A possibility to create Coo and Footprint objects

[szpetny]

Dear Matthieu,
A motivation for this is a fact that we used to rely on code which is currently not exposed in Aladin Lite v3 anymore.
And as a workaround some time ago in the email conversation you proposed to add these new APIs.
If it is still possible, adding this would be very helpful for us :)

[szpetny]

I am not sure why it failed..

[bmatthieu3]

Hi @szpetny ,
Thank you again for your many contributions. Let me merge it. Apart from that, was there any other things to be added in the API that we discussed in that mail ? I remember about HEALPix basic methods but suggested you to use https://www.npmjs.com/package/@fxpineau/healpix

Rethinking about that, I am not against exposing a A.utils.hpxHash and A.utils.hpxCenter basic methods in the Aladin Lite api. @tboch what do you think about that ? @szpetny would you only need those 2 basic Healpix methods or do you need more other methods ?

[tboch]

Rethinking about that, I am not against exposing a A.utils.hpxHash and A.utils.hpxCenter basic methods in the Aladin Lite api. @tboch what do you think about that ? @szpetny would you only need those 2 basic Healpix methods or do you need more other methods ?

I'm not against exposing a small set of HEALPix methods, but we have to draw the line somewhere, otherwise it is certainly better to directly use the library @bmatthieu3 is mentioning.