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１ＧＩＳ技术简介地理信息系统（ＧＩＳ）是反映人们赖以生存的现实世界的现势和变迁的各类空间数据及描述这些空间数据特征的属性，在计算机软件和硬件支持下，以一定的格式输入、存储、检索、显示和综合分析应用的技术系统。它起源于６０年代，至８０年代国外已普及应用...
1GIS technology introduction Geographic information system (GIS) is to reflect the real world people live in the real world situation and changes in all kinds of spatial data and describe the characteristics of these spatial data attributes, in the computer software and hardware support, enter in a certain format, Storage, retrieval, display and comprehensive analysis of the application of technical systems. It originated in the 60s, has been popularized in foreign countries until the 80’s ...