[Geoserver-devel] WCS 2.0.1 with SCALESIZE

Hi,

Is there something wrong with this GetCoverage?

localhost:8080/geoserver/wcs?service=WCS&version=2.0.1&request=GetCoverage&coverageID=sf__sfdem&SUBSET=E(589980,590000)&SUBSET=N(4913700,4923700)&SCALESIZE=E(200),N(200)

The error from GeoServer 2.11-RC1 is
"ScaleAxisUndefined" locator="E">

-Jukka Rahkonen-

All right, the SCALESIZE axis are output grid axes which are named as i and j in DescribeCoverage
gml:axisLabels>i j</gml:axisLabels
So the E and N which are used for subset are wrong for SCALESIZE

Another thing is that i and j can't be used as it but they require URI for the axis. So this is a working query:

http://localhost:8080/geoserver/wcs?service=WCS&version=2.0.1&request=GetCoverage&coverageID=sf__sfdem&SUBSET=E(589980,590000)&SUBSET=N(4913700,4923700)&SCALESIZE=http://www.opengis.net/def/axis/OGC/1/i(200),http://www.opengis.net/def/axis/OGC/1/j(200)

Now I wonder if it is necessary and useful to require that long format for axis names. The KVP examples in the Scaling Extension standard are using this short and more human-writable syntax:
…& SCALESIZE=i(1000),j(1000),k(10) &…

-Jukka-

________________________________________
Lähettäjä: Rahkonen Jukka (MML)
Lähetetty: 21. maaliskuuta 2017 20:03
Vastaanottaja: 'Geoserver-devel'
Aihe: [Geoserver-devel] WCS 2.0.1 with SCALESIZE

Hi,

Is there something wrong with this GetCoverage?

localhost:8080/geoserver/wcs?service=WCS&version=2.0.1&request=GetCoverage&coverageID=sf__sfdem&SUBSET=E(589980,590000)&SUBSET=N(4913700,4923700)&SCALESIZE=E(200),N(200)

The error from GeoServer 2.11-RC1 is
"ScaleAxisUndefined" locator="E">

-Jukka Rahkonen-
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Hi Jukka,
that is actually not clear to me, the examples in the spec that I could find are all using the long format, but I could
not find a specific rule for axis names, or how the labels reported in DescribeCoverage output relate to the
IDs used in requests, since the former always uses short names in the spec, and the latter uses long URI
like ones instead (see the scaling extension).

I am not opposed to also recognize a shorter format, could be one of those “GeoServer not quite fully standard
but handy” relaxed interpretations of the protocol. Or you could just be that the specification it’s inconsistent,
it would make a lot of sense imho if the labels reported in DescribeCoverage had to be used as-is
in GetCovearge.

Cheers
Andrea

···

On Tue, Mar 21, 2017 at 10:04 PM, Rahkonen Jukka (MML) <jukka.rahkonen@anonymised.com> wrote:

All right, the SCALESIZE axis are output grid axes which are named as i and j in DescribeCoverage
gml:axisLabels>i j</gml:axisLabels
So the E and N which are used for subset are wrong for SCALESIZE

Another thing is that i and j can’t be used as it but they require URI for the axis. So this is a working query:

http://localhost:8080/geoserver/wcs?service=WCS&version=2.0.1&request=GetCoverage&coverageID=sf__sfdem&SUBSET=E(589980,590000)&SUBSET=N(4913700,4923700)&SCALESIZE=http://www.opengis.net/def/axis/OGC/1/i(200),http://www.opengis.net/def/axis/OGC/1/j(200)

Now I wonder if it is necessary and useful to require that long format for axis names. The KVP examples in the Scaling Extension standard are using this short and more human-writable syntax:
…& SCALESIZE=i(1000),j(1000),k(10) &…

-Jukka-


Lähettäjä: Rahkonen Jukka (MML)
Lähetetty: 21. maaliskuuta 2017 20:03
Vastaanottaja: ‘Geoserver-devel’
Aihe: [Geoserver-devel] WCS 2.0.1 with SCALESIZE

Hi,

Is there something wrong with this GetCoverage?

localhost:8080/geoserver/wcs?service=WCS&version=2.0.1&request=GetCoverage&coverageID=sf__sfdem&SUBSET=E(589980,590000)&SUBSET=N(4913700,4923700)&SCALESIZE=E(200),N(200)

The error from GeoServer 2.11-RC1 is
“ScaleAxisUndefined” locator=“E”>

-Jukka Rahkonen-

Check out the vibrant tech community on one of the world’s most
engaging tech sites, Slashdot.org! http://sdm.link/slashdot


Geoserver-devel mailing list
Geoserver-devel@anonymised.com.366…sourceforge.net
https://lists.sourceforge.net/lists/listinfo/geoserver-devel


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