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<h1>boost/geometry/algorithms/simplify.hpp</h1><a href="algorithms_2simplify_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>
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<a name="l00002"></a>00002 <span class="comment">//</span>
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<a name="l00003"></a>00003 <span class="comment">// Copyright Barend Gehrels 2007-2009, Geodan, Amsterdam, the Netherlands.</span>
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||
<a name="l00004"></a>00004 <span class="comment">// Copyright Bruno Lalande 2008, 2009</span>
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||
<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>
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<a name="l00007"></a>00007 <span class="comment">// http://www.boost.org/LICENSE_1_0.txt)</span>
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<a name="l00008"></a>00008
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<a name="l00009"></a>00009 <span class="preprocessor">#ifndef BOOST_GEOMETRY_ALGORITHMS_SIMPLIFY_HPP</span>
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<a name="l00010"></a>00010 <span class="preprocessor"></span><span class="preprocessor">#define BOOST_GEOMETRY_ALGORITHMS_SIMPLIFY_HPP</span>
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<a name="l00011"></a>00011 <span class="preprocessor"></span>
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<a name="l00012"></a>00012 <span class="preprocessor">#include <boost/range/functions.hpp></span>
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<a name="l00013"></a>00013 <span class="preprocessor">#include <boost/range/metafunctions.hpp></span>
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<a name="l00014"></a>00014
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<a name="l00015"></a>00015
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<a name="l00016"></a>00016 <span class="preprocessor">#include <<a class="code" href="cs_8hpp.html">boost/geometry/core/cs.hpp</a>></span>
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<a name="l00017"></a>00017 <span class="preprocessor">#include <<a class="code" href="core_2ring__type_8hpp.html">boost/geometry/core/ring_type.hpp</a>></span>
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<a name="l00018"></a>00018 <span class="preprocessor">#include <<a class="code" href="exterior__ring_8hpp.html">boost/geometry/core/exterior_ring.hpp</a>></span>
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<a name="l00019"></a>00019 <span class="preprocessor">#include <<a class="code" href="interior__rings_8hpp.html">boost/geometry/core/interior_rings.hpp</a>></span>
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<a name="l00020"></a>00020
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<a name="l00021"></a>00021 <span class="preprocessor">#include <<a class="code" href="geometries_2concepts_2check_8hpp.html">boost/geometry/geometries/concepts/check.hpp</a>></span>
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<a name="l00022"></a>00022
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||
<a name="l00023"></a>00023 <span class="preprocessor">#include <<a class="code" href="simplify__douglas__peucker_8hpp.html">boost/geometry/strategies/agnostic/simplify_douglas_peucker.hpp</a>></span>
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<a name="l00024"></a>00024 <span class="preprocessor">#include <<a class="code" href="simplify__concept_8hpp.html">boost/geometry/strategies/concepts/simplify_concept.hpp</a>></span>
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<a name="l00025"></a>00025
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<a name="l00026"></a>00026 <span class="preprocessor">#include <<a class="code" href="clear_8hpp.html">boost/geometry/algorithms/clear.hpp</a>></span>
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<a name="l00027"></a>00027
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||
<a name="l00028"></a>00028
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<a name="l00029"></a>00029
