[Geoserver-devel] [JIRA] (GEOS-9770) Cascading WMS server sets invalid I and J when using EPSG:3006 on GetFeatureInfo calls

_Failed_to_Retrieve · October 14, 2020, 12:00pm

Cascading WMS server sets invalid I and J when using EPSG:3006 on GetFeatureInfo calls

Issue Type:	Bug
Affects Versions:	2.17.2
Assignee:	Unassigned
Created:	14/Oct/20 2:00 PM
Environment:	Tested on geoserver 2.17.2 and compiled from source on the master branch.
Priority:	Medium
Reporter:	Mattias Pantzare

Set up a cascading WMS service to whit this Capabilities URL: http://resource.sgu.se/service/wms/130/brunnar?

Publish the layer SE.GOV.SGU.BRUNNAR.250K

Try go call GetFeatureInfo with CRS EPSG:3006

Request from the browser:

http://localhost:8080/geoserver/test/wms?SERVICE=WMS&VERSION=1.3.0&REQUEST=GetFeatureInfo&FORMAT=image%2Fpng8&TRANSPARENT=true&QUERY_LAYERS=SE.GOV.SGU.BRUNNAR.250K&LAYERS=SE.GOV.SGU.BRUNNAR.250K&INFO_FORMAT=application%2Fjson&FEATURE_COUNT=5&I=107&J=2&WIDTH=512&HEIGHT=512&CRS=EPSG%3A3006&STYLES=&BBOX=7291710.72%2C832252.7999999999%2C7294004.4799999995%2C834546.5599999999

Cascading request:

2020-10-14 13:31:04,845 DEBUG [data.ows] - Executed request to URL: http://maps3.sgu.se:80/geoserver/grundvatten/ows?FORMAT=image%2Fpng&CRS=EPSG:3006&INFO_FORMAT=application/vnd.ogc.gml&STYLES=&I=1442353&WIDTH=512&J=1442248&SERVICE=WMS&TRANSPAREN
T=TRUE&HEIGHT=512&LAYERS=SE.GOV.SGU.BRUNNAR.250K&REQUEST=GetFeatureInfo&BBOX=7291710.72,832252.7999999999,7294004.4799999995,834546.5599999999&VERSION=1.3.0&QUERY_LAYERS=SE.GOV.SGU.BRUNNAR.250K&FEATURE_COUNT=5

Notice that the I and J parameters now have invalid values.

The transformation happens in org.geotools.ows.wms.map.WMSLayer#getFeatureInfo.
It tires to transform from SRS EPSG:3006 to EPSG:3006. But for some reason it thinks that the source CRS has AXIS NORTH/EAST, and the target CRS is AXIS EAST/NORTH.

Maybe it is selecting the geoserver internal CRS instead of the EPSG definition as the target CRS?

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