[Geoserver-users] WMS GetFeatureInfo & Time Series Data

Jukka_Rahkonen · November 12, 2014, 8:39am

Hi,

Sounds interesting. There might be more use for such queries from multidimensional coverages.

Have you been thinking what could be the best way to enhance WCS with such new query type "GetCoverageInfo" in some close-to-standard way? Could it be a special outputformat as you did plus some vendor option "CoverageInfoParameters"?

-Jukka Rahkonen-

-----Alkuperäinen viesti-----
Lähettäjä: Jeroen Dries [mailto:jeroen.dries@anonymised.com]
Lähetetty: 12. marraskuuta 2014 9:57
Vastaanottaja: geoserver-users@lists.sourceforge.net
Aihe: Re: [Geoserver-users] WMS GetFeatureInfo & Time Series Data

Hi Mike,

I had exactly the same problem. I solved it using the multidimensional
outputformat support in the geoserver WCS implementation. I wrote a custom
multidimensional outputformat encoder, which encodes to json. Then I send
WCS GetCoverage requests to geoserver, using something like 'custom/json' as
the outputformat.

My outputformat code then receives a 'GranuleStack', which I encode to json.

If you're interested in this approach, I can lookup some code pointers and
possible workarounds that were needed to get this to work.

best regards,
Jeroen

On Monday 10 November 2014 11:34:24 Mike Grogan wrote:
> With a time-enabled image mosaic as the data store, is there an easy
> way to get multiple return values for time series raster data via
> GetFeatureInfo (or anything else available on GeoServer)?
>
> For instance, in one request I would like to get all values for a grid
> cell for all times available in the mosaic. So, say I have hourly
> rasters covering a 24 hour period, I would like to return the 24
> hourly values at a particular lat/lon in a single request.
>
> Thanks,
>
> Mike Grogan

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Dries_Jeroen · November 12, 2014, 8:55am

Hello,

for my use case, the standard WCS 2.0 options were sufficient, only the outputformat is not described by a standard, but that’s not so relevant as it’s plain text json.

If you are thinking about more complex queries, than you can have a look at http://www.opengeospatial.org/standards/wcps . (Do note that writing a full implementation would be very complex, and also the queries which you have to send as a client can become quite large.)

What type of vendor options were you thinking about?

best regards,

Jeroen

On Wednesday 12 November 2014 08:39:31 Rahkonen Jukka wrote:

Hi,

Sounds interesting. There might be more use for such queries from

multidimensional coverages.

Have you been thinking what could be the best way to enhance WCS with such

new query type “GetCoverageInfo” in some close-to-standard way? Could it be

a special outputformat as you did plus some vendor option

“CoverageInfoParameters”?

-Jukka Rahkonen-

-----Alkuperäinen viesti-----

Lähettäjä: Jeroen Dries [mailto:jeroen.dries@anonymised.com]

Lähetetty: 12. marraskuuta 2014 9:57

Vastaanottaja: geoserver-users@lists.sourceforge.net

Aihe: Re: [Geoserver-users] WMS GetFeatureInfo & Time Series Data

Hi Mike,

I had exactly the same problem. I solved it using the multidimensional

outputformat support in the geoserver WCS implementation. I wrote a custom

multidimensional outputformat encoder, which encodes to json. Then I send

WCS GetCoverage requests to geoserver, using something like ‘custom/json’

as the outputformat.

My outputformat code then receives a ‘GranuleStack’, which I encode to

json.

If you’re interested in this approach, I can lookup some code pointers and

possible workarounds that were needed to get this to work.

best regards,

Jeroen

On Monday 10 November 2014 11:34:24 Mike Grogan wrote:

With a time-enabled image mosaic as the data store, is there an easy

way to get multiple return values for time series raster data via

GetFeatureInfo (or anything else available on GeoServer)?

For instance, in one request I would like to get all values for a grid

cell for all times available in the mosaic. So, say I have hourly

rasters covering a 24 hour period, I would like to return the 24

hourly values at a particular lat/lon in a single request.

Thanks,

Mike Grogan

---- Comprehensive Server Monitoring with Site24x7.

Monitor 10 servers for $9/Month.

Get alerted through email, SMS, voice calls or mobile push notifications.

Take corrective actions from your mobile device.

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