[Feature Request] MultiLineString::line_merge

[QIU1995NONAME]

Currently, the geos crate provides a line_merge function that can be used like this:

let multi_line = geos::Geometry::create_multiline_string(lines)?;
let merged = multi_line.line_merge()?;

However, this implementation relies on the GEOS C library, not pure Rust.

Feature Request

Would you consider adding a pure Rust implementation of line_merge in the geo crate?
This would make it possible to perform line merging without depending on native GEOS bindings, improving portability and ease of integration in pure-Rust environments.

[urschrei]

We'd be happy to have a line_merge implementation, but note that feature development in geo is slow, frequently re-prioritised, and we cannot commit to a timeline. Contributions are encouraged, and it seems that at least some of the required pre-requisites already exist – if you'd like help with or input on a PR, please let us know directly and / or on Discord.

[dabreegster]

This has different behavior than the GEOS function and is not rigorously tested, but here's possible inspiration:
https://github.com/a-b-street/utils/blob/main/src/join_lines.rs