Compute geometries and label locations
setup_geometry(
x,
fills,
edges,
labels,
quantities,
annotations,
n,
merged_sets,
placement_opts = NULL,
do_complement_label = FALSE
)a list object with slots for the various objects
an object of class 'euler'
fills
edges
labels
quantities
number of vertices to use to render each ellipse
which sets have been merged?