Add line segmentize trait

[JosiahParry]

• I agree to follow the project's code of conduct.
• I added an entry to CHANGES.md if knowledge of this change could be valuable to users.

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This PR adds a new trait LineStringSegmentize which provides a method line_segmentize(n: usize) to split LineStrings inton equal length LineStrings which are returned as an Option<MultiLineString> . This is inspired by the lwgeom R package which wraps liblwgeom from PostGIS.

[urschrei]

Looks like Clippy still isn't happy. Do you see those failures when you run it locally?

[JosiahParry]

I pulled the most recent changes from main and CI is failing unrelated to my changes.

  failed to query replaced source registry `crates-io`

[michaelkirk]

A couple lines further up in the failed action output shows:

   Updating crates.io index
warning: spurious network error (3 tries remaining): [28] Timeout was reached (Operation too slow. Less than 10 bytes/sec transferred the last 30 seconds)
warning: spurious network error (2 tries remaining): [28] Timeout was reached (Operation too slow. Less than 10 bytes/sec transferred the last 30 seconds)
warning: spurious network error (1 tries remaining): [28] Timeout was reached (Operation too slow. Less than 10 bytes/sec transferred the last 30 seconds)

So, presumably this is some kind of transient network failure. I've restarted the jobs. 🤞

[JosiahParry]

thanks @michaelkirk! Looks good now.

[michaelkirk]

BTW have you seen #1050?

It's not quite the same thing, but it seems like maybe you could leverage the functionality within. Though, I'm not sure if you'd want to, I haven't thought about it very hard.

[JosiahParry]

#1050 is interesting and likely a bit more challenging than what i endeavored for here! I could give it a further look after this.

[JosiahParry]

Recent commits allow for n to be greater than the number of Lines that compose a LineString which is done using the Densify trait to ensure that the distance between Coords is x.euclidean_length() / n.

[JosiahParry]

I've updated the branch with main. Please let me know what more is needed for this PR. Thanks!

[JosiahParry]

Just following up here. Please let me know what more is needed on this PR. Thanks!

[JosiahParry]

@michaelkirk / @urschrei, please let me know what tasks are remaining for this PR. Thanks! R bindings to geo are based on my fork with this functionality so a downstream package can improve their peformance by 4 orders of magnitude. I'd love to be able to point to main and keep up with new PRs :)

[urschrei]

Some minor comments and questions from me.

[JosiahParry]

All comments are resolved. Praying to the CI overlords 🙏🏼

[urschrei]

Guessing that was an inadvertent close.

[JosiahParry]

oops! Correct. Thank you @urschrei. CI caught an example issue.

[JosiahParry]

Changes should be resolved and CI is satisfied. @urschrei when you get a chance, let me know if I've missed anything! Thanks again for the feedback

[urschrei]

LGTM. I'll leave it open for another couple of days in case anyone else wants to take a look.

[JosiahParry]

Sounds good! Enjoy you're weekend

[urschrei]

[tolling bell]
Last call!