WASM support

[hrgdavor]

Ma preferred environment is JS for doing code-CAD. It would be great is there is a build here or a fork as WASM. It would be lovely if this great library would be accessible for JS.

[geotyper]

Use this library with Emscripten, compile it ti WASM. Dont have any problems.

[hrgdavor]

Hi, that is cool to know. But I have no experience with Emscripten. @geotyper do you use Clipper2 as WASM for your own project ?
It would be a big learning curve for me, and that is why I am asking if someone else has done it that could provide a WASM build.
Also I work on windows which complicated any of my previous attempts to compile C code.

[geotyper]

Yes, use it for own project, as result received js file, wasm file and data file. In wasm includes all libs and my own code. Can try to complie Clipper standalone, but main problem is to build interface to Clipper functions, think it not builds automatically. need read about this. And yes after lunix windows have some specific in compile c++ code.

[hrgdavor]

if you would be willing to setup a repo that can build a WASM Clipper2. ❤️

[FishOrBear]

I have been using this library for a long time https://www.npmjs.com/package/js-angusj-clipper

It would be great if Clipper2 could support wasm.

[AngusJohnson]

I'd be happy to provide a link to a WASM version of Clipper2 in Clipper2's ReadMe if someone were to create it and host it on GitHub.

[ErikSom]

@AngusJohnson I've created a WASM port here:
https://github.com/ErikSom/Clipper2-WASM/

[ErikSom]

@AngusJohnson - should Clipper2 outperform Clipper1 in terms of ops per time? Or is it slower because its more precise? I'm running some benchmark and currently Clipper1 is outperforming Clipper2 and im still investigating exactly why that is.

[AngusJohnson]

should Clipper2 outperform Clipper1 in terms of ops per time?

Usually yes, though there are a few circumstances where it doesn't.
For example, Clipper2 works much harder to ensure solutions as simple as possible (with fewer touching edges), and this is time costly (especially when there are many horizontal edges).

I'm certainly interested if you have examples where Clipper1 significantly outperforms Clipper2 (though I suggest you do that in a separate Discussion 😜).