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annotate src/Grids/curvilinear_grid.jl @ 1451:2e08f3444354 feature/grids/curvilinear

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Implement boundary_identifiers, and a wishful implementation of boundary_grid
author Jonatan Werpers <jonatan@werpers.com>
date Thu, 23 Nov 2023 16:08:47 +0100
parents 647c8b18b84f
children 58b8da9c7e56
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1 # TBD: Rename to MappedGrid?
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2 struct CurvilinearGrid{T,D, GT<:Grid{<:Any,D}, CT<:AbstractArray{T,D}, JT<:AbstractArray{<:AbstractArray{<:Any, 2}, D}} <: Grid{T,D}
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3 logicalgrid::GT
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4 physicalcoordinates::CT
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5 jacobian::JT
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6 end
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7
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8 jacobian(g::CurvilinearGrid) = g.jacobian
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9 logicalgrid(g::CurvilinearGrid) = g.logicalgrid
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12 # Indexing interface
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13 Base.getindex(g::CurvilinearGrid, I::Vararg{Int}) = g.physicalcoordinates[I...]
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14 Base.eachindex(g::CurvilinearGrid) = eachindex(g.logicalgrid)
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16 Base.firstindex(g::CurvilinearGrid, d) = firstindex(g.logicalgrid, d)
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17 Base.lastindex(g::CurvilinearGrid, d) = lastindex(g.logicalgrid, d)
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19 # Iteration interface
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20
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21 Base.iterate(g::CurvilinearGrid) = iterate(g.physicalcoordinates)
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22 Base.iterate(g::CurvilinearGrid, state) = iterate(g.physicalcoordinates, state)
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24 Base.IteratorSize(::Type{<:CurvilinearGrid{<:Any, D}}) where D = Base.HasShape{D}()
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25 Base.length(g::CurvilinearGrid) = length(g.logicalgrid)
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26 Base.size(g::CurvilinearGrid) = size(g.logicalgrid)
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27 Base.size(g::CurvilinearGrid, d) = size(g.logicalgrid, d)
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29 boundary_identifiers(g::CurvilinearGrid) = boundary_identifiers(g.logicalgrid)
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31 function boundary_grid(g::CurvilinearGrid, id::TensorGridBoundary)
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32 b_indices = boundary_indices(g.logicalgrid, id)
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33 return CurvilinearGrid(
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34 boundary_grid(g.logicalgrid, id),
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35 g.physicalcoordinates[b_indices],
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36 g.jacobian[b_indices],
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37 )
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38 end
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42 # Do we add a convenience function `curvilinear_grid`? It could help with
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43 # creating the logical grid, evaluating functions and possibly calculating the
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44 # entries in the jacobian.
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