libs/geometry/doc/html/geometry/reference/algorithms/touches/touches_2_two_geometries.html


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<title>touches (two geometries)</title>
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<div class="titlepage"><div><div><h5 class="title">
<a name="geometry.reference.algorithms.touches.touches_2_two_geometries"></a><a class="link" href="touches_2_two_geometries.html" title="touches (two geometries)">touches
          (two geometries)</a>
</h5></div></div></div>
<p>
            <a class="indexterm" name="idp118407792"></a>
Checks if two geometries have at least one touching point (tangent -
            non overlapping)
          </p>
<h6>
<a name="geometry.reference.algorithms.touches.touches_2_two_geometries.h0"></a>
            <span class="phrase"><a name="geometry.reference.algorithms.touches.touches_2_two_geometries.synopsis"></a></span><a class="link" href="touches_2_two_geometries.html#geometry.reference.algorithms.touches.touches_2_two_geometries.synopsis">Synopsis</a>
          </h6>
<p>
</p>
<pre class="programlisting"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> <span class="identifier">Geometry1</span><span class="special">,</span> <span class="keyword">typename</span> <span class="identifier">Geometry2</span><span class="special">&gt;</span>
<span class="keyword">bool</span> <span class="identifier">touches</span><span class="special">(</span><span class="identifier">Geometry1</span> <span class="keyword">const</span> <span class="special">&amp;</span> <span class="identifier">geometry1</span><span class="special">,</span> <span class="identifier">Geometry2</span> <span class="keyword">const</span> <span class="special">&amp;</span> <span class="identifier">geometry2</span><span class="special">)</span></pre>
<p>
          </p>
<h6>
<a name="geometry.reference.algorithms.touches.touches_2_two_geometries.h1"></a>
            <span class="phrase"><a name="geometry.reference.algorithms.touches.touches_2_two_geometries.parameters"></a></span><a class="link" href="touches_2_two_geometries.html#geometry.reference.algorithms.touches.touches_2_two_geometries.parameters">Parameters</a>
          </h6>
<div class="informaltable"><table class="table">
<colgroup>
<col>
<col>
<col>
<col>
</colgroup>
<thead><tr>
<th>
                    <p>
                      Type
                    </p>
                  </th>
<th>
                    <p>
                      Concept
                    </p>
                  </th>
<th>
                    <p>
                      Name
                    </p>
                  </th>
<th>
                    <p>
                      Description
                    </p>
                  </th>
</tr></thead>
<tbody>
<tr>
<td>
                    <p>
                      Geometry1 const &amp;
                    </p>
                  </td>
<td>
                    <p>
                      Any type fulfilling a Geometry Concept
                    </p>
                  </td>
<td>
                    <p>
                      geometry1
                    </p>
                  </td>
<td>
                    <p>
                      A model of the specified concept
                    </p>
                  </td>
</tr>
<tr>
<td>
                    <p>
                      Geometry2 const &amp;
                    </p>
                  </td>
<td>
                    <p>
                      Any type fulfilling a Geometry Concept
                    </p>
                  </td>
<td>
                    <p>
                      geometry2
                    </p>
                  </td>
<td>
                    <p>
                      A model of the specified concept
                    </p>
                  </td>
</tr>
</tbody>
</table></div>
<h6>
<a name="geometry.reference.algorithms.touches.touches_2_two_geometries.h2"></a>
            <span class="phrase"><a name="geometry.reference.algorithms.touches.touches_2_two_geometries.returns"></a></span><a class="link" href="touches_2_two_geometries.html#geometry.reference.algorithms.touches.touches_2_two_geometries.returns">Returns</a>
          </h6>
<p>
            Returns true if two geometries touch each other
          </p>
<h6>
<a name="geometry.reference.algorithms.touches.touches_2_two_geometries.h3"></a>
            <span class="phrase"><a name="geometry.reference.algorithms.touches.touches_2_two_geometries.header"></a></span><a class="link" href="touches_2_two_geometries.html#geometry.reference.algorithms.touches.touches_2_two_geometries.header">Header</a>
          </h6>
<p>
            Either
          </p>
<p>
            <code class="computeroutput"><span class="preprocessor">#include</span> <span class="special">&lt;</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">&gt;</span></code>
          </p>
<p>
            Or
          </p>
<p>
            <code class="computeroutput"><span class="preprocessor">#include</span> <span class="special">&lt;</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">touches</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span></code>
          </p>
<h6>
<a name="geometry.reference.algorithms.touches.touches_2_two_geometries.h4"></a>
            <span class="phrase"><a name="geometry.reference.algorithms.touches.touches_2_two_geometries.conformance"></a></span><a class="link" href="touches_2_two_geometries.html#geometry.reference.algorithms.touches.touches_2_two_geometries.conformance">Conformance</a>
          </h6>
<p>
            The function touches implements function Touches from the <a href="http://www.opengeospatial.org/standards/sfa" target="_top">OGC
            Simple Feature Specification</a>.
          </p>
<p>
            The version with one parameter is additional and not described in the
            OGC standard
          </p>
<div class="note"><table border="0" summary="Note">
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<th align="left">Note</th>
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<tr><td align="left" valign="top"><p>
              Implemented for Point/Linestring/MultiLinestring/Polygon/MultiPolygon.
            </p></td></tr>
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<td align="right"><div class="copyright-footer">Copyright &#169; 2009-2015 Barend Gehrels, Bruno Lalande,
      Mateusz Loskot, Adam Wulkiewicz, Oracle and/or its affiliates<p>
        Distributed under the Boost Software License, Version 1.0. (See accompanying
        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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