Class #14
10 Abril 2019, 14:30 • Maria da Graça Corte-Real Mira da Silva Abrantes
The Raster data structure and Digital Terrain Modelling
- The Raster data structure
- Basic concepts: grid, cells, spatial resolution
- Raster vs. vector data structure
- Raster to vector and vector to raster data conversion
- Digital Terrain Modelling
- Main elements of the terrain surface
- Contour lines
- Digital Elevation Model (DEM) and Triangulated Irregular Network (TIN)
- Derived data: slope, aspect, hillshade, visibility, profiles, ...