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annotate src/SbpOperators/boundaryops/boundary_restriction.jl @ 1104:c0ab81e4c39c refactor/sbpoperators/inflation

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Update docs
author Vidar Stiernström <vidar.stiernstrom@it.uu.se>
date Fri, 20 May 2022 11:30:46 +0200
parents 157a78959e5d
children 1cc45207817e
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1 """
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2 boundary_restriction(grid, closure_stencil::Stencil, boundary)
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4 Creates boundary restriction operators `e` as `LazyTensor`s on `boundary`
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6 `e` is the restriction of a grid function to `boundary` using a `Stencil` `closure_stencil`.
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7 `e'` is the prolongation of a grid function on `boundary` to the whole grid using the same `closure_stencil`.
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8 On a one-dimensional `grid`, `e` is a `BoundaryOperator`. On a multi-dimensional `grid`, `e` is the inflation of
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9 a `BoundaryOperator`.
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10
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11 See also: [`BoundaryOperator`](@ref), [`LazyTensors.inflate`](@ref).
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12 """
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13 function boundary_restriction(grid, closure_stencil, boundary)
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14 converted_stencil = convert(Stencil{eltype(grid)}, closure_stencil)
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16 op = BoundaryOperator(restrict(grid, dim(boundary)), converted_stencil, region(boundary))
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17 return LazyTensors.inflate(op, size(grid), dim(boundary))
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18 end
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20 """
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21 boundary_restriction(grid, stencil_set, boundary)
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23 Creates a `boundary_restriction` operator on `grid` given a `stencil_set`.
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24 """
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25 boundary_restriction(grid, stencil_set::StencilSet, boundary) = boundary_restriction(grid, parse_stencil(stencil_set["e"]["closure"]), boundary)