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<h1>boost/geometry/algorithms/within.hpp</h1><a href="algorithms_2within_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>
|
||
<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_WITHIN_HPP</span>
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<a name="l00010"></a>00010 <span class="preprocessor"></span><span class="preprocessor">#define BOOST_GEOMETRY_ALGORITHMS_WITHIN_HPP</span>
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<a name="l00011"></a>00011 <span class="preprocessor"></span>
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<a name="l00047"></a>00047 <span class="preprocessor">#include <cstddef></span>
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<a name="l00048"></a>00048
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<a name="l00049"></a>00049 <span class="preprocessor">#include <boost/range/functions.hpp></span>
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<a name="l00050"></a>00050 <span class="preprocessor">#include <boost/range/metafunctions.hpp></span>
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<a name="l00051"></a>00051
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<a name="l00052"></a>00052 <span class="preprocessor">#include <<a class="code" href="algorithms_2distance_8hpp.html">boost/geometry/algorithms/distance.hpp</a>></span>
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||
<a name="l00053"></a>00053 <span class="preprocessor">#include <<a class="code" href="make_8hpp.html">boost/geometry/algorithms/make.hpp</a>></span>
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||
<a name="l00054"></a>00054
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||
<a name="l00055"></a>00055 <span class="preprocessor">#include <<a class="code" href="access_8hpp.html">boost/geometry/core/access.hpp</a>></span>
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<a name="l00056"></a>00056 <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="l00057"></a>00057 <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="l00058"></a>00058 <span class="preprocessor">#include <<a class="code" href="cs_8hpp.html">boost/geometry/core/cs.hpp</a>></span>
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<a name="l00059"></a>00059
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<a name="l00060"></a>00060 <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="l00061"></a>00061
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<a name="l00062"></a>00062 <span class="preprocessor">#include <<a class="code" href="point__in__poly_8hpp.html">boost/geometry/strategies/point_in_poly.hpp</a>></span>
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<a name="l00063"></a>00063 <span class="preprocessor">#include <<a class="code" href="within__concept_8hpp.html">boost/geometry/strategies/concepts/within_concept.hpp</a>></span>
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<a name="l00064"></a>00064
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||
<a name="l00065"></a>00065
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||
<a name="l00066"></a>00066 <span class="keyword">namespace </span>boost { <span class="keyword">namespace </span>geometry
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||
<a name="l00067"></a>00067 {
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<a name="l00068"></a>00068
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<a name="l00069"></a>00069 <span class="preprocessor">#ifndef DOXYGEN_NO_DETAIL</span>
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<a name="l00070"></a>00070 <span class="preprocessor"></span><span class="keyword">namespace </span>detail { <span class="keyword">namespace </span><a class="code" href="group__within.html#ge8d7fe4e3391e7e0cadf14cc23b7cec1" title="Within, examine if a geometry is within another geometry.">within</a> {
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||
