基于CorelDRAW的地图自动矩形分幅方法及实现

Realization of Automatic Rectangular Map Subdivision Based on CorelDRAW

地图分幅可分为经纬线分幅和矩形分幅,编制地图集时一般先对整个制图区域进行地图投影,再使用矩形分幅。在运用CorelDRAW进行地图集编制时,不仅地图分幅效率低下,更无法实现自动化和批量化。本文阐述了地图矩形分幅的两种形式和CorelDRAW地图数据的组织,提出一种基于CorelDRAW的地图自动矩形分幅方法,通过定制地图分幅程序,实现大幅地图自动矩形分幅。实践表明,在大型地图集编制中,该方法能减少大量重复操作,节约作业时间,提高生产效率。

Map subdivision can be divided into longitude-latitude line subdivision and rectangular subdivision.When compiling an atlas,map projection is usually carried out on the whole cartographic area in a large size first,and then rectangular map subdivision is used.When using CorelDRAW to compile the atlas,not only the map subdivision efficiency is low,but also the automation and mass quantification cannot be realized.In this paper,two forms of rectangular subdivision and the organization of CorelDRAW map data are described,and an automatic rectangular subdivision method based on CorelDRAW is proposed.Through development and customization of map subdivision program,automatic rectangular subdivision of large map is realized.The practice shows that this method can reduce a lot of repeated operations,save time and improve production efficiency in large-scale atlas compilation.