Multiple Get Objects

Hi,

I have run into an odd issue with my script. I want to get a second edge loop from a subd, but the Rhino document doesn’t prompt me for another selection. I’m guessing that the results of the first ‘get’ are sticking around being reused when i try assigning to another variable (selected_edge_id2)

Any thoughts? Do I need to do something like an unset?

# 
import Rhino
import Rhino.Geometry as rg
import rhinoscriptsyntax as rs
import scriptcontext as sc
import System

def GetSubDEdge():
    
    #select a subd edge, return edge ids of selection
    go = Rhino.Input.Custom.GetObject()
    go.GeometryFilter = Rhino.DocObjects.ObjectType.MeshEdge
    go.SetCommandPrompt('Select subd edge for fairing')
    go.GetMultiple(1,0) # could be optional depending on inputs, add cmd line op?
    
    objrefs = go.Objects()
    subdref = go.Objects() [0].SubD()
    
    edge_ids = [ objref.GeometryComponentIndex.Index for objref in objrefs ]
    
    return edge_ids, subdref

def SubDPointsInfo( subd ):
    # input a subd, return all info of subds points
    verts = subd.Vertices.First
    
    control_net_pts, srf_pts = [ verts.ControlNetPoint ], [ verts.SurfacePoint() ]
    subd_vert_objects = [verts] # temp variable
    subd_vert_ids = [verts.Id]
    
    for vert in range( subd.Vertices.Count  - 1 ):
        current = subd_vert_objects[-1].Next
        subd_vert_objects.append( current )
        subd_vert_ids.append( current.Id) 
        control_net_pts.append( current.ControlNetPoint )
        srf_pts.append(current.SurfacePoint( ) )
        value = [ current.ControlNetPoint, current.SurfacePoint( ) ]
    
    point_loc_tuple =  zip( control_net_pts, srf_pts )
    point_loc = list(map(list, point_loc_tuple))
    
    points_info_dict = dict (zip( subd_vert_ids, point_loc) )
    
    return points_info_dict

def GetSelectedSubDEdgePoints( edges, selected_edge_ids ):
    
    selected_edge_points = [ ]
    for edge in edges:
        if edge.Id in selected_edge_ids:
            
            selected_edge_points.append(edge.VertexFrom.Id)
            selected_edge_points.append(edge.VertexTo.Id)
    
    selected_vertex_ids_set = set ( selected_edge_points )
    srf_pt = [ ]
    for id in selected_vertex_ids_set:
        selected_vertex = verts.Find( id )
        srf_pt.append( selected_vertex.SurfacePoint() )
    
    selected_vertex_ids = [ vert for vert in selected_vertex_ids_set ]
    
    return selected_vertex_ids, srf_pt

#get operation one, no problem
selected_edge_id, subdref = GetSubDEdge() #returns selected edge ids
points_info = SubDPointsInfo( subdref )

#get operation two, rhino document doesn't prompt for another selection?
selected_edge_id2, subdref = GetSubDEdge()

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