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<h1>boost/geometry/algorithms/selected.hpp</h1><a href="selected_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>
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<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_SELECTED_HPP</span>
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<a name="l00010"></a>00010 <span class="preprocessor"></span><span class="preprocessor">#define BOOST_GEOMETRY_ALGORITHMS_SELECTED_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 <cmath></span>
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<a name="l00013"></a>00013 <span class="preprocessor">#include <cstddef></span>
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<a name="l00014"></a>00014
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<a name="l00015"></a>00015 <span class="preprocessor">#include <boost/range/functions.hpp></span>
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<a name="l00016"></a>00016 <span class="preprocessor">#include <boost/range/metafunctions.hpp></span>
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<a name="l00017"></a>00017
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<a name="l00018"></a>00018 <span class="preprocessor">#include <<a class="code" href="strategies_8hpp.html">boost/geometry/strategies/strategies.hpp</a>></span>
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<a name="l00019"></a>00019
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||
<a name="l00020"></a>00020 <span class="preprocessor">#include <<a class="code" href="algorithms_2within_8hpp.html">boost/geometry/algorithms/within.hpp</a>></span>
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<a name="l00021"></a>00021 <span class="preprocessor">#include <<a class="code" href="access_8hpp.html">boost/geometry/core/access.hpp</a>></span>
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<a name="l00022"></a>00022 <span class="preprocessor">#include <<a class="code" href="core_2topological__dimension_8hpp.html">boost/geometry/core/topological_dimension.hpp</a>></span>
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<a name="l00023"></a>00023
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<a name="l00024"></a>00024 <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="l00025"></a>00025
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<a name="l00026"></a>00026 <span class="preprocessor">#include <<a class="code" href="select__coordinate__type_8hpp.html">boost/geometry/util/select_coordinate_type.hpp</a>></span>
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<a name="l00027"></a>00027
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<a name="l00041"></a>00041 <span class="keyword">namespace </span>boost { <span class="keyword">namespace </span>geometry
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<a name="l00042"></a>00042 {
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<a name="l00043"></a>00043
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<a name="l00047"></a>00047 <span class="preprocessor">#ifndef DOXYGEN_NO_DETAIL</span>
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||
<a name="l00048"></a>00048 <span class="preprocessor"></span><span class="keyword">namespace </span>detail { <span class="keyword">namespace </span><a class="code" href="group__selected.html#gfa35b0560d5c1296cc974b3f477a9f5c" title="Checks if one geometry is selected by a point lying within or in the neighborhood...">selected</a> {
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||
<a name="l00049"></a>00049
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||
<a name="l00055"></a>00055 <span class="keyword">template</span> <<span class="keyword">typename</span> P1, <span class="keyword">typename</span> P2, <span class="keyword">typename</span> T, std::<span class="keywordtype">size_t</span> D, std::<span class="keywordtype">size_t</span> N>
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||
<a name="l00056"></a>00056 <span class="keyword">struct </span>differences_loop
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||
<a name="l00057"></a>00057 {
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||
<a name="l00058"></a>00058 <span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">bool</span> apply(P1 <span class="keyword">const</span>& p1, P2 <span class="keyword">const</span>& p2, T <span class="keyword">const</span>& <a class="code" href="group__distance.html#g8fb8022d64a75b24c80a64ba46ec4738" title="Calculate distance between two geometries with a specified strategy.">distance</a>, T& sum)
