Attach UserData to Layer

Rhino Developer
1

Hi guys,

Just was curious if it is possible to attach User Data to Layer in the same way as it is possible with objects.
If yes - how can I assign and read user data from the layer with RhinoCommon?

Thanks in advance,
Dmitriy

2

Never tried this before, but this seems to work (you need to have a “Default” layer) :

import Rhino
import scriptcontext as sc

layers=sc.doc.Layers
layer_index=sc.doc.Layers.Find("Default",True)
layer=layers[layer_index]
layer.SetUserString("TestKey","This is a test")
layer_string=layer.GetUserString("TestKey")
print layer_string

>>>"This is a test"

–Mitch

3

Yes, you sure can.

4

Thanks.

5

I have a problem.
Can it support the Undo/Redo function ?

6

Yes, adding users strings can be undone/redone…

7

Thanks!

8

Reminds me on something I considered a bug: The command _SetUserText cannot be undone.
To repeat: Create an object, SetUserText, Undo and the object is gone.

9

I agree.

http://mcneel.myjetbrains.com/youtrack/issue/RH-29100