#Placing Ceiling based families through RevitAPI, Python
Sometimes after placing one set of families and while running for another set of families through Dynamo, the first set of families disappear in Revit. This is a major problem the automation engineers are facing with dynamo.
The solution is converting the entire script to python using RevitAPI docs and the problem is solved completely.
Inputs:
- Cad data extraction for block names, x points, y points, and rotation values.
- Level information for elements to be placed
3.3d View - Family types
- Above Level.
- Index of the unique family to be placed.
Below is the Entire code and script attached which can be used to run the script.
import clr
import sys
sys.path.append('C:\Program Files (x86)\IronPython 2.7\Lib')
import math
import System
from System.Collections.Generic import *
clr.AddReference('ProtoGeometry')
from Autodesk.DesignScript.Geometry import *
clr.AddReference("RevitNodes")
import Revit
clr.ImportExtensions(Revit.Elements)
clr.ImportExtensions(Revit.GeometryConversion)
clr.AddReference("RevitServices")
import RevitServices
from RevitServices.Persistence import DocumentManager
from RevitServices.Transactions import TransactionManager
clr.AddReference("RevitAPI")
clr.AddReference("RevitAPIUI")
import Autodesk
from Autodesk.Revit.DB import *
from Autodesk.Revit.UI import *
from Autodesk.Revit.DB.Structure import *
doc = DocumentManager.Instance.CurrentDBDocument
uiapp = DocumentManager.Instance.CurrentUIApplication
app = uiapp.Application
uidoc = uiapp.ActiveUIDocument
def tolist(obj1):
if hasattr(obj1,"__iter__"): return obj1
else: return [obj1]
list1 = IN[0] #Excel data
Level = UnwrapElement(IN[1]) #Levels
elevation = Level.Elevation
view = UnwrapElement(IN[2]) # Views
UIunit = Document.GetUnits(doc).GetFormatOptions(UnitType.UT_Length).DisplayUnits
#pt = UnwrapElement(IN[1]).ToRevitType()
ft = UnwrapElement(IN[3])
Level2 = UnwrapElement(IN[4])
list2 = []
number = IN[5]
def transpose(list1, list2):
# iterate over list to the length of an item
for i in range(len(list1[0])):
row =[]
for item in list1:
# appending to new list with values and index positions
# i contains index position and item contains values
row.append(item[i])
list2.append(row)
return list2
Transpose_list = transpose(list1, list2)
# deleting first item of every index
for j in range (len(Transpose_list)):
del Transpose_list[j][0]
#deleted list
deleted = Transpose_list
# index list as input
Index_list0 = Transpose_list[0]
Index_list1 = Transpose_list[1]
Index_list2 = Transpose_list[2]
Index_list3 = Transpose_list[3]
# Getting unique items
Unique_list = []
for x in Index_list0:
if x not in Unique_list:
Unique_list.append(x)
#selcting item as per index
ID_list = tolist(Unique_list[number])
indexes = []
for k in Index_list0:
for l in ID_list:
if k==l:
indexes.append(True)
else:
indexes.append(False)
filtered_names = [m for indx,m in enumerate(Index_list0) if indexes[indx] == True]
filtered_xpoints = [float(n) for indx,n in enumerate(Index_list1) if indexes[indx] == True]
filtered_ypoints = [float(o) for indx,o in enumerate(Index_list2) if indexes[indx] == True]
filtered_rotation = [float(r) for indx,r in enumerate(Index_list3) if indexes[indx] == True]
#d_points = [ XYZ(pt1, pt2, 0) for pt1, pt2 in zip(filtered_xpoints,filtered_ypoints)]
# Dynamo points ceiling and floor
Point_c = [Autodesk.DesignScript.Geometry.Point.ByCoordinates(pt1,pt2,Level.Elevation*304.8) for pt1, pt2 in zip(filtered_xpoints,filtered_ypoints)]
Point_f = [Autodesk.DesignScript.Geometry.Point.ByCoordinates(pt1,pt2,Level.Elevation*304.8+300) for pt1, pt2 in zip(filtered_xpoints,filtered_ypoints)]
# Converting dynamo points to revit points
rvtPoints_c = [XYZ(UnitUtils.ConvertToInternalUnits(a.X,UIunit),UnitUtils.ConvertToInternalUnits(a.Y,UIunit),UnitUtils.ConvertToInternalUnits(a.Z,UIunit)) for a in Point_c ]
rvtPoints_f = [XYZ(UnitUtils.ConvertToInternalUnits(b.X,UIunit),UnitUtils.ConvertToInternalUnits(b.Y,UIunit),UnitUtils.ConvertToInternalUnits(b.Z,UIunit)) for b in Point_f ]
#Convertinig to revit points ceiling and floor
##Revitpts_f = [ ptf.ToRevitType() for ptf in Point_f]
TransactionManager.Instance.EnsureInTransaction(doc)
#category filtes for floors and ceilings
catfilter_c = ElementCategoryFilter(BuiltInCategory.OST_Ceilings)
catfilter_f = ElementCategoryFilter(BuiltInCategory.OST_Floors)
#Reference intersector for ceilings and floors
ri_c = ReferenceIntersector(catfilter_c,FindReferenceTarget.Element,view)
ri_f = ReferenceIntersector(catfilter_f,FindReferenceTarget.Element,view)
#targets = ri_c.GetTargetElementIds()
#filter = ri_c.GetFilter()
ri_c.FindReferencesInRevitLinks = True
ri_f.FindReferencesInRevitLinks = True
refs_c = [ ri_c.FindNearest(c, XYZ.BasisZ) for c in rvtPoints_c]
refs_f = [ ri_f.FindNearest(f, XYZ.BasisZ) for f in rvtPoints_f]
distances = []
link_elements = []
pts =[]
hitpts = []
families = []
empty =[]
values = []
offset = []
direction = XYZ.BasisZ
#check for null values
Reflist = [True if (ref_c is not None) else False for ref_c in refs_c ]
#Getting index for false values
index = [b for b,val in enumerate(Reflist) if val==False]
#Getting index elements
idx_values = [ refs_f[a] for a in index]
#insert
for d in range(len(index)):
refs_c[index[d]] = idx_values[d]
# Remove null values
allrefs = [ ]
for z in refs_c:
if (z is None):
continue
allrefs.append(z)
#Getting Attributes
for e in allrefs:
if e==None:
distances.append(None)
else:
try:
distances.append(math.ceil(e.Proximity))
ref = e.GetReference()
linkinstance = doc.GetElement(ref.ElementId)
ele = linkinstance.GetLinkDocument().GetElement(ref.LinkedElementId)
link_elements.append(ele)
refp = e.GetReference().GlobalPoint
z_values = refp.Z
offset.append(z_values-elevation)
hitpts.append(refp)
pts.append(Autodesk.DesignScript.Geometry.Point.ByCoordinates(UnitUtils.ConvertFromInternalUnits(refp.X,UIunit),UnitUtils.ConvertFromInternalUnits(refp.Y,UIunit),UnitUtils.ConvertFromInternalUnits(refp.Z,UIunit)))
except:
empty.append("No elements")
#Making family active
if not ft.IsActive:
ft.Activate()
TransactionManager.Instance.EnsureInTransaction(doc)
k = 0
for hitptc in hitpts:
family = doc.Create.NewFamilyInstance(hitptc,ft,Level,StructuralType.NonStructural)
param = family.LookupParameter("Elevation from Level")
di = offset[k]
values.append(param.Set(di))
families.append(family)
k = k+1
TransactionManager.Instance.TransactionTaskDone()
OUT = families
Fixtures placement-NonHosted API.dyn (25.5 KB)