@Paolo_Emilio_Serra1 I ran into a problem with PolylineExtensions.ObjectByGeometry, you can see below. The white line is a polyline drawn in AutoCAD, the red line is the result after offsetting the curve in Dynamo and then outputting back to model space. Files attached.
PolylineTest.dwg (405.8 KB)
PolylineTest.dyn (17.1 KB)
Autodesk_Civil3DToolkit.txt (757 Bytes)
