source($input, $top_cell)
report("SKY130 DRC runset", $report)
deep
threads($thr)
verbose(true)

nwell = polygons(64, 20)
urpm = polygons(79, 20)

nwell.separation(urpm,0.7, euclidian).output(
    "nwell space to urpm",
    "nwell space to urpm: min. nwell spacing to urpm 0.7um"
)