I am trying to create a floor from the blue polycurve in image 2. After many attempts, this is the closest I’ve been of getting it, however, when it is created in Revit, the floor is still horizontal (image 1) so I am afraid this is unsuccessful again. Could please anyone give some insight of any possible solution?
Floors in Revit cannot be bent in that way, unless you modify the sub elements and add multiple points across the edges to get your curve. It might be better for you to keep it as a surface and extrude it for your thickness. Hope this helps. Good luck.