摘要
地理信息系统 (GIS)是由计算机系统、地理数据和用户组成 ,为多学科提供服务的新兴学科。GIS的应用系统由硬件、软件、数据、人员和方法五个部分构成 ,其软件系统应具备数据输入、数据编辑、数据存贮与管理、空间查询与空间分析、可视化表达与输出等五项基本功能。图形数据库的形成主要是通过光栅扫描矢量化方法 ,对地质矿产和地物化遥资料及其它地质资料进行数字化 ,按照图层划分方案建立关系属性表 ,属性库建立的目的主要是从矿产预测角度出发 ,对有预测意义的属性信息进行有效管理。
Geographic Information System (GIS) that is composed of computer system, geographic data and consumers is one of new subjects to provide service for multiple sciences. The application system of GIS consists of hardware, software, data, technician and method, the software in which is required to have five basic functions including data input, data compilation, data storage, management, space inquiring, space analysis, visible expression and output. The graphic database is compiled by means of vectorization of raster scanning and digitization of the information of geology and mineral resources, data of geophysics, geochemistry and remote sensing, and other geological data, thus creating an attribute table showing the relations based on graphic divisions. The establishment of the attribute table is to effectively arrange the attributive information that is significant for prediction of mineral resources.
出处
《陕西地质》
2003年第2期89-96,共8页
Geology of Shaanxi
