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<h1>boost/geometry/algorithms/overlay/intersection_point.hpp</h1><a href="intersection__point_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_INTERSECTION_POINT_HPP</span>
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<a name="l00010"></a>00010 <span class="preprocessor"></span><span class="preprocessor">#define BOOST_GEOMETRY_ALGORITHMS_INTERSECTION_POINT_HPP</span>
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<a name="l00011"></a>00011 <span class="preprocessor"></span>
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<a name="l00012"></a>00012
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<a name="l00013"></a>00013 <span class="preprocessor">#include <vector></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="access_8hpp.html">boost/geometry/core/access.hpp</a>></span>
|
||
<a name="l00017"></a>00017 <span class="preprocessor">#include <<a class="code" href="coordinate__dimension_8hpp.html">boost/geometry/core/coordinate_dimension.hpp</a>></span>
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||
<a name="l00018"></a>00018
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<a name="l00019"></a>00019 <span class="preprocessor">#include <<a class="code" href="strategies_2distance_8hpp.html">boost/geometry/strategies/distance.hpp</a>></span>
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||
<a name="l00020"></a>00020 <span class="preprocessor">#include <<a class="code" href="distance__result_8hpp.html">boost/geometry/strategies/distance_result.hpp</a>></span>
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<a name="l00021"></a>00021
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<a name="l00022"></a>00022 <span class="preprocessor">#include <<a class="code" href="segment__identifier_8hpp.html">boost/geometry/algorithms/overlay/segment_identifier.hpp</a>></span>
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<a name="l00023"></a>00023
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<a name="l00024"></a>00024
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<a name="l00025"></a>00025 <span class="preprocessor">#ifdef BOOST_GEOMETRY_USE_MSM</span>
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<a name="l00026"></a>00026 <span class="preprocessor"></span><span class="preprocessor"># include <<a class="code" href="msm__state_8hpp.html">boost/geometry/algorithms/overlay/msm_state.hpp</a>></span>
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<a name="l00027"></a>00027 <span class="preprocessor">#endif</span>
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||
<a name="l00028"></a>00028 <span class="preprocessor"></span>
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<a name="l00029"></a>00029
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<a name="l00030"></a>00030 <span class="keyword">namespace </span>boost { <span class="keyword">namespace </span>geometry
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<a name="l00031"></a>00031 {
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<a name="l00032"></a>00032
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<a name="l00033"></a>00033 <span class="preprocessor">#ifndef DOXYGEN_NO_DETAIL</span>
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||
<a name="l00034"></a>00034 <span class="preprocessor"></span><span class="keyword">namespace </span>detail { <span class="keyword">namespace </span>intersection {
|
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<a name="l00035"></a>00035
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||
<a name="l00036"></a>00036
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||
<a name="l00037"></a>00037 <span class="preprocessor">#if ! defined(BOOST_GEOMETRY_USE_MSM)</span>
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||
<a name="l00038"></a>00038 <span class="preprocessor"></span>
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||
<a name="l00039"></a>00039 <span class="keyword">class </span>visit_info
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||
<a name="l00040"></a>00040 {
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||
<a name="l00041"></a>00041 <span class="keyword">private</span> :
