论述了在数字制图环境下地图输出的特点，在分析了地图上点、线、面符号特征和构造原理的基础上，提出了一种用于数字地图符号化输出的地图符号库数据结构。
On the base of analyzing the character and structure of the point, line, area symbols, a data structure of map symbol base which serves the symbolized output in digital mapping is put forward.
统计符号是地图制图中最受欢迎和最为广泛应用的地图符号之一。
Statistic symbol is one type of the most welcomed and most popularly used map symbol.
开放式地图符号体系的设计在GIS以及数字地图制图系统中占有重要的地位。
The design of open map symbol system plays an important role in GIS and cartography.
开放式地图符号体系的设计在GIS以及数字地图制图系统中占有重要的地位。
The design of open map symbol system plays an important role in GIS and cartography.
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