etested">qh_updatetested</a>
clear tested flags and centrums involved in a
merge </li>
<li><a href="merge.c#willdelete">qh_willdelete</a>
moves facet to qh.visible_list; sets replacement
or NULL </li>
</ul>

<h3><a href="qh-merge.htm#TOC">&#187;</a><a name="mcycle">functions for
merging a cycle of facets</a></h3>
<p>If a point is coplanar with an horizon facet, the
corresponding new facets are linked together (a <em>samecycle</em>)
for merging.</p>
<ul>
<li><a href="merge.c#basevertices">qh_basevertices</a>