">%   nTheta      = number of theta partitions</span>
0029 <span class="comment">%   dry_thresh  = threshold for a point to be dry</span>
0030 <span class="comment">%   darc        = arc spacing in meters along which fetch is searched</span>
0031 <span class="comment">%</span>
0032 <span class="comment">% OUTPUT:</span>
0033 <span class="comment">%   fetch_struct = fetch structure containing fetch as a function of angle and free surface</span>
0034 <span class="comment">%                  height.  Angle is 