../../up.png"></a></h2>
<div class="box"><strong>function addrefarrow(h,x,y,u,v) </strong></div>

<h2><a name="_description"></a>DESCRIPTION <a href="#_top"><img alt="^" border="0" src="../../up.png"></a></h2>
<div class="fragment"><pre class="comment"> addrefarrow(h,x,y,u,v)

 This is a quick hack to add a scale/reference arrow at a desired position
 given by  the input argument (x,y).  The scale arrow length in the x
 direction is given by u, in the y direction by v.  

 The input handle h is created by t