Research On Visualization Expression Optimization Of 3D Data Model Of Urban Space

Cities are covering more and more detailed information and carrying more and more data as they grow quickly.To this purpose,theories on the building of urban information technology,including smart cities,digital twins,and meta-universes,have been steadily advanced and put into reality.It is necessary to have a collection of high-quality rendering digital bases that can support a significant quantity of data in order to develop these system platforms.An critical issue that has to be resolved is how to effectively handle and store a vast volume of heterogeneous 3D model data,analyze and show it,and offer the foundation support for applications in many sectors.By building an assessment system based on the features of multi-source data in urban space,this work achieves the expression optimization of a three-dimensional data model in urban space and tries to strike a balance between the effect of enormous data loading and that of data presentation.In order to analyze and test the approaches for obtaining the visualization optimization expression of 3D urban space model data,it is first necessary to analyze the characteristics and structure of 3D data.Based on this analysis,the common characteristics of 3D models in data representation are then sorted out,and the parameter indicators that affect the visual expression are then examined and evaluated.In order to confirm the viability of the optimization expression,the visualization prototype system of the urban 3D data model is developed,tested,and assessed.Finally,it is stated that the efficiency and impact of 3D data visualization in urban space may be successfully improved by optimization based on data pretreatment,data organization and scheduling,and data spatial visualization.The following are this paper’s primary contents:(1)3D model data feature analysis;Study the organization and management of three-dimensional spatial data,analyze the characteristics of three-dimensional spatial data,study the construction method of three-dimensional urban scene,and on this basis,analyze and summarize the parameters that affect the visualization effect.(2)Creation of 3D model data assessment system;To further improve the visualization impact of the three-dimensional urban model,an evaluation system was established.The key parameter indexes affecting the visualization effect were extracted,and the optimization research technique was built.The validity of the optimization research methodology was demonstrated by experimental study.(3)Create a prototype system for the visualization of urban spatial data.Based on the development of the Cesium system platform,three-dimensional terrain data,three-dimensional data on road networks,and three-dimensional data on urban buildings are integrated and expressed to validate research on the best way to express three-dimensional urban space data models on the same hardware.