triangle and
        a small square.
        Write a summary to the console and unoriented regions to 'result'.
        Merge regions for cocircular input sites (i.e., the
        square).</dd>
    <dt>&nbsp;</dt>
    <dt><b>Example:</b> rbox r y c G0.1 D2 | qdelaunay <a href="qh-opto.html#s">s</a>
        <a href="qh-optf.html#Fv">Fv</a> <a href="qh-optq.html#Qt">Qt</a></dt>
    <dd>Compute the 2-d Delaunay triangulation of a triangle and
        a small square. Write a summary and unoriented
        regio