Get the element(s) of the selected edges

Revit
, ,
1

Hello everyone,
how can we get the family or element of every selected edge?

Thanks in advance

Screenshot 1
Screenshot 11605×967 32.9 KB

1 Like
2

Hi,

Yes unfortunately for you, although the node knows which element it is coming from, it’s only returning the Edge as a Curve.

However we can return that ourselves if we use a bit of Python to run the PickObjects command…

import clr

#this gives the object type enumeration
clr.AddReference('RevitAPIUI')
from Autodesk.Revit.UI.Selection import *

clr.AddReference('RevitServices')
import RevitServices
from RevitServices.Persistence import DocumentManager

doc = DocumentManager.Instance.CurrentDBDocument
uiapp = DocumentManager.Instance.CurrentUIApplication
uidoc = uiapp.ActiveUIDocument

element_Id_List = uidoc.Selection.PickObjects(ObjectType.Edge)

OUT = [doc.GetElement(element_Id) for element_Id in element_Id_List]

image
image1754×901 125 KB

Remember to click ‘Finish’ to complete the command :slight_smile:

Hope that helps,

Mark

1 Like
3

Thank you Mark that’s cool but now I only get the families.
Is it possible to get 2 lists. For example the list for edges I selected and the list of families?

5

yes I mean the curves from edges and families

6

you have edges as input, families as output, just create a list and attach both the lists just in case if you dont want the python script to do these in one go.

7

Hi Gideonkarthik,
I actually did that but the output of the curves is (Autodesk.Revit.DB.Reference) while I want them as curves. For example (lines, Nurbscurve, etc)

image
image1061×629 61.8 KB

8

Hi,

Try this :slight_smile:

import clr

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

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

#this gives the object type enumeration
clr.AddReference('RevitAPIUI')
from Autodesk.Revit.UI.Selection import *

clr.AddReference('RevitServices')
import RevitServices
from RevitServices.Persistence import DocumentManager

doc = DocumentManager.Instance.CurrentDBDocument
uiapp = DocumentManager.Instance.CurrentUIApplication
uidoc = uiapp.ActiveUIDocument



element_Reference_List = uidoc.Selection.PickObjects(ObjectType.Edge)
element_List = [doc.GetElement(element_Reference) for element_Reference in element_Reference_List]

line_List = []
for ref, elem in zip(element_Reference_List, element_List):
	line_List.append(elem.GetGeometryObjectFromReference(ref).AsCurve().ToProtoType())


OUT =  element_List, line_List

Hope that helps,

Mark
1 Like
9

That’s awesome, thank you Mark :slight_smile:

1 Like
10

Hello Mark,
Do you know maybe if is it possible to pick edges only of one category elements?
for example in active view we want to select only edges of Floors elements?
Thanks you in advance!

11

Heya,

Just to save these posts getting extra long and having several solutions, it’s best to create a new one and reference this one :slight_smile:

But yes, this solution just uses:
uidoc.Selection.PickObjects(ObjectType.Edge)

We could use
uidoc.Selection.PickObjects(ObjectType.Edge, ISelectionFilter)

There is an example of making a custom selection filter here:

Hope that helps,

Mark

1 Like
13

Mark,

I pick 3 different edges, 1 edge per element and your script returns the element ID, however, it returns the 3 edges sharing the same values, even though the edges selected are differing vectors.

Any thoughts on how this can be resolved?

image