[galeon] how to handle "slicing" through n-D cubes?

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Hi community,
in the WCS group we are wondering how you deal with subsetting operations in n-D data spaces - obviously a result with less dimensions than the original cube needs to get a different CRS associated. How do you find the appropriate result CRS, for example, for a x/t cut from an x/y/z/t cube? 

thanks in advance for any bits of wisdom,
Peter

--
Dr. Peter Baumann
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