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||
<a name="l00059"></a>00059 {
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<a name="l00060"></a>00060 <span class="keyword">typedef</span> <span class="keyword">typename</span> select_coordinate_type<P1, P2>::type coordinate_type;
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<a name="l00061"></a>00061
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||
<a name="l00062"></a>00062 coordinate_type <span class="keyword">const</span> c1 = boost::numeric_cast<coordinate_type>(get<D>(p1));
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||
<a name="l00063"></a>00063 coordinate_type <span class="keyword">const</span> c2 = boost::numeric_cast<coordinate_type>(get<D>(p2));
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||
<a name="l00064"></a>00064
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||
<a name="l00065"></a>00065 T <span class="keyword">const</span> d = std::abs(c1 - c2);
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<a name="l00066"></a>00066 <span class="keywordflow">if</span> (d > <a class="code" href="group__distance.html#g8fb8022d64a75b24c80a64ba46ec4738" title="Calculate distance between two geometries with a specified strategy.">distance</a>)
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||
<a name="l00067"></a>00067 {
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||
<a name="l00068"></a>00068 <span class="keywordflow">return</span> <span class="keyword">false</span>;
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||
<a name="l00069"></a>00069 }
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||
<a name="l00070"></a>00070 sum += d * d;
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||
<a name="l00071"></a>00071 <span class="keywordflow">return</span> differences_loop<P1, P2, T, D + 1, N>::apply(p1, p2, <a class="code" href="group__distance.html#g8fb8022d64a75b24c80a64ba46ec4738" title="Calculate distance between two geometries with a specified strategy.">distance</a>, sum);
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||
<a name="l00072"></a>00072 }
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||
<a name="l00073"></a>00073 };
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||
<a name="l00074"></a>00074
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||
<a name="l00075"></a>00075 <span class="keyword">template</span> <<span class="keyword">typename</span> P1, <span class="keyword">typename</span> P2, <span class="keyword">typename</span> T, std::<span class="keywordtype">size_t</span> N>
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||
<a name="l00076"></a>00076 <span class="keyword">struct </span>differences_loop<P1, P2, T, N, N>
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||
<a name="l00077"></a>00077 {
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||
<a name="l00078"></a>00078 <span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">bool</span> apply(P1 <span class="keyword">const</span>&, P2 <span class="keyword">const</span>&, T <span class="keyword">const</span>&, T&)
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||
<a name="l00079"></a>00079 {
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||
<a name="l00080"></a>00080 <span class="keywordflow">return</span> <span class="keyword">true</span>;
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||
<a name="l00081"></a>00081 }
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||
<a name="l00082"></a>00082 };
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||
<a name="l00083"></a>00083
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<a name="l00084"></a>00084
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||
<a name="l00085"></a>00085
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||
<a name="l00086"></a>00086 <span class="keyword">template</span> <<span class="keyword">typename</span> PS, <span class="keyword">typename</span> P, <span class="keyword">typename</span> T, std::<span class="keywordtype">size_t</span> D, std::<span class="keywordtype">size_t</span> N>
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||
<a name="l00087"></a>00087 <span class="keyword">struct </span>outside_loop
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||
<a name="l00088"></a>00088 {
|
||
