Abstract
This study takes the construction of the geospatial framework of the digital city as an example, and focuses on the application of the construction of a three-dimensional geographic information system in the optimization of building structures. We use the sketch master 3D modelling module to achieve 3D modelling of buildings, and use its interface with ArcGIS software to implant it in the 3D information geographic system to build a large-scale 3D digital application module for urban buildings. The system realizes 3D browsing and application.
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