map MAP =Military Aid Program 〔美国〕军事援助计划。 n. 1.地图;天体图;图。 2.〔美俚〕脸,面孔。 3.〔美俚〕(染色体上基因排列的)遗传图。 off the map 〔口语〕不重要的;消失的;过时的;陈腐的。 on the map 〔口语〕存在的;重要的;有名的,占显著地位的,起主要作用的。 put oneself on the map 发生,发现;使自己出名,出人头地。 put sb. [sth.] on the map 使某人[某事]出名。 wipe off the map 把…消灭掉。 vt. 1. 测绘,为…绘制地图;勘测,制订。 2.〔美俚〕测定(染色体中基因的)位置。 map out 规划,安排。
Map digitizing data quality control method 地图数字化数据质量控制方法
At present , the theory and application of topographical mapping system is quite mature . more of them reached the criterion of topographical map and the requirement of map digitizing . however , the deeper application and conversion of digital map to gis are ignored 目前,以单纯成图为目的测量绘图平台开发的理论和应用已经比较成熟,大多数的绘图平台已经基本实现了地形图图示上的绘图要求,能满足测绘部门数字成图的需要。
Topographical maps are the principal frame form of gis , and realization map digitizing and offering gis basic spatial data is one of the important research fields in surveying and gis , which is also necessity of development of science and technology . based on building gis - oriented topographical mapping system theories , this themes apply the advanced objectarx technology , aim at topographical mapping and exporting to gis , and resolve several key problems , such as symbols analysis and building , dtm and contour line automatic drawing , topographical map adjoining , digital image rectifying etc . and it offers models and arithmetic , realizing the general functions of gis - oriented topographical mapping system 本文以建设面向gis的测量绘图平台理论为基础,以autocad平台下objectarx开发技术为核心,围绕地形图的成图和入库( gis数据库)这一课题,对其中的关键技术难题? ?符号库的建立与实现、 dtm与等高线的自动绘制、地形图接边、数字化栅格图像的定向与纠正、接口数据文件的生成等进行了研究分析,提出了相应的模型和算法,实现了面向gis的测量绘图系统的基本功能。
Characteristic and application of gis firstly . secondly it introduced the designing frame of uiims , achieving of the sub - - function and the pattem of the application . it emphasizes on the principle of the map digitizing , the foundation of the data model and encoding means , the construction of the topology data structure , the theory of different format data convertion 本文首先介绍了地理信息系统的研究现状、技术背景、特点及应用;其次介绍了城市基础设施信息管理系统设计框架、具体功能的实现原理及应用模式,其中重点分析了地图数字化原理、数据模型的建立及其编码方法、拓扑数据结构的建立、不同格式的数据相互转换原理。