class="keyword">const</span> n = boost::size(range);
|
||
<a name="l00266"></a>00266 <span class="keywordflow">if</span> (n == 0)
|
||
<a name="l00267"></a>00267 {
|
||
<a name="l00268"></a>00268 <span class="comment">// Zero points, no section</span>
|
||
<a name="l00269"></a>00269 <span class="keywordflow">return</span>;
|
||
<a name="l00270"></a>00270 }
|
||
<a name="l00271"></a>00271
|
||
<a name="l00272"></a>00272 <span class="keywordflow">if</span> (n == 1)
|
||
<a name="l00273"></a>00273 {
|
||
<a name="l00274"></a>00274 <span class="comment">// Line with one point ==> no sections</span>
|
||
<a name="l00275"></a>00275 <span class="keywordflow">return</span>;
|
||
<a name="l00276"></a>00276 }
|
||
<a name="l00277"></a>00277
|
||
<a name="l00278"></a>00278 <span class="keywordtype">int</span> i = 0;
|
||
<a name="l00279"></a>00279 <span class="keywordtype">int</span> ndi = 0; <span class="comment">// non duplicate index</span>
|
||
<a name="l00280"></a>00280
|
||
<a name="l00281"></a>00281 <span class="keyword">typedef</span> <span class="keyword">typename</span> boost::range_value<Sections>::type sections_range_type;
|
||
<a name="l00282"></a>00282 sections_range_type <a class="code" href="structboost_1_1geometry_1_1section.html" title="Structure containing section information.">section</a>;
|
||
<a name="l00283"></a>00283
|
||
<a name="l00284"></a>00284 <span class="keyword">typedef</span> <span class="keyword">typename</span> boost::range_const_iterator<Range>::type iterator_type;
|
||
<a name="l00285"></a>00285 iterator_type it = boost::begin(range);
|
||
<a name="l00286"></a>00286
|
||
<a name="l00287"></a>00287 <span class="keywordflow">for</span>(iterator_type previous = it++;
|
||
<a name="l00288"></a>00288 it != boost::end(range);
|
||
<a name="l00289"></a>00289 previous = it++, i++)
|
||
<a name="l00290"></a>00290 {
|
||
<a name="l00291"></a>00291 segment_type s(*previous, *it);
|
||
<a name="l00292"></a>00292
|
||
<a name="l00293"></a>00293 <span class="keywordtype">int</span> direction_classes[DimensionCount] = {0};
|
||
<a name="l00294"></a>00294 get_direction_loop
|
||
<a name="l00295"></a>00295 <
|
||
<a name="l00296"></a>00296 segment_type, 0, DimensionCount
|
||
<a name="l00297"></a>00297 >::apply(s, direction_classes);
|
||
<a name="l00298"></a>00298
|
||
<a name="l00299"></a>00299 <span class="comment">// if "dir" == 0 for all point-dimensions, it is duplicate.</span>
|
||
<a name="l00300"></a>00300 <span class="comment">// Those sections might be omitted, if wished, lateron</span>
|
||
<a name="l00301"></a>00301 <span class="keywordtype">bool</span> check_duplicate = <span class="keyword">true</span>; <span class="comment">//?</span>
|
||
<a name="l00302"></a>00302 <span class="keywordtype">bool</span> duplicate = <span class="keyword">false</span>;
|
||
<a name="l00303"></a>00303
|
||
<a name="l00304"></a>00304 <span class="keywordflow">if</span> (check_duplicate && direction_classes[0] == 0)
|
||
<a name="l00305"></a>00305 {
|
||
<a name="l00306"></a>00306 <span class="comment">// Recheck because all dimensions should be checked,</span>
|
||
<a name="l00307"></a>00307 <span class="comment">// not only first one,</span>
|
||
<a name="l00308"></a>00308 <span class="comment">// Note that DimensionCount might be < dimension<P>::value</span>
|
||
<a name="l00309"></a>00309 <span class="keywordflow">if</span> (check_duplicate_loop
|
||
<a name="l00310"></a>00310 <
|
||
