OpenDrive with Georeference in UTM Coordinates and offset

[TKeutgens]

Dear Commonroad Team,

I'm trying to import an OpenDRIVE file that contains a Georeference in UTM with an offset. Below is an example.

<geoReference><![CDATA[+proj=utm +zone=32 +datum=WGS84 +units=m +no_defs +type=crs]]></geoReference>
<offset x="297133.4" y="5623440.5" z="0" hdg="0"/>

Unfortunately the conversion to CommonRoad and Lanelet does not work properly. The resulting lat and lon coordinates are: lat="-50.22711947744166" lon="-2.185895728757027".

[TKeutgens]

I have isolated the problem. It seems that somewhere in the code the offset is being subtracted. However, my interpretation of the OpenDRIVE standard is that the offset must be added. https://publications.pages.asam.net/standards/ASAM_OpenDRIVE/ASAM_OpenDRIVE_Specification/latest/specification/08_coordinate_systems/08_05_geo_referencing.html

Could you lead me to the best place in the code to fix the issue?

[smaierhofer]

I think the offset is used here.