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||
<a name="l00065"></a>00065 <span class="keyword">namespace </span>boost { <span class="keyword">namespace </span>geometry
|
||
<a name="l00066"></a>00066 {
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||
<a name="l00067"></a>00067
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||
<a name="l00068"></a>00068 <span class="preprocessor">#ifndef DOXYGEN_NO_DETAIL</span>
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||
<a name="l00069"></a>00069 <span class="preprocessor"></span><span class="keyword">namespace </span>detail { <span class="keyword">namespace </span><a class="code" href="group__simplify.html#gf44556d83e87be316b7dc26ca921af8b" title="Simplify a geometry using a specified strategy.">simplify</a> {
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<a name="l00070"></a>00070
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||
<a name="l00071"></a>00071 <span class="keyword">template</span><<span class="keyword">typename</span> Range, <span class="keyword">typename</span> Strategy>
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||
<a name="l00072"></a>00072 <span class="keyword">struct </span>simplify_range_inserter
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<a name="l00073"></a>00073 {
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||
<a name="l00074"></a>00074 <span class="keyword">template</span> <<span class="keyword">typename</span> OutputIterator>
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||
<a name="l00075"></a>00075 <span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">void</span> apply(Range <span class="keyword">const</span>& range, OutputIterator out,
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||
<a name="l00076"></a>00076 <span class="keywordtype">double</span> max_distance, Strategy <span class="keyword">const</span>& strategy)
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||
<a name="l00077"></a>00077 {
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||
<a name="l00078"></a>00078 <span class="keywordflow">if</span> (boost::size(range) <= 2 || max_distance < 0)
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||
<a name="l00079"></a>00079 {
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||
<a name="l00080"></a>00080 std::copy(boost::begin(range), boost::end(range), out);
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||
<a name="l00081"></a>00081 }
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<a name="l00082"></a>00082 <span class="keywordflow">else</span>
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||
<a name="l00083"></a>00083 {
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||
<a name="l00084"></a>00084 strategy.apply(range, out, max_distance);
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||
<a name="l00085"></a>00085 }
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||
<a name="l00086"></a>00086 }
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||
<a name="l00087"></a>00087 };
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||
<a name="l00088"></a>00088
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||
<a name="l00089"></a>00089
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||
<a name="l00090"></a>00090 <span class="keyword">template</span><<span class="keyword">typename</span> Range, <span class="keyword">typename</span> Strategy>
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||
<a name="l00091"></a>00091 <span class="keyword">struct </span>simplify_copy
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||
<a name="l00092"></a>00092 {
|
||
<a name="l00093"></a>00093 <span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">void</span> apply(Range <span class="keyword">const</span>& range, Range& out,
|
||
<a name="l00094"></a>00094 <span class="keywordtype">double</span> max_distance, Strategy <span class="keyword">const</span>& strategy)
|
||
<a name="l00095"></a>00095 {
|
||
<a name="l00096"></a>00096 std::copy
|
||
<a name="l00097"></a>00097 (
|
||
<a name="l00098"></a>00098 boost::begin(range), boost::end(range), std::back_inserter(out)
