After performing splitByPlane, the topology of the mesh is changed

[huangdade]

origin mesh:

after split:

I want to keep the origin topology.

[pca006132]

It seems that the feature size is quite small, which causes some vertices to be removed and triangulated again. Which version are you using? I don't think with double precision, we should collapse those vertices...

[pca006132]

Please try the latest version first.

[elalish]

Hmm, yes it should be. It looks like you have the makings of a good test - want to minimize it and submit a PR to show it failing? You can add it right here: https://github.com/elalish/manifold/blob/master/bindings/wasm/examples/bindings.test.ts

[huangdade]

I attached some properties to the vert. It still failed.

[elalish]

Would you mind submitting your failing test as a PR? That's much easier for us to work with than screenshots.

[huangdade]

ok.