On the base of analyzing the character and structure of the point, line, area symbols, a data structure of map symbolbase which serves the symbolized output in digital mapping is put forward.
Military Geographic Information System symbol is the base component of the MGIS, it's necessary to research the method of the MGIS symbol producing and controlling.
本文围绕MGIS符号的分类及其结构、生成方法和控制策略问题进行深入的分析、研究。
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Now, the main methodology of AGD includes: numeric based method, symbol based method, rule base method and graph based method.