@inbook {IOPORT.05867819, author = {Bae, Seok-Hyung and Kijima, Ryugo and Kim, Won-Sup}, title = {Digital styling for designers: 3D plane-symmetric freeform curve creation using sketch interface.}, year = {2003}, booktitle = {Computational science and its applications -- ICCSA 2003. International conference, Montreal, Canada, May 18--21, 2003. Proceedings, Part III.}, isbn = {3-540-40156-3}, pages = {701-710}, publisher = {Berlin: Springer}, doi = {10.1007/3-540-44842-X_71}, abstract = {Summary: The 3D evaluation of design shapes is an essential step in product styling. Thus, physical models of final-stage design alternatives have been made in tradition, and recently the effort to substitute them with CAD models has been tried. Whereas, designers in the early phase of the design-development stage where almost design concepts are determined, still use raster-type 2D graphics S/Ws. It causes not only the difficulty of evaluating 3D shapes but also the serious severance of a digital dis-connectivity with downstream processes. This paper presents a method of directly constructing 3D plane-symmetric freeform curves with a sketch interface, as the first step of developing a sketch-based 3D-freeform shape creation S/W for designers. A curve drawn by the designer within the see-through box in an arbitrary perspective view, is simultaneously converted to a real space curve without the 3D ambiguity problem except only special cases to be specified.}, identifier = {05867819}, }