ボリュームCAD(VCAD)における形状・構造の表現(<小特集>ボリュームデータ,ボクセルデータなどに基づくものつくり支援システム)  [in Japanese] Shape and Structure Representation in Volume CAD(<Special Feature>Computer Aided Design and Production System Based on Voxel or Volume Data Structure)  [in Japanese]

A novel shape and physical attribute handling system Volume-CAD designated for practical and robust use in the total manufacturing process of various industries is introduced The internal data structure "Kitta Cube" was formalized by CW-complexes. Complex is a structure consisting of different dimensional items with consistency (without gap or overlaps), therefore allowing each volume comprising of a material separated by boundaries to be represented completely Volume-CAD could be called "solid and fluid model", as it goes beyond the solid model These models can be used not only in manufacturing plants but also for tracking after shipping until the end of the product life cycle