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<a name="l00042"></a>00042 <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">int</span> NONE = 0;
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||
<a name="l00043"></a>00043 <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">int</span> STARTED = 1;
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<a name="l00044"></a>00044 <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">int</span> VISITED = 2;
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||
<a name="l00045"></a>00045 <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">int</span> FINISHED = 3;
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||
<a name="l00046"></a>00046 <span class="comment">//static const int WITHIN = 4;</span>
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<a name="l00047"></a>00047
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<a name="l00048"></a>00048 <span class="keywordtype">int</span> visit_code;
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||
<a name="l00049"></a>00049
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||
<a name="l00050"></a>00050 <span class="keyword">public</span>:
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<a name="l00051"></a>00051 <span class="keyword">inline</span> visit_info()
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||
<a name="l00052"></a>00052 : visit_code(0)
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<a name="l00053"></a>00053 {}
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<a name="l00054"></a>00054
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||
<a name="l00055"></a>00055 <span class="keywordtype">void</span> set_visited() { visit_code = VISITED; }
|
||
<a name="l00056"></a>00056 <span class="keywordtype">void</span> set_started() { visit_code = STARTED; }
|
||
<a name="l00057"></a>00057 <span class="keywordtype">void</span> set_finished() { visit_code = FINISHED; }
|
||
<a name="l00058"></a>00058
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||
<a name="l00059"></a>00059 <span class="keywordtype">bool</span> none()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> visit_code == NONE; }
|
||
<a name="l00060"></a>00060 <span class="keywordtype">bool</span> visited()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> visit_code == VISITED; }
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||
<a name="l00061"></a>00061
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||
<a name="l00062"></a>00062 <span class="preprocessor">#ifdef BOOST_GEOMETRY_DEBUG_INTERSECTION</span>
|
||
<a name="l00063"></a>00063 <span class="preprocessor"></span> <span class="keyword">friend</span> std::ostream& operator<<(std::ostream &os, visit_info <span class="keyword">const</span>& v)
|
||
<a name="l00064"></a>00064 {
|
||
<a name="l00065"></a>00065 <span class="keywordflow">if</span> (v.visit_code != 0)
|
||
<a name="l00066"></a>00066 {
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||
<a name="l00067"></a>00067 os << <span class="stringliteral">" VIS: "</span> << int(v.visit_code);
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||
<a name="l00068"></a>00068 }
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||
<a name="l00069"></a>00069 <span class="keywordflow">return</span> os;
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||
<a name="l00070"></a>00070 }
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||
<a name="l00071"></a>00071 <span class="preprocessor">#endif</span>
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||
<a name="l00072"></a>00072 <span class="preprocessor"></span>
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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="preprocessor">#else</span>
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||
<a name="l00076"></a>00076 <span class="preprocessor"></span>
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||
<a name="l00077"></a>00077 <span class="keyword">class </span>visit_info
|
||
<a name="l00078"></a>00078 {
|
||
<a name="l00079"></a>00079 <span class="keyword">private</span> :
|
||
<a name="l00080"></a>00080 <span class="preprocessor">#ifndef USE_MSM_MINI</span>
|
||
