What guidelines apply to the 3D models' alignment to the base imagery in Google Earth?

  • Models must be correctly aligned to the underlying imagery published in Google Earth.
  • Models must have their height set as relative to the underlying DEM, not absolute; 2.5D and .shp data must have a 3 meter extrusion applied to account for variances in published terrain.
  • Models should never float above the terrain when loaded into Google Earth, unless provided with the corresponding DEM they were cut to match.
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