
<html><body><div style="color:#000; background-color:#fff; font-family:times new roman, new york, times, serif;font-size:12pt"><div><span id="yiv1802877656result_box" class="yiv1802877656" lang="en"><span class="yiv1802877656hps">Hi all</span><br><br> <span class="yiv1802877656hps">I have a</span> <span class="yiv1802877656hps">text file</span> <span class="yiv1802877656hps">of the form</span><br> <span class="yiv1802877656hps">LAT</span> <span class="yiv1802877656hps">LON</span> <span class="yiv1802877656hps">TOPOGRAPHY</span>&nbsp; (test.txt&nbsp; </span><span id="yiv1802877656result_box" class="yiv1802877656" lang="en"> <span class="yiv1802877656hps">attachment)</span></span></div><div>dx= 1minute ; dy= 1minute</div><div><br></div><div>$cat test.txt<br></div><div>-79&nbsp;&nbsp;&nbsp; 3&nbsp;&nbsp;&nbsp; -2826<br>-78.9833333333&nbsp;&nbsp;&nbsp; 3&nbsp;&nbsp;&nbsp; -2819.4375<br>-78.9666666667&nbsp;&nbsp;&nbsp; 3&nbsp;&nbsp;&nbsp;

 -2805<br>-78.95&nbsp;&nbsp;&nbsp; 3&nbsp;&nbsp;&nbsp; -2768.5<br>-78.9333333333&nbsp;&nbsp;&nbsp; 3&nbsp;&nbsp;&nbsp; -2721<br>-78.9166666667&nbsp;&nbsp;&nbsp;

 3&nbsp;&nbsp;&nbsp; -2668.25<br>-78.9&nbsp;&nbsp;&nbsp; 3&nbsp;&nbsp;&nbsp; -2612<br>:::::::::::::::::::::::::::::::::::::::::::::::::::</div><div>:::::::::::::::::::::::::::::::::::::::::::::::::</div><div>:::::::::::::::::::::::::::::::::::::::::::::::::::</div><div>::::::::::::::::::::::::::::::::::::::::::::::::::<br></div><div><span id="yiv1802877656result_box" class="yiv1802877656" lang="en">-77.1833333333&nbsp;&nbsp;&nbsp; 1&nbsp;&nbsp;&nbsp; 2822.375<br>-77.1666666667&nbsp;&nbsp;&nbsp; 1&nbsp;&nbsp;&nbsp; 2772<br>-77.15&nbsp;&nbsp;&nbsp; 1&nbsp;&nbsp;&nbsp; 2861.5625<br>-77.1333333333&nbsp;&nbsp;&nbsp; 1&nbsp;&nbsp;&nbsp; 2990<br>-77.1166666667&nbsp;&nbsp;&nbsp; 1&nbsp;&nbsp;&nbsp; 3088.75<br>-77.1&nbsp;&nbsp;&nbsp; 1&nbsp;&nbsp;&nbsp; 3149<br>-77.0833333333&nbsp;&nbsp;&nbsp; 1&nbsp;&nbsp;&nbsp; 3135.125<br>-77.0666666667&nbsp;&nbsp;&nbsp; 1&nbsp;&nbsp;&nbsp; 3059<br>-77.05&nbsp;&nbsp;&nbsp; 1&nbsp;&nbsp;&nbsp;

 2911.9375<br>-77.0333333333&nbsp;&nbsp;&nbsp;

 1&nbsp;&nbsp;&nbsp; 2720<br>-77.0166666667&nbsp;&nbsp;&nbsp; 1&nbsp;&nbsp;&nbsp; 2502.375<br>-77&nbsp;&nbsp;&nbsp; 1&nbsp;&nbsp;&nbsp; 2271<br></span></div><div><span id="yiv1802877656result_box" class="yiv1802877656" lang="en"><br></span></div><div><span id="yiv1802877656result_box" class="yiv1802877656" lang="en"><br></span></div><div><span id="yiv1802877656result_box" class="yiv1802877656" lang="en"> <span class="yiv1802877656hps">And I want to</span> <span class="yiv1802877656hps">convert</span> <span class="yiv1802877656hps">to binary (CTL)</span>, <span class="yiv1802877656hps">to</span> plot it whith <span class="yiv1802877656hps">grads</span><span class="yiv1802877656">.</span><br> <span class="yiv1802877656hps">Can anyone</span> <span class="yiv1802877656hps">help me?</span><br><br> <span class="yiv1802877656hps">thanks</span></span></div><div><br></div><div><br></div>Diego<br> <div style="font-family: times new roman, new york, times, serif;

 font-size: 12pt;"><br> </div>  </div></body></html>