Geography 360 Principles of Cartography. May 19, 2006. Outlines: Digital Elevation Model. How is DEM different from map display? DEM is data structure, not map What is DEM? Digital representation of elevation Data structure for representation stored in the computer Three commonly used DEM
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May 19, 2006
Refer back to SDTS spatial data concepts
Triangulated Irregular Network (TIN)
Source: Bolstad 2005