<a name="l00071"></a>00071
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||
<a name="l00072"></a>00072
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||
<a name="l00078"></a>00078 <span class="keyword">template</span>
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||
<a name="l00079"></a>00079 <
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||
<a name="l00080"></a>00080 <span class="keyword">typename</span> Point,
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||
<a name="l00081"></a>00081 <span class="keyword">typename</span> Box,
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||
<a name="l00082"></a>00082 <span class="keyword">typename</span> Strategy,
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||
<a name="l00083"></a>00083 std::size_t Dimension,
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||
<a name="l00084"></a>00084 std::size_t DimensionCount
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||
<a name="l00085"></a>00085 >
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||
<a name="l00086"></a>00086 <span class="keyword">struct </span>point_in_box
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||
<a name="l00087"></a>00087 {
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||
<a name="l00088"></a>00088 <span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">bool</span> apply(Point <span class="keyword">const</span>& p, Box <span class="keyword">const</span>& b, Strategy <span class="keyword">const</span>& s)
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||
<a name="l00089"></a>00089 {
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||
<a name="l00090"></a>00090 assert_dimension_equal<Point, Box>();
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||
<a name="l00091"></a>00091
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||
<a name="l00092"></a>00092 <span class="keywordflow">if</span> (get<Dimension>(p) <= get<min_corner, Dimension>(b)
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||
<a name="l00093"></a>00093 || get<Dimension>(p) >= get<max_corner, Dimension>(b))
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||
<a name="l00094"></a>00094 {
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||
<a name="l00095"></a>00095 <span class="keywordflow">return</span> <span class="keyword">false</span>;
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||
<a name="l00096"></a>00096 }
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||
<a name="l00097"></a>00097
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||
<a name="l00098"></a>00098 <span class="keywordflow">return</span> point_in_box
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||
<a name="l00099"></a>00099 <
|
||
<a name="l00100"></a>00100 Point,
|
||
<a name="l00101"></a>00101 Box,
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||
<a name="l00102"></a>00102 Strategy,
|
||
<a name="l00103"></a>00103 Dimension + 1,
|
||
<a name="l00104"></a>00104 DimensionCount
|
||
<a name="l00105"></a>00105 >::apply(p, b, s);
|
||
<a name="l00106"></a>00106 }
|
||
<a name="l00107"></a>00107 };
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||
<a name="l00108"></a>00108
|
||
<a name="l00109"></a>00109 <span class="keyword">template</span>
|
||
<a name="l00110"></a>00110 <
|
||
<a name="l00111"></a>00111 <span class="keyword">typename</span> Point,
|
||
<a name="l00112"></a>00112 <span class="keyword">typename</span> Box,
|
||
<a name="l00113"></a>00113 <span class="keyword">typename</span> Strategy,
|
||
<a name="l00114"></a>00114 std::size_t DimensionCount
|
||
<a name="l00115"></a>00115 >
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||
<a name="l00116"></a>00116 <span class="keyword">struct </span>point_in_box<Point, Box, Strategy, DimensionCount, DimensionCount>
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||
<a name="l00117"></a>00117 {
|
||
