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diff --git a/octave_packages/fpl-1.2.0/FPL2ptcsurf.m b/octave_packages/fpl-1.2.0/FPL2ptcsurf.m
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+## Copyright (C) 2004-2008  Carlo de Falco, Massimiliano Culpo
+##
+##  This file is part of 
+##
+##                   FPL - Fem PLotting package for octave
+## 
+##  FPL is free software; you can redistribute it and/or modify
+##  it under the terms of the GNU General Public License as published by
+##  the Free Software Foundation; either version 2 of the License, or
+##  (at your option) any later version.
+## 
+##  FPL is distributed in the hope that it will be useful,
+##  but WITHOUT ANY WARRANTY; without even the implied warranty of
+##  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+##  GNU General Public License for more details.
+## 
+##  You should have received a copy of the GNU General Public License
+##  along with FPL; If not, see <http://www.gnu.org/licenses/>.
+##
+##
+##  AUTHORS:
+##  Carlo de Falco <cdf _AT_ users.sourceforge.net>
+##
+##  Culpo Massimiliano
+##  Bergische Universitaet Wuppertal
+##  Fachbereich C - Mathematik und Naturwissenschaften
+##  Arbeitsgruppe fuer Angewandte MathematD-42119 Wuppertal  Gaussstr. 20 
+##  D-42119 Wuppertal, Germany
+
+## -*- texinfo -*-
+##
+## @deftypefn {Function File} {} FPL2ptcsurf (@var{mesh1}, @
+## @var{color1}, @var{data1} @ [@var{mesh2}, @var{color2},@var{data2}])
+## 
+## Plots the scalar fields @var{data} over the triangulation
+## @var{mesh} using opendx. Connections will be displayed as defined
+## in @var{color}.
+##
+## @end deftypefn
+
+function FPL2ptcsurf(varargin)
+  
+  colorlist = "";
+  datalist  = "";
+  
+  for ii=1:3:nargin
+    dataname{ii} = mktemp("/tmp",".dx");
+    FPL2dxoutputdata(dataname{ii},varargin{ii}.p,varargin{ii}.t,varargin{ii+2},"var",0,1,1);
+    datalist = strcat (datalist, """", dataname{ii} ,"""");
+    colorlist= strcat (colorlist, """", varargin{ii+1} ,"""");
+  endfor
+  
+  scriptname = mktemp("/tmp",".net");
+  
+  ptcview    = file_in_path(path,"FPL2ptcsurf.net");
+  
+  system (["cp " ptcview " " scriptname]);
+  system (["sed -i \'s|""FILELIST""|" datalist "|g\' " scriptname]);
+  system (["sed -i \'s|""COLORLIST""|" colorlist "|g\' " scriptname]);
+  
+  command = ["dx  -noConfirmedQuit -program " scriptname " -execute -image  >& /dev/null & "];  
+  system(command);
+  
+endfunction
+
+function filename = mktemp (direct,ext);
+  
+  if (~exist(direct,"dir"))
+    error("Trying to save temporary file to non existing directory")
+  endif
+  
+  done = false;
+  
+  while ~done
+    filename = [direct,"/FPL.",num2str(floor(rand*1e7)),ext];
+    if ~exist(filename,"file")
+      done = true;
+    endif
+  endwhile
+  
+endfunction
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