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26 <div class="titlepage"><div><div><h5 class="title">
27 <a name="geometry.reference.algorithms.is_simple.is_simple_2_with_strategy"></a><a class="link" href="is_simple_2_with_strategy.html" title="is_simple (with strategy)">is_simple
29 </h5></div></div></div>
31 <a class="indexterm" name="idm46186997088224"></a>
32 Checks if a geometry is simple.
35 <a name="geometry.reference.algorithms.is_simple.is_simple_2_with_strategy.h0"></a>
36 <span class="phrase"><a name="geometry.reference.algorithms.is_simple.is_simple_2_with_strategy.synopsis"></a></span><a class="link" href="is_simple_2_with_strategy.html#geometry.reference.algorithms.is_simple.is_simple_2_with_strategy.synopsis">Synopsis</a>
40 <pre class="programlisting"><span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> <span class="identifier">Geometry</span><span class="special">,</span> <span class="keyword">typename</span> <span class="identifier">Strategy</span><span class="special">></span>
41 <span class="keyword">bool</span> <span class="identifier">is_simple</span><span class="special">(</span><span class="identifier">Geometry</span> <span class="keyword">const</span> <span class="special">&</span> <span class="identifier">geometry</span><span class="special">,</span> <span class="identifier">Strategy</span> <span class="keyword">const</span> <span class="special">&</span> <span class="identifier">strategy</span><span class="special">)</span></pre>
45 <a name="geometry.reference.algorithms.is_simple.is_simple_2_with_strategy.h1"></a>
46 <span class="phrase"><a name="geometry.reference.algorithms.is_simple.is_simple_2_with_strategy.parameters"></a></span><a class="link" href="is_simple_2_with_strategy.html#geometry.reference.algorithms.is_simple.is_simple_2_with_strategy.parameters">Parameters</a>
48 <div class="informaltable"><table class="table">
86 Any type fulfilling a Geometry Concept
96 A model of the specified concept
108 Any type fulfilling a Is_simple Strategy Concept
118 The strategy which will be used for is_simple calculations
125 <a name="geometry.reference.algorithms.is_simple.is_simple_2_with_strategy.h2"></a>
126 <span class="phrase"><a name="geometry.reference.algorithms.is_simple.is_simple_2_with_strategy.returns"></a></span><a class="link" href="is_simple_2_with_strategy.html#geometry.reference.algorithms.is_simple.is_simple_2_with_strategy.returns">Returns</a>
129 Returns true if the geometry is simple
132 <a name="geometry.reference.algorithms.is_simple.is_simple_2_with_strategy.h3"></a>
133 <span class="phrase"><a name="geometry.reference.algorithms.is_simple.is_simple_2_with_strategy.header"></a></span><a class="link" href="is_simple_2_with_strategy.html#geometry.reference.algorithms.is_simple.is_simple_2_with_strategy.header">Header</a>
139 <code class="computeroutput"><span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">geometry</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span></code>
145 <code class="computeroutput"><span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">geometry</span><span class="special">/</span><span class="identifier">algorithms</span><span class="special">/</span><span class="identifier">is_simple</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span></code>
148 <a name="geometry.reference.algorithms.is_simple.is_simple_2_with_strategy.h4"></a>
149 <span class="phrase"><a name="geometry.reference.algorithms.is_simple.is_simple_2_with_strategy.conformance"></a></span><a class="link" href="is_simple_2_with_strategy.html#geometry.reference.algorithms.is_simple.is_simple_2_with_strategy.conformance">Conformance</a>
152 The function is_simple implements function IsSimple from the <a href="http://www.opengeospatial.org/standards/sfa" target="_top">OGC
