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annotate src/Function.cc @ 78:670a5d91c397

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Rename the function visible from the user accordingly to dolfin interface. * fem_bc.cc -> DirichletBC.cc * fem_coeff.cc -> Expression.cc * fem_func.cc -> Function.cc
author gedeone-octave <marcovass89@hotmail.it>
date Sat, 03 Aug 2013 14:29:04 +0200
parents src/fem_func.cc@93e538063278
children d03627091414
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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a64e195d0611 Wrapper class for dolfin::Function
gedeone-octave <marco.vassallo@outlook.com>
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1 #include <dolfin.h>
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2 #include "functionspace.h"
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3 #include "function.h"
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4
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5 DEFUN_DLD (Function, args, , "-*- texinfo -*-\n\
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6 @deftypefn {Function File} {[@var{func}]} = \
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7 fem_func (@var{name}, @var{Functional Space}, @var{Vector})\n\
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8 The input parameters are\n\
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9 @itemize @bullet \n\
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10 @item @var{name} is a string representing the name of the function\n\
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11 @item @var{Functional Space} is the fem-fenics functional space where\
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12 the vector is defined\n\
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13 @item @var{Vector} contains the value of the coefficients\
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14 for the basis functions of @var{Functional Space}\n\
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15 @end itemize\n\
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16 The output @var{func} is an object which contain a representation of the\
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17 function @var{Vector} which can be plotted or saved.\n\
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18 @seealso{fem_plot, fem_save}\n\
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19 @end deftypefn")
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20 {
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21
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22 int nargin = args.length ();
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23 octave_value retval=0;
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24
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25 if (nargin < 3 || nargin > 3)
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26 print_usage ();
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27 else
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28 {
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29 if (! functionspace_type_loaded)
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30 {
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31 functionspace::register_type ();
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32 functionspace_type_loaded = true;
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33 mlock ();
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34 }
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35 if (args(1).type_id () == functionspace::static_type_id ())
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36 {
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37 std::string str = args(0).string_value ();
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38 const functionspace & fspo =
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39 static_cast<const functionspace&> (args(1).get_rep ());
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40 Array <double> myu = args(2).array_value ();
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41
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42 if (!error_state)
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43 {
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44 const boost::shared_ptr<const dolfin::FunctionSpace> & V = fspo.get_pfsp ();
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46 if (V->dim () != myu.length ())
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47 error ("The size of the functional space and of the vector must agree");
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48 else
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49 {
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50 dolfin::Vector du(myu.length ());
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51 for (std::size_t i = 0; i < myu.length (); ++i)
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52 du.setitem (i, myu(i));
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54 boost::shared_ptr<dolfin::Vector> uu (new dolfin::Vector(du));
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55 boost::shared_ptr <const dolfin::Function> u (new dolfin::Function(V, uu));
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57 if (! function_type_loaded)
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58 {
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59 function::register_type ();
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60 function_type_loaded = true;
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61 mlock ();
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62 }
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63
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64 retval = new function (str, u);
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65 }
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66 }
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67 }
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68 }
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69 return retval;
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70 }