GetObjectEx with subobjects?

Scripting
1

I find this very useful because it returns the selection point. unfortunately it doesn’t allow subobjects.
Is there any other way to get the selection point with GetObject ?
Or to pick subobjects with GetObjectEx?

Thanks

2

Probably have to roll your own on this one - if you have the selection point from GetObjectEx, you can figure out which Brep face it landed on (Brep.IsPointOnFace()) and then sub-select the face…

3

yes, something like that.
But why GetObjectEx doesn’t accept subobjects?

4

Dunno - not a programmer…

import rhinoscriptsyntax as rs
import scriptcontext as sc
import Rhino

def GetSubobjectPickPt():
    sel=rs.GetObjectEx("Pick a polysurface object",16)
    if not sel: return
    objID=sel[0] ; pick_pt=sel[3]
    tol=sc.doc.ModelAbsoluteTolerance
    
    rhobj=rs.coercerhinoobject(objID)
    brep=rhobj.Geometry
    for face in brep.Faces:
        rc, u, v = face.ClosestPoint(pick_pt)
        if rc:
            face_pt=face.PointAt(u,v)
            if face_pt.DistanceTo(pick_pt)<tol:
                if face.IsPointOnFace(u,v)==Rhino.Geometry.PointFaceRelation.Interior:
                    rhobj.SelectSubObject(face.ComponentIndex(),True,True,True)
    rs.AddPoint(pick_pt)
GetSubobjectPickPt()
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