The boundary of earthwork excavation and the Triangle network can be reconstructed.
将其用于土方开挖边线处理，在此基础上重新构网。
From the data collection, to the triangle network topology construction, and the formation of grid unit, finally obtained the coal geology, accurate elevation revealed.
从数据的采集，到三角网的构建，以及拓扑结构的形成，最后得到网格单元，准确的把煤炭地质高程显现出来。
The data structures of DEM have five kinds of structure, including dispersed point, regular network, triangle irregular network, counter and mixing structure.
DEM数据结构有离散点结构、规则格网结构、不规则三角网结构、等高线结构和混合结构五种。
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