<a name="l00081"></a>00081 <span class="preprocessor"></span> <span class="keyword">mutable</span>
|
||
<a name="l00082"></a>00082 <span class="preprocessor">#endif</span>
|
||
<a name="l00083"></a>00083 <span class="preprocessor"></span> <a class="code" href="msm__state_8hpp.html#6418566a1c0c5b90a3e0368fde4869e1">traverse_state</a> state;
|
||
<a name="l00084"></a>00084
|
||
<a name="l00085"></a>00085 <span class="keyword">public</span> :
|
||
<a name="l00086"></a>00086 <span class="keyword">inline</span> visit_info()
|
||
<a name="l00087"></a>00087 {
|
||
<a name="l00088"></a>00088 state.start();
|
||
<a name="l00089"></a>00089 }
|
||
<a name="l00090"></a>00090
|
||
<a name="l00091"></a>00091 <span class="keywordtype">void</span> set_visited() { state.process_event(<a class="code" href="structvisit.html">visit</a>()); }
|
||
<a name="l00092"></a>00092 <span class="keywordtype">void</span> set_started() { state.process_event(<a class="code" href="structstarting.html">starting</a>()); }
|
||
<a name="l00093"></a>00093 <span class="keywordtype">void</span> set_finished() { state.process_event(<a class="code" href="structfinish.html">finish</a>()); }
|
||
<a name="l00094"></a>00094
|
||
<a name="l00095"></a>00095 <span class="preprocessor">#ifdef USE_MSM_MINI</span>
|
||
<a name="l00096"></a>00096 <span class="preprocessor"></span> <span class="keywordtype">bool</span> none()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> state.flag_none(); }
|
||
<a name="l00097"></a>00097 <span class="keywordtype">bool</span> visited()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> state.flag_visited(); }
|
||
<a name="l00098"></a>00098 <span class="preprocessor">#else</span>
|
||
<a name="l00099"></a>00099 <span class="preprocessor"></span> <span class="keywordtype">bool</span> none()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> state.is_flag_active<<a class="code" href="structis__init.html">is_init</a>>(); }
|
||
<a name="l00100"></a>00100 <span class="keywordtype">bool</span> visited()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> state.is_flag_active<<a class="code" href="structis__visited.html">is_visited</a>>(); }
|
||
<a name="l00101"></a>00101 <span class="preprocessor">#endif</span>
|
||
<a name="l00102"></a>00102 <span class="preprocessor"></span>
|
||
<a name="l00103"></a>00103 <span class="preprocessor">#ifdef BOOST_GEOMETRY_DEBUG_INTERSECTION</span>
|
||
<a name="l00104"></a>00104 <span class="preprocessor"></span> <span class="keyword">friend</span> std::ostream& operator<<(std::ostream &os, visit_info <span class="keyword">const</span>& v)
|
||
<a name="l00105"></a>00105 {
|
||
<a name="l00106"></a>00106 <span class="keywordflow">return</span> os;
|
||
<a name="l00107"></a>00107 }
|
||
<a name="l00108"></a>00108 <span class="preprocessor">#endif</span>
|
||
<a name="l00109"></a>00109 <span class="preprocessor"></span>};
|
||
<a name="l00110"></a>00110 <span class="preprocessor">#endif</span>
|
||
<a name="l00111"></a>00111 <span class="preprocessor"></span>
|
||
<a name="l00112"></a>00112
|
||
<a name="l00113"></a>00113
|
||
<a name="l00114"></a>00114 <span class="keyword">template</span><<span class="keyword">typename</span> P>
|
||
<a name="l00115"></a>00115 <span class="keyword">struct </span>intersection_info
|
||
<a name="l00116"></a>00116 {
|
||
<a name="l00117"></a>00117 <span class="keyword">typedef</span> P point_type;
|
||
<a name="l00118"></a>00118 <span class="keyword">typedef</span> <span class="keyword">typename</span> distance_result<P, P>::type distance_type;
|
||
<a name="l00119"></a>00119
|
||
<a name="l00120"></a>00120 <span class="keyword">inline</span> intersection_info()
|
||
<a name="l00121"></a>00121 : travels_to_vertex_index(-1)
|
||
<a name="l00122"></a>00122 , travels_to_ip_index(-1)
|
||
<a name="l00123"></a>00123 , next_ip_index(-1)
|
||
<a name="l00124"></a>00124 , <a class="code" href="group__distance.html#g8fb8022d64a75b24c80a64ba46ec4738" title="Calculate distance between two geometries with a specified strategy.">distance</a>(geometry::<a class="code" href="group__distance.html#gfd1d932eefc782b38776b2c49b56575f" title="Object generator to create instance which can be compared.">make_distance_result</a><distance_type>(0))
|
||