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||
<a name="l00099"></a>00099 );
|
||
<a name="l00100"></a>00100 }
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||
<a name="l00101"></a>00101 };
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||
<a name="l00102"></a>00102
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||
<a name="l00103"></a>00103
|
||
<a name="l00104"></a>00104 <span class="keyword">template</span><<span class="keyword">typename</span> Range, <span class="keyword">typename</span> Strategy, std::<span class="keywordtype">size_t</span> Minimum>
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||
<a name="l00105"></a>00105 <span class="keyword">struct </span>simplify_range
|
||
<a name="l00106"></a>00106 {
|
||
<a name="l00107"></a>00107 <span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">void</span> apply(Range <span class="keyword">const</span>& range, Range& out,
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||
<a name="l00108"></a>00108 <span class="keywordtype">double</span> max_distance, Strategy <span class="keyword">const</span>& strategy)
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||
<a name="l00109"></a>00109 {
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||
<a name="l00110"></a>00110 <span class="comment">// Call do_container for a linestring / ring</span>
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||
<a name="l00111"></a>00111
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||
<a name="l00112"></a>00112 <span class="comment">/* For a RING:</span>
|
||
<a name="l00113"></a>00113 <span class="comment"> The first/last point (the closing point of the ring) should maybe</span>
|
||
<a name="l00114"></a>00114 <span class="comment"> be excluded because it lies on a line with second/one but last.</span>
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||
<a name="l00115"></a>00115 <span class="comment"> Here it is never excluded.</span>
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||
<a name="l00116"></a>00116 <span class="comment"></span>
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||
<a name="l00117"></a>00117 <span class="comment"> Note also that, especially if max_distance is too large,</span>
|
||
<a name="l00118"></a>00118 <span class="comment"> the output ring might be self intersecting while the input ring is</span>
|
||
<a name="l00119"></a>00119 <span class="comment"> not, although chances are low in normal polygons</span>
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||
<a name="l00120"></a>00120 <span class="comment"></span>
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||
<a name="l00121"></a>00121 <span class="comment"> Finally the inputring might have 4 points (=correct),</span>
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||
<a name="l00122"></a>00122 <span class="comment"> the output < 4(=wrong)</span>
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||
<a name="l00123"></a>00123 <span class="comment"> */</span>
|
||
<a name="l00124"></a>00124
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||
<a name="l00125"></a>00125 <span class="keywordflow">if</span> (boost::size(range) <= <span class="keywordtype">int</span>(Minimum) || max_distance < 0.0)
|
||
<a name="l00126"></a>00126 {
|
||
<a name="l00127"></a>00127 simplify_copy<Range, Strategy>::apply
|
||
<a name="l00128"></a>00128 (
|
||
<a name="l00129"></a>00129 range, out, max_distance, strategy
|
||
<a name="l00130"></a>00130 );
|
||
<a name="l00131"></a>00131 }
|
||
<a name="l00132"></a>00132 <span class="keywordflow">else</span>
|
||
<a name="l00133"></a>00133 {
|
||
<a name="l00134"></a>00134 simplify_range_inserter<Range, Strategy>::apply
|
||
<a name="l00135"></a>00135 (
|
||
<a name="l00136"></a>00136 range, std::back_inserter(out), max_distance, strategy
|
||
<a name="l00137"></a>00137 );
|
||
<a name="l00138"></a>00138 }
|
||
<a name="l00139"></a>00139 }
|
||
<a name="l00140"></a>00140 };
|
||
<a name="l00141"></a>00141
|
||
<a name="l00142"></a>00142 <span class="keyword">template</span><<span class="keyword">typename</span> Polygon, <span class="keyword">typename</span> Strategy>
