西部1∶50000地形图补充要素研究与表达

The research and expression of supplemental features in surveying and mapping project for 1∶50000 topographic map in west blank region of China

本文首先介绍了国家西部1∶50000地形图空白区测图工程的背景,根据测区地物特征提出了补充西部测图要素的四种途径:要素选取指标调整;地形图原有要素类属性内容扩充;西部特色要素突出表示;地形图新生要素选取。进而,对补充的要素进行几何形状规定和属性表设计。最后针对补充要素的可视化进行了符号设计。

The paper firstly introduced the background of the surveying and mapping project for 1：50 000 topographic map in west blank region of China. Then it suggested four solutions to supply the lack of the features in west region based on the characters of the ground objects ： adjusting the specification of the feature selection ; extending the topographic map features ; outstandingly expressing the west characteristic features; adding new topographic features. The paper also prescribed the geometric shape and attribute table of the supplemental features. Finally, the paper designed the symbols for all supplemental features.