A 3D Tile Generation Method Based on Adaptive Meshing and Octree Segmentation

As urban informatization advances, traditional geographic information systems (GIS) evolve into the three-dimensional realm. With its realism and high-precision measurement capabilities, three-dimensional geographic information has widespread application in land use management, digital city development, and the construction of smart cities. Addressing the challenges posed by large-scale, unevenly distributed 3D scene data, this study introduces an innovative 3D Tile construction technique based on adaptive meshing and octree structures. This approach enhances the geometric fidelity and detailed data representation and significantly accelerates data loading speeds. Managing massive, heterogeneous 3D model datasets efficiently supports sustainable development and effective management in homeland spatial planning, digital city building, and smart city initiatives.