GhPython print objs' layername

[Jack_Zeng]

Hi all,
I am trying let Ghpython print out all the selected objects’ layername. I can do it in rhinopython but cannot do the same thing in GhPython, does anyone know why? Did it miss something very basic?
Many thanks,

Print Objs’ Layername.gh (3.9 KB)
Print Objs’ Layername.py (145 Bytes)

[Gijs (Gijs de Zwart)]

If you load the objects into grasshopper, they become part of the grasshopper document, and will not have the attributes attached to it. Basically it’s the same as doing a rs.coercerhinoobject() in Rhino Python.
Also read the error message: if you want to do something with the doc objects, you need to set the context to the Rhino doc.

[Jack_Zeng]

Thanks Gijs, in this case, how can I make it compatible with the GhPython script?

[Gijs (Gijs de Zwart)]

it’s not clear to me what you want to do, if you load your objects into gh, they will not be on a layer

[AndersDeleuran]

Have a look here:

Create linear / rectangular lights in grasshopper!

Hi guys. If you want to fiddle with the Rhino document from GHPython, you must explicitly set the script context to target the Rhino document. Here’s one approach: import Rhino as rc import scriptcontext as sc import rhinoscriptsyntax as rs # Set context to Rhino document and disable redraw sc.doc = rc.RhinoDoc.ActiveDoc rs.EnableRedraw(False) # Fiddle with the Rhino document # Set context back to Grasshopper rs.EnableRedraw(True) sc.doc = ghdoc

[Adam_M (Adam Mounsey)]

Here the Python objs input is set to Guid.

Print Objs’ Layername_V2.gh (5.3 KB)

[Jack_Zeng]

Thanks Anders and Adam, this is what I am after~