计算机工程
計算機工程
계산궤공정
COMPUTER ENGINEERING
2014年
7期
258-262
,共5页
郝晓红%张丽平%赵龄强%李松
郝曉紅%張麗平%趙齡彊%李鬆
학효홍%장려평%조령강%리송
空间数据库%方位关系%距离关系%动态邻接关系%反方位关系%关系模型
空間數據庫%方位關繫%距離關繫%動態鄰接關繫%反方位關繫%關繫模型
공간수거고%방위관계%거리관계%동태린접관계%반방위관계%관계모형
spatial database%orientation relation%distance relation%dynamic adjacent relation%reverse orientation relation%relation model
3D方位关系的表示和分析技术在3D GIS、空间数据库、智能交通控制、3D游戏和智能机器人等领域具有重要作用。为弥补已有方法表示精度不高的不足,将定性距离关系和3DR39方向关系模型相结合,提出一种新的能处理和分析大量复杂方向和位置的关系模型,即3DR39-3d方位关系模型。基于3DR39-3d模型处理复杂的动态方位关系,探讨基于对象运动的动态方位关系和基于盒空间扩张的动态方向关系的特性和规律。为处理空间方位关系的反方位关系问题,给出3DR39-3d模型的基本方位空间元素的反关系。理论研究和比较分析表明,3DR39-3d模型能表示和分析更为丰富的复杂方位关系,增强空间数据库3D方位关系的表示和处理能力。
3D方位關繫的錶示和分析技術在3D GIS、空間數據庫、智能交通控製、3D遊戲和智能機器人等領域具有重要作用。為瀰補已有方法錶示精度不高的不足,將定性距離關繫和3DR39方嚮關繫模型相結閤,提齣一種新的能處理和分析大量複雜方嚮和位置的關繫模型,即3DR39-3d方位關繫模型。基于3DR39-3d模型處理複雜的動態方位關繫,探討基于對象運動的動態方位關繫和基于盒空間擴張的動態方嚮關繫的特性和規律。為處理空間方位關繫的反方位關繫問題,給齣3DR39-3d模型的基本方位空間元素的反關繫。理論研究和比較分析錶明,3DR39-3d模型能錶示和分析更為豐富的複雜方位關繫,增彊空間數據庫3D方位關繫的錶示和處理能力。
3D방위관계적표시화분석기술재3D GIS、공간수거고、지능교통공제、3D유희화지능궤기인등영역구유중요작용。위미보이유방법표시정도불고적불족,장정성거리관계화3DR39방향관계모형상결합,제출일충신적능처리화분석대량복잡방향화위치적관계모형,즉3DR39-3d방위관계모형。기우3DR39-3d모형처리복잡적동태방위관계,탐토기우대상운동적동태방위관계화기우합공간확장적동태방향관계적특성화규률。위처리공간방위관계적반방위관계문제,급출3DR39-3d모형적기본방위공간원소적반관계。이론연구화비교분석표명,3DR39-3d모형능표시화분석경위봉부적복잡방위관계,증강공간수거고3D방위관계적표시화처리능력。
Presentation and analysis techniques of the 3D orientation relations play the important role in 3D GIS, spatial database, intelligent traffic control, 3D game and intelligent robot. To remedy the deficiency that the accuracy of the existing methods is not high, the 3DR39-3d orientation relation model is proposed based on the qualitative distance relations and the 3DR39 direction relation. The 3DR39-3d orientation relation model can process and analyze the massive complicated information of the direction and position of the spatial objects. To deal with the complicated dynamic orientation relation by the 3DR39-3d orientation relation model, the dynamic orientation relation based on the motion of the spatial objects and the dynamic orientation relation based on the expansion of the box-space are studied in great detail. To handle the reverse relation of the spatial orientation relation, the reverse relation of the basic orientation space elements is given. The theoretical research and comparative analysis show that the 3DR39-3d orientation relation model can represent and analyze the more complex orientation relation and can enhance the ability to represent the 3D spatial relation of the spatial database.