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Added Python-like interpolate
author Eugenio Gianniti <eugenio.gianniti@mail.polimi.it>
date Sat, 17 May 2014 17:16:58 +0200
parents 8a3361bfa434
children 470586565dc7
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1 /*
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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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5 the terms of the GNU General Public License as published by the Free Software
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6 Foundation; either version 3 of the License, or (at your option) any later
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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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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 "coefficient.h"
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19 #include "function.h"
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20 #include "functionspace.h"
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21
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22 DEFUN_DLD (interpolate, args, nargout, "-*- texinfo -*-\n\
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23 @deftypefn {Function File} @var{interp} = \
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24 interpolate (@var{Function}, @var{v})\n\
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25 interpolate (@var{v}, @var{FunctionSpace})\n\
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26 Interpolate a function on a FunctionSpace.\n\
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27 This function can be used in two ways:\n\
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28 @itemize @bullet\n\
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29 @item To interpolate a Function, Expression or Constant, \
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30 @var{v}, on the same FunctionSpace of a @var{Function}\n\
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31 @item To interpolate a Function, Expression or Constant, \
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32 @var{v}, on a given @var{FunctionSpace}\n\
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33 @end itemize\n\
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34 @seealso{Function, Expression, Constant, FunctionSpace}\n\
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35 @end deftypefn")
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36 {
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37
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38 int nargin = args.length ();
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39 octave_value retval;
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40
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41 if (nargin < 2 || nargin > 2 || nargout > 1)
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42 print_usage ();
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43 else
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44 {
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45 if (! function_type_loaded)
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46 {
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47 function::register_type ();
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48 function_type_loaded = true;
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49 mlock ();
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50 }
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51
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52 if (! coefficient_type_loaded)
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53 {
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54 coefficient::register_type ();
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55 coefficient_type_loaded = true;
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56 mlock ();
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57 }
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58
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59 if (! functionspace_type_loaded)
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60 {
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61 functionspace::register_type ();
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62 functionspace_type_loaded = true;
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63 mlock ();
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64 }
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65
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66 if (args(1).type_id () == functionspace::static_type_id ())
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67 {
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68 const functionspace & u1 =
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69 static_cast<const functionspace&> (args(1).get_rep ());
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70
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71 if (! error_state)
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72 {
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73 boost::shared_ptr<dolfin::Function>
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74 output (new dolfin::Function (u1.get_pfsp ()));
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75
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76 if (args(0).type_id () == function::static_type_id ())
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77 {
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78 const function & u0 =
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79 static_cast<const function&> (args(0).get_rep ());
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80
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81 if (! error_state)
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82 {
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83 output->interpolate (u0.get_fun ());
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84 std::string name = u0.get_str ();
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85 retval = new function (name, output);
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86 }
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87 }
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88 else if (args(0).type_id () == coefficient::static_type_id ())
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89 {
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90 const coefficient & u0 =
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91 static_cast<const coefficient&> (args(0).get_rep ());
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92
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93 if (! error_state)
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94 {
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95 output->interpolate (* u0.get_expr ());
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96 std::string name = u0.get_str ();
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97 retval = new function (name, output);
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98 }
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99 }
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100 else
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101 error ("interpolate: invalid arguments");
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102 }
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103 }
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104 else if (args(0).type_id () == function::static_type_id ())
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105 {
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106 const function & u0 =
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107 static_cast<const function&> (args(0).get_rep ());
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108
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109 if (! error_state)
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110 {
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111 boost::shared_ptr<dolfin::Function>
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112 output (new dolfin::Function (u0.get_fun ()));
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113
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114 if (args(1).type_id () == function::static_type_id ())
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115 {
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116 const function & u1 =
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117 static_cast<const function&> (args(1).get_rep ());
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118
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119 if (! error_state)
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120 {
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121 output->interpolate (u1.get_fun ());
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122 std::string name = u1.get_str ();
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123 retval = new function (name, output);
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124 }
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125 }
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126 else if (args(1).type_id () == coefficient::static_type_id ())
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127 {
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128 const coefficient & u1 =
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129 static_cast<const coefficient&> (args(1).get_rep ());
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130
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131 if (! error_state)
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132 {
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133 output->interpolate (* u1.get_expr ());
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134 std::string name = u1.get_str ();
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135 retval = new function (name, output);
a13b7d744b86 Added Python-like interpolate
Eugenio Gianniti <eugenio.gianniti@mail.polimi.it>
parents: 218
diff changeset
136 }
a13b7d744b86 Added Python-like interpolate
Eugenio Gianniti <eugenio.gianniti@mail.polimi.it>
parents: 218
diff changeset
137 }
a13b7d744b86 Added Python-like interpolate
Eugenio Gianniti <eugenio.gianniti@mail.polimi.it>
parents: 218
diff changeset
138 else
a13b7d744b86 Added Python-like interpolate
Eugenio Gianniti <eugenio.gianniti@mail.polimi.it>
parents: 218
diff changeset
139 error ("interpolate: invalid arguments");
218
8a3361bfa434 interpolate function added
Eugenio Gianniti <eugenio.gianniti@mail.polimi.it>
parents:
diff changeset
140 }
8a3361bfa434 interpolate function added
Eugenio Gianniti <eugenio.gianniti@mail.polimi.it>
parents:
diff changeset
141 }
219
a13b7d744b86 Added Python-like interpolate
Eugenio Gianniti <eugenio.gianniti@mail.polimi.it>
parents: 218
diff changeset
142 else
a13b7d744b86 Added Python-like interpolate
Eugenio Gianniti <eugenio.gianniti@mail.polimi.it>
parents: 218
diff changeset
143 error ("interpolate: invalid arguments");
218
8a3361bfa434 interpolate function added
Eugenio Gianniti <eugenio.gianniti@mail.polimi.it>
parents:
diff changeset
144 }
8a3361bfa434 interpolate function added
Eugenio Gianniti <eugenio.gianniti@mail.polimi.it>
parents:
diff changeset
145 return retval;
8a3361bfa434 interpolate function added
Eugenio Gianniti <eugenio.gianniti@mail.polimi.it>
parents:
diff changeset
146 }