数字地形图自动化缩编技术的探讨——以南海区1∶500到1∶2000、1∶5000地形图的缩编为例
수자지형도자동화축편기술적탐토——이남해구1∶500도1∶2000、1∶5000지형도적축편위례
Discussion on Automatic Compilation Technology of Digital Topographic Map:Taking Compilation from Scale of 1∶500 to 1∶2 000 and 1∶5 000 in Nanhai District for an Example