大比例尺地形图图式符号表达的探讨

Discussion of Cartographic Symbols Expression about the Large Scale Topographic Map

分析了GB/T 20257.1-2007国家基本比例尺地图图式第一部分:1∶500 1∶1000 1∶2000地形图图式较GB/T 7929-1995 1∶500 1∶1000 1∶2000地形图图式符号表达的特点,并在运用GB/T 20257.1-2007图式过程中,提出一些相关地理要素符号的表达处理和个别特殊地理要素的符号表达,为大比例尺地形图生产作业、符号表达规范化提供一些借鉴。

This paper analyzes characteristics of cartographic symbols in comparing GB/T 20257.1 2007 cartograph- ic symbols for national fundamental scale maps partl ：Specifications for cartographic symbols 1 ： 500 1 ： 1000＆1 ： 2000 topographic maps with GB/T 7929-1995 1 ： 500 1 ： 1000＆1 ： 2000 topographic map cartographic symbols. And pro- cessing of the use of GB/T 20257.1 2007, put forward some relevant geographic feature symbol expression processing and some special geographic features of symbols to express, for large scale topographic map production, symbol expression standardization to provide some reference.