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annotate src/interpolate.cc @ 218:8a3361bfa434

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interpolate function added
author Eugenio Gianniti <eugenio.gianniti@mail.polimi.it>
date Mon, 12 May 2014 21:38:35 +0200
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children a13b7d744b86
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Eugenio Gianniti <eugenio.gianniti@mail.polimi.it>
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1 /*
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Eugenio Gianniti <eugenio.gianniti@mail.polimi.it>
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2 Copyright (C) 2014 Eugenio Gianniti <eugenio.gianniti@mail.polimi.it>
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3
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4 This program is free software; you can redistribute it and/or modify it under
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Eugenio Gianniti <eugenio.gianniti@mail.polimi.it>
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5 the terms of the GNU General Public License as published by the Free Software
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Eugenio Gianniti <eugenio.gianniti@mail.polimi.it>
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6 Foundation; either version 3 of the License, or (at your option) any later
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Eugenio Gianniti <eugenio.gianniti@mail.polimi.it>
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7 version.
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8
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9 This program is distributed in the hope that it will be useful, but WITHOUT
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10 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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Eugenio Gianniti <eugenio.gianniti@mail.polimi.it>
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11 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
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12 details.
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13
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14 You should have received a copy of the GNU General Public License along with
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15 this program; if not, see <http://www.gnu.org/licenses/>.
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16 */
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17
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18 #include "function.h"
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19
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20 DEFUN_DLD (interpolate, args, nargout, "-*- texinfo -*-\n\
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21 @deftypefn {Function File} @var{interpolated} =\
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Eugenio Gianniti <eugenio.gianniti@mail.polimi.it>
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22 interpolate (@var{f}, @var{g})\n\
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23 Interpolate Function @var{g} on @var{f}'s space. \n\
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24 @seealso{Function}\n\
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25 @end deftypefn")
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26 {
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27
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28 int nargin = args.length ();
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29 octave_value retval;
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30
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31 if (nargin < 2 || nargin > 2 || nargout > 1)
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32 print_usage ();
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33 else
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34 {
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35 if (! function_type_loaded)
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36 {
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37 function::register_type ();
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38 function_type_loaded = true;
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39 mlock ();
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40 }
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41
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42 if (args(0).type_id () == function::static_type_id () &&
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43 args(1).type_id () == function::static_type_id ())
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44 {
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45 const function & u0 =
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46 static_cast<const function&> (args(0).get_rep ());
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47 const function & u1 =
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48 static_cast<const function&> (args(1).get_rep ());
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49
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50 if (!error_state)
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51 {
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52 boost::shared_ptr<dolfin::Function>
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53 output (new dolfin::Function (u0.get_fun ()));
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54 const dolfin::Function &
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55 input = u1.get_fun ();
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56
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57 output->interpolate (input);
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58 std::string name = u1.get_str ();
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59
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60 retval = new function (name, output);
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61 }
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62 }
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63 }
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64 return retval;
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65 }