<a name="l00311"></a>00311 segment_type, 0, <a class="code" href="structboost_1_1geometry_1_1dimension.html" title="Meta-function which defines coordinate dimensions, i.e. the number of axes of any...">geometry::dimension<Point>::type::value</a>
|
||
<a name="l00312"></a>00312 >::apply(s)
|
||
<a name="l00313"></a>00313 )
|
||
<a name="l00314"></a>00314 {
|
||
<a name="l00315"></a>00315 duplicate = <span class="keyword">true</span>;
|
||
<a name="l00316"></a>00316
|
||
<a name="l00317"></a>00317 <span class="comment">// Change direction-info to force new section</span>
|
||
<a name="l00318"></a>00318 <span class="comment">// Note that wo consecutive duplicate segments will generate</span>
|
||
<a name="l00319"></a>00319 <span class="comment">// only one duplicate-section.</span>
|
||
<a name="l00320"></a>00320 <span class="comment">// Actual value is not important as long as it is not -1,0,1</span>
|
||
<a name="l00321"></a>00321 assign_loop
|
||
<a name="l00322"></a>00322 <
|
||
<a name="l00323"></a>00323 int, 0, DimensionCount
|
||
<a name="l00324"></a>00324 >::apply(direction_classes, -99);
|
||
<a name="l00325"></a>00325 }
|
||
<a name="l00326"></a>00326 }
|
||
<a name="l00327"></a>00327
|
||
<a name="l00328"></a>00328 <span class="keywordflow">if</span> (section.count > 0
|
||
<a name="l00329"></a>00329 && (!compare_loop
|
||
<a name="l00330"></a>00330 <
|
||
<a name="l00331"></a>00331 <span class="keywordtype">int</span>, 0, DimensionCount
|
||
<a name="l00332"></a>00332 >::apply(direction_classes, section.directions)
|
||
<a name="l00333"></a>00333 || section.count > MaxCount
|
||
<a name="l00334"></a>00334 )
|
||
<a name="l00335"></a>00335 )
|
||
<a name="l00336"></a>00336 {
|
||
<a name="l00337"></a>00337 sections.push_back(section);
|
||
<a name="l00338"></a>00338 section = sections_range_type();
|
||
<a name="l00339"></a>00339 }
|
||
<a name="l00340"></a>00340
|
||
<a name="l00341"></a>00341 <span class="keywordflow">if</span> (section.count == 0)
|
||
<a name="l00342"></a>00342 {
|
||
<a name="l00343"></a>00343 section.begin_index = i;
|
||
<a name="l00344"></a>00344 section.ring_index = ring_index;
|
||
<a name="l00345"></a>00345 section.multi_index = multi_index;
|
||
<a name="l00346"></a>00346 section.duplicate = duplicate;
|
||
<a name="l00347"></a>00347 section.non_duplicate_index = ndi;
|
||
<a name="l00348"></a>00348 section.range_count = boost::size(range);
|
||
<a name="l00349"></a>00349
|
||
<a name="l00350"></a>00350 copy_loop
|
||
<a name="l00351"></a>00351 <
|
||
<a name="l00352"></a>00352 int, 0, DimensionCount
|
||
<a name="l00353"></a>00353 >::apply(direction_classes, section.directions);
|
||
<a name="l00354"></a>00354 <a class="code" href="group__combine.html#g7757b2934a94453246217e5d95a78a07" title="Combines a box with another geometry (box, point).">geometry::combine</a>(section.bounding_box, *previous);
|
||
<a name="l00355"></a>00355 }
|
||
<a name="l00356"></a>00356
|
||
<a name="l00357"></a>00357 <a class="code" href="group__combine.html#g7757b2934a94453246217e5d95a78a07" title="Combines a box with another geometry (box, point).">geometry::combine</a>(section.bounding_box, *it);
|
||
<a name="l00358"></a>00358 section.end_index = i + 1;
|
||
<a name="l00359"></a>00359 section.count++;
|
||
<a name="l00360"></a>00360 <span class="keywordflow">if</span> (! duplicate)
|
||
<a name="l00361"></a>00361 {
|
||
<a name="l00362"></a>00362 ndi++;
|
||
<a name="l00363"></a>00363 }
|
||
<a name="l00364"></a>00364 }
|
||
<a name="l00365"></a>00365
|
||