<a name="l00125"></a>00125 , direction(0)
|
||
<a name="l00126"></a>00126 , how(<span class="stringliteral">'?'</span>)
|
||
<a name="l00127"></a>00127 , arrival(0)
|
||
<a name="l00128"></a>00128 , opposite(false)
|
||
<a name="l00129"></a>00129 , flagged(false)
|
||
<a name="l00130"></a>00130 {}
|
||
<a name="l00131"></a>00131
|
||
<a name="l00132"></a>00132 <span class="comment">// Point to which the segment from IP is directing (TO-point)</span>
|
||
<a name="l00133"></a>00133 <span class="comment">// If they intersect on their "arrival" points, it is the FROM-point.</span>
|
||
<a name="l00134"></a>00134 P other_point;
|
||
<a name="l00135"></a>00135
|
||
<a name="l00136"></a>00136 <span class="comment">// Identifier of this segment (source,segment,ring,multi)</span>
|
||
<a name="l00137"></a>00137 segment_identifier seg_id;
|
||
<a name="l00138"></a>00138
|
||
<a name="l00139"></a>00139 <span class="comment">// Identify the segment where it was intersected with to form this IP</span>
|
||
<a name="l00140"></a>00140 segment_identifier other_id;
|
||
<a name="l00141"></a>00141
|
||
<a name="l00142"></a>00142
|
||
<a name="l00143"></a>00143 <span class="comment">// vertex to which is free travel after this IP,</span>
|
||
<a name="l00144"></a>00144 <span class="comment">// so from "segment_index+1" to "travels_to_vertex_index", without IP-s,</span>
|
||
<a name="l00145"></a>00145 <span class="comment">// can be -1</span>
|
||
<a name="l00146"></a>00146 <span class="keywordtype">int</span> travels_to_vertex_index;
|
||
<a name="l00147"></a>00147
|
||
<a name="l00148"></a>00148 <span class="comment">// same but now IP index, so "next IP index" but not on THIS segment</span>
|
||
<a name="l00149"></a>00149 <span class="keywordtype">int</span> travels_to_ip_index;
|
||
<a name="l00150"></a>00150
|
||
<a name="l00151"></a>00151 <span class="comment">// index of next IP on this segment, -1 if there is no one</span>
|
||
<a name="l00152"></a>00152 <span class="keywordtype">int</span> next_ip_index;
|
||
<a name="l00153"></a>00153
|
||
<a name="l00154"></a>00154 distance_type <a class="code" href="group__distance.html#g8fb8022d64a75b24c80a64ba46ec4738" title="Calculate distance between two geometries with a specified strategy.">distance</a>; <span class="comment">// distance-measurement from segment.first to IP</span>
|
||
<a name="l00155"></a>00155
|
||
<a name="l00156"></a>00156 <span class="comment">// 1: left, -1: right, 0: collinear</span>
|
||
<a name="l00157"></a>00157 <span class="keywordtype">int</span> direction;
|
||
<a name="l00158"></a>00158
|
||
<a name="l00159"></a>00159 <span class="comment">// Information about how intersection is done</span>
|
||
<a name="l00160"></a>00160 <span class="keywordtype">char</span> how;
|
||
<a name="l00161"></a>00161
|
||
<a name="l00162"></a>00162 <span class="comment">// 1: arrived at IP, -1: departs from IP, 0: crosses IP</span>
|
||
<a name="l00163"></a>00163 <span class="keywordtype">int</span> arrival;
|
||
<a name="l00164"></a>00164
|
||
<a name="l00165"></a>00165 <span class="keywordtype">bool</span> opposite;
|
||
<a name="l00166"></a>00166
|
||
<a name="l00167"></a>00167 visit_info visit_state;
|
||
<a name="l00168"></a>00168 side_info sides;
|
||
<a name="l00169"></a>00169
|
||
<a name="l00170"></a>00170 <span class="keywordtype">bool</span> flagged; <span class="comment">// flagged for deletion</span>
|
||
<a name="l00171"></a>00171
|
||
<a name="l00172"></a>00172
|
||
<a name="l00173"></a>00173 <span class="preprocessor">#ifdef BOOST_GEOMETRY_DEBUG_INTERSECTION</span>
|
||
<a name="l00174"></a>00174 <span class="preprocessor"></span>
|
||
<a name="l00175"></a>00175 <span class="keyword">static</span> <span class="keyword">inline</span> std::string dir(<span class="keywordtype">int</span> d)
|
||
<a name="l00176"></a>00176 {
|
||
<a name="l00177"></a>00177 <span class="keywordflow">return</span> d == 0 ? <span class="stringliteral">"-"</span> : (d == 1 ? <span class="stringliteral">"L"</span> : d == -1 ? <span class="stringliteral">"R"</span> : <span class="stringliteral">"#"</span>);
|
||
<a name="l00178"></a>00178 }
|
||
<a name="l00179"></a>00179 <span class="keyword">static</span> <span class="keyword">inline</span> std::string how_str(<span class="keywordtype">int</span> h)
