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[sumo-dev] netconvert of xodr files - unexplained offset
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 Dear list, 
recently I have been experimenting with xodr sources and their conversion to sumo net files. 
Apart from encountering minor issues regarding the xodr compliance to standard v1.2 in netconvert,
 
 
I got suspicious of the fidelity of the geometry conversion while inserting signals as POIs. 
The problem can be seen in the attached image. 
It shows the rendering of lane-slabs (yellow) extracted from the odr file to wkt-files, which rather nicely matches the sat-map. 
The xodr lanes are separated and bounded by the roadmarks in white and fit right next to each other. 
 
When doing the same for the conversion result lane-data by using sumolib.net.readNet, 
some differences show up. Cyan thin lines show the presumed center-lines of the lanes,
 
and the hatched slabs are the lane-polygons resulting from adding the width/2 left and right of the center line. 
They do not fit tightly as there is some space in between. 
I checked this for some scenarios and a deviation shows consistently. 
The good match between the xodr lanes and the satelite-images lets me assume that I did something right on that end. 
 
Does anybody know of this issue? How to circumvent it? 
I can provide such a comparison on some test-data, given the xodr-features are not too fancy... 
and am willing to help. 
 
best, 
Gerald. 
 
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Attachment:
problem demo.pdf
Description: problem demo.pdf