Package stc
source code
Support for the IVOA Space-Time-Coordinate data model.
We're dealing with a huge data model here that probably can't be fully
implemented in any sense of the word.
So, we have a stripped down data model in the form of an abstract
syntax tree here (defined in the dm submodule). This can be built
directly or from various input formats (XXXast submodules). From the
AST, you can also build various output formats (XXXgen submodules).
All other operations should be performed on the AST.
Note that this is slow as a dog. I doubt we'll ever see performant
STC implementations. This is really intended for one-shot
transformations, e.g. into functions or a query language. Don't do any
transformations in serious loops.