Mercurial > repos > public > sbplib_julia
diff src/SbpOperators/boundaryops/boundary_restriction.jl @ 925:6b47a9ee1632 feature/laplace_opset
Add functionality for creating operators from a stencil set. Note: Tests are not updated yet!
author | Vidar Stiernström <vidar.stiernstrom@it.uu.se> |
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date | Mon, 21 Feb 2022 13:13:37 +0100 |
parents | 86776d06b883 |
children | 22c80fb36400 |
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--- a/src/SbpOperators/boundaryops/boundary_restriction.jl Mon Feb 21 13:12:47 2022 +0100 +++ b/src/SbpOperators/boundaryops/boundary_restriction.jl Mon Feb 21 13:13:37 2022 +0100 @@ -1,16 +1,22 @@ """ - boundary_restriction(grid::EquidistantGrid, closure_stencil::Stencil, boundary::CartesianBoundary) - boundary_restriction(grid::EquidistantGrid{1}, closure_stencil::Stencil, region::Region) + boundary_restriction(grid, closure_stencil::Stencil, boundary) -Creates the boundary restriction operator `e` as a `TensorMapping` +Creates boundary restriction operators `e` as `TensorMapping`s on `boundary` -`e` is the restriction of a grid function to the boundary specified by `boundary` or `region` using some `closure_stencil`. -`e'` is the prolongation of a grid function on the boundary to the whole grid using the same `closure_stencil`. +`e` is the restriction of a grid function to `boundary` using a `Stencil` `closure_stencil`. +`e'` is the prolongation of a grid function on `boundary`` to the whole grid using the same `closure_stencil`. On a one-dimensional `grid`, `e` is a `BoundaryOperator`. On a multi-dimensional `grid`, `e` is the inflation of -a `BoundaryOperator`. Also see the documentation of `SbpOperators.boundary_operator(...)` for more details. +a `BoundaryOperator`. See also [`SbpOperators.boundary_operator`](@ref). """ -function boundary_restriction(grid::EquidistantGrid, closure_stencil, boundary::CartesianBoundary) +function boundary_restriction(grid, closure_stencil::Stencil, boundary) converted_stencil = convert(Stencil{eltype(grid)}, closure_stencil) return SbpOperators.boundary_operator(grid, converted_stencil, boundary) end -boundary_restriction(grid::EquidistantGrid{1}, closure_stencil, region::Region) = boundary_restriction(grid, closure_stencil, CartesianBoundary{1,typeof(region)}()) + +""" + boundary_restriction(grid, stencil_set, boundary) + +Creates a `boundary_restriction` operator on `grid` given a parsed TOML +`stencil_set`. +""" +boundary_restriction(grid, stencil_set, boundary) = boundary_restriction(grid, parse_stencil(stencil_set["e"]["closure"]), boundary)