| 海量空间信息的分布式运算 |
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| 引用本文： | 陈贤,刘先林,赵文吉.海量空间信息的分布式运算[J].首都师范大学学报(自然科学版),2004,25(4):96-100. |
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| 作者姓名： | 陈贤 刘先林 赵文吉 |
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| 作者单位： | 首都师范大学资源环境与地理信息系统北京市重点实验室,北京,100037 |
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| 基金项目： | 北京市三维数字北京项目，首都师范大学实验室开放基金资助 |
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| 摘 要： | 阐述了在三维数字城市系统中，由于三维资料的显示速度主要依赖于数据调度和逻辑运算的速度，海量数据的调度和频繁的逻辑运算使得单机系统不堪重负，因此通过分布式计算可以在多台计算机上平衡计算负载，也可以把程序放在最适合运行它的计算机上．该分布式运算系统基于COM 中间件技术，运用VC6．0／VC7．1和Oracle9i开发环境，借助于ATL动态模板库、IDL接口定义语言，实现了在三维数字城市系统中海量空间信息的分布式调度和分布式运算．
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| 关 键 词： | IDL COM＋ 海量空间信息 分布式运算 海量数据 数据库 |
The Distributed Computing Large-scale Spatial Data |
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| Chen Xian,Liu xianlin,Zhao Wenji.The Distributed Computing Large-scale Spatial Data[J].Journal of Capital Normal University(Natural Science Edition),2004,25(4):96-100. |
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| Authors: | Chen Xian Liu xianlin Zhao Wenji |
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| Institution: | Capital Normal University Resources Environment and Geography Information Systems Key Lab of Pekin |
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| Abstract: | This paper has explained in 3 dimension virtual reality cities, because the three-dimensional materials one show that the speed depends on the data dispatcher and speed of logic operation mainly, The dispatcher of the magnanimity data and frequent logic operation make the unit system can't bear shouldering a heavy task, Calculate can at many sets of computers balance calculate load through person who distribute, Can put the procedure on the computer most suitable for running it too. This distributed computing is based on COM middleware technology, using VC6.0/VC7.1 and oracle9i developing environment, turning to ATL active template library and IDL interface define language, performing the data's distributed computing and translating in large-scale virtual digital City systems. |
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| Keywords: | distributed computing IDL COM |
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