The fractal analysis of spatial structure of urban system shows that the distribution of cities in GuangXi exhibits a statistical fractal feature.
基于分形理论对广西城镇体系空间结构进行研究，发现广西城镇空间分布具有统计分形特征。
In this paper spatial data organization structure chart of seamless GIS is advanced, the point, line, area, complex feature, DTM data and attribute merge table of block are discussed in detail.
本文给出了无缝gis空间数据组织结构图，并详细列出了图块的点、线、面、复杂要素、DTM数据以及属性拼接表的数据结构。
An example of this new structure system is analysed with a spatial programme, the reasonable quantity, allocation and the feature of the earthquake resistant wall are obtained.
本文采用空间计算程序，通过对这类房屋结构的实例进行分析，提出了初步的底部加抗震墙合理数量，设置方法以及受力特征。
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