Design of a railway visualization system based on cesium

With the continuous development of railway informatization in China, the integration and application of GIS and railway oblique models on the web have gradually deepened^[2]. The railway oblique photogrammetric model obtained through automated modeling is essentially a continuous TIN network. Apart from roaming and browsing, it is impossible to perform actual operations on the model. However, most applications of railway informatization require the ability to select individual objects, assign and query attributes, and other basic GIS functions. Therefore, individualization is an important issue that needs to be addressed in the application of oblique photogrammetric models in GIS. Based on the 3D open-source engine Cesium framework, combined with the front-end Vue framework, server-side NodeJS framework, and MySQL database, this paper constructs a railway model visualization system capable of data management. This system can individualize various types of railway objects in a 3D spatial scene, enabling the management of individual objects. Additionally, it develops corresponding spatial analysis functions to facilitate railway inspection personnel in examining and analyzing railway data.