<a name="l00366"></a>00366 <span class="keywordflow">if</span> (section.count > 0)
|
||
<a name="l00367"></a>00367 {
|
||
<a name="l00368"></a>00368 sections.push_back(section);
|
||
<a name="l00369"></a>00369 }
|
||
<a name="l00370"></a>00370 }
|
||
<a name="l00371"></a>00371 };
|
||
<a name="l00372"></a>00372
|
||
<a name="l00373"></a>00373 <span class="keyword">template</span>
|
||
<a name="l00374"></a>00374 <
|
||
<a name="l00375"></a>00375 <span class="keyword">typename</span> Polygon,
|
||
<a name="l00376"></a>00376 <span class="keyword">typename</span> Sections,
|
||
<a name="l00377"></a>00377 std::size_t DimensionCount,
|
||
<a name="l00378"></a>00378 std::size_t MaxCount
|
||
<a name="l00379"></a>00379 >
|
||
<a name="l00380"></a>00380 <span class="keyword">struct </span>sectionalize_polygon
|
||
<a name="l00381"></a>00381 {
|
||
<a name="l00382"></a>00382 <span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">void</span> apply(Polygon <span class="keyword">const</span>& poly, Sections& <a class="code" href="structboost_1_1geometry_1_1sections.html" title="Structure containing a collection of sections.">sections</a>,
|
||
<a name="l00383"></a>00383 <span class="keywordtype">int</span> multi_index = -1)
|
||
<a name="l00384"></a>00384 {
|
||
<a name="l00385"></a>00385 <span class="keyword">typedef</span> <span class="keyword">typename</span> <a class="code" href="structboost_1_1geometry_1_1point__type.html" title="Meta-function which defines point type of any geometry.">point_type<Polygon>::type</a> <a class="code" href="structboost_1_1geometry_1_1point__type.html" title="Meta-function which defines point type of any geometry.">point_type</a>;
|
||
<a name="l00386"></a>00386 <span class="keyword">typedef</span> <span class="keyword">typename</span> <a class="code" href="structboost_1_1geometry_1_1ring__type.html" title="Meta-function which defines ring type of (multi)polygon geometry.">ring_type<Polygon>::type</a> <a class="code" href="structboost_1_1geometry_1_1ring__type.html" title="Meta-function which defines ring type of (multi)polygon geometry.">ring_type</a>;
|
||
<a name="l00387"></a>00387 <span class="keyword">typedef</span> sectionalize_range
|
||
<a name="l00388"></a>00388 <
|
||
<a name="l00389"></a>00389 ring_type, point_type, Sections, DimensionCount, MaxCount
|
||
<a name="l00390"></a>00390 > sectionalizer_type;
|
||
<a name="l00391"></a>00391
|
||
<a name="l00392"></a>00392 <span class="keyword">typedef</span> <span class="keyword">typename</span> boost::range_const_iterator
|
||
<a name="l00393"></a>00393 <
|
||
<a name="l00394"></a>00394 <span class="keyword">typename</span> <a class="code" href="structboost_1_1geometry_1_1interior__type.html" title="Meta-function defining container type of inner rings of (multi)polygon geometriy...">interior_type<Polygon>::type</a>
|
||
<a name="l00395"></a>00395 >::type iterator_type;
|
||
<a name="l00396"></a>00396
|
||
<a name="l00397"></a>00397 sectionalizer_type::apply(<a class="code" href="group__access.html#gd96ba07cd3c6c3216bd5ab69adc9ccb5" title="Function to get the exterior_ring ring of a polygon.">exterior_ring</a>(poly), sections, -1, multi_index);
|
||
<a name="l00398"></a>00398
|
||
<a name="l00399"></a>00399 <span class="keywordtype">int</span> i = 0;
|
||
<a name="l00400"></a>00400 <span class="keywordflow">for</span> (iterator_type it = boost::begin(<a class="code" href="group__access.html#g5af585b056bb80bf3dfe7c07ad30d84a" title="Function to get the interior rings of a polygon (non const version).">interior_rings</a>(poly));
