Something like this...

comp_instance = (Sketchup.active_model.entities.select{ |e| e.typename == "ComponentInstance"}).first Sketchup.active_model.entities.add_edges( ORIGIN, comp_instance.transformation.origin )

Hi,
The error message cannot be the one you're showing:
ans=Geom.Point_in_polygon_2d point,points

Point_in_polygon_2d is not the name of a method
and "point_to_polygon_2D" is in the error message. "in" instead of "to", upcase... 😲

Also, webDialog callback actions don't get changed if you have persistent instances that call the dialog.