calling rhino command with "selected" item

Replies to This Discussion

Permalink Reply by Giulio Piacentino on February 15, 2017 at 3:20am

Hi Mark

you could change the target of the GhPython document:

import scriptcontext as sc
import Rhino
sc.doc = Rhino.RhinoDoc.ActiveDoc

Then the selection methods will work:

import rhinoscriptsyntax as rs
rs.SelectObjects([x,y])

Here is an example... (draw two curves and make Grasshopper get them).

You can put back the Grasshopper document like this:

sc.doc = ghdoc

I hope this helps.

Giulio
--
Giulio Piacentino
for Robert McNeel & Associates
giulio@mcneel.com

Attachments:

• select.gh, 3 KB

Permalink Reply by Mark Bronson on February 15, 2017 at 7:57am

Sorry I was not clear - I dont want to have operator involved in the selection. The command I need to execute will, in usual operation, prompt for selection. I want to set as selected the two curves I have generated in my grasshopper script before running the command. Goal is to have the command execute without any operator intervention. I am (reasonably) sure it is possible, but is beyond my current understanding of rhino SDK. 

thanks

Permalink Reply by Mark Bronson on February 16, 2017 at 8:15am

Thank you for the response. It has (finally) become clear that geometry created in grasshopper can't be selected in Rhino until baked. I found both Elefront and Human which offer components to bake with an ID - which makes two step quite reasonable. Once GUID is in hand it seems possible to Find the object and then just set/clear using Select method. Among the (many) things I remain unclear about: if I reference a geometry (e.g. curve) into grasshopper and connect to my script I get something that looks like a guid. But clearly not "the" guid - but if I run through the ID component I get another string that does work (i.e. in rhinodoc.Objects.Find). I assume that the first is a grasshopper document specific version of the original - I have not found how i the ID component referencing  it back to the rhinodoc guid.