<a name="l00118"></a>00118 <span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">bool</span> apply(Point <span class="keyword">const</span>& , Box <span class="keyword">const</span>& , Strategy <span class="keyword">const</span>& )
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||
<a name="l00119"></a>00119 {
|
||
<a name="l00120"></a>00120 <span class="keywordflow">return</span> <span class="keyword">true</span>;
|
||
<a name="l00121"></a>00121 }
|
||
<a name="l00122"></a>00122 };
|
||
<a name="l00123"></a>00123
|
||
<a name="l00124"></a>00124
|
||
<a name="l00125"></a>00125 <span class="keyword">template</span>
|
||
<a name="l00126"></a>00126 <
|
||
<a name="l00127"></a>00127 <span class="keyword">typename</span> Box1,
|
||
<a name="l00128"></a>00128 <span class="keyword">typename</span> Box2,
|
||
<a name="l00129"></a>00129 <span class="keyword">typename</span> Strategy,
|
||
<a name="l00130"></a>00130 std::size_t Dimension,
|
||
<a name="l00131"></a>00131 std::size_t DimensionCount
|
||
<a name="l00132"></a>00132 >
|
||
<a name="l00133"></a>00133 <span class="keyword">struct </span>box_in_box
|
||
<a name="l00134"></a>00134 {
|
||
<a name="l00135"></a>00135 <span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">bool</span> apply(Box1 <span class="keyword">const</span>& b1, Box2 <span class="keyword">const</span>& b2, Strategy <span class="keyword">const</span>& s)
|
||
<a name="l00136"></a>00136 {
|
||
<a name="l00137"></a>00137 assert_dimension_equal<Box1, Box2>();
|
||
<a name="l00138"></a>00138
|
||
<a name="l00139"></a>00139 <span class="keywordflow">if</span> (get<min_corner, Dimension>(b1) <= get<min_corner, Dimension>(b2)
|
||
<a name="l00140"></a>00140 || get<max_corner, Dimension>(b1) >= get<max_corner, Dimension>(b2))
|
||
<a name="l00141"></a>00141 {
|
||
<a name="l00142"></a>00142 <span class="keywordflow">return</span> <span class="keyword">false</span>;
|
||
<a name="l00143"></a>00143 }
|
||
<a name="l00144"></a>00144
|
||
<a name="l00145"></a>00145 <span class="keywordflow">return</span> box_in_box
|
||
<a name="l00146"></a>00146 <
|
||
<a name="l00147"></a>00147 Box1,
|
||
<a name="l00148"></a>00148 Box2,
|
||
<a name="l00149"></a>00149 Strategy,
|
||
<a name="l00150"></a>00150 Dimension + 1,
|
||
<a name="l00151"></a>00151 DimensionCount
|
||
<a name="l00152"></a>00152 >::apply(b1, b2, s);
|
||
<a name="l00153"></a>00153 }
|
||
<a name="l00154"></a>00154 };
|
||
<a name="l00155"></a>00155
|
||
<a name="l00156"></a>00156 <span class="keyword">template</span>
|
||
<a name="l00157"></a>00157 <
|
||
<a name="l00158"></a>00158 <span class="keyword">typename</span> Box1,
|
||
<a name="l00159"></a>00159 <span class="keyword">typename</span> Box2,
|
||
<a name="l00160"></a>00160 <span class="keyword">typename</span> Strategy,
|
||
<a name="l00161"></a>00161 std::size_t DimensionCount
|
||
<a name="l00162"></a>00162 >
|
||
<a name="l00163"></a>00163 <span class="keyword">struct </span>box_in_box<Box1, Box2, Strategy, DimensionCount, DimensionCount>
|
||
<a name="l00164"></a>00164 {
|
||
<a name="l00165"></a>00165 <span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">bool</span> apply(Box1 <span class="keyword">const</span>& , Box2 <span class="keyword">const</span>& , Strategy <span class="keyword">const</span>&)
|
||
<a name="l00166"></a>00166 {
|
||
<a name="l00167"></a>00167 <span class="keywordflow">return</span> <span class="keyword">true</span>;
|
||
<a name="l00168"></a>00168 }
|
||
<a name="l00169"></a>00169 };
|
||
<a name="l00170"></a>00170
|
||
<a name="l00171"></a>00171
|
||
<a name="l00172"></a>00172 <span class="keyword">template</span><<span class="keyword">typename</span> Po<span class="keywordtype">int</span>, <span class="keyword">typename</span> Ring, <span class="keyword">typename</span> Strategy>
|
||
<a name="l00173"></a>00173 <span class="keyword">struct </span>point_in_ring
|
||
<a name="l00174"></a>00174 {
|
||
