extent(dd, dims=Dimensions)

[felixcremer]

I am wondering whether it would make sense to overload extent from Extents to allow for a dims keyword that would handle DimensionalData dimensions to select only certain dimensions.

One use case is in working with multi dimensional data cubes which have spatial dimensions but also a Band and a time dimension and now I want the spatial bounding box for further analysis.

[rafaqz]

Good idea. So we dispatch on AbstractBasicDimArray, AbstractDimStack, AbstractDimTree and DimTuple and add the keyword?

[felixcremer]

Why AbstractBasicDimArray and not AbstractDimArray? I really don't know the difference.

[rafaqz]

So it works on DimSelectors etc.

They can't be AbstractDimArray because they have no parent array and heaps of things expect that. So AbstractBasicDimArray is a less strict version for these generator array things that still have dimensions

[felixcremer]

I just realised, that we acutally have bounds which does basically what I want but it doesn't wrap the results in an Extent.
What are the differences between bounds and extent?

[rafaqz]

bounds is just older, and is just a Tuple of Tuples. I think the extent is made from the bounds?