Hello,
I try to learn stuff regarding python, is there any usage for “magic methods and attributes” ?
import clr
clr.AddReference('RevitAPI')
from Autodesk.Revit.DB import *
from Autodesk.Revit.DB.Structure import *
clr.AddReference('RevitAPIUI')
from Autodesk.Revit.UI import *
clr.AddReference('System')
from System.Collections.Generic import List
clr.AddReference('RevitNodes')
import Revit
clr.ImportExtensions(Revit.GeometryConversion)
clr.ImportExtensions(Revit.Elements)
clr.AddReference('RevitServices')
import RevitServices
from RevitServices.Persistence import DocumentManager
from RevitServices.Transactions import TransactionManager
doc = DocumentManager.Instance.CurrentDBDocument
uidoc=DocumentManager.Instance.CurrentUIApplication.ActiveUIDocument
wall = UnwrapElement(IN[0])
nam = IN[1]
def __getattr__(self, name):
return self.AsValueString(name)
OUT = __getattr__(wall,nam)
can i call a name of wall with that? how can i use this kind of magic ?
KR
Andreas
This method __getattr__ will allow you to “catch” references to attributes that don’t exist in your object, and/or it can also be used to generate an attribute dynamically
In all cases the object must be constructed from a Python class, (not Net Class)
however, you can use the getattr() method to set the default value if the attribute no exist
import sys
import clr
clr.AddReference('ProtoGeometry')
from Autodesk.DesignScript.Geometry import *
pt = Point.ByCoordinates(4,5,0)
# example 1
# try to get 'XY' attribute,
# if attribute no exist return a default value 'None' instead of an error
a = getattr(pt, "XY", None)
# example 2
# try to get 'XYZ' attribute,
# if attribute no exist return each coordinates instead of an error
b = getattr(pt, "XYZ", (pt.X, pt.Y, pt.Z))
OUT = a, b
1 Like
Hello @c.poupin ,
that means all my elements in Revit are .Net elements?
this kind methods want work on relular categories and instances…
Even when they are expoxed to the UnwrapedElement list…?
KR
Andreas
yes
UnwrapedElement() allows finding the native Revit API objects (that DynamoAPI has wrapped beforehand)
if you want use __getattr__ you need to build your own class
1 Like
