Hi Paolo,
I see you had some explanations about xdata with the Civil 3D toolkit.
When I use the GetXData Methods I get the warning “Warning: ObjectExtensions.GetXData operation failed. Index was outside the bounds of the array.” .
Do you have any idea what this message means. What could be wrong here?

Vincent De Breuck
Try and use the output of the AddXData node to feed the GetXData
@Paolo_Emilio_Serra1 I tried that workaround it doesn’t work:
Could you please try on this dwg which contains 3dpolyline:
3DPolyline to Featureline.dwg (901.6 KB)
Thanks @Paolo_Emilio_Serra1 for your reply,
I tried exactly the same way how you showed. It doesn’t work for me:
It inserted all the points but as you can see in the image below FL is not same as Polyline3D:
@Paolo_Emilio_Serra1 All my points are already in order:
Look at the last image I posted more closely
@Paolo_Emilio_Serra1 Could you please drop your dyn graph. I’m not able to see what is before List.Flatten etc. I will study closely. Thanks a lot for your support.
Have you been able to take a look into the bug i encountered with the stationoffsetelevationbypoint node?
OK. Thank yiou.
When you mention ” Fixed in 1.1.15”, do you have an idea when it will be possible to download it?
Currently I can one download 1.114.

Kind regards.
Vincent
P.S. I can currently access the xdata through GetParametersByName , but is quite a workaround…
When I finished to address the elements here https://github.com/paoloemilioserra/Civil3dToolkit/issues
and here https://github.com/paoloemilioserra/Civil3dToolkit/projects/1 (the work in progress)
I looked closely again. You’re getting 18 points to Set PI Points and other 2 points which you already created polyline to create featureline. I used the same like you did but still I am not getting the same FL like you’re getting.
i am not sure how to use Github and if you want us to put directly our ideas on github or here so i continue here :
- it would be great if in your new selections node for alignments, corridors and surfaces you could had in the drop list an empty value…
@bertrand.savarit thanks, you can register to github with your email for free, it is simpler than you think. For now I’ll report your inputs https://github.com/paoloemilioserra/Civil3dToolkit/projects/1#card-50524960
Hi @Paolo_Emilio_Serra1 for my last query do I need to wait until your next release 1.1.15 to fix nodes Create Featureline and Fix PI Point?
I did not touch those nodes







