Data Mappings: Polygonal Terrain Data

• Used to create CTDB TIN and microterrain

  • Microterrain only created where elevation grid is valid, otherwise TIN is used.

• Stored as <Polygon> objects.

  • Required Attribution in <Property Value> objects
    • Trafficability
      • EAC_TERRAIN_TRAFFICABILITY_COARSE (SIMNET) or
      • EAC_TERRAIN_TRAFFICABILITY_MEDIUM (CCTT)
    • EAC_SOIL_TYPE
    • EAC_SOIL_WETNESS
    • EAC_SURFACE_MATERIAL_TYPE
  • Attribution used to create entries in CTDB Polygon Attribute Table

• Can also be used to create CTDB gridded elevation data.

• STF Structure:

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