【摘要】 对环境制图中反映数量特征的定点符号法,包括几种连续和分级比率符号、非比率分级符号以及相关内容数量特征的表示进行了具体分析比较.对表示要素数量特征面状分布的网格法和等值线法,也结合实例进行了评述.更多还原

【Abstract】 The paper discusses how to present the quantitative features in environmental map-ping, analyses and compares the presentation of quantitative features of continuous and grading ratio symbols, non-ratio symbols and related contents. The Use of map grid method and isometric line method in the presentation of the quantitative features of plane distributive elements are also discussed with the practical examples.更多还原