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function savemedit(node, face, elem, fname)
%
% savemedit(node,face,elem,fname)
%
% save a surface or tetrahedral mesh to Medit format
%
% author: Qianqian Fang, <q.fang at neu.edu>
% date: 2010/10/30
%
% input:
% node: input, surface node list, dimension (nn,3 or 4)
% face: input, surface face element list, dimension (be,3 or 4)
% elem: input, tetrahedral element list, dimension (ne,4 or 5)
% fname: output file name
%
% -- this function is part of iso2mesh toolbox (http://iso2mesh.sf.net)
%
fid = fopen(fname, 'wt');
if (fid == -1)
error('You do not have permission to save mesh files.');
end
fprintf(fid, '# Generated by iso2mesh: http://iso2mesh.sf.net\n');
fprintf(fid, 'MeshVersionFormatted\t1\nDimension\t3\n');
if (~isempty(node))
if (size(node, 2) <= 3)
node(1, 4) = 0;
end
fprintf(fid, 'Vertices\t%d\n', size(node, 1));
fprintf(fid, '%e\t%e\t%e\t%.0f\n', node(:, 1:4)');
end
if (~isempty(face))
if (size(face, 2) <= 3)
face(1, 4) = 0;
end
fprintf(fid, 'Triangles\t%d\n', size(face, 1));
fprintf(fid, '%d\t%d\t%d\t%d\n', face(:, 1:4)');
end
if (~isempty(elem))
if (size(elem, 2) <= 4)
elem(1, 5) = 0;
end
fprintf(fid, 'Tetrahedra\t%d\n', size(elem, 1));
fprintf(fid, '%d\t%d\t%d\t%d\t%d\n', elem(:, 1:5)');
end
fprintf(fid, 'End');
fclose(fid);
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