Get Geometry from Autodesk.Revit.DB.Line outputs for Crop Region

Geometry
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I’m trying to use the crop region of certain views to create detail lines for Key Plans. I was able to modify this code to process multiple views at once and return their boundaries:

However, the output is a list of "Autodesk.Revit.DB.Line"s as shown below:

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I’ve tried to get the lines’ start points, end points, etc. but the output list of lines is the makeup of a CurveLoop, and I can’t discern how to call upon the lines composing the CurveLoop within the Python script. Here is the code:

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

clr.AddReference("RevitServices")
import RevitServices
from RevitServices.Persistence import DocumentManager
from RevitServices.Transactions import TransactionManager
from System.Collections.Generic import *

doc = DocumentManager.Instance.CurrentDBDocument
views = UnwrapElement(IN[0])
curveloops = []

TransactionManager.Instance.EnsureInTransaction(doc)
for view in views:
	crsms = view.GetCropRegionShapeManager()
	crshapes = crsms.GetCropShape()
	curveloops.append(crshapes)
TransactionManager.Instance.TransactionTaskDone()
	
OUT = curveloops

Maybe I am overlooking something obvious but I’m stumped! Would appreciate any ideas that may point me in the direction of retrieving these Lines’ geometry.

1 Like
2

There is some Python script from the MEPover package that should do the trick.
Its a cool package with a few neat features :smiley:

import clr
clr.AddReference('ProtoGeometry')
from Autodesk.DesignScript.Geometry import *

import clr

clr.AddReference("RevitNodes")
import Revit

# Import ToProtoType, ToRevitType geometry conversion extension methods
clr.ImportExtensions(Revit.GeometryConversion)

#The inputs to this node will be stored as a list in the IN variables.
if isinstance(IN[0], list):
	view = UnwrapElement(IN[0])
	toggle = 0
else:
view = [UnwrapElement(IN[0])]
toggle = 1
	
listout = []
for x in view:
region = x.GetCropRegionShapeManager().GetCropShape()
if len(region) > 0:
	lines = [y.ToProtoType() for y in region[0]]
	listout.append(lines)
else:
	listout.append([])



#Assign your output to the OUT variable.
if toggle == 0:
	OUT = listout
else:
	OUT = lines
5 Likes
3

Thank you so much! That did the trick perfectly - I was thinking someone had to have had this figured out already but couldn’t find anything :smile:

2 Likes
4

Thank you very much every time i got stuck in this issue, and dont know what to do (ToProtoType())

1 Like
5

The Same To me. :joy:Have you figured out this problem？