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Allow get_region(grid::UnstructuredVectorGrid, values) for a single-cell grid #144

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Dec 5, 2024
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Allow get_region(grid::UnstructuredVectorGrid, values) for a single-cell grid #144

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9 changes: 9 additions & 0 deletions src/Grids.jl
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Original file line number Diff line number Diff line change
Expand Up @@ -276,9 +276,12 @@ cartesian_to_internal(grid::UnstructuredVectorGrid, griddata::AbstractArray) = g
"""
get_region(grid::UnstructuredVectorGrid, values; cell) ->
values_subset, (dim_subset::NamedDimension, ...)
get_region(grid::UnstructuredVectorGrid, values)

# Keywords for region selection:
- `cell::Union{Int, Symbol}`: an Int, or a Symbol to look up in `cellnames`

`get_region(grid, values)` is also allowed for a single-cell Domain,
"""
function get_region(grid::UnstructuredVectorGrid, values; cell::Union{Int, Symbol})
if cell isa Int
Expand All @@ -295,6 +298,12 @@ function get_region(grid::UnstructuredVectorGrid, values; cell::Union{Int, Symbo
)
end

function get_region(grid::UnstructuredVectorGrid, values)
grid.ncells == 1 || throw(ArgumentError("'cell' argument is required for an UnstructuredVectorGrid with > 1 cell"))

return get_region(grid, values; cell=1)
end

"""
create_default_cellrange(domain, grid::UnstructuredVectorGrid [; operatorID=0]) -> CellRange

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