pan>
<a name="l00014"></a>00014 <span class="comment">##  This file contains routines used to sort atoms and vertices systems using</span>
<a name="l00015"></a>00015 <span class="comment">##  coordinates x, y or z. We define a structure containing all information</span>
<a name="l00016"></a>00016 <span class="comment">##  </span>
<a name="l00017"></a>00017 <span class="comment">##</span>
<a name="l00018"></a>00018 <span class="comment">## MODIFICATIONS HISTORY</span>
<a name="l00019"></a>00019 <span class="