|
||
<a name="l00180"></a>00180 {
|
||
<a name="l00181"></a>00181 <span class="keywordflow">return</span> h == 0 ? <span class="stringliteral">"-"</span> : (h == 1 ? <span class="stringliteral">"A"</span> : <span class="stringliteral">"D"</span>);
|
||
<a name="l00182"></a>00182 }
|
||
<a name="l00183"></a>00183
|
||
<a name="l00184"></a>00184 <span class="keyword">friend</span> std::ostream& operator<<(std::ostream &os, intersection_info<P> <span class="keyword">const</span>& info)
|
||
<a name="l00185"></a>00185 {
|
||
<a name="l00186"></a>00186 <span class="keyword">typename</span> geometry::coordinate_type<P>::type d = info.distance;
|
||
<a name="l00187"></a>00187 os << <span class="stringliteral">"\t"</span>
|
||
<a name="l00188"></a>00188 << <span class="stringliteral">" src "</span> << info.seg_id.source_index
|
||
<a name="l00189"></a>00189 << <span class="stringliteral">" seg "</span> << info.seg_id.segment_index
|
||
<a name="l00190"></a>00190 << <span class="stringliteral">" (// "</span> << info.other_id.source_index
|
||
<a name="l00191"></a>00191 << <span class="stringliteral">"."</span> << info.other_id.segment_index << <span class="stringliteral">")"</span>
|
||
<a name="l00192"></a>00192 << <span class="stringliteral">" how "</span> << info.how
|
||
<a name="l00193"></a>00193 << <span class="stringliteral">"["</span> << how_str(info.arrival)
|
||
<a name="l00194"></a>00194 << <span class="stringliteral">" "</span> << dir(info.direction)
|
||
<a name="l00195"></a>00195 << (info.opposite ? <span class="stringliteral">" o"</span> : <span class="stringliteral">""</span>)
|
||
<a name="l00196"></a>00196 << <span class="stringliteral">"]"</span>
|
||
<a name="l00197"></a>00197 << <span class="stringliteral">" sd "</span>
|
||
<a name="l00198"></a>00198 << dir(info.sides.get<0,0>())
|
||
<a name="l00199"></a>00199 << dir(info.sides.get<0,1>())
|
||
<a name="l00200"></a>00200 << dir(info.sides.get<1,0>())
|
||
<a name="l00201"></a>00201 << dir(info.sides.get<1,1>())
|
||
<a name="l00202"></a>00202 << <span class="stringliteral">" nxt seg "</span> << info.travels_to_vertex_index
|
||
<a name="l00203"></a>00203 << <span class="stringliteral">" , ip "</span> << info.travels_to_ip_index
|
||
<a name="l00204"></a>00204 << <span class="stringliteral">" , or "</span> << info.next_ip_index
|
||
<a name="l00205"></a>00205 << <span class="stringliteral">" dst "</span> << <span class="keywordtype">double</span>(d)
|
||
<a name="l00206"></a>00206 << info.visit_state;
|
||
<a name="l00207"></a>00207 <span class="keywordflow">if</span> (info.flagged)
|
||
<a name="l00208"></a>00208 {
|
||
<a name="l00209"></a>00209 os << <span class="stringliteral">" FLAGGED"</span>;
|
||
<a name="l00210"></a>00210 }
|
||
<a name="l00211"></a>00211 <span class="keywordflow">return</span> os;
|
||
<a name="l00212"></a>00212 }
|
||
<a name="l00213"></a>00213 <span class="preprocessor">#endif</span>
|
||
<a name="l00214"></a>00214 <span class="preprocessor"></span>};
|
||
<a name="l00215"></a>00215
|
||
<a name="l00216"></a>00216
|
||
<a name="l00217"></a>00217 <span class="keyword">template</span><<span class="keyword">typename</span> P>
|
||
<a name="l00218"></a>00218 <span class="keyword">struct </span>intersection_point
|
||
<a name="l00219"></a>00219 {
|
||
<a name="l00220"></a>00220 <span class="keyword">public</span> :
|
||
<a name="l00221"></a>00221 <span class="keyword">inline</span> intersection_point()
|
||
<a name="l00222"></a>00222 : trivial(true)
|
||
<a name="l00223"></a>00223 , shared(false)
|
||
<a name="l00224"></a>00224 , flagged(false)
|
||
<a name="l00225"></a>00225 {
|
||
<a name="l00226"></a>00226 }
|
||
<a name="l00227"></a>00227
|
||
<a name="l00228"></a>00228
|
||
<a name="l00229"></a>00229 <span class="preprocessor">#ifdef BOOST_GEOMETRY_DEBUG_INTERSECTION</span>
|
||
<a name="l00230"></a>00230 <span class="preprocessor"></span> <span class="keyword">friend</span> std::ostream& operator<<(std::ostream &os, intersection_point<P> <span class="keyword">const</span>& p)
|
||
<a name="l00231"></a>00231 {
|
||
<a name="l00232"></a>00232 <span class="comment">// Convert them to double to make them comparable in DEBUG-files</span>
|
||
