How to create the evolute of a curved object along a curved plan?

[FrancoisAPPERE]

Hi guys,

I would like to know if there is a DS node allowing us to create the evolute of a curved object (for example a curve slab, see example below)

My objective is to create a cross section along a curved plan which is impossible in Revit. (cross section are straight)

Thanks,
François

[simoneavellini]

Hello @FrancoisAPPERE,

a geometrical consideration on what you are trying to achieve.

On my opinion( please correct me if am wrong) your sketch is not precise, if you cut along the center line of the element the “X meters” distance is shorter than what you get.

You might achieve what you want cutting the element and then unwrapping the results.

Good luck.

[Nikolay_Gerasimov1]

Check this

[Dimitar_Venkov]

This might give you some ideas too:

Creating Curved Cross Section, Bridge Engineering

You could split your bridge centre line into a series of chords, create a section at each chord, and finally place the sections next to each other on a sheet, to get a “developed section”. [image] In this case I snapped the sections together by their crop box, but I’m pretty sure you can create some custom logic that snaps them automatically. [image]

[FrancoisAPPERE]

Indeed this is more accurate.
Thanks for the clarification.
François

[FrancoisAPPERE]

Thanks I know this video bur there is nothing about curved / developed cross section

[FrancoisAPPERE]

Thanks @Dimitar_Venkov for the link! I will have a closer look !
That looks promising…!

[PiotrS]

Hello @FrancoisAPPERE,
Have You successfully written script for making this kind of section view?