Scala: library to get geohashes from WKT linestring

Question

I have a WKT Linestring, let's say:

LINESTRING (11.782009 42.099761, 11.781858 42.099615, 11.782359 42.100029)

From this path, I want to get the list of geohashes that it goes through.

In python, there is https://github.com/mathieuripert/geoh . A Java equivalent is https://github.com/jillesvangurp/geogeometry however this library is buggy (it doesn't use the provided precision and somewhere it inverts lat and lon so that the resulting geohashes are wrong). I prefer not to fork it as I am not an expert in spatial processing.

I can't find the same function in geomesa or jts, do you know any reliable library that does the job?

Have you tried [GeoHash from GeoMesa](https://github.com/locationtech/geomesa/blob/master/geomesa-utils/src/main/scala/org/locationtech/geomesa/utils/geohash/GeoHash.scala) ? — Andriy Plokhotnyuk, Nov 06 '19 at 09:23
Geohashes are to be put in elasticsearch, for better query performance. — Rolintocour, Nov 06 '19 at 09:37
in GeoMesa, I can't find any method to apply to a list of coordinates, only to get a single GeoHash. Or is there any? — Rolintocour, Nov 06 '19 at 09:38

score 0 · Answer 1 · answered Nov 06 '19 at 13:21

0

Finally found GeohashUtils.decomposeGeometry() in https://github.com/locationtech/geomesa/blob/master/geomesa-utils/src/main/scala/org/locationtech/geomesa/utils/geohash/GeoHash.scala as suggested

answered Nov 06 '19 at 13:21

Rolintocour

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Scala: library to get geohashes from WKT linestring

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