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<h1>RSL_read_...</h1>

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<h3>Synopsis</h3>
<b>#include &quot;rsl.h&quot;</b> <br>
<b><a href=RSL_ray_struct.html>Ray</a> *RSL_read_ray(FILE *fp);<br>
<a href=RSL_sweep_struct.html>Sweep</a> *RSL_read_sweep(FILE *fp);</b><b><a href=RSL_volume_struct.html><br>
Volume</a> *RSL_read_volume</b><b>(FILE *fp);</b> 

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<hr>Description</h3>
<b>RSL_read_volume</b> reads an entire volume structure from the input stream <b>fp</b>. <b>fp</b> is usually assigned inside the routine <b>RSL_read_radar</b>, however, you can assign the stream <b>fp</b> via fopen. <b>RSL_read_volume</b> calls <b>RSL_read_sweep</b> for the number of sweeps, vol-&gt;h.nsweeps, as determined from reading <b>fp</b>. Memory is allocated via <b>RSL_new_volume</b>. 

<p><b>RSL_read_sweep</b> reads an entire sweep structure from the input stream fp. <b>RSL_read_sweep</b> calls <b>RSL_read_ray</b> for the number of rays, sweep-&gt;h.nrays, as determined by reading <b>fp</b>. Memory is allocated via <b>RSL_new_sweep</b>. 

<p><b>RSL_read_ray</b> reads an entire ray structure from the input stream fp. RSL_read_ray ingests an entire ray of data and sets ray-&gt;h.nbins. Memory is allocated via <b>RSL_new_ray</b>. 
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<h3>Return value</h3>
Upon successful completion, a pointer to the appropriate structure is returned. Otherwise, a NULL pointer is returned and errno is set. 
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<h3>See also</h3>
<a href=RSL_new.html>RSL_new_volume</a>, <a href=RSL_new.html>RSL_new_sweep</a>, <a href=RSL_new.html>RSL_new_ray</a>,<br>
<a href=RSL_write.html>RSL_write_volume</a>, <a href=RSL_write.html>RSL_write_sweep</a>, <a href=RSL_write.html>RSL_write_ray</a>,<br>
<a href=RSL_read_radar.html>RSL_read_radar</a>, <a href=RSL_write_radar.html>RSL_write_radar</a>,<br>
<a href=RSL_radar_file_format.html>File format</a>. 
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<p>Author: John H. Merritt 
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