Development of pants slopers with automatic drafting functions and human body measurement for use in apparel CAD education

In this paper, we describe the development of automatic drafting functions for men´s and women´s pants, which have three new features for educational purposes: (1) step mode for explaining the drafting order; (2) guidance for displaying drafting details and usage procedures; and (3) mechanism for displaying class references. The slopers are well-adapted to many different sizes since their dimensions are determined with reference to 1D and 3D body measurements of 28 third-year university students. We have made experimental use of the slopers for beginner level students (straight pants), intermediate level students (wide pants) and advanced level students (originally-designed pants). The feasibility and effectiveness of these newly developed automatic drafting functions have been proven on the basis of drafting results and evaluations submitted by the beginner level and intermediate level students, and drafting results, fitting and corrections by the advanced level students.