<a name="l00089"></a>00089 <span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">bool</span> apply(PS <span class="keyword">const</span>& seg1, PS <span class="keyword">const</span>& seg2, P <span class="keyword">const</span>& point, T <span class="keyword">const</span>& <a class="code" href="group__distance.html#g8fb8022d64a75b24c80a64ba46ec4738" title="Calculate distance between two geometries with a specified strategy.">distance</a>)
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||
<a name="l00090"></a>00090 {
|
||
<a name="l00091"></a>00091 <span class="keyword">typedef</span> <span class="keyword">typename</span> select_coordinate_type<PS, P>::type coordinate_type;
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||
<a name="l00092"></a>00092
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||
<a name="l00093"></a>00093 coordinate_type <span class="keyword">const</span> v = boost::numeric_cast<coordinate_type>(get<D>(point));
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||
<a name="l00094"></a>00094 coordinate_type <span class="keyword">const</span> s1 = get<D>(seg1);
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||
<a name="l00095"></a>00095 coordinate_type <span class="keyword">const</span> s2 = get<D>(seg2);
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||
<a name="l00096"></a>00096
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||
<a name="l00097"></a>00097 <span class="comment">// Out of reach if left/bottom or right/top of both points making up the segment</span>
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||
<a name="l00098"></a>00098 <span class="comment">// I know and currently accept that these comparisons/calculations are done twice per point</span>
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||
<a name="l00099"></a>00099
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||
<a name="l00100"></a>00100 <span class="keywordflow">if</span> ((v < s1 - <a class="code" href="group__distance.html#g8fb8022d64a75b24c80a64ba46ec4738" title="Calculate distance between two geometries with a specified strategy.">distance</a> && v < s2 - <a class="code" href="group__distance.html#g8fb8022d64a75b24c80a64ba46ec4738" title="Calculate distance between two geometries with a specified strategy.">distance</a>) || (v > s1 + <a class="code" href="group__distance.html#g8fb8022d64a75b24c80a64ba46ec4738" title="Calculate distance between two geometries with a specified strategy.">distance</a> && v > s2 + <a class="code" href="group__distance.html#g8fb8022d64a75b24c80a64ba46ec4738" title="Calculate distance between two geometries with a specified strategy.">distance</a>))
|
||
<a name="l00101"></a>00101 {
|
||
<a name="l00102"></a>00102 <span class="keywordflow">return</span> <span class="keyword">true</span>;
|
||
<a name="l00103"></a>00103 }
|
||
<a name="l00104"></a>00104 <span class="keywordflow">return</span> outside_loop<PS, P, T, D + 1, N>::apply(seg1, seg2, point, <a class="code" href="group__distance.html#g8fb8022d64a75b24c80a64ba46ec4738" title="Calculate distance between two geometries with a specified strategy.">distance</a>);
|
||
<a name="l00105"></a>00105 }
|
||
<a name="l00106"></a>00106 };
|
||
<a name="l00107"></a>00107
|
||
<a name="l00108"></a>00108 <span class="keyword">template</span> <<span class="keyword">typename</span> PS, <span class="keyword">typename</span> P, <span class="keyword">typename</span> T, std::<span class="keywordtype">size_t</span> N>
|
||
<a name="l00109"></a>00109 <span class="keyword">struct </span>outside_loop<PS, P, T, N, N>
|
||
<a name="l00110"></a>00110 {
|
||
<a name="l00111"></a>00111 <span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">bool</span> apply(PS <span class="keyword">const</span>&, PS <span class="keyword">const</span>&, P <span class="keyword">const</span>&, T <span class="keyword">const</span>&)
|
||
<a name="l00112"></a>00112 {
|
||
<a name="l00113"></a>00113 <span class="keywordflow">return</span> <span class="keyword">false</span>;
|
||
<a name="l00114"></a>00114 }
|
||
<a name="l00115"></a>00115 };
|
||
<a name="l00116"></a>00116
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||
<a name="l00117"></a>00117
|
||
<a name="l00118"></a>00118 <span class="keyword">template</span> <<span class="keyword">typename</span> P1, <span class="keyword">typename</span> P2, <span class="keyword">typename</span> T>
|
||
<a name="l00119"></a>00119 <span class="keyword">struct </span>close_to_point
|
||
<a name="l00120"></a>00120 {
|
||
<a name="l00121"></a>00121 <span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">bool</span> apply(P1 <span class="keyword">const</span>& point, P1 <span class="keyword">const</span>& selection_point, T <span class="keyword">const</span>& search_radius)