|
||
<a name="l00401"></a>00401 it != boost::end(<a class="code" href="group__access.html#g5af585b056bb80bf3dfe7c07ad30d84a" title="Function to get the interior rings of a polygon (non const version).">interior_rings</a>(poly));
|
||
<a name="l00402"></a>00402 ++it, ++i)
|
||
<a name="l00403"></a>00403 {
|
||
<a name="l00404"></a>00404 sectionalizer_type::apply(*it, sections, i, multi_index);
|
||
<a name="l00405"></a>00405 }
|
||
<a name="l00406"></a>00406 }
|
||
<a name="l00407"></a>00407 };
|
||
<a name="l00408"></a>00408
|
||
<a name="l00409"></a>00409 <span class="keyword">template</span>
|
||
<a name="l00410"></a>00410 <
|
||
<a name="l00411"></a>00411 <span class="keyword">typename</span> Box,
|
||
<a name="l00412"></a>00412 <span class="keyword">typename</span> Sections,
|
||
<a name="l00413"></a>00413 std::size_t DimensionCount,
|
||
<a name="l00414"></a>00414 std::size_t MaxCount
|
||
<a name="l00415"></a>00415 >
|
||
<a name="l00416"></a>00416 <span class="keyword">struct </span>sectionalize_box
|
||
<a name="l00417"></a>00417 {
|
||
<a name="l00418"></a>00418 <span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">void</span> apply(Box <span class="keyword">const</span>& <a class="code" href="classboost_1_1geometry_1_1box.html" title="Class box: defines a box made of two describing points.">box</a>, Sections& <a class="code" href="structboost_1_1geometry_1_1sections.html" title="Structure containing a collection of sections.">sections</a>)
|
||
<a name="l00419"></a>00419 {
|
||
<a name="l00420"></a>00420 <span class="keyword">typedef</span> <span class="keyword">typename</span> <a class="code" href="structboost_1_1geometry_1_1point__type.html" title="Meta-function which defines point type of any geometry.">point_type<Box>::type</a> <a class="code" href="structboost_1_1geometry_1_1point__type.html" title="Meta-function which defines point type of any geometry.">point_type</a>;
|
||
<a name="l00421"></a>00421
|
||
<a name="l00422"></a>00422 assert_dimension<Box, 2>();
|
||
<a name="l00423"></a>00423
|
||
<a name="l00424"></a>00424 <span class="comment">// Add all four sides of the 2D-box as separate section.</span>
|
||
<a name="l00425"></a>00425 <span class="comment">// Easiest is to convert it to a polygon.</span>
|
||
<a name="l00426"></a>00426 <span class="comment">// However, we don't have the polygon type</span>
|
||
<a name="l00427"></a>00427 <span class="comment">// (or polygon would be a helper-type).</span>
|
||
<a name="l00428"></a>00428 <span class="comment">// Therefore we mimic a linestring/std::vector of 5 points</span>
|
||
<a name="l00429"></a>00429
|
||
<a name="l00430"></a>00430 point_type ll, lr, ul, ur;
|
||
<a name="l00431"></a>00431 <a class="code" href="group__access.html#gf0c9c98fa6adc702d43606c33cca5652" title="Assign the 4 points of a 2D box.">assign_box_corners</a>(box, ll, lr, ul, ur);
|
||
<a name="l00432"></a>00432
|
||
<a name="l00433"></a>00433 std::vector<point_type> points;
|
||
<a name="l00434"></a>00434 points.push_back(ll);
|
||
<a name="l00435"></a>00435 points.push_back(ul);
|
||
<a name="l00436"></a>00436 points.push_back(ur);
|
||
<a name="l00437"></a>00437 points.push_back(lr);
|
||
<a name="l00438"></a>00438 points.push_back(ll);
|
||
<a name="l00439"></a>00439
|
||
<a name="l00440"></a>00440 sectionalize_range
|
||
<a name="l00441"></a>00441 <
|
||
<a name="l00442"></a>00442 std::vector<point_type>,
|
||
