Github user rvesse commented on the issue:
https://github.com/apache/jena/pull/205
We should already have support for most of the trigonometric functions
built into ARQ as extension functions -
https://github.com/apache/jena/tree/59e5e06c85c98c9c65a9c1addbc4252626e9d061/jena-arq/src/m
Github user ajs6f commented on the issue:
https://github.com/apache/jena/pull/205
Sure, so my claims are 1) this is a good PR :) and 2) if we want to offer
the kind of functionality that you are removing, that's cool, but we should do
it in some appropriate, public, maintainable way (
Github user osma commented on the issue:
https://github.com/apache/jena/pull/205
@ajs6f It takes [a bit
more](http://www.movable-type.co.uk/scripts/latlong.html) than just sqrt() to
calculate great-circle distances between coordinates even within the same
coordinate system, e.g. trig
Github user ajs6f commented on the issue:
https://github.com/apache/jena/pull/205
@osma Yeah, that's what I meant tho'-- use a calculation (via `BIND`, I
guess?) of the distance (and we have [â available to
use](https://jena.apache.org/documentation/query/library-function.html)) and
Github user osma commented on the issue:
https://github.com/apache/jena/pull/205
@ajs6f I'm not sure whether you can use ORDER BY in a case like this. It
would need a SPARQL function for calculating distances between coordinates, so
you could say, in effect, "order by distance from po
Github user ajs6f commented on the issue:
https://github.com/apache/jena/pull/205
@osma In the case you mention, shouldn't the user be explicitly ordering
anyway?
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Github user osma commented on the issue:
https://github.com/apache/jena/pull/205
Thanks @afs for the approval. I will wait a few more days and then merge
this, unless there are objections.
The only scenario I'm mildly concerned about is if someone performs a
spatial query for