一种基于关系模型的动态内容表达方法与实现  

Dynamic Content Expression Method and Its Implementation Based on Relationship Model

作　　者：田野[1] 张新家[1] 张平[1] 张慧翔[1] 

机构地区：[1]西北工业大学自动化学院,陕西西安710129

出　　处：《计算机技术与发展》2013年第7期62-65,69,共5页Computer Technology and Development

基　　金：国家自然科学基金资助项目(60802084)

摘　　要：目前对三维建模系统的研究多集中于图形性能的改进,而对系统动态内容表达的研究相对缺乏。在此背景下,文中针对性地提出一种基于关系的动态内容表达方法。针对关系的动态背景,建立过程模型;针对关系的作用方式,建立关系模型;并在概念模型基础上设计相应的模型组织与作用方式。通过概念模型对数据进行包装,结合模型的组织作用方式,系统规范了三维图形应用的动态内容表达,并引入一种基于关系的内容表达,以简化动态内容的创建过程。借助OpenSceneGraph三维图形引擎,对提出的三维动态内容表达机制进行了实现,验证了方案的可行性和有效性。Current research about the three-dimensional modeling system design focuses on graphics performance while neglecting to the dynamic content expression ability. Against this background,present a dynamic content expression method based on relationship model, a novel approach that aims to improve the dynamic content expression. It introduces the procedure model that models the dynamic hack- ground of the relationship, the relationship model based on relationship mechanism, and designs the organizational structure of models and the expression worldlow. With concept models encapsulating data, combined the model organization and workfiow expressing actions, the proposed system formalizes the dynamic content expression of 3D graphics applications, and brings a new expression method based on relationship that simplifies the generation of dynamic content. With the OpenSceneGraph graphics engine, an experimental implementation of the proposed method is developed to validate the feasibility and effectiveness.

关 键 词：三维图形应用 动态内容表达 过程模型 关系模型 

分 类 号：TP39[自动化与计算机技术—计算机应用技术]