[Geoserver-devel] Gs2.5.2 ImageMosaic layers show totally white image for version=1.3.0 even if bbox values swapped. Related to GEOS-6651.

GeoServer GeoServer Developer
1

My question is related to the issue https://jira.codehaus.org/browse/GEOS-6651 which ended up to be a user error related to the bbox value. It seems that when version 1.3.0 bbox coordinates are swapped, only some of the images are shown properly. This seems to depend on the srs-value. For example in our services, &srs=EPSG:3035 shows images properly but when using &srs=EPSG:3067 images become totally white.

Do you think this may be also a user-error, or could there be a bug?

Below are some URLs to demo this issue by using different version numbers and srs-values with couple of different layers. These URLs are temporarily available for you.

Our services use GeoServer 2.5.2 Build Date 22-Jul-2014 09:05.

Layer: Radar:suomi_rr_eureffin
SRS=EPSG:3067

Request an image by using version 1.1.1:
http://wms.fmi.fi/fmi-apikey/4bda0057-9e4a-453e-9fa9-966a15a368e1/geoserver/Radar/wms?LAYERS=Radar%3Asuomi_rr_eureffin&STYLES=&FORMAT=image%2Fjpeg&SERVICE=WMS&VERSION=1.1.1&REQUEST=GetMap&SRS=EPSG%3A3067&BBOX=-117278.40864788,6335621.1670142,874514.7741461,7907751.5372634&WIDTH=323&HEIGHT=512

Image is shown properly

Request an image by using version 1.3.0. Notice, version 1.3.0 requires that bbox uses y/x order instead of x/y that is used in version 1.1.1. Therefore, this URL has different version and also modified bbox in comparison to 1.1.1 URL above.
http://wms.fmi.fi/fmi-apikey/4bda0057-9e4a-453e-9fa9-966a15a368e1/geoserver/Radar/wms?LAYERS=Radar%3Asuomi_rr_eureffin&STYLES=&FORMAT=image%2Fjpeg&SERVICE=WMS&VERSION=1.3.0&REQUEST=GetMap&SRS=EPSG%3A3067&BBOX=6335621.1670142,-117278.40864788,7907751.5372634,874514.7741461&WIDTH=323&HEIGHT=512

Only a totally white image is shown, even if same image as with version 1.1.1 is expected

Layer: Radar:opera_europe_dbz
SRS=EPSG:3035

Request an image by using version 1.1.1:
http://wms.fmi.fi/fmi-apikey/4bda0057-9e4a-453e-9fa9-966a15a368e1/geoserver/Radar/wms?LAYERS=Radar%3Aopera_europe_dbz&STYLES=&FORMAT=image%2Fjpeg&SERVICE=WMS&VERSION=1.1.1&REQUEST=GetMap&SRS=EPSG%3A3035&BBOX=2380482.9873367,1227287.8501035,6179178.0618397,5627586.2169485&WIDTH=442&HEIGHT=512

Image is shown properly

Request an image by using version 1.3.0 and bbox values swapped:
http://wms.fmi.fi/fmi-apikey/4bda0057-9e4a-453e-9fa9-966a15a368e1/geoserver/Radar/wms?LAYERS=Radar%3Aopera_europe_dbz&STYLES=&FORMAT=image%2Fjpeg&SERVICE=WMS&VERSION=1.3.0&REQUEST=GetMap&SRS=EPSG%3A3035&BBOX=1227287.8501035,2380482.9873367,5627586.2169485,6179178.0618397&WIDTH=442&HEIGHT=512

··· 
Best regards,

-- 
Ville Karppinen
[ville.karppinen@anonymised.com](mailto:ville.karppinen@anonymised.com)
+358407509542
2

On Wed, Sep 24, 2014 at 11:58 AM, Ville Karppinen <ville.karppinen@anonymised.com..>
wrote:

My question is related to the issue
https://jira.codehaus.org/browse/GEOS-6651 which ended up to be a user
error related to the bbox value. It seems that when version 1.3.0 bbox
coordinates are swapped, only some of the images are shown properly. This
seems to depend on the srs-value. For example in our services,
&srs=EPSG:3035 shows images properly but when using &srs=EPSG:3067 images
become totally white.

Yes, WMS 1.3 requires swapped coordinates only if the SRS in question uses
north/east orientation in the official EPSG database, you can check its
online
version here: http://www.epsg-registry.org/

As a simplified rule, most of the geographic CRS need to use lat/lon order,
most of the projected ones are east/north instead (although there are a few
exceptions
of projected SRS that still use north/east order)

Cheers
Andrea

--

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