<a name="l00443"></a>00443 point_type,
|
||
<a name="l00444"></a>00444 Sections,
|
||
<a name="l00445"></a>00445 DimensionCount,
|
||
<a name="l00446"></a>00446 MaxCount
|
||
<a name="l00447"></a>00447 >::apply(points, sections);
|
||
<a name="l00448"></a>00448 }
|
||
<a name="l00449"></a>00449 };
|
||
<a name="l00450"></a>00450
|
||
<a name="l00451"></a>00451 }} <span class="comment">// namespace detail::sectionalize</span>
|
||
<a name="l00452"></a>00452 <span class="preprocessor">#endif // DOXYGEN_NO_DETAIL</span>
|
||
<a name="l00453"></a>00453 <span class="preprocessor"></span>
|
||
<a name="l00454"></a>00454
|
||
<a name="l00455"></a>00455 <span class="preprocessor">#ifndef DOXYGEN_NO_DISPATCH</span>
|
||
<a name="l00456"></a>00456 <span class="preprocessor"></span><span class="keyword">namespace </span>dispatch
|
||
<a name="l00457"></a>00457 {
|
||
<a name="l00458"></a>00458
|
||
<a name="l00459"></a>00459 <span class="keyword">template</span>
|
||
<a name="l00460"></a>00460 <
|
||
<a name="l00461"></a>00461 <span class="keyword">typename</span> Tag,
|
||
<a name="l00462"></a>00462 <span class="keyword">typename</span> Geometry,
|
||
<a name="l00463"></a>00463 <span class="keyword">typename</span> Sections,
|
||
<a name="l00464"></a>00464 std::size_t DimensionCount,
|
||
<a name="l00465"></a>00465 std::size_t MaxCount
|
||
<a name="l00466"></a>00466 >
|
||
<a name="l00467"></a>00467 <span class="keyword">struct </span><a class="code" href="group__sectionalize.html#g5f4d5b585d242d644a1b0b60c805b930" title="Split a geometry into monotonic sections.">sectionalize</a>
|
||
<a name="l00468"></a>00468 {};
|
||
<a name="l00469"></a>00469
|
||
<a name="l00470"></a>00470 <span class="keyword">template</span>
|
||
<a name="l00471"></a>00471 <
|
||
<a name="l00472"></a>00472 <span class="keyword">typename</span> Box,
|
||
<a name="l00473"></a>00473 <span class="keyword">typename</span> Sections,
|
||
<a name="l00474"></a>00474 std::size_t DimensionCount,
|
||
<a name="l00475"></a>00475 std::size_t MaxCount
|
||
<a name="l00476"></a>00476 >
|
||
<a name="l00477"></a>00477 <span class="keyword">struct </span><a class="code" href="group__sectionalize.html#g5f4d5b585d242d644a1b0b60c805b930" title="Split a geometry into monotonic sections.">sectionalize</a><box_tag, Box, Sections, DimensionCount, MaxCount>
|
||
<a name="l00478"></a>00478 : detail::<a class="code" href="group__sectionalize.html#g5f4d5b585d242d644a1b0b60c805b930" title="Split a geometry into monotonic sections.">sectionalize</a>::sectionalize_box
|
||
<a name="l00479"></a>00479 <
|
||
<a name="l00480"></a>00480 Box,
|
||
<a name="l00481"></a>00481 Sections,
|
||
<a name="l00482"></a>00482 DimensionCount,
|
||
<a name="l00483"></a>00483 MaxCount
|
||
<a name="l00484"></a>00484 >
|
||
<a name="l00485"></a>00485 {};
|
||
<a name="l00486"></a>00486
|
||
<a name="l00487"></a>00487 <span class="keyword">template</span>
|
||
<a name="l00488"></a>00488 <
|
||
<a name="l00489"></a>00489 <span class="keyword">typename</span> LineString, <span class="keyword">typename</span>
|
||
<a name="l00490"></a>00490 Sections,
|
||
<a name="l00491"></a>00491 std::size_t DimensionCount,
|
||
<a name="l00492"></a>00492 std::size_t MaxCount
|
||
<a name="l00493"></a>00493 >
|
||
<a name="l00494"></a>00494 <span class="keyword">struct </span><a class="code" href="group__sectionalize.html#g5f4d5b585d242d644a1b0b60c805b930" title="Split a geometry into monotonic sections.">sectionalize</a>
|
||
<a name="l00495"></a>00495 <
