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An integer parameter for controlling which lines are drawn on a moulding profile, by type.

Deployed by MouldingSegment. Depending on the moulding type, lines (LIN_) are placed thru different points.

Values:
1 (typ of crowns) top-front, bottom-back
2 (typ of base, shoe) top-back, bottom-front
3 (typ of caps) top-back
4 (typ of casings) top-back, bottom-back

MouldingAssembly passes the parameter blindly (without affecting it).

The moulding tools (Crown, Rake, Base) set the value of lineSet when calling MouldingAssembly.