Collecting the perimeter curves of a Toposolid

Geometry
21

Hi,

alternative with API Revit

image
image1722×1035 155 KB


import sys
import clr
clr.AddReference('ProtoGeometry')
import Autodesk.DesignScript.Geometry as DS

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

clr.AddReference('RevitServices')
import RevitServices
from RevitServices.Persistence import DocumentManager
from RevitServices.Transactions import TransactionManager
doc = DocumentManager.Instance.CurrentDBDocument

clr.AddReference("RevitNodes")
import Revit
clr.ImportExtensions(Revit.GeometryConversion)

topo = UnwrapElement(IN[0])

slabShape = topo.GetSlabShapeEditor()
pair_vertices = [p.EndPoints  for p in slabShape.SlabShapeCreases if p.CreaseType  == SlabShapeCreaseType.Boundary]
OUT = [DS.Line.ByStartPointEndPoint(vertA.Position.ToPoint(), vertB.Position.ToPoint()) for vertA, vertB in pair_vertices]
7 Likes
22

Hi, using Position property in disguised Enumerate
pretty

cordially
christian.stan

1 Like
23

Hi,
These solutions all break if the toposolid has a curved side. The Element.Faces node breaks and unable to return a face. The element.geometry node similarly not working.
They also won’t work if any of the toposolid’s point is not elevated which is a lesser problem and can be worked around. However the curve is a trouble, my toposolids are full of curves.
Is this a limitation of the dynamo nodes or revit api? Does anyone know a workaround?
Thanks

image
image1318×669 87.8 KB

24

Hard to say without a dataset and knowing which version of Revit and Dynamo you are in. Can you post a simple Revit model (similar to the one above) in a new topic so we can test?

25

Hi Jacob,
I have opened an issue on github earlier today with all the info.
https://github.com/DynamoDS/Dynamo/issues/15241
btw this is in 2024.2 and dynamo 2.19.3 with any toposolid you sketch up with a curved side

26

Good to know the version, and thanks for the GitHub issue.

It would help to have an RVT posted though (here or there) as the Dynamo developers know C#, coding, and APIs fairly well, but not necessarily how to create a toposolid with a curved edge. As a result not having a sample file for stuff like this often extends the time to fix stuff by a few hours. If you get a chance to post one it would be appreciated. :slight_smile: