| grobName {grid} | R Documentation | 
This function generates a unique (within-session) name for a grob, based on the grob's class.
grobName(grob = NULL, prefix = "GRID")
grob | 
 A grob object or   | 
prefix | 
 The prefix part of the name.  | 
A character string of the form prefix.class(grob).index
Paul Murrell