Abstract
Digital twin technology based on building a virtual digital city similar to a real one enables the simulation of urban phenomena or the design of a city. A geospatial platform is an essential supporting component of digital twin cities. In this study, we propose a planetary-scale geospatial open platform that can be used easily in the most widely used game engine environment. The proposed platform can visualize large-capacity geospatial data in real time because it organizes and manages various types of data based on quadtree tiles. The proposed rendering tile decision method provides constant geospatial data visualization according to the camera controls of the user. The platform implemented is based on Unity3D, and therefore, one can use it easily by importing the proposed asset library. The proposed geospatial platform is available on the Asset Store. We believe that the proposed platform can meet the needs of various three-dimensional (3-D) geospatial applications.
Highlights
IntroductionA geospatial platform is the first step toward understanding the real world as a digital world
A geospatial platform is the first step toward understanding the real world as a digital world.A digital twin is a digital model of a physical entity [1,2]
We present a geospatial platform prototype based on the universal game engine
Summary
A geospatial platform is the first step toward understanding the real world as a digital world. A digital twin is a digital model of a physical entity [1,2]. It virtually simulates and predicts simulation results by creating digital twins of objects [3]. Digital twins are attracting attention as a technology that can be used to address various industrial and social problems and that has applications in manufacturing. A three-dimensional (3-D) geospatial platform is an essential part of a digital twin city. It can digitally organize and visualize terrains, buildings, and other structures [4,5].
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