数字城管基础数据库多尺度表达技术探讨  

Research on multi-scale expression technology of basic database of digital city management

作　　者：杨永崇[1] 辛修建 

机构地区：[1]西安科技大学测绘学院,西安710054

出　　处：《测绘科学》2016年第7期211-214,共4页Science of Surveying and Mapping

基　　金：国家自然科学基金项目(51409204);嘉兴市科技计划项目(2013AY11018)

摘　　要：针对数字城管基础数据库多尺度表达的需求和缩放可视化中出现的问题,在研究二维电子地图的多尺度表达方法的基础上,提出并设计了基于分级显示的数字城管数据库多尺度表达技术。它将数据库中的各类数据进行有规则的分级,使其在不同的比例尺下显示出来。该文以宝鸡市为例进行了数字城管基础数据库多尺度表达的实验,结果证明基于分级显示的数字城管基础数据库多尺度表达技术是可行的。Aiming at the need of multi-scale expression of basic database in digital urban management and the problem of zooming and visualization, the multi-scale expression of basic database in digital urban management was designed based on hierarchic display on the basis of the multi-scale expression of two-dimensional electronic map. Different types of dataset were classified well-regulated and displayed in diverse scales. Taking Baoji city as an example, the experimental results proved that the multi-scale expression of basic database in digital urban management based on the hierarchic display was available. This technology has important reference value for the study of multi-scale expression of various geographic databases.

关 键 词：电子地图 数字城管 空间数据库 多尺度表达 

分 类 号：P285[天文地球—地图制图学与地理信息工程]