ncept
          Definition</a>
        </h6>
<p>
          The Linestring Concept is defined as following:
        </p>
<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
<li class="listitem">
              there must be a specialization of <code class="computeroutput"><span class="identifier">traits</span><span class="special">::</span><span class="identifier">tag</span></code>
              defining <code class="computeroutput"><span class="identifier">linestring_tag</span