The file is a regular grid of data points in the plane you selected. In your case it is a 20x20 grid. The following rows contain 400 data points corresponding to each point in the 20x20 grid. Specifically, assuming your plane is in the X-Y plane, the first data points correspond to:<br>
<br> X Y E<br>1*0.8246/20 1*0.8246/20 -0.25961699E+01<br>2*0.8246/20 1*0.8246/20 -0.26794386E+01<br>3*0.8246/20 1*0.8246/20 -0.27745819E+01<br>4*0.8246/20 1*0.8246/20 -0.28575199E+01<br>
5*0.8246/20 1*0.8246/20 -0.28953395E+01<br>....<br><br>I might have the order of X and Y swapped, but that is the idea. If you want to use the splot function in gnuplot, you will probably need to reformat the data. See an example here:<br>
<a href="http://gnuplot.sourceforge.net/docs_4.2/node331.html">http://gnuplot.sourceforge.net/docs_4.2/node331.html</a><br><br>Could be easier to install pgplot and plotgenc. <br><br>Greg<br><br><br><br><br><div class="gmail_extra">
<br><br><div class="gmail_quote">On Sat, Dec 8, 2012 at 12:43 AM, arrinas <span dir="ltr"><<a href="mailto:arrinas@gmail.com" target="_blank">arrinas@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<u></u>
<div style="MARGIN:10px">
<div> </div>
<div>Dear Pro. Blaha and wien2k users,</div>
<div> Greetings.</div>
<div> I am working on a 2D Fermi
surface of LaFeAsO , and following the steps on UG I got the fort.**
files.</div>
<div>However, we don't have pgplot and plotgenc.So my questions are:</div>
<div> 1. Is there
any plotting-program I can use to plot the fort files?</div>
<div> 2. The fort file I
got looks like:</div>
<div> 20 20 0.8246000 0.8246000
</div>
<div>-0.25961699E+01 -0.26794386E+01 -0.27745819E+01 -0.28575199E+01
-0.28953395E+01 </div>
<div> What is the
meaning of the second line and below of the fort file?</div>
<div> Is it OK if I want
to plot using gnulpot? If so , any experience or suggestion will be
appreciated.</div>
<div> </div>
<div>Best Regards,</div>
<hr style="WIDTH:210px;min-height:1px" align="left" color="#b5c4df" size="1">
<div><span>Bo Wan</span></div></div>
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<br></blockquote></div><br></div>