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annotate +multiblock/Grid.m @ 539:08b6281ba2a9 feature/grids

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Add some todos
author Jonatan Werpers <jonatan@werpers.com>
date Tue, 08 Aug 2017 13:25:19 +0200
parents d5bc51537a8c
children 1fe16b34f114
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rev   line source
186
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1 classdef Grid < grid.Grid
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2 properties
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3 grids
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4 connections
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5 boundaryGroups
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6
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7 nPoints
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8 end
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9
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10 % General multiblock grid
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11 methods
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12 % grids -- cell array of N grids
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13 % connections -- NxN upper triangular cell matrix. connections{i,j}
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14 % specifies the connection between block i and j. If
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15 % it's empty there is no connection otherwise it's a 2
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16 % -cell-vector with strings naming the boundaries to be
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17 % connected. (inverted coupling?)
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18 % boundaryGroups -- A struct of BoundaryGroups. The field names of the
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19 % struct are the names of each boundary group.
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20 % The boundary groups can be used to collect block
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21 % boundaries into physical boundaries to simplify
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22 % getting boundary operators and setting boundary conditions
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23 function obj = Grid(grids, connections, boundaryGroups)
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24 default_arg('boundaryGroups', struct());
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25 obj.grids = grids;
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26 obj.connections = connections;
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27
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28 obj.nPoints = 0;
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29 for i = 1:length(grids)
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30 obj.nPoints = obj.nPoints + grids{i}.N();
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31 end
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32
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33 obj.boundaryGroups = boundaryGroups;
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34 end
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35
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36 function n = size(obj)
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37 n = length(obj.grids);
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38 end
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39
233
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40 % N returns the number of points in the grid
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41 function o = N(obj)
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42 o = obj.nPoints;
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43 end
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44
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45 % Ns returns the number of points in each sub grid as a vector
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46 function o = Ns(obj)
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47 ns = zeros(1,obj.nBlocks);
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48 for i = 1:obj.nBlocks;
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49 ns(i) = obj.grids{i}.N();
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50 end
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51 o = ns;
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52 end
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53
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54 function n = nBlocks(obj)
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55 n = length(obj.grids);
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56 end
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57
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58 % d returns the spatial dimension of the grid
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59 function o = D(obj)
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60 o = obj.grids{1}.D();
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61 end
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62
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63 % points returns a n x d matrix containing the coordinates for all points.
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64 function X = points(obj)
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65 X = [];
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66 for i = 1:length(obj.grids)
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67 X = [X; obj.grids{i}.points];
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68 end
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69 end
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70
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71 % Split a grid function on obj to a cell array of grid function on each block
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72 function gfs = splitFunc(obj, gf)
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73 nComponents = length(gf)/obj.nPoints;
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74 nBlocks = length(obj.grids);
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75
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76 % Collect number of points in each block
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77 N = zeros(1,nBlocks);
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78 for i = 1:nBlocks
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79 N(i) = obj.grids{i}.N();
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80 end
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81
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82 gfs = mat2cell(gf, N, 1);
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83 end
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84
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85 % TODO: Split op?
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86 % Should the method to split an operator be moved here instead of being in multiblock.DiffOp?
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87
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88 % Converts a gridfunction to a set of plot matrices
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89 % Takes a grid function and and a structured grid.
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90 function F = funcToPlotMatrices(obj, gf)
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91 gfs = obj.splitFunc(gf);
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92
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93 F = cell(1, obj.nBlocks());
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94
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95 for i = 1:obj.nBlocks()
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96 F{i} = grid.funcToPlotMatrix(obj.grids{i}, gfs{i});
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97 end
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98 end
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99
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100
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101 % Restricts the grid function gf on obj to the subgrid g.
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102 function gf = restrictFunc(obj, gf, g)
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103 gfs = obj.splitFunc(gf);
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104
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105 for i = 1:length(obj.grids)
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106 gfs{i} = obj.grids{i}.restrictFunc(gfs{i}, g.grids{i});
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107 end
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108
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109 gf = cell2mat(gfs);
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110 end
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111
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112 % Projects the grid function gf on obj to the grid g.