|
||
<a name="l00122"></a>00122 {
|
||
<a name="l00123"></a>00123 assert_dimension_equal<P1, P2>();
|
||
<a name="l00124"></a>00124
|
||
<a name="l00125"></a>00125 T sum = 0;
|
||
<a name="l00126"></a>00126 <span class="keywordflow">if</span> (differences_loop
|
||
<a name="l00127"></a>00127 <
|
||
<a name="l00128"></a>00128 P1, P2, T, 0, <a class="code" href="classcore__dispatch_1_1dimension.html">dimension<P1>::type::value</a>
|
||
<a name="l00129"></a>00129 >::apply(point, selection_point, search_radius, sum))
|
||
<a name="l00130"></a>00130 {
|
||
<a name="l00131"></a>00131 <span class="keywordflow">return</span> sum <= search_radius * search_radius;
|
||
<a name="l00132"></a>00132 }
|
||
<a name="l00133"></a>00133
|
||
<a name="l00134"></a>00134 <span class="keywordflow">return</span> <span class="keyword">false</span>;
|
||
<a name="l00135"></a>00135 }
|
||
<a name="l00136"></a>00136 };
|
||
<a name="l00137"></a>00137
|
||
<a name="l00138"></a>00138 <span class="keyword">template</span> <<span class="keyword">typename</span> PS, <span class="keyword">typename</span> P, <span class="keyword">typename</span> T>
|
||
<a name="l00139"></a>00139 <span class="keyword">struct </span>close_to_segment
|
||
<a name="l00140"></a>00140 {
|
||
<a name="l00141"></a>00141 <span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">bool</span> apply(PS <span class="keyword">const</span>& seg1, PS <span class="keyword">const</span>& seg2, P <span class="keyword">const</span>& selection_point, T <span class="keyword">const</span>& search_radius)
|
||
<a name="l00142"></a>00142 {
|
||
<a name="l00143"></a>00143 assert_dimension_equal<PS, P>();
|
||
<a name="l00144"></a>00144
|
||
<a name="l00145"></a>00145 <span class="keywordflow">if</span> (! outside_loop
|
||
<a name="l00146"></a>00146 <
|
||
<a name="l00147"></a>00147 PS, P, T, 0, <a class="code" href="classcore__dispatch_1_1dimension.html">dimension<P>::type::value</a>
|
||
<a name="l00148"></a>00148 >::apply(seg1, seg2, selection_point, search_radius))
|
||
<a name="l00149"></a>00149 {
|
||
<a name="l00150"></a>00150 <span class="comment">// Not outside, calculate dot product/square distance to segment.</span>
|
||
<a name="l00151"></a>00151 <span class="comment">// Call corresponding strategy</span>
|
||
<a name="l00152"></a>00152 <span class="keyword">typedef</span> <span class="keyword">typename</span> strategy_distance_segment
|
||
<a name="l00153"></a>00153 <
|
||
<a name="l00154"></a>00154 <span class="keyword">typename</span> cs_tag<P>::type,
|
||
<a name="l00155"></a>00155 <span class="keyword">typename</span> cs_tag<PS>::type,
|
||
<a name="l00156"></a>00156 P,
|
||
<a name="l00157"></a>00157 PS
|
||
<a name="l00158"></a>00158 >::type strategy_type;
|
||
<a name="l00159"></a>00159 <span class="keyword">typedef</span> <span class="keyword">typename</span> strategy_type::return_type return_type;
|
||
<a name="l00160"></a>00160
|
||
<a name="l00161"></a>00161 strategy_type strategy;
|
||
<a name="l00162"></a>00162 return_type result = strategy.apply(selection_point, seg1, seg2);
|
||
<a name="l00163"></a>00163 <span class="keywordflow">return</span> result < search_radius;
|
||
<a name="l00164"></a>00164 }
|
||
<a name="l00165"></a>00165
|
||
<a name="l00166"></a>00166 <span class="keywordflow">return</span> <span class="keyword">false</span>;
|
||
<a name="l00167"></a>00167 }
|
||
<a name="l00168"></a>00168 };
|
||
<a name="l00169"></a>00169
|
||
<a name="l00170"></a>00170 <span class="keyword">template</span> <<span class="keyword">typename</span> R, <span class="keyword">typename</span> P, <span class="keyword">typename</span> T>
|
||
<a name="l00171"></a>00171 <span class="keyword">struct </span>close_to_range
|
||
<a name="l00172"></a>00172 {
|
||
<a name="l00173"></a>00173 <span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">bool</span> apply(R <span class="keyword">const</span>& range, P <span class="keyword">const</span>& selection_point, T <span class="keyword">const</span>& search_radius)
|
||
<a name="l00174"></a>00174 {
|
||
<a name="l00175"></a>00175 assert_dimension_equal<R, P>();
|
||
<a name="l00176"></a>00176
|
||
<a name="l00177"></a>00177 std::size_t <span class="keyword">const</span> n = boost::size(range);
|
||
<a name="l00178"></a>00178 <span class="keywordflow">if</span> (n == 0)
|
||
<a name="l00179"></a>00179 {
|
||
<a name="l00180"></a>00180 <span class="comment">// Line with zero points, never close</span>
|
||
<a name="l00181"></a>00181 <span class="keywordflow">return</span> <span class="keyword">false</span>;
