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Figure 1: A building modelled in multiple LODs.The LODlabels are according to the categorisation of CityGML 2.0, andthey denote both the granularity of the geometry and semantics.Besides small and illustrative models such as this one, buildingdatasets containing multiple LODs are virtually non-existent.
Figure 2: Life cycle of a 3D city model: different production workflows of 3D city models from the perspective of the level of detail.
Figure 3: Modular workflow of the engine RANDOM3DCITY.
Figure 4: Composite rendering of a few exemplary datasets generated by RANDOMCityGML in four LODs
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