<a name="l00233"></a>00233 <span class="keyword">typedef</span> <span class="keywordtype">double</span> casted;
|
||
<a name="l00234"></a>00234
|
||
<a name="l00235"></a>00235 os
|
||
<a name="l00236"></a>00236 << std::setprecision(6)
|
||
<a name="l00237"></a>00237 << <span class="stringliteral">"IP ("</span> << casted(geometry::get<0>(p.point))
|
||
<a name="l00238"></a>00238 << <span class="stringliteral">","</span> << casted(geometry::get<1>(p.point)) << <span class="stringliteral">")"</span>
|
||
<a name="l00239"></a>00239 << p.visit_state
|
||
<a name="l00240"></a>00240 << (p.shared ? <span class="stringliteral">" SHARED"</span> : <span class="stringliteral">""</span>)
|
||
<a name="l00241"></a>00241 << (p.flagged ? <span class="stringliteral">" FLAGGED"</span> : <span class="stringliteral">""</span>)
|
||
<a name="l00242"></a>00242 << std::endl;
|
||
<a name="l00243"></a>00243
|
||
<a name="l00244"></a>00244 <span class="keywordflow">for</span> (<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> i = 0; i < p.info.size(); i++)
|
||
<a name="l00245"></a>00245 {
|
||
<a name="l00246"></a>00246 os << p.info[i] << std::endl;
|
||
<a name="l00247"></a>00247 }
|
||
<a name="l00248"></a>00248 <span class="keywordflow">if</span> (! p.report.empty())
|
||
<a name="l00249"></a>00249 {
|
||
<a name="l00250"></a>00250 os << p.report << std::endl;
|
||
<a name="l00251"></a>00251 }
|
||
<a name="l00252"></a>00252 <span class="keywordflow">return</span> os;
|
||
<a name="l00253"></a>00253 }
|
||
<a name="l00254"></a>00254 std::string report;
|
||
<a name="l00255"></a>00255 <span class="preprocessor">#endif</span>
|
||
<a name="l00256"></a>00256 <span class="preprocessor"></span> <span class="keyword">typedef</span> intersection_info<P> traversal_type;
|
||
<a name="l00257"></a>00257 <span class="keyword">typedef</span> std::vector<traversal_type> traversal_vector;
|
||
<a name="l00258"></a>00258
|
||
<a name="l00259"></a>00259 <span class="keyword">typedef</span> P point_type;
|
||
<a name="l00260"></a>00260
|
||
<a name="l00261"></a>00261 P point;
|
||
<a name="l00262"></a>00262
|
||
<a name="l00263"></a>00263 visit_info visit_state;
|
||
<a name="l00264"></a>00264
|
||
<a name="l00265"></a>00265 <span class="keywordtype">bool</span> trivial; <span class="comment">// FALSE if there is an collinearity, touch or so.</span>
|
||
<a name="l00266"></a>00266 <span class="keywordtype">bool</span> shared; <span class="comment">// shared with more IP's</span>
|
||
<a name="l00267"></a>00267 <span class="keywordtype">bool</span> flagged; <span class="comment">// flagged for deletion afterwards</span>
|
||
<a name="l00268"></a>00268
|
||
<a name="l00269"></a>00269 <span class="comment">// info about the two intersecting segments</span>
|
||
<a name="l00270"></a>00270 <span class="comment">// usually two, but often more if IP's are merged</span>
|
||
<a name="l00271"></a>00271 traversal_vector info;
|
||
<a name="l00272"></a>00272
|
||
<a name="l00273"></a>00273 <span class="keyword">inline</span> <span class="keywordtype">void</span> clone_except_info(intersection_point& other)<span class="keyword"> const</span>
|
||
<a name="l00274"></a>00274 <span class="keyword"> </span>{
|
||
<a name="l00275"></a>00275 other.point = point;
|
||
<a name="l00276"></a>00276 other.trivial = trivial;
|
||
<a name="l00277"></a>00277 other.shared = shared;
|
||
<a name="l00278"></a>00278 other.flagged = flagged;
|
||
<a name="l00279"></a>00279 <span class="comment">// Probably not necessary:</span>
|
||
<a name="l00280"></a>00280 other.visit_state = visit_state;
|
||
<a name="l00281"></a>00281 }
|
||
<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="comment">// namespace detail::intersection</span>
|
||
<a name="l00288"></a>00288 <span class="preprocessor">#endif //DOXYGEN_NO_DETAIL</span>
|
||
<a name="l00289"></a>00289 <span class="preprocessor"></span>
|
||
<a name="l00290"></a>00290
|
||
<a name="l00291"></a>00291 <span class="comment">// Register the intersection point as being a point fulfilling the Point Concept</span>
|
||
<a name="l00292"></a>00292 <span class="keyword">namespace </span>traits
|
||
<a name="l00293"></a>00293 {
|
||
<a name="l00294"></a>00294
|
||
