Surface Labels along a object/Polyline

[chodd85]

I have written a script to place a surface label along a polyline, as past attempts to use the array function in civil 3d had failed. the script works but when selecting a second object, the labels along the first object are removed. Is there a node that can be added to allow the process to be repeated without deleting labels?

Thanks,

Chris

[mzjensen]

Hi @chodd85,

This is by design and is a result of element binding. Take a look at this post so you can know how to control it.

Dynamo For Civil 3D Binding

Could someone explain to me element binding best practices for Dynamo in Civil 3D? Clearly, if no binding data is retained, dynamo will recreate objects every time the script is run. However, dynamo will store binding data in the graph, in the drawing, and in the drawing for the player; what is the application for each of these options? Say I have script that offsets a polyline. I want Dynamo to allow me to adjust the offset and not recreate the polyline every time the script is run and I want…

[KirkWM]

Perhaps try using the select.objects node from the Civil3DToolkit package instead of the singular OOTB one. This would let you select all the lines you wanted, BUT if you ran the script again the previous labels would be deleted. Another option would be to make a special layer for your label line and have the script get all objects on that layer, then they would all be captured each time.