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comparison src/SbpOperators/boundaryops/boundary_restriction.jl @ 581:ea4176a5dfc5 feature/boundary_ops

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Implement boundary_restriction in a dimension independent way
author Jonatan Werpers <jonatan@werpers.com>
date Tue, 01 Dec 2020 17:31:30 +0100
parents cae4d5b428d6
children aa44edea36fc
comparison
equal deleted inserted replaced
577:cae4d5b428d6 581:ea4176a5dfc5
1 """ 1 """
2 boundary_restriction(grid,closureStencil,boundary) 2 boundary_restriction(grid,closureStencil,boundary)
3 3
4 Creates a BoundaryRestriction operator for the specified boundary 4 Creates a BoundaryRestriction operator for the specified boundary
5 """ 5 """
6 function boundary_restriction(grid::EquidistantGrid{1}, closureStencil::Stencil, boundary::CartesianBoundary{1}) 6 function boundary_restriction(grid::EquidistantGrid{D,T}, closureStencil::Stencil{T,M}, boundary::CartesianBoundary) where {D,T,M}
7 return e = BoundaryRestriction(grid, closureStencil, region(boundary)) 7 r = region(boundary)
8 d = dim(boundary)
9 e = BoundaryRestriction(restrict(grid, d), closureStencil, r)
10
11 one_d_grids = restrict.(Ref(grid), tuple(1:D))
12 Is = IdentityMapping{T}.(size.(one_d_grids))
13 parts = Base.setindex(Is, e, d)
14 return foldl(⊗, parts)
8 end 15 end
9 16
10 function boundary_restriction(grid::EquidistantGrid{2,T}, closureStencil::Stencil{T}, boundary::CartesianBoundary{1}) where T
11 e = BoundaryRestriction(restrict(grid, 1), closureStencil, region(boundary))
12 I = IdentityMapping{T}(size(restrict(grid,2)))
13 return e⊗I
14 end
15
16 function boundary_restriction(grid::EquidistantGrid{2,T}, closureStencil::Stencil{T}, boundary::CartesianBoundary{2}) where T
17 e = BoundaryRestriction(restrict(grid, 2), closureStencil, region(boundary))
18 I = IdentityMapping{T}(size(restrict(grid,1)))
19 return I⊗e
20 end
21 export boundary_restriction 17 export boundary_restriction
22 18
23 """ 19 """
24 BoundaryRestriction{T,R,N} <: TensorMapping{T,0,1} 20 BoundaryRestriction{T,R,N} <: TensorMapping{T,0,1}
25 21