X-Git-Url: https://git.creatis.insa-lyon.fr/pubgit/?p=CreaPhase.git;a=blobdiff_plain;f=octave_packages%2Ffpl-1.2.0%2FFPL3dxoutputmesh.m;fp=octave_packages%2Ffpl-1.2.0%2FFPL3dxoutputmesh.m;h=afa62d64847357bc2429b242f7e6f90bfbbb92cf;hp=0000000000000000000000000000000000000000;hb=c880e8788dfc484bf23ce13fa2787f2c6bca4863;hpb=1705066eceaaea976f010f669ce8e972f3734b05

diff --git a/octave_packages/fpl-1.2.0/FPL3dxoutputmesh.m b/octave_packages/fpl-1.2.0/FPL3dxoutputmesh.m
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+## Copyright (C) 2004-2008,2009  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} {} FPL3dxoutputmesh ( @var{filename}, @
+## @var{mesh} )
+##
+##  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{mesh}     = PDE-tool like mesh
+## @end itemize
+## @end deftypefn
+
+
+function FPL3dxoutputmesh(filename,mesh)
+
+  nodes  = mesh.p';
+  elem   = mesh.t(1:4,:)';
+
+  fid    = fopen (filename,"w");
+  nnodes = columns(mesh.p);
+  nelem  = columns(mesh.t);
+
+  fprintf(fid,"object ""pos""\nclass array type float rank 1 shape 3 items %d data follows",nnodes);
+  for ii = 1:nnodes
+    fprintf(fid,"\n");
+    fprintf(fid,"    %e",nodes(ii,:));
+  endfor
+
+  ## In DX format nodes are numbered starting from zero,
+  ## instead we want to number them starting from 1.
+  if (min(min(elem))==1)
+    elem = elem - 1;
+  elseif(min(min(elem))~=0)
+    error("WARNING: check tetrahedra structure");
+  end                    
+
+  fprintf(fid,"\n\nobject ""con""\nclass array type int rank 1 shape 4 items %d data follows",nelem);
+  for ii = 1:nelem
+    fprintf(fid,"\n");
+    fprintf(fid,"      %d",elem(ii,:));
+  endfor
+
+  fprintf(fid,"\nattribute ""element type"" string ""tetrahedra""\nattribute ""ref"" string ""positions""\n\n");
+
+  fprintf(fid,"object ""themesh"" class field\n");
+  fprintf(fid,"component ""positions"" value ""pos""\n");
+  fprintf(fid,"component ""connections"" value ""con""\n");
+
+  fprintf(fid,"\nend\n");
+  fclose (fid);
+
+endfunction
+
+%!test
+%! msh.p =[ 0   0   1   1   0   0   1   1
+%!	    0   1   0   1   0   1   0   1
+%!	    0   0   0   0   1   1   1   1];
+%! msh.e =[1   5   7   8   5   5   6   8   1   3   5   7
+%! 	   2   6   3   3   7   3   2   6   3   2   6   6
+%!         6   1   8   4   3   1   4   4   2   4   7   8
+%!         0   0   0   0   0   0   0   0   0   0   0   0
+%!         0   0   0   0   0   0   0   0   0   0   0   0
+%!         0   0   0   0   0   0   0   0   0   0   0   0
+%!         0   0   0   0   0   0   0   0   0   0   0   0
+%!         0   0   0   0   0   0   0   0   0   0   0   0
+%!         1   1   1   1   1   1   1   1   1   1   1   1
+%!         1   1   2   2   3   3   4   4   5   5   6   6];
+%! msh.t =[ 1   5   5   6   7   8
+%!          3   6   6   3   3   3
+%!          2   7   3   2   6   6
+%!          6   3   1   4   8   4
+%!          1   1   1   1   1   1];
+%! testfile = "object ""pos""\nclass array type float rank 1 shape 3 items 8 data follows\n    0.000000e+00    0.000000e+00    0.000000e+00\n    0.000000e+00    1.000000e+00    0.000000e+00\n    1.000000e+00    0.000000e+00    0.000000e+00\n    1.000000e+00    1.000000e+00    0.000000e+00\n    0.000000e+00    0.000000e+00    1.000000e+00\n    0.000000e+00    1.000000e+00    1.000000e+00\n    1.000000e+00    0.000000e+00    1.000000e+00\n    1.000000e+00    1.000000e+00    1.000000e+00\n\nobject ""con""\nclass array type int rank 1 shape 4 items 6 data follows\n      0      2      1      5\n      4      5      6      2\n      4      5      2      0\n      5      2      1      3\n      6      2      5      7\n      7      2      5      3\nattribute ""element type"" string ""tetrahedra""\nattribute ""ref"" string ""positions""\n\nobject ""themesh"" class field\ncomponent ""positions"" value ""pos""\ncomponent ""connections"" value ""con""\n\nend\n";
+%! FPL3dxoutputmesh ("__FPL3dxoutputmesh__test__.dx",msh);
+%! fid = fopen("__FPL3dxoutputmesh__test__.dx","r"); 
+%! s = fread(fid);
+%! fclose(fid); 
+%! assert (char(s'), testfile);
+%! delete __FPL3dxoutputmesh__test__.dx