|
||
<a name="l00182"></a>00182 }
|
||
<a name="l00183"></a>00183
|
||
<a name="l00184"></a>00184 <span class="keyword">typedef</span> <span class="keyword">typename</span> point_type<R>::type point_type;
|
||
<a name="l00185"></a>00185 <span class="keyword">typedef</span> <span class="keyword">typename</span> boost::range_const_iterator<R>::type iterator_type;
|
||
<a name="l00186"></a>00186
|
||
<a name="l00187"></a>00187 iterator_type it = boost::begin(range);
|
||
<a name="l00188"></a>00188 <span class="keywordflow">if</span> (n == 1)
|
||
<a name="l00189"></a>00189 {
|
||
<a name="l00190"></a>00190 <span class="comment">// Line with one point ==> close to point</span>
|
||
<a name="l00191"></a>00191 <span class="keywordflow">return</span> close_to_point<P, point_type, T>::apply(*it, selection_point, search_radius);
|
||
<a name="l00192"></a>00192 }
|
||
<a name="l00193"></a>00193
|
||
<a name="l00194"></a>00194 iterator_type previous = it++;
|
||
<a name="l00195"></a>00195 <span class="keywordflow">while</span>(it != boost::end(range))
|
||
<a name="l00196"></a>00196 {
|
||
<a name="l00197"></a>00197 <span class="comment">//typedef segment<const point_type> segment_type;</span>
|
||
<a name="l00198"></a>00198 <span class="comment">//segment_type s(*previous, *it);</span>
|
||
<a name="l00199"></a>00199 <span class="keywordflow">if</span> (close_to_segment
|
||
<a name="l00200"></a>00200 <
|
||
<a name="l00201"></a>00201 point_type, P, T
|
||
<a name="l00202"></a>00202 >::apply(*previous, *it, selection_point, search_radius))
|
||
<a name="l00203"></a>00203 {
|
||
<a name="l00204"></a>00204 <span class="keywordflow">return</span> <span class="keyword">true</span>;
|
||
<a name="l00205"></a>00205 }
|
||
<a name="l00206"></a>00206 previous = it++;
|
||
<a name="l00207"></a>00207 }
|
||
<a name="l00208"></a>00208
|
||
<a name="l00209"></a>00209 <span class="keywordflow">return</span> <span class="keyword">false</span>;
|
||
<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> Tag, <span class="keyword">typename</span> G, <span class="keyword">typename</span> P, <span class="keyword">typename</span> T>
|
||
<a name="l00214"></a>00214 <span class="keyword">struct </span>use_within
|
||
<a name="l00215"></a>00215 {
|
||
<a name="l00216"></a>00216 <span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">bool</span> apply(G <span class="keyword">const</span>& geometry, P <span class="keyword">const</span>& selection_point, T <span class="keyword">const</span>& search_radius)
|
||
<a name="l00217"></a>00217 {
|
||
<a name="l00218"></a>00218 <span class="keywordflow">return</span> <a class="code" href="group__within.html#ge8d7fe4e3391e7e0cadf14cc23b7cec1" title="Within, examine if a geometry is within another geometry.">geometry::within</a>(selection_point, geometry);
|
||
<a name="l00219"></a>00219 }
|
||
<a name="l00220"></a>00220 };
|
||
<a name="l00221"></a>00221
|
||
<a name="l00222"></a>00222 }} <span class="comment">// namespace detail::selected</span>
|
||
<a name="l00223"></a>00223 <span class="preprocessor">#endif // DOXYGEN_NO_DETAIL</span>
|
||
<a name="l00224"></a>00224 <span class="preprocessor"></span>
|
||
<a name="l00225"></a>00225
|
||
<a name="l00226"></a>00226 <span class="preprocessor">#ifndef DOXYGEN_NO_DISPATCH</span>
|
||
<a name="l00227"></a>00227 <span class="preprocessor"></span><span class="keyword">namespace </span>dispatch
|
||
<a name="l00228"></a>00228 {
|
||
<a name="l00229"></a>00229
|
||
<a name="l00233"></a>00233 <span class="keyword">template</span> <<span class="keyword">typename</span> Tag, <span class="keyword">typename</span> G, std::<span class="keywordtype">size_t</span> D, <span class="keyword">typename</span> P, <span class="keyword">typename</span> T>
|
||
<a name="l00234"></a>00234 <span class="keyword">struct </span><a class="code" href="group__selected.html#gfa35b0560d5c1296cc974b3f477a9f5c" title="Checks if one geometry is selected by a point lying within or in the neighborhood...">selected</a>
|
||
<a name="l00235"></a>00235 {
|
||
<a name="l00236"></a>00236 };
|
||
<a name="l00237"></a>00237
|
||
<a name="l00238"></a>00238 <span class="keyword">template</span> <<span class="keyword">typename</span> P1, <span class="keyword">typename</span> P2, <span class="keyword">typename</span> T>
|
||
