Abstract: Following a discussion of the 3D GIS data model in current use,anirregular triangle prism net (TPN) data model is proposed,together with an analysis of its data structure and spatial data operation.

 
  • 文摘:文中對現有的三維GIS數據模型進(jìn)行了討論,然后結合地學(xué)結構的特點(diǎn),提出了一種基于體素的不規則三棱柱網(wǎng)絡(luò )(TPN)數據模型,并分析了其數據結構和空間數據操作。
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