형상 가시화를 위한 경량 파일 포맷 연구

Abstract

A lightweight model is widely used for visualizing and sharing large data in product lifecycle management (PLM). This model is mainly composed of triangular elements to minimize the file size and increase visibility. The lightweight files are frequently converted due to design changes. Files are kept in a server for efficient management. Users need to download files from the server and it takes a lot of time if the file size is large. We propose a method to reduce the file size of a lightweight file for saving download time. The normal direction of a node is required for visualization, it has a lot of data sizes. The normal direction is restored quickly without saving in the file and the file size is also reduced by recycling the triangle information for the symmetric structures and the same shapes. This proposed method has been tested on several models to demonstrate the feasibility.