How to assign slope to created floor

[Elie.Trad]

@shashank.baganeACM I suggest you check the following:

How to create Slab with slope in Revit use NewSlab method ()?

A Polycurve.ByJoinedCurves is not the same as a Revit CurveArray. Inside the Floor.ByOutlineTypeAndLevel, there is code that takes the Polycurve and creates a new Revit CurveArray, then appends each curve into that new CurveArray. You will need similar handling in your Python code for this to work. /// <summary> /// Create a Revit Floor given it’s curve outline and Level /// </summary> /// <param name=“outline”></param> /// <param name=“floorType”></param> /// <param name=“level”></param> …

and:
https://thebuildingcoder.typepad.com/blog/2014/03/creating-a-sloped-floor.html
to get a sloped floor:

But I guess @sovitek approach by adding points will work better for a non-uniform floor as same as the one you are showing.