shape changed when convert opendrive map to sumo road network in lefthand

[o-u-p]

it caused shape changed when executing "netconvert -c defaultSchema.xsd --opendrive opendrive.xodr --lefthand -o test.net.xml "

Could someone tell me how to make it work correctly? Any help will be appreciated!

[namdre]

I never tested OpenDRIVE import for lefthand networks. Can you provide a sample .xodr file?

[o-u-p]

I have sent it to your email which subject is "opendrive sample".

[namdre]

Some kinds of geometrical definition already imply a specific jurisdiction and you cannot set the option --lefthand independent of that (https://sumo.dlr.de/wiki/NETCONVERT#Lefthand_Networks)

For OpenDRIVE, this translates to:

• if both directions of a street are defined as a single road, option --lefthand will produce reasonable results even if the network was not intended as a left-hand network
• if both directions of a street are defined as separate roads then only lefthand geometries work correctly with option --lefthand (and the option is needed to produce correct results)

[o-u-p]

If I don't set the option --lefthand, it will generate a righthand network and the opendrive map itself is lefthand already, so, do you mean I need to change the opendrive map?

[namdre]

Right now the opendrive map encodes some geometries that only make sense for a right-hand network. If you want a lefthand network you need to change the opendrive (specifically, you must reverse all road elements which only define lanes in one direction) and then you can import with option --lefthand

[o-u-p]

Thanks for your help. By the way, can I know if I can reverse the shape in sumo code to make the lefthand work correctly?

[namdre]

You can do the following

• import as a righthand network
• in netedit, select all edges and right-click on an edge and selected 'reverse ... edges'
• using processing options (F10) to set the option lefthand
• save the network