|
||
<a name="l00143"></a>00143 <span class="keyword">struct </span>simplify_polygon
|
||
<a name="l00144"></a>00144 {
|
||
<a name="l00145"></a>00145 <span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">void</span> apply(Polygon <span class="keyword">const</span>& poly_in, Polygon& poly_out,
|
||
<a name="l00146"></a>00146 <span class="keywordtype">double</span> max_distance, Strategy <span class="keyword">const</span>& strategy)
|
||
<a name="l00147"></a>00147 {
|
||
<a name="l00148"></a>00148 <span class="keyword">typedef</span> <span class="keyword">typename</span> ring_type<Polygon>::type ring_type;
|
||
<a name="l00149"></a>00149
|
||
<a name="l00150"></a>00150 <span class="keyword">typedef</span> <span class="keyword">typename</span> boost::range_iterator
|
||
<a name="l00151"></a>00151 <<span class="keyword">typename</span> interior_type<Polygon>::type>::type iterator_type;
|
||
<a name="l00152"></a>00152 <span class="keyword">typedef</span> <span class="keyword">typename</span> boost::range_const_iterator
|
||
<a name="l00153"></a>00153 <<span class="keyword">typename</span> interior_type<Polygon>::type>::type const_iterator_type;
|
||
<a name="l00154"></a>00154
|
||
<a name="l00155"></a>00155 <span class="comment">// Note that if there are inner rings, and distance is too large,</span>
|
||
<a name="l00156"></a>00156 <span class="comment">// they might intersect with the outer ring in the output,</span>
|
||
<a name="l00157"></a>00157 <span class="comment">// while it didn't in the input.</span>
|
||
<a name="l00158"></a>00158 simplify_range<ring_type, Strategy, 4>::apply(<a class="code" href="group__access.html#gd96ba07cd3c6c3216bd5ab69adc9ccb5" title="Function to get the exterior_ring ring of a polygon.">exterior_ring</a>(poly_in),
|
||
<a name="l00159"></a>00159 <a class="code" href="group__access.html#gd96ba07cd3c6c3216bd5ab69adc9ccb5" title="Function to get the exterior_ring ring of a polygon.">exterior_ring</a>(poly_out),
|
||
<a name="l00160"></a>00160 max_distance, strategy);
|
||
<a name="l00161"></a>00161
|
||
<a name="l00162"></a>00162 <span class="comment">// Note: here a resizeable container is assumed.</span>
|
||
<a name="l00163"></a>00163 <span class="comment">// Maybe we should make this part of the concept.</span>
|
||
<a name="l00164"></a>00164 <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_out).resize(<a class="code" href="group__access.html#gfed6b5ddd56682edff7b3b123bd26992" title="Function to get the number of interior rings of a polygon.">num_interior_rings</a>(poly_in));
|
||
<a name="l00165"></a>00165
|
||
<a name="l00166"></a>00166 iterator_type it_out = 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_out));
|
||
<a name="l00167"></a>00167
|
||
<a name="l00168"></a>00168 <span class="keywordflow">for</span> (const_iterator_type it_in = 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_in));
|
||
<a name="l00169"></a>00169 it_in != 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_in));
|
||
<a name="l00170"></a>00170 ++it_in, ++it_out)
|
||
<a name="l00171"></a>00171 {
|
||
<a name="l00172"></a>00172 simplify_range<ring_type, Strategy, 4>::apply(*it_in,
|
||
<a name="l00173"></a>00173 *it_out, max_distance, strategy);
|
||
<a name="l00174"></a>00174 }
|
||
<a name="l00175"></a>00175 }
|
||
<a name="l00176"></a>00176 };
|
||
<a name="l00177"></a>00177
|
||
<a name="l00178"></a>00178
|
||
<a name="l00179"></a>00179 }} <span class="comment">// namespace detail::simplify</span>
|
||
<a name="l00180"></a>00180 <span class="preprocessor">#endif // DOXYGEN_NO_DETAIL</span>
|
||
<a name="l00181"></a>00181 <span class="preprocessor"></span>
|
||
<a name="l00182"></a>00182
|
||
<a name="l00183"></a>00183 <span class="preprocessor">#ifndef DOXYGEN_NO_DISPATCH</span>
|
||
<a name="l00184"></a>00184 <span class="preprocessor"></span><span class="keyword">namespace </span>dispatch
|
||
<a name="l00185"></a>00185 {
|
||
<a name="l00186"></a>00186
|
||
<a name="l00187"></a>00187 <span class="keyword">template</span> <<span class="keyword">typename</span> Tag, <span class="keyword">typename</span> Geometry, <span class="keyword">typename</span> Strategy>
