Seems you don't have exactly the same result due scaling of the 2 rails :)
I have taken the middle center and internal curves for the 2 rails
and middle center for one rail
and inverse stars for have same order
Remark : curves generator resulting from this Pipes script are different than true offset curves (no showed here)

> Remark : curves generator resulting from this Pipes script are
> different than true offset curves (no showed here)

Hi Pilou - in this case it looks like that is because of the varying radius - I mean different radius at start and end.

A normal offset curve has a constant distance at all spots, that would be more like the same radius at start and end...

- Michael

Of course :)

Michael,

Could it be possible to have few informations concerning the pipe created with an information box or inside the creation window ?? : Surface and lenght (of the original rail). Maybe the "informations box" is in project for version 2 ?

Thanks. Pierre.

Hi Pierre, there isn't any way for a script to determine the length of a curve right now, sorry.

> Maybe the "informations box" is in project for version 2 ?

Yup, I'm not sure if this one will be in the properties box or as a command in a separate "Analyze" toolbox, but I definitely want to add some analysis commands such as determine length of a curve, volume of a solid, etc... for v2.

- Michael