Add a useful package (from Source forge) for octave

[CreaPhase.git] / octave_packages / fpl-1.2.0 / FPL3dxoutputfield.m

diff --git a/octave_packages/fpl-1.2.0/FPL3dxoutputfield.m b/octave_packages/fpl-1.2.0/FPL3dxoutputfield.m
new file mode 100644 (file)
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+++ b/octave_packages/fpl-1.2.0/FPL3dxoutputfield.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} {} FPL3dxoutputfield( @var{filename}, @
+##  @var{meshfilename}, @var{dep}, @var{u},  @var{attr_name}, @var{attr_rank},  @
+##  @var{attr_shape}, @var{endfile} )
+##
+##   Outputs data in DX form.
+##
+##   Variable must be a scalar, vector or tensor of doubles   
+##
+## @itemize @minus
+##  @item @var{filename}     = name of file to save (type string)
+##  @item @var{meshfilename} = name of mesh file (type string)
+##  @item @var{dep}          = "positions" for node data, "connections" for element data
+##  @item @var{field}        = field data to be saved
+##  @item @var{attr_name}    = name of the variable (type string)
+##  @item @var{attr_rank}    = rank of variable data (0 for scalar, 1 for vector, etc.)
+##  @item @var{attr_shape}   = number of components of variable data  (assumed 1 for scalar)
+## @end itemize
+## @end deftypefn
+
+function FPL3dxoutputfield(filename,meshfilename,dep,field,attr_name,attr_rank,attr_shape)
+  
+  fid    = fopen (filename,"w");
+  nnodes = size(field,1);
+  
+  if ((attr_rank==0) & (min(size(field))==1))
+    fprintf(fid,"object ""%s.data""\nclass array type double rank 0 items %d data follows",attr_name,nnodes);
+    fprintf(fid,"\n %e",field);
+  else
+    fprintf(fid,"object ""%s.data""\nclass array type double rank %d shape %d items %d data follows",attr_name,attr_rank,attr_shape,nnodes);
+    for ii = 1:nnodes
+      fprintf(fid,"\n");
+      fprintf(fid,"    %e",field(ii,:));
+    endfor
+  endif
+  fprintf(fid,"\nattribute ""dep"" string ""%s""\n\n",dep);
+  fprintf(fid,"object ""%s"" class field\n",attr_name);
+  fprintf(fid,"component ""positions"" file %s ""pos""\n",meshfilename);
+  fprintf(fid,"component ""connections"" file %s ""con""\n",meshfilename);
+  fprintf(fid,"component ""data"" value ""%s.data""\n",attr_name);
+
+  fprintf(fid,"\nend\n");
+  fclose (fid);
+
+endfunction
+
+