pnet_getvar.m

利用电磁场的源激发方法来计算光子晶体波导例如光子晶体光纤

function varargout=pnet_getvar(fid)
% PNET_GETVAR - Gets any matlab variable (number-, cell-, struct- or object -array) from pnet.
%
% Syntax:
%
%   [variable1, variable2,.....]=pnet_getvar(con)
%
%   Receives matlab variables over a TCP connection that was sent with
%   PNET_PUTVAR. This variable transfer uses its own non standard protocol.
%   Can also be used with UDP packets if the variable/variables fits inside
%   an UDP packet.
%
% Se also:  PNET_PUTVAR, PNET, PNET_REMOTE
%


%
%   This file(s) is part of the tcp_udp_ip toolbox (C) Peter Rydes鋞er et al.
%   et al.  1998-2003 for running in MATLAB(R) as scripts and/or plug-ins.
%
%   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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
%
%   In addition, as a SPECIAL EXCEPTION, Peter Rydes鋞er, SWEDEN,
%   gives permission to link the code of this program with any library,
%   and distribute linked combinations of it. You must obey the GNU
%   General Public License in all respects for all of the code in the
%   tcp_udp_ip toolbox and any . If you modify any source file included,
%   you may extend this exception to your version of the file, but you are
%   not obligated to do so.  If you do not wish to do so, delete this exception
%   statement from your version. This exception makes it possible to use
%   pnet.c (.dll) as a plug-in as it is intended and let it be (dynamical)
%   linked to MATLAB(R) or any compiled stand alone application.
%

if nargout~=1,
    for n=1:nargout,
        varargout{n}=pnet_getvar(fid);
    end
    return;
end
while 1,
    dataclass=pnet(fid,'readline',1024);
    switch dataclass,
        case {'double' 'char' 'int8' 'int16' 'int32' 'uint8' 'uint16' 'uint32'}
            datadims=double(pnet(fid,'Read',1,'uint32'));
            datasize=double(pnet(fid,'Read',datadims,'uint32'));
            VAR=pnet(fid,'Read',datasize,dataclass);
            break
        case '--matfile--'
            tmpfile=['temp','.mat'];
            if exist(tmpfile)
                disp('temp.mat exists')
            end

            VAR=[];
            %try,
                bytes=double(pnet(fid,'Read',[1 1],'uint32'));
                pnet(fid,'ReadToFile',tmpfile,bytes);
                load(tmpfile);
            %end
            %try,
                delete(tmpfile);
            %end
            break;
        otherwise
    end
end
varargout{1}=VAR;
return;