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<h1>RSL_get_closest_sweep</h1>
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<h3>Synopsis</h3>
<b>#include "rsl.h"</b> <br>
<b><a href="RSL_sweep_struct.html">Sweep</a> *RSL_get_closest_sweep(<a href="RSL_volume_struct.html">Volume</a> *v,float sweep_angle,float limit);</b>
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<hr>Description</h3>
Return the closest sweep within a volume. Closeness is determined by the minimum absolute difference of sweep_angle and the elevation angle of the ray. The difference must be less than <b>limit</b>. If no such ray can be found, return NULL.
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<h3>Return value</h3>
Upon successful completion, a pointer to the Sweep structure is returned. Otherwise, a NULL pointer is returned.
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<h3>See also</h3>
<A HREF="RSL_get_sweep.html">RSL_get_sweep</A>
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<p>Author: <a href="dennis.flanigan.html">Dennis Flanigan Jr.</a>
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