|
||
<a name="l00496"></a>00496 linestring_tag,
|
||
<a name="l00497"></a>00497 LineString,
|
||
<a name="l00498"></a>00498 Sections,
|
||
<a name="l00499"></a>00499 DimensionCount,
|
||
<a name="l00500"></a>00500 MaxCount
|
||
<a name="l00501"></a>00501 >
|
||
<a name="l00502"></a>00502 : detail::<a class="code" href="group__sectionalize.html#g5f4d5b585d242d644a1b0b60c805b930" title="Split a geometry into monotonic sections.">sectionalize</a>::sectionalize_range
|
||
<a name="l00503"></a>00503 <
|
||
<a name="l00504"></a>00504 LineString,
|
||
<a name="l00505"></a>00505 typename point_type<LineString>::type,
|
||
<a name="l00506"></a>00506 Sections,
|
||
<a name="l00507"></a>00507 DimensionCount,
|
||
<a name="l00508"></a>00508 MaxCount
|
||
<a name="l00509"></a>00509 >
|
||
<a name="l00510"></a>00510 {};
|
||
<a name="l00511"></a>00511
|
||
<a name="l00512"></a>00512 <span class="keyword">template</span>
|
||
<a name="l00513"></a>00513 <
|
||
<a name="l00514"></a>00514 <span class="keyword">typename</span> Range,
|
||
<a name="l00515"></a>00515 <span class="keyword">typename</span> Sections,
|
||
<a name="l00516"></a>00516 std::size_t DimensionCount,
|
||
<a name="l00517"></a>00517 std::size_t MaxCount
|
||
<a name="l00518"></a>00518 >
|
||
<a name="l00519"></a>00519 <span class="keyword">struct </span><a class="code" href="group__sectionalize.html#g5f4d5b585d242d644a1b0b60c805b930" title="Split a geometry into monotonic sections.">sectionalize</a><ring_tag, Range, Sections, DimensionCount, MaxCount>
|
||
<a name="l00520"></a>00520 : detail::<a class="code" href="group__sectionalize.html#g5f4d5b585d242d644a1b0b60c805b930" title="Split a geometry into monotonic sections.">sectionalize</a>::sectionalize_range
|
||
<a name="l00521"></a>00521 <
|
||
<a name="l00522"></a>00522 Range,
|
||
<a name="l00523"></a>00523 typename point_type<Range>::type,
|
||
<a name="l00524"></a>00524 Sections,
|
||
<a name="l00525"></a>00525 DimensionCount,
|
||
<a name="l00526"></a>00526 MaxCount
|
||
<a name="l00527"></a>00527 >
|
||
<a name="l00528"></a>00528 {};
|
||
<a name="l00529"></a>00529
|
||
<a name="l00530"></a>00530 <span class="keyword">template</span>
|
||
<a name="l00531"></a>00531 <
|
||
<a name="l00532"></a>00532 <span class="keyword">typename</span> Polygon,
|
||
<a name="l00533"></a>00533 <span class="keyword">typename</span> Sections,
|
||
<a name="l00534"></a>00534 std::size_t DimensionCount,
|
||
<a name="l00535"></a>00535 std::size_t MaxCount
|
||
<a name="l00536"></a>00536 >
|
||
<a name="l00537"></a>00537 <span class="keyword">struct </span><a class="code" href="group__sectionalize.html#g5f4d5b585d242d644a1b0b60c805b930" title="Split a geometry into monotonic sections.">sectionalize</a><polygon_tag, Polygon, Sections, DimensionCount, MaxCount>
|
||
<a name="l00538"></a>00538 : detail::<a class="code" href="group__sectionalize.html#g5f4d5b585d242d644a1b0b60c805b930" title="Split a geometry into monotonic sections.">sectionalize</a>::sectionalize_polygon
|
||
<a name="l00539"></a>00539 <
|
||
<a name="l00540"></a>00540 Polygon, Sections, DimensionCount, MaxCount
|
||
<a name="l00541"></a>00541 >
|
||
<a name="l00542"></a>00542 {};
|
||
<a name="l00543"></a>00543
|
||
<a name="l00544"></a>00544 } <span class="comment">// namespace dispatch</span>
|
||
<a name="l00545"></a>00545 <span class="preprocessor">#endif</span>
|
||
<a name="l00546"></a>00546 <span class="preprocessor"></span>
|
||
<a name="l00547"></a>00547
|
||
