class interface LOCAL_HELIX creation procedures make exported features set_position (p: VECTOR_3) set_direction (d: VECTOR_3) set_curvature (c: VECTOR_3) make,set (p, d, c: VECTOR_3) position,direction,curvature: VECTOR_3 end interface -- class LOCAL_HELIX
curvature
is not VECTOR_3
, needs
to be properly defined.