An Index mechanism for multi-scale view in spatial databasesOACSTPCD
An Index mechanism for multi-scale view in spatial databases
There are numerous geometric objects stored in the spatial databases. An importance function in a spatial database is that users can browse the geometric objects as a map efficiently. Thus the spatial database should display …查看全部>>
There are numerous geometric objects stored in the spatial databases. An importance function in a spatial database is that users can browse the geometric objects as a map efficiently. Thus the spatial database should display the geometric objects users concern about swiftly onto the display window. This process includes two operations:retrieve data from database and then draw them onto screen. Accordingly, to improve the efficiency, we should try to reduce t…查看全部>>
ZHANG Yuan-zhi;XIE Kun-qing;MA Xiu-jun;LI Chen-yu;CHEN Zhuo
Department of Computer Science, Peking University, Beijing 100871,P. R. ChinaDepartment of Intelligence Science, Peking University, Beijing 100871,P. R. ChinaDepartment of Intelligence Science, Peking University, Beijing 100871,P. R. ChinaDepartment of Intelligence Science, Peking University, Beijing 100871,P. R. ChinaBeijing Institute of Surveying and Mapping, Beijing 100038,P. R. China
计算机与自动化
multi-scaleR-treevisualizationselectionsimplification
multi-scaleR-treevisualizationselectionsimplification
《重庆邮电学院学报(自然科学版)》 2004 (5)
16-22,7
This work is supported by the Major Project of National Natural Science Foundation (40235056) and the Major Project of Natural Science Foundation of Beijing (4011002).
评论