What are the trimCurves and trimLength inputs for the PolyCurve.ByJoinedCurves node?

Civil 3D
1

Hello,
The inputs “trimCurves” and “trimLength” of the “PolyCurve.ByJoinedCurves” node do not cause any changes regardless of what is inputted. Could you please explain the meanings or provide usage examples of “trimCurves” and “trimLength”?
!

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2

Hi @eri ,

I would assume that the boolean input trimCurves would trim 2 joined curves in a situation like this:

image
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For the trimLength input am I not so sure, but I would assume that this allows you to determine how long the length of the curve that would be trimmed needs to be (maximum) to be still trimmed away.

3

More or less, yes. This should illustrate it well enough:

image
image1920×1080 163 KB

(sharing the image and not the .dyn as building the graph will teach better than anything I could provide)

4

Thank you for letting me know. It was very easy to understand.

It’s a very useful feature indeed! I’m glad to know about it since it’s a function I wanted!