How can we read a rebar set?

@ali.safiaddine
You can try with get_Geometry(opt) in stead:

import clr

clr.AddReference('RevitAPI')
from Autodesk.Revit.DB import *
from Autodesk.Revit.DB.Structure import *

clr.AddReference('RevitNodes')
import Revit
clr.ImportExtensions(Revit.GeometryConversion)
clr.ImportExtensions(Revit.Elements)

rebar = UnwrapElement(IN[0])
view = UnwrapElement(IN[1])

opt = Options()
opt.View = view
opt.IncludeNonVisibleObjects = True
geomEl = rebar.get_Geometry(opt)
OUT=[]
for geomObj in geomEl:
	if geomObj.ToString() != 'Autodesk.Revit.DB.Solid':
		OUT.append(geomObj.ToProtoType())