<a name="l00175"></a>00175 BOOST_CONCEPT_ASSERT( (geometry::concept::WithinStrategy<Strategy>) );
|
||
<a name="l00176"></a>00176
|
||
<a name="l00177"></a>00177 <span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">bool</span> apply(Point <span class="keyword">const</span>& point, Ring <span class="keyword">const</span>& ring,
|
||
<a name="l00178"></a>00178 Strategy <span class="keyword">const</span>& strategy)
|
||
<a name="l00179"></a>00179 {
|
||
<a name="l00180"></a>00180 <span class="keywordflow">if</span> (boost::size(ring) < 4)
|
||
<a name="l00181"></a>00181 {
|
||
<a name="l00182"></a>00182 <span class="keywordflow">return</span> <span class="keyword">false</span>;
|
||
<a name="l00183"></a>00183 }
|
||
<a name="l00184"></a>00184
|
||
<a name="l00185"></a>00185 <span class="keyword">typedef</span> <span class="keyword">typename</span> boost::range_const_iterator<Ring>::type iterator_type;
|
||
<a name="l00186"></a>00186
|
||
<a name="l00187"></a>00187 <span class="keyword">typename</span> Strategy::state_type state;
|
||
<a name="l00188"></a>00188
|
||
<a name="l00189"></a>00189 iterator_type it = boost::begin(ring);
|
||
<a name="l00190"></a>00190 <span class="keywordflow">for</span> (iterator_type previous = it++;
|
||
<a name="l00191"></a>00191 it != boost::end(ring);
|
||
<a name="l00192"></a>00192 previous = it++)
|
||
<a name="l00193"></a>00193 {
|
||
<a name="l00194"></a>00194 <span class="keywordflow">if</span> (! strategy.apply(point, *previous, *it, state))
|
||
<a name="l00195"></a>00195 {
|
||
<a name="l00196"></a>00196 <span class="keywordflow">return</span> <span class="keyword">false</span>;
|
||
<a name="l00197"></a>00197 }
|
||
<a name="l00198"></a>00198 }
|
||
<a name="l00199"></a>00199 <span class="keywordflow">return</span> strategy.result(state);
|
||
<a name="l00200"></a>00200 }
|
||
<a name="l00201"></a>00201 };
|
||
<a name="l00202"></a>00202
|
||
<a name="l00203"></a>00203 <span class="comment">// Polygon: in exterior ring, and if so, not within interior ring(s)</span>
|
||
<a name="l00204"></a>00204 <span class="keyword">template</span><<span class="keyword">typename</span> Po<span class="keywordtype">int</span>, <span class="keyword">typename</span> Polygon, <span class="keyword">typename</span> Strategy>
|
||
<a name="l00205"></a>00205 <span class="keyword">struct </span>point_in_polygon
|
||
<a name="l00206"></a>00206 {
|
||
<a name="l00207"></a>00207 BOOST_CONCEPT_ASSERT( (geometry::concept::WithinStrategy<Strategy>) );
|
||
<a name="l00208"></a>00208
|
||
<a name="l00209"></a>00209 <span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">bool</span> apply(Point <span class="keyword">const</span>& point, Polygon <span class="keyword">const</span>& poly,
|
||
<a name="l00210"></a>00210 Strategy <span class="keyword">const</span>& strategy)
|
||
<a name="l00211"></a>00211 {
|
||
<a name="l00212"></a>00212
|
||
<a name="l00213"></a>00213 <span class="keyword">typedef</span> point_in_ring
|
||
<a name="l00214"></a>00214 <
|
||
<a name="l00215"></a>00215 Point,
|
||
<a name="l00216"></a>00216 <span class="keyword">typename</span> ring_type<Polygon>::type,
|
||
<a name="l00217"></a>00217 Strategy
|
||
<a name="l00218"></a>00218 > per_ring;
|
||
<a name="l00219"></a>00219
|
||
<a name="l00220"></a>00220 <span class="keywordflow">if</span> (per_ring::apply(point, <a class="code" href="group__access.html#gd96ba07cd3c6c3216bd5ab69adc9ccb5" title="Function to get the exterior_ring ring of a polygon.">exterior_ring</a>(poly), strategy))
|
||
<a name="l00221"></a>00221 {
|
||
<a name="l00222"></a>00222
|
||
<a name="l00223"></a>00223 <span class="keywordflow">for</span> (<span class="keyword">typename</span> boost::range_const_iterator
|
||
<a name="l00224"></a>00224 <
|
||
<a name="l00225"></a>00225 <span class="keyword">typename</span> interior_type<Polygon>::type
|
||
