Get the object layer in grasshopper

[revink]

Hi, I am trying to do something I thought pretty simple but I am struggling in grasshopper: getting the object layer of one or multiple objects.

here is my file and the error message, what am I getting wrong? This works in the Rhino IDE but NOT in a grasshopper component

import Rhino

doc = Rhino.RhinoDoc.ActiveDoc

rhino_obj = doc.Objects.FindId(x)

if rhino_obj:

layer_index = rhino_obj.Attributes.LayerIndex

layer_item = doc.Layers\[layer_index\]

layer_name = layer_item.Name

print(layer_name)

a = layer_name

else:

print("Object not found in Rhino document")

With rhinoscriptsyntax I would just use rs.objectlayer(x)

Nothing of this works in grasshopper

identify layer.gh (3.9 KB)

[martinsiegrist]

Your script works fine with referenced geometry.

Once you internalise the geometry, it is no longer Rhino geometry so there is no layer…

[revink]

Thanks Martin, but it still doesn’t for me, what could be the issue?

test object.3dm (64.3 KB)

[revink]

see this is a referenced geometry, I get the GUID but not the layer name

[martinsiegrist]

Change the type hint to Guid

Are you sure you need this in a script? Grasshopper has native tools to retrieve the object layer.

[revink]

Thanks Martin that works! And thanks for pointing out there was a native tool too, I didn’t know! (Although it seems to give some additional string not needed, but I can cull that “model layer : “)

[martinsiegrist]

[julian.weber]

Thanks Martin, had the same issue! Any idea how to get the section style?
Cheers, Julian

[martinsiegrist]

@julian.weber

section style

I have no idea

[wim (Wim Dekeyser)]

Hi Julian -

@julian.weber

Any idea how to get the section style?

That’s not yet possible.
→ RH-86137 Grasshopper: Additional Layer Properties
-wim