typedef int PK_taper_method_t;
This data type specifies the method which will be used to construct the
taper surfaces of the main taper faces.
It has four values :
PK_taper_method_isocline_c Produces ruled isocline surfaces satisfying the
taper condition. If the angle between the taper
direction and the curve tangent happens to be
smaller than the taper angle anywhere along the
curve, this method will fail to construct the
taper surface.
This method produces taper surfaces for mould
design.
PK_taper_method_curve_c Produces ruled surfaces whose ruling direction
is in the plane containing the taper direction
and the direction perpendicular to the taper
direction and the reference edge's curve
tangent.
PK_taper_method_surface_c Produces ruled surfaces whose ruling direction
is in the plane containing the taper direction
and the tapered face' surface normal.
PK_taper_method_offset_c Produces ruled surfaces whose ruling direction
is that from a point on the reference edge's
curve to a point on the "offset curve" on the
given "top surface". Viewing from the taper
direction, the "offset curve" is a curve that
offsets the given distance from the reference
edge's curve.