<a name="l00226"></a>00226 >::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="l00227"></a>00227 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="l00228"></a>00228 ++it)
|
||
<a name="l00229"></a>00229 {
|
||
<a name="l00230"></a>00230 <span class="keywordflow">if</span> (per_ring::apply(point, *it, strategy))
|
||
<a name="l00231"></a>00231 {
|
||
<a name="l00232"></a>00232 <span class="keywordflow">return</span> <span class="keyword">false</span>;
|
||
<a name="l00233"></a>00233 }
|
||
<a name="l00234"></a>00234 }
|
||
<a name="l00235"></a>00235 <span class="keywordflow">return</span> <span class="keyword">true</span>;
|
||
<a name="l00236"></a>00236 }
|
||
<a name="l00237"></a>00237 <span class="keywordflow">return</span> <span class="keyword">false</span>;
|
||
<a name="l00238"></a>00238 }
|
||
<a name="l00239"></a>00239 };
|
||
<a name="l00240"></a>00240
|
||
<a name="l00241"></a>00241 }} <span class="comment">// namespace detail::within</span>
|
||
<a name="l00242"></a>00242 <span class="preprocessor">#endif // DOXYGEN_NO_DETAIL</span>
|
||
<a name="l00243"></a>00243 <span class="preprocessor"></span>
|
||
<a name="l00244"></a>00244
|
||
<a name="l00245"></a>00245 <span class="preprocessor">#ifndef DOXYGEN_NO_DISPATCH</span>
|
||
<a name="l00246"></a>00246 <span class="preprocessor"></span><span class="keyword">namespace </span>dispatch
|
||
<a name="l00247"></a>00247 {
|
||
<a name="l00248"></a>00248
|
||
<a name="l00249"></a>00249 <span class="keyword">template</span>
|
||
<a name="l00250"></a>00250 <
|
||
<a name="l00251"></a>00251 <span class="keyword">typename</span> Tag1,
|
||
<a name="l00252"></a>00252 <span class="keyword">typename</span> Tag2,
|
||
<a name="l00253"></a>00253 <span class="keyword">typename</span> Geometry1,
|
||
<a name="l00254"></a>00254 <span class="keyword">typename</span> Geometry2,
|
||
<a name="l00255"></a>00255 <span class="keyword">typename</span> Strategy
|
||
<a name="l00256"></a>00256 >
|
||
<a name="l00257"></a>00257 <span class="keyword">struct </span><a class="code" href="group__within.html#ge8d7fe4e3391e7e0cadf14cc23b7cec1" title="Within, examine if a geometry is within another geometry.">within</a>
|
||
<a name="l00258"></a>00258 {};
|
||
<a name="l00259"></a>00259
|
||
<a name="l00260"></a>00260
|
||
<a name="l00261"></a>00261 <span class="keyword">template</span> <<span class="keyword">typename</span> Po<span class="keywordtype">int</span>, <span class="keyword">typename</span> Box, <span class="keyword">typename</span> Strategy>
|
||
<a name="l00262"></a>00262 <span class="keyword">struct </span><a class="code" href="group__within.html#ge8d7fe4e3391e7e0cadf14cc23b7cec1" title="Within, examine if a geometry is within another geometry.">within</a><point_tag, box_tag, Point, Box, Strategy>
|
||
<a name="l00263"></a>00263 : detail::<a class="code" href="group__within.html#ge8d7fe4e3391e7e0cadf14cc23b7cec1" title="Within, examine if a geometry is within another geometry.">within</a>::point_in_box
|
||
<a name="l00264"></a>00264 <
|
||
<a name="l00265"></a>00265 Point,
|
||
<a name="l00266"></a>00266 Box,
|
||
<a name="l00267"></a>00267 Strategy,
|
||
<a name="l00268"></a>00268 0,
|
||
<a name="l00269"></a>00269 dimension<Point>::type::value
|
||
<a name="l00270"></a>00270 >
|
||
<a name="l00271"></a>00271 {};
|
||
<a name="l00272"></a>00272
|
||
<a name="l00273"></a>00273 <span class="keyword">template</span> <<span class="keyword">typename</span> Box1, <span class="keyword">typename</span> Box2, <span class="keyword">typename</span> Strategy>
|
||
<a name="l00274"></a>00274 <span class="keyword">struct </span><a class="code" href="group__within.html#ge8d7fe4e3391e7e0cadf14cc23b7cec1" title="Within, examine if a geometry is within another geometry.">within</a><box_tag, box_tag, Box1, Box2, Strategy>
|
||
<a name="l00275"></a>00275 : detail::<a class="code" href="group__within.html#ge8d7fe4e3391e7e0cadf14cc23b7cec1" title="Within, examine if a geometry is within another geometry.">within</a>::box_in_box
