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annotate src/Grids/grid.jl @ 1288:7de1df0aad6a refactor/grids

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Add component_type function to Grid
author Jonatan Werpers <jonatan@werpers.com>
date Fri, 03 Mar 2023 15:42:05 +0100
parents 1157f889bf50
children 3b7ebd135918
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1 """
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2 Grid{T,D}
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3
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4 The top level type for grids.
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5
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6 TODO:
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7 Should implement
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8 * interfaces for iteration and indexing
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9 """
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10 abstract type Grid{T,D} end
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11
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12 Base.ndims(::Grid{T,D}) where {T,D} = D
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13 Base.eltype(::Type{<:Grid{T}}) where T = T
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14 target_manifold_dim(::Grid{T}) where T = _ncomponents(T) # TBD: Name of this function?!
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15 component_type(::Grid{T}) where T = eltype(T)
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16
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17 """
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18 # TODO
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19 """
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20 function refine end
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21
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22 """
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23 # TODO
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24 """
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25 function coarsen end
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26
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27 """
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28 # TODO
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29 """
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30 function boundary_identifiers end
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31
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32 """
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33 # TODO
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34 """
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35 function boundary_grid end
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36 # TBD Can we implement a version here that accepts multiple ids and grouped boundaries? Maybe we need multiblock stuff?
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39 # TODO: Make sure that all grids implement all of the above.
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41 """
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42 dims(grid::Grid)
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43
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44 Enumerate the dimensions of the grid.
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45 """
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46 dims(grid::Grid) = 1:ndims(grid)
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47 # TBD: Is this function needed? Where is it used
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48 """
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49 TODO:
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50
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51 * Mention map(f,g) if you want a concrete array
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52 """
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53 eval_on(g::Grid, f) = eval_on(g, f, Base.IteratorSize(g)) # TBD: Borde f vara först som i alla map, sum, och dylikt
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54 function eval_on(g::Grid, f, ::Base.HasShape)
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55 if hasmethod(f, (Any,))
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56 return LazyTensors.LazyFunctionArray((I...)->f(g[I...]), size(g))
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57 else
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58 return LazyTensors.LazyFunctionArray((I...)->f(g[I...]...), size(g))
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59 end
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60 end
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63 # TODO: Explain how and where these are intended to be used
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64 _ncomponents(::Type{<:Number}) = 1
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65 _ncomponents(T::Type{<:SVector}) = length(T)
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67 _component_type(T::Type{<:Number}) = T
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68 _component_type(T::Type{<:SVector}) = eltype(T)