David Smiley

The suffix "deg" shows it's degrees based instead of radians. This convention is consistent with other parts of Spatial4j. Degrees in the context of a distance is an angular measure,...

Rectangle works now. Circle doesn't yet.

It seems much of the difficulty here is not so much the impact on the implementation for encoding a point or decoding a geohash; it's the method: getSubGeohashes(String geohash) which...

@JacobBrandt I'm glad you're interested in solving this! I recently posed the question on the JTS Dev list -- https://dev.locationtech.org/mhonarc/lists/jts-dev/msg00219.html

By the way, if per chance you are using Spatial4j in the context of Lucene or Solr, then another option is to use Geo3D: https://builds.apache.org/job/Solr-reference-guide-master/javadoc/spatial-search.html#geo3d-and-polygons-on-the-ellipsoid which supports various shapes on...

@JacobBrandt do you plan on working on this within the next couple weeks? If so, I'll holdup the 0.7 release for it.

Sorry, there isn't. It would be a fun project for you or anyone to give it a try!

Indeed. PR welcome :-)

> However, since my point is moving in parallel to the x-axis, I expect the distance delta to be the same. Am I missing something here or am I wrong...

No. Look at the top of a globe. Pick a high latitude, like 80 degrees. Say this is the line of longitude your p1 is moving along. It's a circle/curved....