<a name="l00557"></a>00557 <span class="keyword">template</span><<span class="keyword">typename</span> Geometry, <span class="keyword">typename</span> Sections>
|
||
<a name="l00558"></a><a class="code" href="group__sectionalize.html#g5f4d5b585d242d644a1b0b60c805b930">00558</a> <span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="group__sectionalize.html#g5f4d5b585d242d644a1b0b60c805b930" title="Split a geometry into monotonic sections.">sectionalize</a>(Geometry <span class="keyword">const</span>& geometry, Sections& <a class="code" href="structboost_1_1geometry_1_1sections.html" title="Structure containing a collection of sections.">sections</a>)
|
||
<a name="l00559"></a>00559 {
|
||
<a name="l00560"></a>00560 concept::check<const Geometry>();
|
||
<a name="l00561"></a>00561
|
||
<a name="l00562"></a>00562 <span class="comment">// A maximum of 10 segments per section seems to give the fastest results</span>
|
||
<a name="l00563"></a>00563 <span class="keyword">static</span> <span class="keyword">const</span> std::size_t max_segments_per_section = 10;
|
||
<a name="l00564"></a>00564 <span class="keyword">typedef</span> <a class="code" href="group__sectionalize.html#g5f4d5b585d242d644a1b0b60c805b930" title="Split a geometry into monotonic sections.">dispatch::sectionalize</a>
|
||
<a name="l00565"></a>00565 <
|
||
<a name="l00566"></a>00566 <span class="keyword">typename</span> <a class="code" href="structboost_1_1geometry_1_1geometry__not__recognized__tag.html" title="&quot;default&quot; tag">tag<Geometry>::type</a>,
|
||
<a name="l00567"></a>00567 Geometry,
|
||
<a name="l00568"></a>00568 Sections,
|
||
<a name="l00569"></a>00569 Sections::value,
|
||
<a name="l00570"></a>00570 max_segments_per_section
|
||
<a name="l00571"></a>00571 > sectionalizer_type;
|
||
<a name="l00572"></a>00572
|
||
<a name="l00573"></a>00573 sections.clear();
|
||
<a name="l00574"></a>00574 sectionalizer_type::apply(geometry, sections);
|
||
<a name="l00575"></a>00575 <span class="keywordtype">int</span> index = 0;
|
||
<a name="l00576"></a>00576 <span class="keywordflow">for</span> (<span class="keyword">typename</span> boost::range_iterator<Sections>::type it = boost::begin(sections);
|
||
<a name="l00577"></a>00577 it != boost::end(sections);
|
||
<a name="l00578"></a>00578 ++it)
|
||
<a name="l00579"></a>00579 {
|
||
<a name="l00580"></a>00580 it->id = index++;
|
||
<a name="l00581"></a>00581 }
|
||
<a name="l00582"></a>00582 }
|
||
<a name="l00583"></a>00583
|
||
<a name="l00584"></a>00584
|
||
<a name="l00585"></a>00585
|
||
<a name="l00586"></a>00586
|
||
<a name="l00587"></a>00587
|
||
<a name="l00588"></a>00588 }} <span class="comment">// namespace boost::geometry</span>
|
||
<a name="l00589"></a>00589
|
||
<a name="l00590"></a>00590 <span class="preprocessor">#endif // BOOST_GEOMETRY_ALGORITHMS_SECTIONALIZE_HPP</span>
|
||
</pre></div></div>
|
||
<hr size="1">
|
||
<table width="100%">
|
||
<tbody>
|
||
<tr>
|
||
<td align="left"><small>
|
||
<p>December 1, 2009</p>
|
||
</small></td>
|
||
<td align="right">
|
||
<small>Copyright <20> 1995-2009 Barend Gehrels, Geodan, Amsterdam<br>
|
||
Copyright <20> 2008-2009 Bruno Lalande, Paris<br>
|
||
Copyright <20> 2009 Mateusz Loskot, Cadcorp, London<br>
|
||
</small>
|
||
</td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
|
||
<address style="text-align: right;"><small>
|
||
Documentation is generated by <a href="http://www.doxygen.org/index.html">Doxygen</a>
|
||
</small></address>
|
||
</body>
|
||
</html>
|