<a name="l00295"></a>00295 <span class="keyword">template</span> <<span class="keyword">typename</span> P>
|
||
<a name="l00296"></a><a class="code" href="structboost_1_1geometry_1_1traits_1_1coordinate__type_3_01geometry_1_1detail_1_1intersection_1_1a6c4cee2a6d7c63ff45b7f0db30e2f68.html">00296</a> <span class="keyword">struct </span><a class="code" href="structboost_1_1geometry_1_1traits_1_1coordinate__type.html" title="Traits class which indicate the coordinate type (double,float,...) of a point.">coordinate_type</a><geometry::detail::intersection::intersection_point<P> >
|
||
<a name="l00297"></a>00297 {
|
||
<a name="l00298"></a><a class="code" href="structboost_1_1geometry_1_1traits_1_1coordinate__type_3_01geometry_1_1detail_1_1intersection_1_1a6c4cee2a6d7c63ff45b7f0db30e2f68.html#367196355b49a32aa48b31c438a559fe">00298</a> <span class="keyword">typedef</span> <span class="keyword">typename</span> <a class="code" href="structboost_1_1geometry_1_1coordinate__type.html" title="Meta-function which defines coordinate type (int, float, double, etc) of any geometry...">geometry::coordinate_type<P>::type</a> type;
|
||
<a name="l00299"></a>00299 };
|
||
<a name="l00300"></a>00300
|
||
<a name="l00301"></a>00301 <span class="keyword">template</span> <<span class="keyword">typename</span> P>
|
||
<a name="l00302"></a><a class="code" href="structboost_1_1geometry_1_1traits_1_1coordinate__system_3_01geometry_1_1detail_1_1intersection_1faf0019e2271a5468c6eaba1671435ee.html">00302</a> <span class="keyword">struct </span><a class="code" href="structboost_1_1geometry_1_1traits_1_1coordinate__system.html" title="Traits class defining the coordinate system of a point, important for strategy selection...">coordinate_system</a><geometry::detail::intersection::intersection_point<P> >
|
||
<a name="l00303"></a>00303 {
|
||
<a name="l00304"></a><a class="code" href="structboost_1_1geometry_1_1traits_1_1coordinate__system_3_01geometry_1_1detail_1_1intersection_1faf0019e2271a5468c6eaba1671435ee.html#c00bc79e4f94c2ba97d55b890cc40d48">00304</a> <span class="keyword">typedef</span> <span class="keyword">typename</span> <a class="code" href="structboost_1_1geometry_1_1coordinate__system.html" title="Meta-function which defines coordinate system for any geometry.">geometry::coordinate_system<P>::type</a> type;
|
||
<a name="l00305"></a>00305 };
|
||
<a name="l00306"></a>00306
|
||
<a name="l00307"></a>00307 <span class="keyword">template</span> <<span class="keyword">typename</span> P>
|
||
<a name="l00308"></a><a class="code" href="structboost_1_1geometry_1_1traits_1_1dimension_3_01geometry_1_1detail_1_1intersection_1_1intersection__point_3_01_p_01_4_01_4.html">00308</a> <span class="keyword">struct </span><a class="code" href="structboost_1_1geometry_1_1traits_1_1dimension.html" title="Traits class indicating the number of dimensions of a point.">dimension</a><geometry::detail::intersection::intersection_point<P> >
|
||
<a name="l00309"></a>00309 : geometry::<a class="code" href="structboost_1_1geometry_1_1traits_1_1dimension.html" title="Traits class indicating the number of dimensions of a point.">dimension</a><P>
|
||
<a name="l00310"></a>00310 {};
|
||
<a name="l00311"></a>00311
|
||
<a name="l00312"></a>00312 <span class="keyword">template</span> <<span class="keyword">typename</span> P>
|
||
<a name="l00313"></a><a class="code" href="structboost_1_1geometry_1_1traits_1_1tag_3_01geometry_1_1detail_1_1intersection_1_1intersection__point_3_01_p_01_4_01_4.html">00313</a> <span class="keyword">struct </span><a class="code" href="structboost_1_1geometry_1_1traits_1_1tag.html" title="Traits class to attach a tag to a geometry.">tag</a><geometry::detail::intersection::intersection_point<P> >
|
||
<a name="l00314"></a>00314 {
|
||
<a name="l00315"></a><a class="code" href="structboost_1_1geometry_1_1traits_1_1tag_3_01geometry_1_1detail_1_1intersection_1_1intersection__point_3_01_p_01_4_01_4.html#d367710ff5c02942b7a421f9c5e6bbd1">00315</a> <span class="keyword">typedef</span> <a class="code" href="structboost_1_1geometry_1_1point__tag.html" title="OGC Point identifying tag.">point_tag</a> <a class="code" href="structboost_1_1geometry_1_1point__tag.html" title="OGC Point identifying tag.">type</a>;
|
||
<a name="l00316"></a>00316 };
|
||
