Reading data that uses 2d lat/lon

[freecodegaku]

The following error is produced when reading 2d lat/lon data .eg. test.nc

julia> Rasters("test.nc", key = :landmask)

julia> Raster(mu; key= :landmask)
typeof(index) = Matrix{Float32}
ERROR: StackOverflowError:
Stacktrace:
  [1] isrev(x::Type) (repeats 17293 times)
    @ DimensionalData.Dimensions.LookupArrays /data2/user/.julia/packages/DimensionalData/DkTAI/src/LookupArrays/lookup_traits.jl:70
  [2] _ncdspan(index::Matrix{Float32}, order::DimensionalData.Dimensions.LookupArrays.Unordered)
    @ Rasters /data2/user/.julia/packages/Rasters/fANS1/src/sources/ncdatasets.jl:327
  [3] _ncdlookup(ds::NCDataset{Nothing}, dimname::String, D::Type, index::Matrix{Float32}, metadata::DimensionalData.Dimensions.LookupArrays.Metadata{Rasters.NCDfile, Dict{Symbol, Any}}, crs::EPSG, mappedcrs::EPSG)
    @ Rasters /data2/user/.julia/packages/Rasters/fANS1/src/sources/ncdatasets.jl:290
  [4] _ncdlookup(ds::NCDataset{Nothing}, dimname::String, D::Type, crs::EPSG, mappedcrs::EPSG)
    @ Rasters /data2/user/.julia/packages/Rasters/fANS1/src/sources/ncdatasets.jl:264
  [5] _ncddim(ds::NCDataset{Nothing}, dimname::String, crs::EPSG, mappedcrs::EPSG)
    @ Rasters /data2/user/.julia/packages/Rasters/fANS1/src/sources/ncdatasets.jl:231
  [6] #725
    @ /data2/user/.julia/packages/Rasters/fANS1/src/sources/ncdatasets.jl:147 [inlined]
  [7] map
    @ ./tuple.jl:222 [inlined]
  [8] dims
    @ /data2/user/.julia/packages/Rasters/fANS1/src/sources/ncdatasets.jl:146 [inlined]
  [9] Raster(ds::NCDatasets.CFVariable{Float32, 2, NCDatasets.Variable{Float32, 2, NCDataset{Nothing}}, NCDatasets.Attributes{NCDataset{Nothing}}, NamedTuple{(:fillvalue, :missing_values, :scale_factor, :add_offset, :calendar, :time_origin, :time_factor), Tuple{Nothing, Tuple{}, Nothing, Nothing, Nothing, Nothing, Nothing}}}, filename::String, key::Symbol; crs::Nothing, mappedcrs::Nothing, dims::Nothing, refdims::Tuple{}, name::Symbol, metadata::DimensionalData.Dimensions.LookupArrays.Metadata{Rasters.NCDfile, Dict{Symbol, Any}}, missingval::Missing, source::Type, write::Bool, lazy::Bool)
    @ Rasters /data2/user/.julia/packages/Rasters/fANS1/src/array.jl:273
 [10] Raster(ds::NCDatasets.CFVariable{Float32, 2, NCDatasets.Variable{Float32, 2, NCDataset{Nothing}}, NCDatasets.Attributes{NCDataset{Nothing}}, NamedTuple{(:fillvalue, :missing_values, :scale_factor, :add_offset, :calendar, :time_origin, :time_factor), Tuple{Nothing, Tuple{}, Nothing, Nothing, Nothing, Nothing, Nothing}}}, filename::String, key::Symbol)
    @ Rasters /data2/user/.julia/packages/Rasters/fANS1/src/array.jl:264
 [11] Raster(ds::NCDataset{Nothing}, filename::String, key::Symbol; kw::Base.Pairs{Symbol, Union{}, Tuple{}, NamedTuple{(), Tuple{}}})
    @ Rasters /data2/user/.julia/packages/Rasters/fANS1/src/sources/ncdatasets.jl:34
 [12] Raster(ds::NCDataset{Nothing}, filename::String, key::Symbol)
    @ Rasters /data2/user/.julia/packages/Rasters/fANS1/src/sources/ncdatasets.jl:32
 [13] (::Rasters.var"#51#52"{Base.Pairs{Symbol, Union{}, Tuple{}, NamedTuple{(), Tuple{}}}, String})(ds::NCDataset{Nothing})
    @ Rasters /data2/user/.julia/packages/Rasters/fANS1/src/array.jl:261
 [14] _open(f::Rasters.var"#51#52"{Base.Pairs{Symbol, Union{}, Tuple{}, NamedTuple{(), Tuple{}}}, String}, ::Type{Rasters.NCDfile}, ds::NCDataset{Nothing}; key::Nothing, kw::Base.Pairs{Symbol, Union{}, Tuple{}, NamedTuple{(), Tuple{}}})
    @ Rasters /data2/user/.julia/packages/Rasters/fANS1/src/sources/ncdatasets.jl:222
 [15] _open
    @ /data2/user/.julia/packages/Rasters/fANS1/src/sources/ncdatasets.jl:221 [inlined]
 [16] #745
    @ /data2/user/.julia/packages/Rasters/fANS1/src/sources/ncdatasets.jl:218 [inlined]
 [17] NCDataset(::Rasters.var"#745#746"{Base.Pairs{Symbol, Union{}, Tuple{}, NamedTuple{(), Tuple{}}}, Rasters.var"#51#52"{Base.Pairs{Symbol, Union{}, Tuple{}, NamedTuple{(), Tuple{}}}, String}}, ::String, ::Vararg{String}; kwargs::Base.Pairs{Symbol, Union{}, Tuple{}, NamedTuple{(), Tuple{}}})
    @ NCDatasets /data2/user/.julia/packages/NCDatasets/ipGBH/src/dataset.jl:241
 [18] NCDataset(::Function, ::String, ::Vararg{String})
    @ NCDatasets /data2/user/.julia/packages/NCDatasets/ipGBH/src/dataset.jl:238
 [19] #_open#744
    @ /data2/user/.julia/packages/Rasters/fANS1/src/sources/ncdatasets.jl:217 [inlined]
 [20] _open(f::Function, ::Type{Rasters.NCDfile}, filename::String)
    @ Rasters /data2/user/.julia/packages/Rasters/fANS1/src/sources/ncdatasets.jl:214
 [21] _open(f::Function, filename::String; kw::Base.Pairs{Symbol, Union{}, Tuple{}, NamedTuple{(), Tuple{}}})
    @ Rasters /data2/user/.julia/packages/Rasters/fANS1/src/convenience.jl:20
 [22] _open
    @ /data2/user/.julia/packages/Rasters/fANS1/src/convenience.jl:19 [inlined]
 [23] #Raster#50
    @ /data2/user/.julia/packages/Rasters/fANS1/src/array.jl:259 [inlined]
 [24] top-level scope
    @ REPL[39]:1

[rafaqz]

Thanks for the report with MWE. It shouldn't be difficult to load these it just has to be written.

Using .. Near and At selectors with these is a harder problem as we will need to search the array in 2 dimensions.