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Building reconstruction from a single DEM

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Academic year: 2021

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Figure

Figure 1. Principle of the structural approach.
Figure 2. Extraction of 2D-supports: DEMs (left), interactive (cen- (cen-ter)and automatic extraction (right).
Figure 3. Library of 3D-blocks - the roof forms (3D and profile views) (top) and the variants of a gable roof (bottom)
Figure 4 illustrates this interaction. If the two blocks belong to different roof types (for example a mansard roof and a semi-elliptic roof on the top right) or if the two objects do not have compatible roof orientations (bottom right), they will not be ”
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