本文从用户对地图数字化采样工艺和数据结构的需求出发，设计了“图斑——链”综合采样方法，并编写了与之相应的程序。
According to the user's requirements for map digitization and data structure, this paper designs a "polygon-chain" combined sampling method and a sampling program.
对构筑三角形网格建立数字地形模型进行了研究，给出了基于散乱点和边建立三角形网格地形模型的生成算法和数据结构。
Generation of triangular meshes for digital terrain model is studied, the triangulation algorithm of discrete points and edges and its data structure are presented.
对数字地图出版中多源矢量数据利用理论进行了探讨和研究，提出了源数据描述、数据结构映射和数据重组的解决方案。
It also discusses the theory about it, and puts forward three steps such as source data description, data structure mapping and data recombination.
对数字地图出版中多源矢量数据利用理论进行了探讨和研究，提出了源数据描述、数据结构映射和数据重组的解决方案。
This research studied the transfer of information maintenance effected by the structure-mapping analogy and the similar elements in reading.
对数字地图出版中多源矢量数据利用理论进行了探讨和研究，提出了源数据描述、数据结构映射和数据重组的解决方案。
This research studied the transfer of information maintenance effected by the structure-mapping analogy and the similar elements in reading.
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