THREE DIMENSIONAL DATA PROCESSING DEVICE AND METHOD, THREE DIMENSIONAL IMAGE GENERATING DEVICE, NAVIGATION DEVICE, AND COMPUTER-READABLE MEDIUM CONTAINING THREE-DIMENSIONAL DATA PROCESSING PROGRAM

摘要

In a three-dimensional data processing technique that uses stereographic data of a solid body to generate a bounding volume of the solid body, the generated bounding volume is used to determine whether or not to draw the solid body within a view volume. An inner quadrangular frame inscribed on an outer quadrangular frame, which encloses a plane outer profile of the solid body, is used as a reference plane for generating the bounding volume.