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Factual / geo

Clojure library for working with geohashes, polygons, and other world geometry
Eclipse Public License 1.0
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Bump jts to 1.16.0, with corresponding support for XYZM coordinates #36

Closed willcohen closed 6 years ago

worace commented 6 years ago

@willcohen looks good; happy to add this. I've never run into an XYZM coordinate before. I have read that they are used for additional relative measurements within a coordinate system or something along those lines. Curious if you have an example use-case of how this would be used, mostly just for my edification.

willcohen commented 6 years ago

It's definitely a bit of a stage-setting move right now (proj4j doesn't support it yet, for example), but projection systems are making moves to integrate the M measure, with things like projection transformations that depend on time. Having the coordinates be able to flow through geo as XYZM means that it'll be easier for this library to integrate/test those changes as they develop.