<a name="l00317"></a>00317
|
||
<a name="l00318"></a>00318 <span class="keyword">template</span> <<span class="keyword">typename</span> P, std::<span class="keywordtype">size_t</span> Dimension>
|
||
<a name="l00319"></a><a class="code" href="structboost_1_1geometry_1_1traits_1_1access_3_01geometry_1_1detail_1_1intersection_1_1intersecti10402d69f5f5745dcd418738246358e0.html">00319</a> <span class="keyword">struct </span><a class="code" href="structboost_1_1geometry_1_1traits_1_1access.html" title="Traits class which gives access (get,set) to points.">access</a><geometry::detail::intersection::intersection_point<P>, Dimension>
|
||
<a name="l00320"></a>00320 {
|
||
<a name="l00321"></a><a class="code" href="structboost_1_1geometry_1_1traits_1_1access_3_01geometry_1_1detail_1_1intersection_1_1intersecti10402d69f5f5745dcd418738246358e0.html#c9927e0675f0ffd8ea38fdeab68e0b4c">00321</a> <span class="keyword">static</span> <span class="keyword">inline</span> <span class="keyword">typename</span> <a class="code" href="structboost_1_1geometry_1_1traits_1_1coordinate__type.html" title="Traits class which indicate the coordinate type (double,float,...) of a point.">coordinate_type<P>::type</a> <span class="keyword">get</span>(
|
||
<a name="l00322"></a>00322 geometry::detail::intersection::intersection_point<P> <span class="keyword">const</span>& p)
|
||
<a name="l00323"></a>00323 {
|
||
<a name="l00324"></a>00324 <span class="keywordflow">return</span> geometry::get<Dimension>(p.point);
|
||
<a name="l00325"></a>00325 }
|
||
<a name="l00326"></a>00326
|
||
<a name="l00327"></a><a class="code" href="structboost_1_1geometry_1_1traits_1_1access_3_01geometry_1_1detail_1_1intersection_1_1intersecti10402d69f5f5745dcd418738246358e0.html#f63e33f3230c22426de5a18663db9fcd">00327</a> <span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">void</span> <span class="keyword">set</span>(geometry::detail::intersection::intersection_point<P>& p,
|
||
<a name="l00328"></a>00328 <span class="keyword">typename</span> <a class="code" href="structboost_1_1geometry_1_1traits_1_1coordinate__type.html" title="Traits class which indicate the coordinate type (double,float,...) of a point.">coordinate_type<P>::type</a> <span class="keyword">const</span>& value)
|
||
<a name="l00329"></a>00329 {
|
||
<a name="l00330"></a>00330 geometry::set<Dimension>(p.point, value);
|
||
<a name="l00331"></a>00331 }
|
||
<a name="l00332"></a>00332 };
|
||
<a name="l00333"></a>00333
|
||
<a name="l00334"></a>00334 }
|
||
<a name="l00335"></a>00335
|
||
<a name="l00336"></a>00336
|
||
<a name="l00337"></a>00337 <span class="preprocessor">#ifdef BOOST_GEOMETRY_DEBUG_INTERSECTION</span>
|
||
<a name="l00338"></a>00338 <span class="preprocessor"></span>
|
||
<a name="l00339"></a>00339 <span class="keyword">template</span> <<span class="keyword">typename</span> V>
|
||
<a name="l00340"></a>00340 <span class="keyword">inline</span> <span class="keywordtype">void</span> report_ip(V <span class="keyword">const</span>& intersection_points)
|
||
<a name="l00341"></a>00341 {
|
||
<a name="l00342"></a>00342 <span class="keyword">typedef</span> <span class="keyword">typename</span> V::const_iterator iterator_type;
|
||
<a name="l00343"></a>00343
|
||
<a name="l00344"></a>00344 <span class="keywordflow">for</span> (iterator_type it = intersection_points.begin();
|
||
<a name="l00345"></a>00345 it != intersection_points.end();
|
||
<a name="l00346"></a>00346 ++it)
|
||
<a name="l00347"></a>00347 {
|
||
<a name="l00348"></a>00348 <span class="keywordflow">if</span> (! it->flagged)
|
||
<a name="l00349"></a>00349 {
|
||
<a name="l00350"></a>00350 std::cout << *it;
|
||
<a name="l00351"></a>00351 }
|
||
<a name="l00352"></a>00352 }
|
||
<a name="l00353"></a>00353 }
|
||
<a name="l00354"></a>00354 <span class="preprocessor">#endif // BOOST_GEOMETRY_DEBUG_INTERSECTION</span>
|
||
<a name="l00355"></a>00355 <span class="preprocessor"></span>
|
||
<a name="l00356"></a>00356
|
||
<a name="l00357"></a>00357 }} <span class="comment">// namespace boost::geometry</span>
|
||
<a name="l00358"></a>00358
|
||
<a name="l00359"></a>00359 <span class="preprocessor">#endif // BOOST_GEOMETRY_ALGORITHMS_INTERSECTION_POINT_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>
|