The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 19, 2008
Filed:
Dec. 03, 2002
Kiwamu Kase, Wako, JP;
Yoshinori Teshima, Wako, JP;
Shuntaro Yamazaki, Wako, JP;
Shugo Usami, Wako, JP;
Akitake Makinouchi, Wako, JP;
Kiwamu Kase, Wako, JP;
Yoshinori Teshima, Wako, JP;
Shuntaro Yamazaki, Wako, JP;
Shugo Usami, Wako, JP;
Akitake Makinouchi, Wako, JP;
Riken, Saitama, JP;
Abstract
A method of converting three-dimensional shape data into cell internal data. The method includes an oct-tree division step of dividing external data including boundary data of a target object into rectangular parallelepiped cells having boundary planes orthogonal to each other by oct-tree division. The method further includes a cell classification step of classifying each of the cells into an internal cell positioned inside or outside the target object or a boundary cell including the boundary data, and a cut point determination step of determining cut points of edges of the boundary cell based on the boundary data. The method further includes a boundary surface determination step of connecting cut points to form a polygon, and determining the polygon as the cell internal data when the number of the determined cut points is no fewer than 3 and no more than 12.