|
||
<a name="l00188"></a>00188 <span class="keyword">struct </span><a class="code" href="group__simplify.html#gf44556d83e87be316b7dc26ca921af8b" title="Simplify a geometry using a specified strategy.">simplify</a>
|
||
<a name="l00189"></a>00189 {
|
||
<a name="l00190"></a>00190 };
|
||
<a name="l00191"></a>00191
|
||
<a name="l00192"></a>00192 <span class="keyword">template</span> <<span class="keyword">typename</span> Po<span class="keywordtype">int</span>, <span class="keyword">typename</span> Strategy>
|
||
<a name="l00193"></a>00193 <span class="keyword">struct </span><a class="code" href="group__simplify.html#gf44556d83e87be316b7dc26ca921af8b" title="Simplify a geometry using a specified strategy.">simplify</a><point_tag, Point, Strategy>
|
||
<a name="l00194"></a>00194 {
|
||
<a name="l00195"></a>00195 <span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">void</span> apply(Point <span class="keyword">const</span>& point, Point& out,
|
||
<a name="l00196"></a>00196 <span class="keywordtype">double</span> max_distance, Strategy <span class="keyword">const</span>& strategy)
|
||
<a name="l00197"></a>00197 {
|
||
<a name="l00198"></a>00198 <a class="code" href="namespaceboost_1_1geometry.html#ff15abe2a4412c1913d5c4d5875f45f7" title="Copies coordinates from source to destination point.">copy_coordinates</a>(point, out);
|
||
<a name="l00199"></a>00199 }
|
||
<a name="l00200"></a>00200 };
|
||
<a name="l00201"></a>00201
|
||
<a name="l00202"></a>00202
|
||
<a name="l00203"></a>00203 <span class="keyword">template</span> <<span class="keyword">typename</span> Line<span class="keywordtype">string</span>, <span class="keyword">typename</span> Strategy>
|
||
<a name="l00204"></a>00204 <span class="keyword">struct </span><a class="code" href="group__simplify.html#gf44556d83e87be316b7dc26ca921af8b" title="Simplify a geometry using a specified strategy.">simplify</a><linestring_tag, Linestring, Strategy>
|
||
<a name="l00205"></a>00205 : detail::<a class="code" href="group__simplify.html#gf44556d83e87be316b7dc26ca921af8b" title="Simplify a geometry using a specified strategy.">simplify</a>::simplify_range
|
||
<a name="l00206"></a>00206 <
|
||
<a name="l00207"></a>00207 Linestring,
|
||
<a name="l00208"></a>00208 Strategy,
|
||
<a name="l00209"></a>00209 2
|
||
<a name="l00210"></a>00210 >
|
||
<a name="l00211"></a>00211 {};
|
||
<a name="l00212"></a>00212
|
||
<a name="l00213"></a>00213 <span class="keyword">template</span> <<span class="keyword">typename</span> Ring, <span class="keyword">typename</span> Strategy>
|
||
<a name="l00214"></a>00214 <span class="keyword">struct </span><a class="code" href="group__simplify.html#gf44556d83e87be316b7dc26ca921af8b" title="Simplify a geometry using a specified strategy.">simplify</a><ring_tag, Ring, Strategy>
|
||
<a name="l00215"></a>00215 : detail::<a class="code" href="group__simplify.html#gf44556d83e87be316b7dc26ca921af8b" title="Simplify a geometry using a specified strategy.">simplify</a>::simplify_range
|
||
<a name="l00216"></a>00216 <
|
||
<a name="l00217"></a>00217 Ring,
|
||
<a name="l00218"></a>00218 Strategy,
|
||
<a name="l00219"></a>00219 4
|
||
<a name="l00220"></a>00220 >
|
||
<a name="l00221"></a>00221 {};
|
||
<a name="l00222"></a>00222
|
||
<a name="l00223"></a>00223 <span class="keyword">template</span> <<span class="keyword">typename</span> Polygon, <span class="keyword">typename</span> Strategy>
|
||
<a name="l00224"></a>00224 <span class="keyword">struct </span><a class="code" href="group__simplify.html#gf44556d83e87be316b7dc26ca921af8b" title="Simplify a geometry using a specified strategy.">simplify</a><polygon_tag, Polygon, Strategy>
|
||
<a name="l00225"></a>00225 : detail::<a class="code" href="group__simplify.html#gf44556d83e87be316b7dc26ca921af8b" title="Simplify a geometry using a specified strategy.">simplify</a>::simplify_polygon
|
||
<a name="l00226"></a>00226 <
|
||
<a name="l00227"></a>00227 Polygon,
|
||
<a name="l00228"></a>00228 Strategy
|
||
<a name="l00229"></a>00229 >
|
||
<a name="l00230"></a>00230 {};
|
||
<a name="l00231"></a>00231
|
||
