This paper analyzes the rule of composition of a map of 3d statistic map symbols. They are divided into three kinds: simple symbols, compound symbols and combination symbols.
分析了三维统计地图符号的构图规律，并将其分为简单符号、复合符号和组合符号3类。
This paper analyzes the rule of composition of a map of 3d statistic map symbols. They are divided into three kinds: simple symbols, compound symbols and combination symbols.
分析了三维统计地图符号的构图规律，并将其分为简单符号、复合符号和组合符号3类。
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