1. Mandatory data: Terrain or Surface raster.
Optional data: Buildings, vegetation, clutter classes.
2. Specific names:
- The Digital terrain model must be named elevation.tif
- The Building height grid must be named building_height.tif
- The land use (or clutter) grid must be named clutter_classes.tif
- The clutter heights (typically vegetation height) grid must be named clutter_height.tif
2. Raster format: GeoTIFF
3. Projection:
- Projected coordinate system;
- The same projection for all rasters.
4. NoData attribute: -9999