Hi Andrea,
that was a good Tip. Thank you for that.
In former we have preproduced the ImagePyramids with gdal_retile and gdaltindex
and some how that produces the strange behavior.
Now we did the Indexing of the ImagePyramids with GeoServer2.12.1 and the
Default EPSG:31466 and EPSG:25832.
Afterwords the Requests with the SRS different than the source SRS behave as
expected. There is no shifted Data anymore.
I`m excited to know how the thing works, when we turn on a
epsg_overrides.properties File with special towgs Parameters to receive a
better fitting of EPSG:31466 Data in 25832 Requests.
Do we have to edit the .prj Files in the EPSG:31466 Source Pyramid manually or
better delete the Layers and Stores an publish them again ?
Or is no interaction needed
Cheers, Guido
Von: andrea.a...@gmail.com [mailto:andrea.a...@gmail.com] Im Auftrag von Andrea
Aime
Gesendet: Donnerstag, 14. Dezember 2017 10:19
An: Blome, Guido (62-24)
Cc: geoserver-users@lists.sourceforge.net
Betreff: Re: [Geoserver-users] Problem with transforming ImagePyramid based WMS
Layers
Hi Guido,
the image pyramid stores the SRS of the pyramid in a .prj file. Wondering if
that file contains
the wrong TOWGS84 parameters for some reason? (in the case of geotiff, a EPSG
code is looked up
instead, and the choice of datum transformation parameters is performed at
runtime querying the
EPSG database instead, which can lead to a different result).
You can use the reprojection console to see what transformation GeoServer would
use going
between the EPSG codes directly (the one used by the GeoTiff).
Cheers
Andrea
On Tue, Dec 12, 2017 at 6:19 PM, Blome, Guido (62-24)
<guido.bl...@bonn.de<mailto:guido.bl...@bonn.de>> wrote:
Hi list,
I'm using GeoServer 2.12.1 with tomcat 7.0.59 JVM1.8.0_92-b14, with the default
SRS Definition set.
I have problem's using EPSG:31466 with ImagePyramid Datastores in EPSG:25832
WMS-Requests.
The requested WMS-Image is located about 200 m to south in comparison to
PostGIS based layers or a GeoTiff based EPSG:31466 raster layer in the same WMS
request. In the opposite direction (EPSG:25832 Data in a EPSG:31466 Request)
there is no Problem with transformation of ImagePyramid Data.
Summary: GeoTiff and PostGIS Layers are transformed as expected. ImagePyramid's
not.
When using a epsg_overrides.properties File for EPSG:31466 with special towgs84
parameters the behavior switches:
Now the EPSG:25832 based ImagePyramid will be transformed about 200 m to south
in comparison to PostGIS based layers or a GeoTiff based EPSG:25832 raster
layer in a EPSG:31466 WMS-Request, also a EPSG:31466 ImagePyramid is not
transformed at the expected position in a EPSG:25832 Request, like PostGIS and
GeoTiff Layers do.
Summary: The expected better fitting of the EPSG:31466 content in a EPSG:25832
request can be solved through the properties File with PostGIS and GeoTiff
based Layers. With ImagePyramid's the results are not as expected.
Can somebody explain the observed behavior or has similar problems ?
Is this a bug in the SRS handling when rendering ImagePyramid Data ?
Regards, Guido Blome
Bundesstadt Bonn
Amt für Bodenmanagement und Geoinformation
Sachgebietsleiter Geodateninfrastruktur
Stadthaus, Berliner Platz 2, 53111 Bonn
Telefon +49(0)2 28.77 3009
Telefax +49(0)2 28.77 2618
E-Mail guido.bl...@bonn.de<mailto:guido.bl...@bonn.de>
Internet www.bonn.de<http://www.bonn.de>
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Please make sure you read the following two resources before posting to this
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Regards,
Andrea Aime
==
GeoServer Professional Services from the experts! Visit http://goo.gl/it488V
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@geowolf
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_______________________________________________
Geoserver-users mailing list
Please make sure you read the following two resources before posting to this
list:
- Earning your support instead of buying it, but Ian Turton:
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- The GeoServer user list posting guidelines:
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If you want to request a feature or an improvement, also see this:
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