|
||
<a name="l00276"></a>00276 <
|
||
<a name="l00277"></a>00277 Box1,
|
||
<a name="l00278"></a>00278 Box2,
|
||
<a name="l00279"></a>00279 Strategy,
|
||
<a name="l00280"></a>00280 0,
|
||
<a name="l00281"></a>00281 dimension<Box1>::type::value
|
||
<a name="l00282"></a>00282 >
|
||
<a name="l00283"></a>00283 {};
|
||
<a name="l00284"></a>00284
|
||
<a name="l00285"></a>00285
|
||
<a name="l00286"></a>00286
|
||
<a name="l00287"></a>00287 <span class="keyword">template</span> <<span class="keyword">typename</span> Po<span class="keywordtype">int</span>, <span class="keyword">typename</span> Ring, <span class="keyword">typename</span> Strategy>
|
||
<a name="l00288"></a>00288 <span class="keyword">struct </span><a class="code" href="group__within.html#ge8d7fe4e3391e7e0cadf14cc23b7cec1" title="Within, examine if a geometry is within another geometry.">within</a><point_tag, ring_tag, Point, Ring, Strategy>
|
||
<a name="l00289"></a>00289 : detail::<a class="code" href="group__within.html#ge8d7fe4e3391e7e0cadf14cc23b7cec1" title="Within, examine if a geometry is within another geometry.">within</a>::point_in_ring
|
||
<a name="l00290"></a>00290 <Point, Ring, Strategy>
|
||
<a name="l00291"></a>00291 {};
|
||
<a name="l00292"></a>00292
|
||
<a name="l00293"></a>00293 <span class="keyword">template</span> <<span class="keyword">typename</span> Po<span class="keywordtype">int</span>, <span class="keyword">typename</span> Polygon, <span class="keyword">typename</span> Strategy>
|
||
<a name="l00294"></a>00294 <span class="keyword">struct </span><a class="code" href="group__within.html#ge8d7fe4e3391e7e0cadf14cc23b7cec1" title="Within, examine if a geometry is within another geometry.">within</a><point_tag, polygon_tag, Point, Polygon, Strategy>
|
||
<a name="l00295"></a>00295 : detail::<a class="code" href="group__within.html#ge8d7fe4e3391e7e0cadf14cc23b7cec1" title="Within, examine if a geometry is within another geometry.">within</a>::point_in_polygon
|
||
<a name="l00296"></a>00296 <Point, Polygon, Strategy>
|
||
<a name="l00297"></a>00297 {};
|
||
<a name="l00298"></a>00298
|
||
<a name="l00299"></a>00299 } <span class="comment">// namespace dispatch</span>
|
||
<a name="l00300"></a>00300 <span class="preprocessor">#endif // DOXYGEN_NO_DISPATCH</span>
|
||
<a name="l00301"></a>00301 <span class="preprocessor"></span>
|
||
<a name="l00302"></a>00302
|
||
<a name="l00313"></a>00313 <span class="keyword">template</span><<span class="keyword">typename</span> Geometry1, <span class="keyword">typename</span> Geometry2>
|
||
<a name="l00314"></a><a class="code" href="group__within.html#ge8d7fe4e3391e7e0cadf14cc23b7cec1">00314</a> <span class="keyword">inline</span> <span class="keywordtype">bool</span> <a class="code" href="group__within.html#ge8d7fe4e3391e7e0cadf14cc23b7cec1" title="Within, examine if a geometry is within another geometry.">within</a>(Geometry1 <span class="keyword">const</span>& geometry1, Geometry2 <span class="keyword">const</span>& geometry2)
|
||
<a name="l00315"></a>00315 {
|
||
<a name="l00316"></a>00316 concept::check<const Geometry1>();
|
||
<a name="l00317"></a>00317 concept::check<const Geometry2>();
|
||
<a name="l00318"></a>00318
|
||
<a name="l00319"></a>00319 <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<Geometry1>::type</a> point_type1;
|
||
<a name="l00320"></a>00320 <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<Geometry2>::type</a> point_type2;
|
||
<a name="l00321"></a>00321
|
||
<a name="l00322"></a>00322 <span class="keyword">typedef</span> <span class="keyword">typename</span> <a class="code" href="structboost_1_1geometry_1_1strategy__within.html" title="Traits class binding a within determination strategy to a coordinate system.">strategy_within</a>
|
||
<a name="l00323"></a>00323 <
|
||
<a name="l00324"></a>00324 <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_type1>::type</a>,
|
||
