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Using TPS mats interpolation while projection #43

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May 1, 2024
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Using TPS mats interpolation while projection #43

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21 changes: 11 additions & 10 deletions src/subset_tools.jl
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Original file line number Diff line number Diff line change
Expand Up @@ -225,6 +225,9 @@ function get_subset_centers(space::IMASDD.edge_profiles__grid_ggd___space,
subset::IMASDD.edge_profiles__grid_ggd___grid_subset,
)
subset_space = get_subset_space(space, subset.element)
if subset.element[1].object[1].dimension == 1
return [Tuple(obj.geometry) for obj ∈ subset_space]
end
grid_nodes = space.objects_per_dimension[1].object
return [
Tuple(mean(SVector{2}(grid_nodes[node].geometry) for node ∈ obj.nodes)) for
Expand Down Expand Up @@ -279,9 +282,11 @@ function project_prop_on_subset!(prop_arr::AbstractVector{T},
to_subset::IMASDD.edge_profiles__grid_ggd___grid_subset,
space::IMASDD.edge_profiles__grid_ggd___space,
value_field::Symbol=:values;
interp_method::Symbol=:thin_plate_spline,
interp_kwargs=Dict(),
) where {T <: edge_profiles__prop_on_subset}
TPS_mats::Union{
Nothing,
Tuple{Matrix{U}, Matrix{U}, Matrix{U}, Vector{Tuple{U, U}}},
}=nothing,
) where {T <: edge_profiles__prop_on_subset, U <: Real}
if from_subset.element[1].object[1].dimension ==
to_subset.element[1].object[1].dimension
return project_prop_on_subset!(prop, from_subset, to_subset)
Expand All @@ -300,17 +305,13 @@ function project_prop_on_subset!(prop_arr::AbstractVector{T},
to_prop_values = getfield(to_prop, value_field)
from_prop_values = getfield(from_prop, value_field)
resize!(to_prop_values, length(to_subset.element))
if interp_method == :thin_plate_spline
if isnothing(TPS_mats)
prop_interp = interp(prop_arr, space, from_subset)
elseif interp_method == :KDTree
prop_interp = interp(
from_prop_values,
get_kdtree(space, from_subset; interp_kwargs...),
)
else
error("Supported interpolation methods are :thin_plate_spline and :KDTree")
prop_interp = interp(from_prop_values, TPS_mats)
end
to_prop_values = prop_interp.(to_subset_centers)
setproperty!(to_prop, value_field, to_prop_values)
return to_subset_centers, to_prop_values
else
error("to_subset is higher dimensional than from_subset")
Expand Down