source: trunk/examples/app-fermi/perl/fermi.pl

Last change on this file was 4461, checked in by ldelgass, 7 years ago

fix line endings

  • Property svn:eol-style set to native
File size: 1.6 KB
Line 
1# ----------------------------------------------------------------------
2#  EXAMPLE: Fermi-Dirac function in Perl.
3#         
4#  This simple example shows how to use Rappture within a simulator
5#  written in Perl.
6# ======================================================================
7#  AUTHOR:  Nicholas J. Kisseberth, Purdue University
8#  Copyright (c) 2004-2012  HUBzero Foundation, LLC
9#       
10#  See the file "license.terms" for information on usage and
11#  redistribution of this file, and for a DISCLAIMER OF ALL WARRANTIES.
12# ======================================================================
13
14use Rappture;
15
16# open the XML file containing the run parameters
17
18$driver = Rappture::RpLibrary->new($ARGV[0]);
19
20$Tstr = $driver->get("input.(temperature).current");
21$T = Rappture::RpUnits::convert($Tstr, "K", "off");
22
23$Efstr = $driver->get("input.(Ef).current");
24$Ef = Rappture::RpUnits::convert($Efstr, "eV", "off");
25
26$kT = 8.61734e-5 * $T;
27$Emin = $Ef - 10 * $kT;
28$Emax = $Ef + 10 * $kT;
29
30$E = $Emin;
31$dE = 0.005*($Emax - $Emin);
32
33# Label the output graph with a title, x-axis label,
34# y-axis label, y-axis units.
35
36$driver->put("output.curve(f12).about.label","Fermi-Dirac Factor",0);
37$driver->put("output.curve(f12).xaxis.label","Fermi-Dirac Factor",0);
38$driver->put("output.curve(f12).yaxis.label","Energy",0);
39$driver->put("output.curve(f12).yaxis.units","eV",0);
40
41while( $E < $Emax ) {
42    $f = 1.0 / ( 1.0 + exp(($E - $Ef) / $kT));
43    Rappture::Utils::progress((($E-$Emin)/($Emax-$Emin)*100),"Iterating");
44    $driver->put("output.curve(f12).component.xy", "$f $E\n", 1);
45    $E = $E + $dE;
46}
47
48$driver->result();
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