Coordinate/projection system in geo point

Elastic Stack Elasticsearch
1

Which coordinate or projection type do you support in geo location point?
I have a look at the GeoDistance class and it appear that GPS coordinate
will return the most accurate distance.

Could you confirm this point ?

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2

Hi Francois,

currently ES just supports the WGS84 projection, which is also the base for
the GPS system. In the future we maybe allow custom projections. May I ask
for your use-case?

cheers,
Florian

On Wednesday, February 12, 2014 8:08:18 PM UTC+9, Francois Brunet wrote:

Which coordinate or projection type do you support in geo location point?
I have a look at the GeoDistance class and it appear that GPS coordinate
will return the most accurate distance.

Could you confirm this point ?

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3

It was just to be sure about the projection system.
I have no need to store another projection for the moment. WGS84 is the
best choice :slight_smile:

Thanks a lot for your answer.

Le mercredi 12 février 2014 13:34:32 UTC+1, Florian Schilling a écrit :

Hi Francois,

currently ES just supports the WGS84 projection, which is also the base
for the GPS system. In the future we maybe allow custom projections. May I
ask for your use-case?

cheers,
Florian

On Wednesday, February 12, 2014 8:08:18 PM UTC+9, Francois Brunet wrote:

Which coordinate or projection type do you support in geo location point?
I have a look at the GeoDistance class and it appear that GPS coordinate
will return the most accurate distance.

Could you confirm this point ?

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4

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5

Hello,

I would like to use ES for astronomy and planetology.
In astronomy, the computation (intersection of shapes and angular distance) must be done on a perfect sphere.
In planetology (Mars for instance), the computation (intersection of shapes and metrical distance) must be done on a specific spheroid (http://spatialreference.org/ref/iau2000/49901/html/)
I would like to know if ES could support custom projections in which it is possible to define semi-major axis and inverse flatenning parameters (like postgis) ?

Cheers,
Jean-Christophe