Hello,
i want to create a new familyInstance and delete the old one → like refresh the placement.
import clr
import sys
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
#variables
p1 = IN[0]
fam = IN[1]
level = IN[2]
#functions
def DeleteElement(el):
t1 = SubTransaction(doc)
t1.Start()
deleted = doc.Delete(el.Id)
t1.Commit()
#transaction
trans = Transaction(doc, "Place FamilyInstance")
trans.Start()
ins = doc.Create.NewFamilyInstance(p1, fam, level,Structure.StructuralType.NonStructural)
DeleteElement(ins)
trans.Commit()
OUT = "Done"
thats my code so far
KR
Andreas
Online Documentation for Autodesk's Revit API: 2015, 2016, 2017, 2017.1, 2018
Hello @Draxl_Andreas
Is there a reason why you don´t want to just move (translate) the family instance to a new location?
Regarding your code, you are coding with revit methods (Create.NewFamilyInstance). Revit methods don´t work with dynamo points, they need XYZ as you can see in the documentation:
Online Documentation for Autodesk's Revit API: 2015, 2016, 2017, 2017.1, 2018
You have to convert like that
point.ToXyz()
Or you can create an XYZ like that
XYZ(point.X, point.Y, point.Z)
Regarding your error, it says input 0 is a list, what is not right as it should be a single point, strange.
Should the code work with a list of points when finished?
1 Like
@gerhard.p ,
it helped, for any reason i have to feed with a symbol instead of a instance … how?
i just test it with a single point …
its more about learning transactions … i want to place a instance on en existing one and delete the old
KR
AndreasP1.rvt (604 KB)PyTransaction.dyn (14.5 KB)
If you want to place a family instance with standard methods you have to define which family(type) you want to use. It´s like in revit UI, you can not place an instance without knowing which family to use.
If you want to use a famliy instance as input you have to add something to your code. You have to get the family symbol from the instance.
family_symbol = family_instance.Symbol
family symbol is pretty much the family type.
1 Like
This is because you did not unwrap your element.
if you don´t unwrap your element you can use element.Type
if you unwrap your element you can use element.Symbol
3 Likes
@gerhard.p ,
it resists to become a symbol, CPython and IronPython 2 does not work
Hi,
import clr
import sys
clr.AddReference("RevitServices")
import RevitServices
from RevitServices.Persistence import DocumentManager
from RevitServices.Transactions import TransactionManager
clr.AddReference("RevitAPI")
import Autodesk
from Autodesk.Revit.DB import *
doc = DocumentManager.Instance.CurrentDBDocument
elt=IN[0]
dec=IN[1]
fam_instance=UnwrapElement(elt)
pos=fam_instance.Location
new_pos=XYZ(pos.Point.X+dec[0]/0.3048,pos.Point.Y+dec[1]/0.3048,pos.Point.Z+dec[2]/0.3048)
TransactionManager.Instance.EnsureInTransaction(doc)
pos.Point=new_pos
TransactionManager.Instance.TransactionTaskDone()
OUT = pos,str(fam_instance)
if you want to use a new point (you convert it to Point.Revit with the dynamo add-ons)
1 Like
You can work with the type. Symbol and type is the same in this context.
p1 = IN[0]
fam = UnwrapElement(IN[1])
level = UnwrapElement(IN[2])
symb = fam.Symbol
trans = Transaction(doc, "Place FamilyInstance")
trans.Start()
ins = doc.Create.NewFamilyInstance(p1.ToXyz(), symb, level, Autodesk.Revit.DB.Structure.StructuralType.NonStructural)
trans.Commit()
OUT = ins
2 Likes
