摘要
本文针对传统数据结构的不足，借鉴二维矢量数据结构，并结合矿山实际情况，提出了用六组拓扑结构来刻划：点－结点，弧，环，曲面，体域和复杂地物之间的拓扑关系。引入“层次树”来动态维护这六组拓扑结构。最后针对一典型的矿山实体，给出了基于这六组拓扑结构的完整描述。实践证明：用本文所提出的六组拓扑结构能够很好地刻划出矿山实体的特点，“层次树”的引入则可大大减少数据维护所需的辅助操作。
Discussing the shortcoming existing in the traditional data structure and according to the underground mining condition and referring to 2D vector GIS topologic data structure, the authors propose six groups structures to describe topologic relations among six elements: Point -node, ARC, Ring, Surface, Body, and Complex object.“Levels -tree”is to be used to maintain the six group topologic structures dynamically. Finally, the authors give a whole description of a typical complex object of underground mining.Some experiments are made to prove that the six group topologic structures raises the needs for spatially oriented GIS form the points of view of mining related activities and the data structure on maintain topologic structure can be reduced to a large extent by using the “Levels -tree” technique.
出处
《测绘学报》
EI
CSCD
北大核心
1999年第1期41-44,共4页
Acta Geodaetica et Cartographica Sinica
基金
国家自然科学基金
