Realization of sketch input in 3-D modeling interface BlueGrotto

摘要

We have proposed a 3-D modeling interface, BlueGrotto, on the basis of a spatial drawing gesture identification technique named Fuzzy Spline Curve Identifier 3D (FSCI-3D). However, it involves different kinds of operations that make the interface complicated. On the other hand, in regard to 2-D modeling, we have proposed a sequential fuzzy spline curve generator, S-FSCG, and realized a sketch interface with which a user can complete input of geometric curve primitives by nothing but freehand drawing gestures. This paper first investigates applicability of S-FSCG in 3-D space, then realizes a new 3-D modeling interface, BlueGrotto2, with which a user can complete input of solid primitives solely by sketch drawing gestures.