PC-based Choropleth Maps(CMS) 에 관하여

Abstract

Computer-assisted cartography has been rapidly developed with the decline of hardware prices in terms of processing power available and the enhancement of mapping softwares. Hosts of PC-based mapping systems are designed and applied in geographical studies as well as other surveying sciences. Most of these programs, however, require rather elaborated hardware systems with cost-effective but still expensive peripherals. CMS is de-signed for the ordinary student's computer environs which even a limited budget can afford. It requires an IBM PC, or IBM compatible, with 512 Kilobyte CPU, Hercules board, monochrome or color monitor, Epson compatible dot matrix printer. A small digitizer is optional but useful. CMS concerns mainly choropleth maps It can be also utilized for drawing outline maps for other uses. The program adopts menu-driven system and consists of eight subsystems or modules(Fig. 1 & 2). It can provide a useful tool not only for cartographic education, but for pioneer studies of geographical subjects.