Use grasshopper to select Rhino objects

[Jack_Zeng]

Hi all, if I have a few guids stored in grasshopper, how can I make them being selected in Rhino? I think there is some plugins can achieve it? Or by Ghpython?
Many thanks

Select Rhino Ojects by id.gh (7.8 KB)

[James_Parrott]

1. Place an Iron Python 2 component (I’ve not tested this in CPython3 - porting is straightforward, change System.Guid to uuid.uuid).

2. Change the x input to list mode.

3. Connect it to the Guid param.

4. Open the Python component and add the following code:

import Rhino
import rhinoscriptsyntax as rs
import scriptcontext as sc
import System

# Make sure they are Guids, not just strings.
guids = [System.Guid(item) for item in x]

sc.doc = Rhino.RhinoDoc.ActiveDoc

try:
    rs.SelectObjects(guids)
finally:
    sc.doc = ghdoc

If the guid objects don’t work for something, it may be necessary to search for the geometries they correspond to:

geoms = [Rhino.RhinoDoc.ActiveDoc.Objects.FindGeometry(guid) for guid in guids]

https://developer.rhino3d.com/api/RhinoScriptSyntax/#object-SelectObjects

[AndersDeleuran]

You probably just need to change the script context to the Rhino document before calling the unselect/select rhinoscriptsyntax functions:

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

[Jack_Zeng]

Cool, thanks James, thanks Anders, I will give it a shot~

[AndersDeleuran]

Just tried and this indeed worked:

250103_SelectObjects_00.gh (5.0 KB)

[Jack_Zeng]

Nice, thanks Anders