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Rename the Staggered1d grid class Staggered
author Martin Almquist <malmquist@stanford.edu>
date Wed, 29 Apr 2020 21:03:28 -0700
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children 8aa0909125a4
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b673081db86b Rename the Staggered1d grid class Staggered
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1 classdef Staggered < grid.Structured
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2 properties
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3 gridGroups % Cell array of grid groups, each group is a cell array
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4 nGroups % Number of grid groups
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5 h % Interior grid spacing
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6 d % Number of dimensions
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7 end
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8
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9 methods
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10
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11 % Accepts multiple grids and combines them into a staggered grid
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12 % Each grid entry is a cell array of grids that store the same field
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13 function obj = Staggered(d, varargin)
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14 default_arg('d', 2);
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15
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16 obj.d = d;
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17
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18 obj.nGroups = length(varargin);
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19 obj.gridGroups = cell(obj.nGroups, 1);
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20 for i = 1:obj.nGroups
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21 obj.gridGroups{i} = varargin{i};
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22 end
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23
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24 obj.h = [];
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25 end
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26
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27 % N returns the number of points in the first grid group
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28 function o = N(obj)
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29 o = 0;
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30 gs = obj.gridGroups{1};
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31 for i = 1:length(gs)
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32 o = o+gs{i}.N();
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33 end
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34 end
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35
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36 % D returns the spatial dimension of the grid
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37 function o = D(obj)
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38 o = obj.d;
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39 end
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40
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41 % size returns a reference size
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42 function m = size(obj)
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43 m = obj.gridGroups{1}{1};
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44 end
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45
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46 % points returns an n x 1 vector containing the coordinates for the first grid group.
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47 function X = points(obj)
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48 X = [];
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49 gs = obj.gridGroups{1};
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50 for i = 1:length(gs)
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51 X = [X; gs{i}.points()];
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52 end
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53 end
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54
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55 % matrices returns a cell array with coordinates in matrix form.
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56 % For 2d case these will have to be transposed to work with plotting routines.
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57 function X = matrices(obj)
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58 error('grid:Staggered1d:matrices', 'Not implemented')
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59 end
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60
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61 function h = scaling(obj)
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62 if isempty(obj.h)
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63 error('grid:Staggered1d:NoScalingSet', 'No scaling set')
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64 end
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65
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66 h = obj.h;
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67 end
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68
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69 % Restricts the grid function gf on obj to the subgrid g.
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70 % Only works for even multiples
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71 function gf = restrictFunc(obj, gf, g)
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72 error('grid:Staggered1d:NotImplemented','This method does not exist yet')
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73 end
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74
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75 % Projects the grid function gf on obj to the grid g.
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76 function gf = projectFunc(obj, gf, g)
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77 error('grid:Staggered1d:NotImplemented','This method does not exist yet')
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78 end
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79
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80 % Return the names of all boundaries in this grid.
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81 function bs = getBoundaryNames(obj)
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82 switch obj.d()
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83 case 1
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84 bs = {'l', 'r'};
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85 case 2
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86 bs = {'w', 'e', 's', 'n'};
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87 case 3
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88 bs = {'w', 'e', 's', 'n', 'd', 'u'};
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89 otherwise
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90 error('not implemented');
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91 end
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92 end
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93
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94 % Return coordinates for the given boundary
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95 function X = getBoundary(obj, name)
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96 % Use boundaries of first grid
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97 X = obj.gridGroups{1}{1}.getBoundary(name);
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98 end
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99 end
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100 end