<a name="l00325"></a>00325 <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_type2>::type</a>,
|
||
<a name="l00326"></a>00326 point_type1,
|
||
<a name="l00327"></a>00327 point_type2
|
||
<a name="l00328"></a>00328 >::type strategy_type;
|
||
<a name="l00329"></a>00329
|
||
<a name="l00330"></a>00330 <span class="keywordflow">return</span> <a class="code" href="group__within.html#ge8d7fe4e3391e7e0cadf14cc23b7cec1" title="Within, examine if a geometry is within another geometry.">dispatch::within</a>
|
||
<a name="l00331"></a>00331 <
|
||
<a name="l00332"></a>00332 <span class="keyword">typename</span> <a class="code" href="structboost_1_1geometry_1_1geometry__not__recognized__tag.html" title="&quot;default&quot; tag">tag<Geometry1>::type</a>,
|
||
<a name="l00333"></a>00333 <span class="keyword">typename</span> <a class="code" href="structboost_1_1geometry_1_1geometry__not__recognized__tag.html" title="&quot;default&quot; tag">tag<Geometry2>::type</a>,
|
||
<a name="l00334"></a>00334 Geometry1,
|
||
<a name="l00335"></a>00335 Geometry2,
|
||
<a name="l00336"></a>00336 strategy_type
|
||
<a name="l00337"></a>00337 >::apply(geometry1, geometry2, strategy_type());
|
||
<a name="l00338"></a>00338 }
|
||
<a name="l00339"></a>00339
|
||
<a name="l00350"></a>00350 <span class="keyword">template</span><<span class="keyword">typename</span> Geometry1, <span class="keyword">typename</span> Geometry2, <span class="keyword">typename</span> Strategy>
|
||
<a name="l00351"></a><a class="code" href="group__within.html#g9a06b4c46fcf0a8443c4e3958073fa67">00351</a> <span class="keyword">inline</span> <span class="keywordtype">bool</span> <a class="code" href="group__within.html#ge8d7fe4e3391e7e0cadf14cc23b7cec1" title="Within, examine if a geometry is within another geometry.">within</a>(Geometry1 <span class="keyword">const</span>& geometry1, Geometry2 <span class="keyword">const</span>& geometry2,
|
||
<a name="l00352"></a>00352 Strategy <span class="keyword">const</span>& strategy)
|
||
<a name="l00353"></a>00353 {
|
||
<a name="l00354"></a>00354 <span class="comment">// Always assume a point-in-polygon strategy here.</span>
|
||
<a name="l00355"></a>00355 <span class="comment">// Because for point-in-box, it makes no sense to specify one.</span>
|
||
<a name="l00356"></a>00356 BOOST_CONCEPT_ASSERT( (<a class="code" href="classboost_1_1geometry_1_1concept_1_1_within_strategy.html" title="Checks strategy for within (point-in-polygon).">geometry::concept::WithinStrategy<Strategy></a>) );
|
||
<a name="l00357"></a>00357
|
||
<a name="l00358"></a>00358 concept::check<const Geometry1>();
|
||
<a name="l00359"></a>00359 concept::check<const Geometry2>();
|
||
<a name="l00360"></a>00360
|
||
<a name="l00361"></a>00361 <span class="keywordflow">return</span> <a class="code" href="group__within.html#ge8d7fe4e3391e7e0cadf14cc23b7cec1" title="Within, examine if a geometry is within another geometry.">dispatch::within</a>
|
||
<a name="l00362"></a>00362 <
|
||
<a name="l00363"></a>00363 <span class="keyword">typename</span> <a class="code" href="structboost_1_1geometry_1_1geometry__not__recognized__tag.html" title="&quot;default&quot; tag">tag<Geometry1>::type</a>,
|
||
<a name="l00364"></a>00364 <span class="keyword">typename</span> <a class="code" href="structboost_1_1geometry_1_1geometry__not__recognized__tag.html" title="&quot;default&quot; tag">tag<Geometry2>::type</a>,
|
||
<a name="l00365"></a>00365 Geometry1,
|
||
<a name="l00366"></a>00366 Geometry2,
|
||
<a name="l00367"></a>00367 Strategy
|
||
<a name="l00368"></a>00368 >::apply(geometry1, geometry2, strategy);
|
||
<a name="l00369"></a>00369 }
|
||
<a name="l00370"></a>00370
|
||
<a name="l00371"></a>00371 }} <span class="comment">// namespace boost::geometry</span>
|
||
<a name="l00372"></a>00372
|
||
<a name="l00373"></a>00373 <span class="preprocessor">#endif // BOOST_GEOMETRY_ALGORITHMS_WITHIN_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>
|