Hi, i'm afraid it's not possible to create this roof completely with RailClone. The plugin is not designed to work over complex UV Surfaces.
RailClone includes a Surface
feature, but just to conform the segments along the local Z axis (similar to the XY mode of Forest Pack).
There are some limitations, as well. I.e. Segments must not extend beyond the Surface limits, and geometry is not conformed along the Y axis, only aligned with the Surface normal at the Segment's position.
In the attached scene you can find an example of this technique, to generate the slats (similar to the race track case). Please note it's far from perfect:
- I created a Spline following the middle point along the Surface perimeter. It's used as Base Object for the Linear Generator.
The Surface normal is used to align the slats in the Y axis (Segment->Deform->Align Y with Surface).
- I generated other spline from the Surface border, which is used as Clipping area to cut the slats.
I had to generate long slats and cut them with the Clipping Area, because actually RC has not a Generator along two splines (that's in our to-do list).
For this reason, some slats doesn't align well at both sides of the Surface border. You could refine the banking angle, adjusting manually the vertices of the base spline.
I know this is not a real solution. But i hope it helps as proof of concept.