153 Simple Feature Specification</a>.
156 <a name="geometry.reference.algorithms.is_simple.is_simple_2_with_strategy.h5"></a>
157 <span class="phrase"><a name="geometry.reference.algorithms.is_simple.is_simple_2_with_strategy.supported_geometries"></a></span><a class="link" href="is_simple_2_with_strategy.html#geometry.reference.algorithms.is_simple.is_simple_2_with_strategy.supported_geometries">Supported
160 <div class="informaltable"><table class="table">
186 <span class="inlinemediaobject"><img src="../../../../img/ok.png" alt="ok"></span>
198 <span class="inlinemediaobject"><img src="../../../../img/ok.png" alt="ok"></span>
210 <span class="inlinemediaobject"><img src="../../../../img/ok.png" alt="ok"></span>
222 <span class="inlinemediaobject"><img src="../../../../img/ok.png" alt="ok"></span>
234 <span class="inlinemediaobject"><img src="../../../../img/ok.png" alt="ok"></span>
246 <span class="inlinemediaobject"><img src="../../../../img/ok.png" alt="ok"></span>
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301 <a name="geometry.reference.algorithms.is_simple.is_simple_2_with_strategy.h6"></a>
302 <span class="phrase"><a name="geometry.reference.algorithms.is_simple.is_simple_2_with_strategy.complexity"></a></span><a class="link" href="is_simple_2_with_strategy.html#geometry.reference.algorithms.is_simple.is_simple_2_with_strategy.complexity">Complexity</a>
305 Constant-time for points, segments and boxes
308 Linear for rings, polygons and multi-polygons
311 Linearithmic for multi-points, linestrings and multi-linestrings
314 <a name="geometry.reference.algorithms.is_simple.is_simple_2_with_strategy.h7"></a>
315 <span class="phrase"><a name="geometry.reference.algorithms.is_simple.is_simple_2_with_strategy.example"></a></span><a class="link" href="is_simple_2_with_strategy.html#geometry.reference.algorithms.is_simple.is_simple_2_with_strategy.example">Example</a>
318 Checks whether a geometry is simple
322 <pre class="programlisting"><span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">iostream</span><span class="special">></span>
324 <span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">geometry</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span>
325 <span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">geometry</span><span class="special">/</span><span class="identifier">geometries</span><span class="special">/</span><span class="identifier">point_xy</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span>
326 <span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">geometry</span><span class="special">/</span><span class="identifier">geometries</span><span class="special">/</span><span class="identifier">linestring</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span>
327 <span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">geometry</span><span class="special">/</span><span class="identifier">geometries</span><span class="special">/</span><span class="identifier">multi_linestring</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span>
330 <span class="keyword">int</span> <span class="identifier">main</span><span class="special">()</span>
331 <span class="special">{</span>
332 <span class="keyword">typedef</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">geometry</span><span class="special">::</span><span class="identifier">model</span><span class="special">::</span><span class="identifier">d2</span><span class="special">::</span><span class="identifier">point_xy</span><span class="special"><</span><span class="keyword">double</span><span class="special">></span> <span class="identifier">point_type</span><span class="special">;</span>
333 <span class="keyword">typedef</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">geometry</span><span class="special">::</span><span class="identifier">model</span><span class="special">::</span><span class="identifier">linestring</span><span class="special"><</span><span class="identifier">point_type</span><span class="special">></span> <span class="identifier">linestring_type</span><span class="special">;</span>
334 <span class="keyword">typedef</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">geometry</span><span class="special">::</span><span class="identifier">model</span><span class="special">::</span><span class="identifier">multi_linestring</span><span class="special"><</span><span class="identifier">linestring_type</span><span class="special">></span> <span class="identifier">multi_linestring_type</span><span class="special">;</span>
336 <span class="identifier">multi_linestring_type</span> <span class="identifier">multi_linestring</span><span class="special">;</span>
337 <span class="identifier">boost</span><span class="special">::</span><span class="identifier">geometry</span><span class="special">::</span><span class="identifier">read_wkt</span><span class="special">(</span><span class="string">"MULTILINESTRING((0 0,0 10,10 10,10 0,0 0),(10 10,20 20))"</span><span class="special">,</span> <span class="identifier">multi_linestring</span><span class="special">);</span>
339 <span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="string">"is simple? "</span>
340 <span class="special"><<</span> <span class="special">(</span><span class="identifier">boost</span><span class="special">::</span><span class="identifier">geometry</span><span class="special">::</span><span class="identifier">is_simple</span><span class="special">(</span><span class="identifier">multi_linestring</span><span class="special">)</span> <span class="special">?</span> <span class="string">"yes"</span> <span class="special">:</span> <span class="string">"no"</span><span class="special">)</span>
341 <span class="special"><<</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span><span class="special">;</span>
343 <span class="keyword">return</span> <span class="number">0</span><span class="special">;</span>
344 <span class="special">}</span>
351 <pre class="programlisting">is simple? no
353 <img src="../../../../img/algorithms/is_simple_example.png" alt="is_simple_example">
357 <a name="geometry.reference.algorithms.is_simple.is_simple_2_with_strategy.h8"></a>
358 <span class="phrase"><a name="geometry.reference.algorithms.is_simple.is_simple_2_with_strategy.see_also"></a></span><a class="link" href="is_simple_2_with_strategy.html#geometry.reference.algorithms.is_simple.is_simple_2_with_strategy.see_also">See
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