Function sweep_solid_rising 

pub fn sweep_solid_rising(
    tool: &SolidTool,
    motion: &RisingTurn,
    clip: &SweepClip,
) -> Result<BrepSolid, KernelRefusal>

The sweep of tool along a turn whose rise grows as it turns, where it lies in clip (as sweep_solid_clipped). Its front and back are those at the middle of the motion; a tool whose faces change side along it is refused.