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113 function o = projectFunc(obj, gf, g)
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114 error('not implemented')
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115
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116 p = g.points();
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117 o = zeros(length(p),1);
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118 for i = 1:length(p)
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119 I = whatGrid(p(i));
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120 o(i) = obj.grids{I}.projectFunc(gf, p(i));
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121 end
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123
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124 function I = whatGrid(p)
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125 % Find what grid a point lies on
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126 end
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127
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128 end
189
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129
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130 % Find all non interface boundaries of all blocks.
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131 % Return their grid.boundaryIdentifiers in a cell array.
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132 function bs = getBoundaryNames(obj)
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133 bs = {};
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134 for i = 1:obj.nBlocks()
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135 candidates = obj.grids{i}.getBoundaryNames();
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136 for j = 1:obj.nBlocks()
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137 if ~isempty(obj.connections{i,j})
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138 candidates = setdiff(candidates, obj.connections{i,j}{1});
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139 end
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140
d5bc51537a8c Implement getBoundaryNames in multiblock.Grid
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141 if ~isempty(obj.connections{j,i})
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142 candidates = setdiff(candidates, obj.connections{j,i}{2});
d5bc51537a8c Implement getBoundaryNames in multiblock.Grid
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143 end
d5bc51537a8c Implement getBoundaryNames in multiblock.Grid
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144 end
d5bc51537a8c Implement getBoundaryNames in multiblock.Grid
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145
d5bc51537a8c Implement getBoundaryNames in multiblock.Grid
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146 for k = 1:length(candidates)
d5bc51537a8c Implement getBoundaryNames in multiblock.Grid
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147 bs{end+1} = {i, candidates{k}};
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148 end
d5bc51537a8c Implement getBoundaryNames in multiblock.Grid
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149 end
189
6054dcd3c8a9 Added a class for boundary groups. Added methods stubs and failing tests.
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150 end
6054dcd3c8a9 Added a class for boundary groups. Added methods stubs and failing tests.
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151
529
2ec8080027ab Add some documentation and decide on public function signatures
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152 % Return coordinates for the given boundary/boundaryGroup
530
0cd7b8128e04 Implement getBoundary in multiblock.Grid
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153 function b = getBoundary(obj, boundary)
0cd7b8128e04 Implement getBoundary in multiblock.Grid
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154 switch class(boundary)
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155 case 'cell'
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156 I = boundary{1};
0cd7b8128e04 Implement getBoundary in multiblock.Grid
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157 name = boundary{2};
0cd7b8128e04 Implement getBoundary in multiblock.Grid
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158 b = obj.grids{I}.getBoundary(name);
0cd7b8128e04 Implement getBoundary in multiblock.Grid
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159 case 'multiblock.BoundaryGroup'
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160 b = [];
0cd7b8128e04 Implement getBoundary in multiblock.Grid
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161 for i = 1:length(boundary)
0cd7b8128e04 Implement getBoundary in multiblock.Grid
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162 b = [b; obj.getBoundary(boundary{i})];
0cd7b8128e04 Implement getBoundary in multiblock.Grid
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163 end
0cd7b8128e04 Implement getBoundary in multiblock.Grid
Jonatan Werpers <jonatan@werpers.com>
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164 otherwise
0cd7b8128e04 Implement getBoundary in multiblock.Grid
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165 error('Unknown boundary indentifier')
0cd7b8128e04 Implement getBoundary in multiblock.Grid
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166 end
189
6054dcd3c8a9 Added a class for boundary groups. Added methods stubs and failing tests.
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167 end
153
7aee9eba3bb8 Added abstract classes for some different types of grids.
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168 end
155
cf748f33cd5b Removed some extra lines, added some notes and comments. Fixed classname.
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169 end