Introduction
The AIXM model allows to code both obstacles composed of a single block and obstacles composed of multiple blocks (parts). The decision to code an obstacle as a single part or with multiple parts is taken by the data originator. Specific guidance is provided in the TOD Manual.
For example, a building with an antenna on top may be coded as a single part obstacle. In this case, a unique VerticalStructurePart is necessary, as indicated in the mapping diagram below.
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