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function UDXoutput2Ddata(filename,p,t,u,attr_name,attr_rank,attr_shape,endfile)
##
## UDXoutput2Ddata(filename,p,t,u,attr_name,attr_rank,attr_shape,endfile)
##
## Outputs data in DX form.
## Only one variable can be written to the file
## variable must be a scalar, vector or tensor of doubles
##
## x
## attr_name = name of the variable (type string)
## attr_rank = rank of variable data (0 for scalar, 1 for vector, etc.)
## attr_shape = number of components of variable data (assumed 1 for scalar)
##
% This file is part of
%
% SECS2D - A 2-D Drift--Diffusion Semiconductor Device Simulator
% -------------------------------------------------------------------
% Copyright (C) 2004-2006 Carlo de Falco
%
%
%
% SECS2D 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.
%
% SECS2D 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 SECS2D; If not, see <http://www.gnu.org/licenses/>.
p = p';
t = t';
t = t(:,1:3);
%eval(['!rm -f ',filename]);
fid=fopen (filename,'w');
Nnodi = size(p,1);
Ntriangoli = size(t,1);
Ndati = size(u,1);
fprintf(fid,'object "pos"\nclass array type float rank 1 shape 2 items %d data follows',Nnodi);
for i=1:Nnodi
fprintf(fid,'\n');
fprintf(fid,' %1.7e',p(i,:));
end
if (min(min(t))==1)
t=t-1;
elseif(min(min(t))~=0)
disp('WARNING: check triangle structure')
end
# In DX format nodes are
# numbered starting from zero,
# instead we want to number
# them starting from 1!
# Here we restore the DX
# format
fprintf(fid,'\n\nobject "con"\nclass array type int rank 1 shape 3 items %d data follows',Ntriangoli);
for i=1:Ntriangoli
fprintf(fid,'\n');
fprintf(fid,' %d',t(i,:));
end
fprintf(fid,'\nattribute "element type" string "triangles"\nattribute "ref" string "positions"\n\n');
if ((attr_rank==0) & (min(size(u))==1))
fprintf(fid,'object "%s.data"\nclass array type double rank 0 items %d data follows',attr_name,Ndati);
fprintf(fid,'\n %1.7e',u);
else
fprintf(fid,'object "%s.data"\nclass array type double rank %d shape %d items %d data follows', ...
attr_name,attr_rank,attr_shape,Ndati);
for i=1:Ndati
fprintf(fid,'\n');
fprintf(fid,' %1.7e',u(i,:));
end
end
if Ndati==Nnodi
fprintf(fid,['\nattribute "dep" string "positions"\n\n' ...
'object "%s" class field\n'...
'component "positions" value "pos"\n'...
'component "connections" value "con"\n'...
'component "data" value "%s.data"\n'],...
attr_name,attr_name);
elseif Ndati==Ntriangoli
fprintf(fid,['\nattribute "dep" string "connections"\n\n' ...
'object "%s" class field\n'...
'component "positions" value "pos"\n'...
'component "connections" value "con"\n'...
'component "data" value "%s.data"\n'],...
attr_name,attr_name);
end
if(endfile)
fprintf(fid,'\nend\n');
end
fclose (fid);
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