Sean Olson

icon indicating an email [email protected]

icon location Seattle, WA, USA icon location Writing questionable Rust code in a corner somewhere.

Results 55 comments of Sean Olson

Label span is rendered incorrectly in report.

> What do you think this should render as? I think the main problem is that the `here` label doesn't point at the beginning, end, or middle of the relevant...

Perform basic unit-level topology validation when committing mutations.

Introducing a new type like `JournaledStorage` could once again increase the type complexity in Plexus' internals. Currently, storage is accessed via the `AsStorage` trait, which exposes a reference to a...

Reevaluate the constraints on non-manifold topology in graphs.

I think this issue (or others; I'm not yet sure how to organize the work) should track the following changes to graphs: - Disallow singularities. See 7de93ea, which removed their...

Reevaluate the constraints on non-manifold topology in graphs.

Another important observation that's worth noting here: disallowing these non-manifold features has implications for the way that topological mutations work, especially removals. For example, when removing a face, it may...

Expose mutations for removing topology in views.

So far, I'm experimenting with a simple hierarchical model for removals. When topology is removed, any and all dependent topology is also removed. This means that removing faces is the...

Expose mutations for removing topology in views.

> This differs from OpenMesh, which allows topology to be removed individually. Hmm, that's not quite right. In the linked example, removing vertices in OpenMesh implicitly removes their associated edges....

Expose mutations for removing topology in views.

This is nearly fixed; only vertex removal is yet unimplemented and there is a remaining bug in arc removals. Removals are destructive, and will always remove any dependent topology. There...

Is there a way to copy/isolate part of a graph into a new graph?

There is no API for this at the moment, but it's something I've been thinking about. There are two mechanisms that I think may be useful: 1. A method that...

Is there a way to copy/isolate part of a graph into a new graph?

[Here's a first stab](https://github.com/olson-sean-k/plexus/blob/a1fb5981bf71d8b984666454100b60fafcd50c6a/plexus/src/graph/mod.rs#L627) at isolating disjoint subgraphs. It comes with basic vertex traversal features on the same branch. `disjoint_subgraphs` returns an iterator over arbitrary vertices in each disjoint subgraph....

Is there a way to copy/isolate part of a graph into a new graph?

I've been thinking of another way to approach this that may be useful. `MeshGraph` could provide a `split_at_path` function. This would accept a [path](https://plexus.rs/user-guide/graphs/#representation) and "cut" the graph into two...