比例符号
- 网络Scale symbol;Proportional Symbol
比例符号-
依比例符号、不依比例符号和半依比例符号数学定义的改进
Improving the Mathematical Definition of Scale Symbol , Non-scale Symbol and Semi-scale Symbol in the Map
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分析了地图符号和ACAD的特点，设计一套比较完善的、开放的、可扩充的、易于调用且可变比例的地图符号系统NMSS。
After analyzing the features of the map symbols and ACAD , the author has designed a Symbol System-NMSS , which is open , expendable , convenient .
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从地形图上提取不依比例居民地符号的试验
The experiment of extraction of ″ non-scaling residence ″ symbols from topographical maps