<a name="l00232"></a>00232
|
||
<a name="l00233"></a>00233 <span class="keyword">template</span> <<span class="keyword">typename</span> Tag, <span class="keyword">typename</span> Geometry, <span class="keyword">typename</span> Strategy>
|
||
<a name="l00234"></a>00234 <span class="keyword">struct </span><a class="code" href="group__simplify.html#g233462433d3dacfba8ff53ac93320c63" title="Simplify a geometry, using an output iterator and a specified strategy.">simplify_inserter</a>
|
||
<a name="l00235"></a>00235 {
|
||
<a name="l00236"></a>00236 };
|
||
<a name="l00237"></a>00237
|
||
<a name="l00238"></a>00238
|
||
<a name="l00239"></a>00239 <span class="keyword">template</span> <<span class="keyword">typename</span> Line<span class="keywordtype">string</span>, <span class="keyword">typename</span> Strategy>
|
||
<a name="l00240"></a>00240 <span class="keyword">struct </span><a class="code" href="group__simplify.html#g233462433d3dacfba8ff53ac93320c63" title="Simplify a geometry, using an output iterator and a specified strategy.">simplify_inserter</a><linestring_tag, Linestring, Strategy>
|
||
<a name="l00241"></a>00241 : detail::<a class="code" href="group__simplify.html#gf44556d83e87be316b7dc26ca921af8b" title="Simplify a geometry using a specified strategy.">simplify</a>::simplify_range_inserter
|
||
<a name="l00242"></a>00242 <
|
||
<a name="l00243"></a>00243 Linestring,
|
||
<a name="l00244"></a>00244 Strategy
|
||
<a name="l00245"></a>00245 >
|
||
<a name="l00246"></a>00246 {};
|
||
<a name="l00247"></a>00247
|
||
<a name="l00248"></a>00248 <span class="keyword">template</span> <<span class="keyword">typename</span> Ring, <span class="keyword">typename</span> Strategy>
|
||
<a name="l00249"></a>00249 <span class="keyword">struct </span><a class="code" href="group__simplify.html#g233462433d3dacfba8ff53ac93320c63" title="Simplify a geometry, using an output iterator and a specified strategy.">simplify_inserter</a><ring_tag, Ring, Strategy>
|
||
<a name="l00250"></a>00250 : detail::<a class="code" href="group__simplify.html#gf44556d83e87be316b7dc26ca921af8b" title="Simplify a geometry using a specified strategy.">simplify</a>::simplify_range_inserter
|
||
<a name="l00251"></a>00251 <
|
||
<a name="l00252"></a>00252 Ring,
|
||
<a name="l00253"></a>00253 Strategy
|
||
<a name="l00254"></a>00254 >
|
||
<a name="l00255"></a>00255 {};
|
||
<a name="l00256"></a>00256
|
||
<a name="l00257"></a>00257
|
||
<a name="l00258"></a>00258 } <span class="comment">// namespace dispatch</span>
|
||
<a name="l00259"></a>00259 <span class="preprocessor">#endif // DOXYGEN_NO_DISPATCH</span>
|
||
<a name="l00260"></a>00260 <span class="preprocessor"></span>
|
||
<a name="l00261"></a>00261
|
||
<a name="l00272"></a>00272 <span class="keyword">template</span><<span class="keyword">typename</span> Geometry, <span class="keyword">typename</span> Strategy>
|
||
<a name="l00273"></a><a class="code" href="group__simplify.html#gf44556d83e87be316b7dc26ca921af8b">00273</a> <span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="group__simplify.html#gf44556d83e87be316b7dc26ca921af8b" title="Simplify a geometry using a specified strategy.">simplify</a>(Geometry <span class="keyword">const</span>& geometry, Geometry& out,
|
||
<a name="l00274"></a>00274 <span class="keywordtype">double</span> max_distance, Strategy <span class="keyword">const</span>& strategy)
|
||
<a name="l00275"></a>00275 {
|
||
<a name="l00276"></a>00276 concept::check<Geometry>();
|
||
<a name="l00277"></a>00277
|
||
<a name="l00278"></a>00278 BOOST_CONCEPT_ASSERT( (<a class="code" href="structboost_1_1geometry_1_1concept_1_1_simplify_strategy.html" title="Checks strategy for simplify.">geometry::concept::SimplifyStrategy<Strategy></a>) );
|
||
<a name="l00279"></a>00279
|
||
<a name="l00280"></a>00280 <a class="code" href="group__access.html#g348a741e48c328300cdd9e886b1c3b2f" title="Clears a linestring, linear ring or polygon (exterior+interiors) or multi*.">geometry::clear</a>(out);
|
||
<a name="l00281"></a>00281
|
||
<a name="l00282"></a>00282 <a class="code" href="group__simplify.html#gf44556d83e87be316b7dc26ca921af8b" title="Simplify a geometry using a specified strategy.">dispatch::simplify</a>
