plane p
trim p p 0 1 0 1
convert p p
incudeg p 3
incvdeg p 3
movep p 2 2 0 0 1
nbiso p 20 20
offset offs1 p 0.3
uiso curv_u2 offs1 0.2
copy curv_u2 result

checklength result -l 1.3447354805936931