I don't konw the rhyme/reason but it looks like it was removed (w/o
any deprecation first i guess) as part of LUCENE-7123 in commit:
ce3114233bdc45e71a315cb6ece64475d2d6b1d4
in that commit, existing callers in the lucene code base were changed to
use "2 * GeoProjectionUtils.SEMIMAJOR_AXIS"
(once the jira outage is over you might find more info in the comments of
that issue)
: Date: Thu, 12 Jan 2017 12:00:31 +1100
: From: Trejkaz <trej...@trypticon.org>
: Reply-To: java-user@lucene.apache.org
: To: Lucene Users Mailing List <java-user@lucene.apache.org>
: Subject: Where did earthDiameter go?
:
: Hi.
:
: I don't know why, but we have some kind of esoteric logic in our own
: code to simplify a circle on the Earth to a bounding box, clearly
: something to do with computing geo queries.
:
: double lonMin = -180.0, lonMax = 180.0;
: if (!closeToPole(latMin, latMax)) {
: double D = SloppyMath.earthDiameter(lat);
: double d = D * Math.sin((90.0 - lat) * Math.PI / 180.0); //
: diameter of a disk formed by parallel at latitude = lat
: double kmPerLonDeg = Math.PI * d / 360.0;
: double distanceInLonDeg = distanceKm / kmPerLonDeg;
: lonMin = lon - distanceInLonDeg;
: lonMax = lon + distanceInLonDeg;
: }
:
: This SloppyMath.earthDiameter(latitude) method appears to be gone in
: v6.3.0 but I don't see any mention of a replacement in the changelog.
: Is there a replacement? Do I just slot in a constant and hope that
: nobody notices? I mean, if the maths are supposed to be "sloppy"... :D
:
: TX
:
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:
-Hoss
http://www.lucidworks.com/
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