分区动态地形的一种时序模型

陈国军; 赵沁平

分区动态地形的一种时序模型

陈国军^1,2,
赵沁平¹

1(北京航空航天大学计算机学院北京 100083) 2(中国石油大学计算机与通信工程学院东营 257061) (gjchen@mail.hdpu.edu.cn)

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出版历程
- 发布日期: 2006-05-14

A Time Serial Model for Divisional Dynamic Terrain

Chen Guojun^1,2,
Zhao Qinping¹

1(School of Computer Science, Beihang University, Beijing 100083) 2(College of Computer and Communication Engineering, China University of Petroleum, Dongying 257061)

摘要

摘要: 在分布式虚拟环境中，地形因实体作用发生变化.为了使各仿真节点的地形数据保持一致，需要对各节点变化的数据时序化.根据地形局部变化特点，构造了多分区动态地形的时序模型.模型把子区域地形几何数据定义为单纯复合形集，按地形变化时间顺序和空间关系组织成一个偏序集.模型支持地形变化数据动态添加，指定时刻的地形提取.实验表明，基于DAG表示的地形抽取算法利用变化数据间的空间关系提高了计算性能.
- 动态地形 /
- 单纯复合形 /
- 时序模型 /
- 虚拟环境 /
- 分布式交互仿真
Abstract: In distributed virtual environment ，terrain can be changed as a result of the interaction between the entity and the terrain. To maintain consistency and reliability of the simulation it is required to serialize and arbitrate terrain changes. A time serial model for divisional dynamic terrain is built according to terrain local modifications. The model is based on a collection of a divisional terrain data defined as simplicial complexes arranged into a partially ordered set by time and space. Features of the model are to provide an insertion of terrain modification and an extraction of terrain at a particular moment. Experimental results on real terrain data show that the algorithm based on one DAG improves the computing performance of an extraction of terrain.
- dynamic terrain /
- simplicial complexes /
- time serial model /
- virtual environment /
- distributed interactive simulation(DIS)