The curves making up the
outline.

Indication of whether
the curves represent
theoreticals or tangents

Indication of whether
this outline is defining
the shape of the
pocket/pad at the
placement face of the
pocket/pad, at the
floor face o the pocket,
or at the top face
of the pad.

The parameter containing
the angle value for the
taper, if the
taper_relative_to setting
is
UF_MODL_TAPER_BY_OUTLINE_FACE_NORMALS
or
UF_MODL_TAPER_BY_OUTLINE_FIXED_VECTOR
then this should be an array
of UF_MODL_parm_t where each
is a law using the outline
curve/edge as the spine

Indication of how the
taper angle is measured,
either relative to the
face normals or to a
fixed vector.

The vector from which
the taper angle is
measured, if the taper
is relative to a fixed
vector.