|
||
<a name="l00283"></a>00283 <
|
||
<a name="l00284"></a>00284 <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="l00285"></a>00285 Geometry,
|
||
<a name="l00286"></a>00286 Strategy
|
||
<a name="l00287"></a>00287 >::apply(geometry, out, max_distance, strategy);
|
||
<a name="l00288"></a>00288 }
|
||
<a name="l00289"></a>00289
|
||
<a name="l00290"></a>00290
|
||
<a name="l00291"></a>00291
|
||
<a name="l00292"></a>00292
|
||
<a name="l00309"></a>00309 <span class="keyword">template</span><<span class="keyword">typename</span> Geometry>
|
||
<a name="l00310"></a><a class="code" href="group__simplify.html#g6560f249f736ec06e42e952d8c74d953">00310</a> <span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="group__simplify.html#gf44556d83e87be316b7dc26ca921af8b" title="Simplify a geometry using a specified strategy.">simplify</a>(Geometry <span class="keyword">const</span>& geometry, Geometry& out,
|
||
<a name="l00311"></a>00311 <span class="keywordtype">double</span> max_distance)
|
||
<a name="l00312"></a>00312 {
|
||
<a name="l00313"></a>00313 concept::check<Geometry>();
|
||
<a name="l00314"></a>00314
|
||
<a name="l00315"></a>00315 <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<Geometry>::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="l00316"></a>00316 <span class="keyword">typedef</span> <span class="keyword">typename</span> <a class="code" href="structboost_1_1geometry_1_1cs__tag.html" title="Meta-function returning coordinate system tag (cs family) of any geometry.">cs_tag<point_type>::type</a> <a class="code" href="structboost_1_1geometry_1_1cs__tag.html" title="Meta-function returning coordinate system tag (cs family) of any geometry.">cs_tag</a>;
|
||
<a name="l00317"></a>00317 <span class="keyword">typedef</span> <span class="keyword">typename</span> <a class="code" href="structboost_1_1geometry_1_1strategy__distance__segment.html" title="Traits class binding a distance-to-segment strategy to a (possibly two) coordinate...">strategy_distance_segment</a>
|
||
<a name="l00318"></a>00318 <
|
||
<a name="l00319"></a>00319 cs_tag,
|
||
<a name="l00320"></a>00320 cs_tag,
|
||
<a name="l00321"></a>00321 point_type,
|
||
<a name="l00322"></a>00322 point_type
|
||
<a name="l00323"></a>00323 >::type ds_strategy_type;
|
||
<a name="l00324"></a>00324
|
||
<a name="l00325"></a>00325 <span class="keyword">typedef</span> <a class="code" href="classboost_1_1geometry_1_1strategy_1_1simplify_1_1douglas__peucker.html" title="Implements the simplify algorithm.">strategy::simplify::douglas_peucker</a>
|
||
<a name="l00326"></a>00326 <
|
||
<a name="l00327"></a>00327 point_type, ds_strategy_type
|
||
<a name="l00328"></a>00328 > strategy_type;
|
||
<a name="l00329"></a>00329
|
||
<a name="l00330"></a>00330 <a class="code" href="group__simplify.html#gf44556d83e87be316b7dc26ca921af8b" title="Simplify a geometry using a specified strategy.">simplify</a>(geometry, out, max_distance, strategy_type());
|
||
<a name="l00331"></a>00331 }
|
||
<a name="l00332"></a>00332
|
||
<a name="l00333"></a>00333
|
||
<a name="l00351"></a>00351 <span class="keyword">template</span><<span class="keyword">typename</span> Geometry, <span class="keyword">typename</span> OutputIterator, <span class="keyword">typename</span> Strategy>
|
||
<a name="l00352"></a><a class="code" href="group__simplify.html#g233462433d3dacfba8ff53ac93320c63">00352</a> <span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="group__simplify.html#g233462433d3dacfba8ff53ac93320c63" title="Simplify a geometry, using an output iterator and a specified strategy.">simplify_inserter</a>(Geometry <span class="keyword">const</span>& geometry, OutputIterator out,
|
||
<a name="l00353"></a>00353 <span class="keywordtype">double</span> max_distance, Strategy <span class="keyword">const</span>& strategy)
|
||
<a name="l00354"></a>00354 {
|
||
<a name="l00355"></a>00355 concept::check<const Geometry>();
|
||
<a name="l00356"></a>00356 BOOST_CONCEPT_ASSERT( (<a class="code" href="structboost_1_1geometry_1_1concept_1_1_simplify_strategy.html" title="Checks strategy for simplify.">geometry::concept::SimplifyStrategy<Strategy></a>) );
