Awesome :-)

[neocarto]

Awesome. Do you plan to make it available in Observable? Actually, we absolutely need that! In any case, i'm available for testing.

[chrispahm]

Hi @neocarto 😊

Good call about Observable, I just published a notebook that can be forked/or imported:
https://observablehq.com/@chrispahm/hello-geos-wasm

What are you planning to use it for? Are there certain GEOS functions that you need?

[neocarto]

Hi :-) In R, the spatial ecosystem is based on geos, gdal and proj4. I think we need to be able to do the same in the javascript. So I think that geos is essential and that we should gradually move towards a complete port. In the context of Observable notebooks, I don't think the weight of the lib is a problem.

Unfortunately, I don't have the skills to do this job. I'll try to get started, but first I'll have to understand what you've done.

See also https://observablehq.com/@neocartocnrs/geos-wasm

[chrispahm]

Hey @neocarto,

I just updated the package to include all GEOS functions. As a result of the discussion in #5 this library now just exposes the low-level C-API without any high-level wrapper functions (unlike e.g. shapely or turf).

After reading the blog post from @kylebarron, and also seeing his demo of GeoRust + GeoArrow I'm also sold on his vision of using the Arrow format and GeoRust in the future! So most certainly I won't be putting too much effort into a potential "Shapely.js", and instead wait for geoarrow-rs to mature 😊 I'd also like to contribute but I don't know Rust so there's that...

Anyways, this repo felt like unfinished business, so I thought at least I'd need to bring it to a state where it can be used if desired. That work is mostly finished now, and I've updated the Observable notebook, as well as the API documentation accordingly. There's also a number of test cases that mostly show how the individual functions can be used.

[kylebarron]

I'd also like to contribute but I don't know Rust so there's that...

I'm happy to provide tips and point you to easy first PRs if Rust is something you want to learn!

[chrispahm]

Yes would definitely be interested in that!

[kylebarron]

I made stubs at geoarrow/geoarrow-rs#104 and geoarrow/geoarrow-rs#105, where we can discuss good first issues. I haven't given much thought yet to what are some simpler tasks that are good for intro to rust folks