GIS数据在城市级数字孪生建设中的应用研究

Application Research on GIS Data in City-Level Digital Twin Construction

城市级三维建模普遍存在周期长、成本高,对已有地理信息数据利用率低的问题。利用已有的地理信息多元数据,在CityEngine中运用CGA规则建模快速搭建城市级三维场景。通过数据处理、规则建立,实现了基于GIS属性信息建立三维模型,并对重点研究区域进行精细模型的建立,实现粗略模型和精细模型的场景结合。通过实例研究表明,基于CityEngine的三维建模可以充分利用地理信息数据快速搭建三维模型,解决了城市级建模周期长、成本高的问题。

City-level 3D model has the problems of long cycle,high cost and low utilization for existing geographic information data.This paper makes use of the existing geographic information multivariate data and CGA rules in CityEngine to build city-level 3D scene quickly.Through data processing and rule establishment,the 3D model is established based on GIS attribute information,the rough model and detailed model is realized in the same scene.Through the case study,3D model build based on CityEngine can optimize ge-ographic information data to build 3D scene quickly,and the problem of long cycle and high cost of city-level modeling is solved.