|
||
<a name="l00357"></a>00357
|
||
<a name="l00358"></a>00358 <a class="code" href="group__simplify.html#g233462433d3dacfba8ff53ac93320c63" title="Simplify a geometry, using an output iterator and a specified strategy.">dispatch::simplify_inserter</a>
|
||
<a name="l00359"></a>00359 <
|
||
<a name="l00360"></a>00360 <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="l00361"></a>00361 Geometry,
|
||
<a name="l00362"></a>00362 Strategy
|
||
<a name="l00363"></a>00363 >::apply(geometry, out, max_distance, strategy);
|
||
<a name="l00364"></a>00364 }
|
||
<a name="l00365"></a>00365
|
||
<a name="l00374"></a>00374 <span class="keyword">template</span><<span class="keyword">typename</span> Geometry, <span class="keyword">typename</span> OutputIterator>
|
||
<a name="l00375"></a><a class="code" href="group__simplify.html#gc4e7d4a2cb14c23be483ea45a9e8c931">00375</a> <span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="group__simplify.html#g233462433d3dacfba8ff53ac93320c63" title="Simplify a geometry, using an output iterator and a specified strategy.">simplify_inserter</a>(Geometry <span class="keyword">const</span>& geometry, OutputIterator out,
|
||
<a name="l00376"></a>00376 <span class="keywordtype">double</span> max_distance)
|
||
<a name="l00377"></a>00377 {
|
||
<a name="l00378"></a>00378 <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<Geometry>::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="l00379"></a>00379
|
||
<a name="l00380"></a>00380 <span class="comment">// Concept: output point type = point type of input geometry</span>
|
||
<a name="l00381"></a>00381 concept::check<const Geometry>();
|
||
<a name="l00382"></a>00382 concept::check<point_type>();
|
||
<a name="l00383"></a>00383
|
||
<a name="l00384"></a>00384 <span class="keyword">typedef</span> <span class="keyword">typename</span> <a class="code" href="structboost_1_1geometry_1_1cs__tag.html" title="Meta-function returning coordinate system tag (cs family) of any geometry.">cs_tag<point_type>::type</a> <a class="code" href="structboost_1_1geometry_1_1cs__tag.html" title="Meta-function returning coordinate system tag (cs family) of any geometry.">cs_tag</a>;
|
||
<a name="l00385"></a>00385 <span class="keyword">typedef</span> <span class="keyword">typename</span> <a class="code" href="structboost_1_1geometry_1_1strategy__distance__segment.html" title="Traits class binding a distance-to-segment strategy to a (possibly two) coordinate...">strategy_distance_segment</a>
|
||
<a name="l00386"></a>00386 <
|
||
<a name="l00387"></a>00387 cs_tag,
|
||
<a name="l00388"></a>00388 cs_tag,
|
||
<a name="l00389"></a>00389 point_type,
|
||
<a name="l00390"></a>00390 point_type
|
||
<a name="l00391"></a>00391 >::type ds_strategy_type;
|
||
<a name="l00392"></a>00392
|
||
<a name="l00393"></a>00393 <span class="keyword">typedef</span> <a class="code" href="classboost_1_1geometry_1_1strategy_1_1simplify_1_1douglas__peucker.html" title="Implements the simplify algorithm.">strategy::simplify::douglas_peucker</a>
|
||
<a name="l00394"></a>00394 <
|
||
<a name="l00395"></a>00395 point_type, ds_strategy_type
|
||
<a name="l00396"></a>00396 > strategy_type;
|
||
<a name="l00397"></a>00397
|
||
<a name="l00398"></a>00398 <a class="code" href="group__simplify.html#g233462433d3dacfba8ff53ac93320c63" title="Simplify a geometry, using an output iterator and a specified strategy.">dispatch::simplify_inserter</a>
|
||
<a name="l00399"></a>00399 <
|
||
<a name="l00400"></a>00400 <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="l00401"></a>00401 Geometry,
|
||
<a name="l00402"></a>00402 strategy_type
|
||
<a name="l00403"></a>00403 >::apply(geometry, out, max_distance, strategy_type());
|
||
<a name="l00404"></a>00404 }
|
||
<a name="l00405"></a>00405
|
||
<a name="l00406"></a>00406
|
||
<a name="l00407"></a>00407 }} <span class="comment">// namespace boost::geometry</span>
|
||
<a name="l00408"></a>00408
|
||
<a name="l00409"></a>00409 <span class="preprocessor">#endif // BOOST_GEOMETRY_ALGORITHMS_SIMPLIFY_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>
|