import rhinoscriptsyntax as rs

allobjs = rs.AllObjects()

# draw a closed curve in rhino
rs.Command("_curve Degree=2  0,0,0 50,0,0 15,15,0 50,30,0 15,45,0 50,65,0 0,65,0 Close _Enter")
crv = rs.FirstObject(select=True)

# extrude the curve
rs.Command("_ExtrudeCrv Solid=No 30 _Enter")
srf = rs.FirstObject(select=True)

#use handles to change NURBS shape

#create contourlines in Z-direction and extrude them (floor plates)
rs.Command("Contour 0,0,0 0,0,1 3.0 _Enter")
rs.Command("_ExtrudeCrv Solid=Yes 0.3 _Enter")

# create contourlines in X-diretions and use the pipe command (vertical support)
rs.SelectObject(srf)
rs.Command("Contour 0,0,0 1,0,0 2.0 _Enter")
rs.Command("Pipe 0.2 _Enter")

rs.DeleteObject(srf)