Maarten Coene ( 
https://osgeo-org.atlassian.net/secure/ViewProfile.jspa?accountId=62d55459098e73c4e5ee3931
 ) *created* an issue

GeoServer ( 
https://osgeo-org.atlassian.net/browse/GEOS?atlOrigin=eyJpIjoiNTliNjg5MzllMDE0NDcwZTliNjc3ZDgwY2Y1ZDY0ZGYiLCJwIjoiaiJ9
 ) / Bug ( 
https://osgeo-org.atlassian.net/browse/GEOS-10590?atlOrigin=eyJpIjoiNTliNjg5MzllMDE0NDcwZTliNjc3ZDgwY2Y1ZDY0ZGYiLCJwIjoiaiJ9
 ) GEOS-10590 ( 
https://osgeo-org.atlassian.net/browse/GEOS-10590?atlOrigin=eyJpIjoiNTliNjg5MzllMDE0NDcwZTliNjc3ZDgwY2Y1ZDY0ZGYiLCJwIjoiaiJ9
 ) PerpendicularOffset in SLD styling offsets to wrong side ( 
https://osgeo-org.atlassian.net/browse/GEOS-10590?atlOrigin=eyJpIjoiNTliNjg5MzllMDE0NDcwZTliNjc3ZDgwY2Y1ZDY0ZGYiLCJwIjoiaiJ9
 )

Issue Type: Bug Affects Versions: 2.21.0 Assignee: Unassigned Components: 
styling Created: 18/Jul/22 3:14 PM Priority: Medium Reporter: Maarten Coene ( 
https://osgeo-org.atlassian.net/secure/ViewProfile.jspa?accountId=62d55459098e73c4e5ee3931
 )

Hi,

GeoServer support the PerpendicularOffset on a LineSymbolizer:
https://docs.geoserver.org/latest/en/user/styling/sld/reference/linesymbolizer.html#offsetting-lines

The OGC Symbology Encoding specification states (section 11.1.4):

> 
> 
> 
> The distance is in uoms and is positive to the left-hand side of the line
> string. Negative numbers mean right. The default offset is 0.
> 
> 

However, it looks like in GeoServer this is reversed: positive distances are 
offsetted to the right, negative numbers to the left.

See also the discussion on the geoserver users mailing list: 
https://sourceforge.net/p/geoserver/mailman/geoserver-users/thread/1361437501.553973.1657034760162%40mail.yahoo.com/#msg37677010

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 ) Add Comment ( 
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