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locationtech / proj4j

Java port of the Proj.4 library for coordinate reprojection
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What's the maintenance status? #1

Closed Brideau closed 5 years ago

Brideau commented 6 years ago

Hi there, I came across this proposal and was wondering if there is still a plan to maintain this library? The repo linked in the proposal is this one by @dwins and it looks like the original is over in the Proj4j organization, but it's getting pretty stale. It seemed to receive a series of updates a couple years ago, but there hasn't been a new release.

Would be great to see a group pick this up again!

dr-jts commented 6 years ago

Yes, it would be great to invigorate this project.

I note that the LT homepage needs some curating as well (some spam in comments).

lossyrob commented 6 years ago

Hi @Brideau,

I'll post a quick rundown of the history of this repo as part of it's proposal to LocationTech:

To give a quick run-down of the story behind this: Proj4j is an OSGeo project, and part of the MetaCRS group of projects. The project started with the efforts of Martin Davis, of JTS fame. The project has not been very active, and the binaries are not published anywhere official. Since there was no published version, and some tweaks needed to be made (around adding Serializable traits to classes in order to work with Spark, for the curious), GeoTrellis absorbed the code into it's geotrellis.proj4 subproject. Since then we've made bug fixes, added a whole lot of test coverage, and made many improvements; particularly I want to call out David Winslow for the improvement efforts. In order for the broader community to benefit from these improvements, and also to give the project active stewardship, we wanted to take that codebase and put it under the LocationTech umbrella. After talking with Martin and some discussion on the current Proj4j mailing list, this seemed like a good move. So, we've submitted a proposal for GeoTrellis's version of Proj4j as a LocationTech project.

It's been very slow going to go through the LocationTech IP process, and that's mostly the fault of the ability to prioritize this work for the people involved (myself first and foremost).

That said, I would really like to see a group pick this up and help move the project forward, and would be happy to help in this regard as time permits. I'm also open to any other ideas on how to best move forward with this repository and the Proj4j project.

willcohen commented 6 years ago

This project does meet a need as a reprojection tool which is both lightweight and Apache-licensed, especially re the JTS 1.15 licensing change. Is it worth putting out a 0.1.1 release of this version which incorporates the geotrellis bug fixes and updates, pending a larger discussion of changes to the code base? Alternatively, would a recommendation be for other projects to just incorporate geotrellis-proj4 in the meantime?

echeipesh commented 5 years ago

This proj4j is now alive here and is being maintained. It has recently picked up a couple more committers and there are conversations about future feature development that should surface both on dev list and issue list here. I think this issue is resolved.