Benoit Bovy

> There is no central point in the ecosystem which manages these semantics; perhaps that's the core issue. [xproj](https://github.com/xarray-contrib/xproj) is trying to address this issue, at least in the Xarray...

> have you had any conversations with those maintainers? Yes, at least in a few discussion threads. > I wonder what it would take for odc-geo, rioxarray, xee, etc. to...

The refactor of Dataset internals may (should?) be an opportunity to also refactor coordinates and indexes proxies. The current situation is quite messy and fragile: - `Coordinates` is a virtual...

Sorry haven't replied yet @carloshorn, I've not maintained this repository since quite some time and still don't have much time for it. Adding TBB support is welcome. I'll try to...

I think that the reverting change in IndexVariable came after refactoring copy in Xarray introduced some performance regression (https://github.com/pydata/xarray/pull/7209#issuecomment-1305593478). I didn't see #1463 (https://github.com/pydata/xarray/issues/1463#issuecomment-340454702), though. It feels weird to me...

Yes I think we should, but I might have missed the rationale behind allowing it if this is intentional. EDIT: perhaps better to issue a warning first to avoid some...

There are two issues: - whether we should continue allowing IndexVariable data be updated in place via `.data` property. IMO we should really deprecate it, especially that now it is...

One big challenge (likely a blocker) in reconciling GCPs and CF tie points is that, to my understanding, the latter is used to define the corners of rectilinear interpolation subareas...

> Judging by the [GDAL docs](https://gdal.org/en/stable/doxygen/structGDAL__GCP.html) (Line and Pixel are double precision numbers, not pixel index), tie points don't have to be "pixel centers", so one should be able to...

> I have hope, that those issues would be fixed in a possible dedicated package as laid out in that other xarray issue https://github.com/pydata/xarray/issues/2288. There you go: https://github.com/benbovy/xproj :-) Still...