--- /dev/null
+## Copyright (C) 2008 Carlo de Falco
+##
+## This program 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.
+##
+## This program 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 this program; if not, write to the Free Software
+## Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+
+
+## -*- texinfo -*-
+## @deftypefn {Function File} {} FPL2vtkoutputdata ( @var{filename}, @var{p}, @var{t}, @var{nodedata}, @var{celldata}, @var{header}, @var{vtkver})
+##
+## Save data in VTK ASCII format.
+##
+## @itemize @minus
+## @item @var{filename} = name of file to save into
+## @item @var{p}, @var{t} = mesh node coordinates and connectivity
+## @item @var{name} = name of a mesh variable
+## @item @var{nodedata}/@var{celldata} = node/cell centered data
+## fields (2xNfields cell array), @var{*data}@{:,1@} = variable names;
+## @var{*data}@{:,2@} = variable data;
+## @item @var{header} comment to add in the file header
+## @item @var{vtkver} format version (default is 3.0)
+## @end itemize
+##
+## @seealso{FPL2dxoutputdata}
+## @end deftypefn
+
+function FPL2vtkoutputdata (filename, p, t, nodedata, celldata, header, vtkver)
+
+ fid = fopen (filename, "w");
+ if ( fid )
+
+ ## version ID
+ if (!exist("vtkver"))
+ vtkver = [3 0];
+ endif
+
+ fprintf (fid, "# vtk DataFile Version %d.%d\n", vtkver(1), vtkver(2));
+
+ ## header
+ if (!exist("header"))
+ header = "";
+ elseif (length(header) > 255)
+ header (255:end) = [];
+ endif
+
+ fprintf (fid, "%s\n", header);
+
+ ## File format: only ASCII supported for the moment
+ fprintf (fid, "ASCII\n");
+
+ ## Mesh: only triangles suported
+ fprintf (fid, "DATASET UNSTRUCTURED_GRID\n");
+
+ Nnodes = columns(p);
+ fprintf (fid,"POINTS %d double\n", Nnodes);
+ fprintf (fid,"%g %g 0\n", p);
+
+ Nelem = columns(t);
+ T = zeros(4,Nelem);
+ T(1,:)= 3;
+ T(2:4,:) = t(1:3,:) -1;
+ fprintf (fid,"CELLS %d %d\n", Nelem, Nelem*4);
+ fprintf (fid,"%d %d %d %d\n", T);
+ fprintf (fid,"CELL_TYPES %d \n", Nelem);
+ fprintf (fid,"%d\n", 5*ones(Nelem,1));
+
+ ## node data
+ if (exist("nodedata"))
+ nfields = rows(nodedata);
+ if nfields
+ fprintf (fid,"POINT_DATA %d\n", Nnodes);
+ for ifield = 1:nfields
+ V = nodedata {ifield, 2};
+ N = nodedata {ifield, 1};
+ if (isvector (V))
+ fprintf (fid,"SCALARS %s double\nLOOKUP_TABLE default\n", N);
+ fprintf (fid,"%g\n", V);
+ else
+ V(:,3) = 0;
+ fprintf (fid,"VECTORS %s double\nLOOKUP_TABLE default\n", N);
+ fprintf (fid,"%g %g %g\n", V);
+ endif
+ endfor
+ endif
+ endif
+
+ ## cell data
+ if (exist("celldata"))
+ nfields = rows(celldata);
+ if nfields
+ fprintf (fid,"CELL_DATA %d\n", Nelem);
+ for ifield = 1:nfields
+ V = celldata {ifield, 2};
+ N = celldata {ifield, 1};
+ if (isvector (V))
+ fprintf (fid,"SCALARS %s double\nLOOKUP_TABLE default\n", N);
+ fprintf (fid,"%g\n", V);
+ else
+ V(:,3) = 0;
+ fprintf (fid,"VECTORS %s double\nLOOKUP_TABLE default\n", N);
+ fprintf (fid,"%g %g %g\n", V);
+ endif
+ endfor
+ endif
+ endif
+
+ ## cleanup
+ fclose (fid);
+ else
+ error(["FPL2vtkoutputdata: could not open file " filename]);
+ endif
+endfunction
+
+%!test
+%! msh.p =[ 0 0 0 0 1 1 1 1 2 2 2 2 3 3 3 3
+%! 0 1 2 3 0 1 2 3 0 1 2 3 0 1 2 3];
+%! msh.e =[1 5 9 13 14 15 4 8 12 1 2 3
+%! 5 9 13 14 15 16 8 12 16 2 3 4
+%! 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 2 2 2 3 3 3 4 4 4
+%! 0 0 0 0 0 0 0 0 0 0 0 0
+%! 1 1 1 1 1 1 1 1 1 1 1 1];
+%! msh.t =[ 1 2 3 5 6 7 9 10 11 1 2 3 5 6 7 9 10 11
+%! 5 6 7 9 10 11 13 14 15 6 7 8 10 11 12 14 15 16
+%! 6 7 8 10 11 12 14 15 16 2 3 4 6 7 8 10 11 12
+%! 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1];
+%! testfile = "# vtk DataFile Version 3.0\n\nASCII\nDATASET UNSTRUCTURED_GRID\nPOINTS 16 double\n0 0 0\n0 1 0\n0 2 0\n0 3 0\n1 0 0\n1 1 0\n1 2 0\n1 3 0\n2 0 0\n2 1 0\n2 2 0\n2 3 0\n3 0 0\n3 1 0\n3 2 0\n3 3 0\nCELLS 18 72\n3 0 4 5\n3 1 5 6\n3 2 6 7\n3 4 8 9\n3 5 9 10\n3 6 10 11\n3 8 12 13\n3 9 13 14\n3 10 14 15\n3 0 5 1\n3 1 6 2\n3 2 7 3\n3 4 9 5\n3 5 10 6\n3 6 11 7\n3 8 13 9\n3 9 14 10\n3 10 15 11\nCELL_TYPES 18 \n5\n5\n5\n5\n5\n5\n5\n5\n5\n5\n5\n5\n5\n5\n5\n5\n5\n5\nPOINT_DATA 16\nSCALARS u double\nLOOKUP_TABLE default\n0\n0\n0\n0\n1\n1\n1\n1\n2\n2\n2\n2\n3\n3\n3\n3\n";
+%! FPL2vtkoutputdata ("__FPL2vtkoutputdata__test__.vtk", msh.p, msh.t, {"u", msh.p(1,:).'});
+%! fid = fopen("__FPL2vtkoutputdata__test__.vtk","r");
+%! s = fread(fid);
+%! fclose(fid);
+%! assert (char(s'), testfile);
+%! delete __FPL2vtkoutputdata__test__.vtk
git://git.creatis.insa-lyon.fr / CreaPhase.git / blobdiff