"Picture" object, or
a path element thereof,
into an appropriate grid grob. Not usually called directly
by the user; usually called by grid.picture.symbolize(object, x = unit(0.5, "npc"), y = unit(0.5, "npc"),
size = unit(1, "npc"), units = "npc", ...)"Picture" object.x, y,
or size are specified as simple numeric values."Picture")
or a "symbolFill" or "symbolStroke" object
(when given a single picture path).grid.picture and
symbolize