<a name="l00239"></a>00239 <span class="keyword">struct </span><a class="code" href="group__selected.html#gfa35b0560d5c1296cc974b3f477a9f5c" title="Checks if one geometry is selected by a point lying within or in the neighborhood...">selected</a><point_tag, P1, 0, P2, T> : detail::<a class="code" href="group__selected.html#gfa35b0560d5c1296cc974b3f477a9f5c" title="Checks if one geometry is selected by a point lying within or in the neighborhood...">selected</a>::close_to_point<P1, P2, T> { };
|
||
<a name="l00240"></a>00240
|
||
<a name="l00241"></a>00241 <span class="comment">// SEGMENT, TODO HERE (close_to_segment)</span>
|
||
<a name="l00242"></a>00242
|
||
<a name="l00243"></a>00243 <span class="keyword">template</span> <<span class="keyword">typename</span> L, <span class="keyword">typename</span> P, <span class="keyword">typename</span> T>
|
||
<a name="l00244"></a>00244 <span class="keyword">struct </span><a class="code" href="group__selected.html#gfa35b0560d5c1296cc974b3f477a9f5c" title="Checks if one geometry is selected by a point lying within or in the neighborhood...">selected</a><linestring_tag, L, 1, P, T> : detail::<a class="code" href="group__selected.html#gfa35b0560d5c1296cc974b3f477a9f5c" title="Checks if one geometry is selected by a point lying within or in the neighborhood...">selected</a>::close_to_range<L, P, T> { };
|
||
<a name="l00245"></a>00245
|
||
<a name="l00246"></a>00246 <span class="keyword">template</span> <<span class="keyword">typename</span> Tag, <span class="keyword">typename</span> G, <span class="keyword">typename</span> P, <span class="keyword">typename</span> T>
|
||
<a name="l00247"></a>00247 <span class="keyword">struct </span><a class="code" href="group__selected.html#gfa35b0560d5c1296cc974b3f477a9f5c" title="Checks if one geometry is selected by a point lying within or in the neighborhood...">selected</a><Tag, G, 2, P, T> : detail::<a class="code" href="group__selected.html#gfa35b0560d5c1296cc974b3f477a9f5c" title="Checks if one geometry is selected by a point lying within or in the neighborhood...">selected</a>::use_within<Tag, G, P, T> { };
|
||
<a name="l00248"></a>00248
|
||
<a name="l00249"></a>00249 } <span class="comment">// namespace dispatch</span>
|
||
<a name="l00250"></a>00250 <span class="preprocessor">#endif // DOXYGEN_NO_DISPATCH</span>
|
||
<a name="l00251"></a>00251 <span class="preprocessor"></span>
|
||
<a name="l00252"></a>00252
|
||
<a name="l00265"></a>00265 <span class="keyword">template</span><<span class="keyword">typename</span> Geometry, <span class="keyword">typename</span> Po<span class="keywordtype">int</span>, <span class="keyword">typename</span> RadiusType>
|
||
<a name="l00266"></a><a class="code" href="group__selected.html#gfa35b0560d5c1296cc974b3f477a9f5c">00266</a> <span class="keyword">inline</span> <span class="keywordtype">bool</span> <a class="code" href="group__selected.html#gfa35b0560d5c1296cc974b3f477a9f5c" title="Checks if one geometry is selected by a point lying within or in the neighborhood...">selected</a>(Geometry <span class="keyword">const</span>& geometry,
|
||
<a name="l00267"></a>00267 Point <span class="keyword">const</span>& selection_point,
|
||
<a name="l00268"></a>00268 RadiusType <span class="keyword">const</span>& search_radius)
|
||
<a name="l00269"></a>00269 {
|
||
<a name="l00270"></a>00270 concept::check<const Geometry>();
|
||
<a name="l00271"></a>00271 concept::check<const Point>();
|
||
<a name="l00272"></a>00272
|
||
<a name="l00273"></a>00273 <span class="keyword">typedef</span> <a class="code" href="group__selected.html#gfa35b0560d5c1296cc974b3f477a9f5c" title="Checks if one geometry is selected by a point lying within or in the neighborhood...">dispatch::selected</a>
|
||
<a name="l00274"></a>00274 <
|
||
<a name="l00275"></a>00275 <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="l00276"></a>00276 Geometry,
|
||
<a name="l00277"></a>00277 <a class="code" href="structboost_1_1geometry_1_1topological__dimension.html" title="Meta-function returning the topological dimension of a geometry.">topological_dimension<Geometry>::value</a>,
|
||
<a name="l00278"></a>00278 Point,
|
||
<a name="l00279"></a>00279 RadiusType
|
||
<a name="l00280"></a>00280 > selector_type;
|
||
<a name="l00281"></a>00281
|
||
<a name="l00282"></a>00282 <span class="keywordflow">return</span> selector_type::apply(geometry, selection_point, search_radius);
|
||
<a name="l00283"></a>00283 }
|
||
<a name="l00284"></a>00284
|
||
<a name="l00285"></a>00285 }} <span class="comment">// namespace boost::geometry</span>
|
||
<a name="l00286"></a>00286
|
||
<a name="l00287"></a>00287 <span class="preprocessor">#endif // BOOST_GEOMETRY_ALGORITHMS_SELECTED_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>
|