利用格网分块结构高效组织海量多波束水深数据，分别采用三种数学模型内插网格节点水深值，实现了不同网格尺度下的数据抽稀。
The proposed method organized bathymetric data utilizing grid block structure, interpolated depth at grid node adopting three mathematical models and thinned data with multi-scale grid.
文中就如何对规则格网数据所描述的区域通过二值化处理 ，运用八向邻域的有向判断策略 ，提出了一种获取描述区域矢量边界的算法。
This paper gives an algorithm of the acquisition of boundary vector of regions through a way of bi value processing and the directory judgement of the neighbouring domains in eight directions.
文中就如何对规则格网数据所描述的区域通过二值化处理 ，运用八向邻域的有向判断策略 ，提出了一种获取描述区域矢量边界的算法。
This paper gives an algorithm of the acquisition of boundary vector of regions through a way of bi value processing and the directory judgement of the neighbouring domains in eight directions.
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