Two-dimensional and three-dimensional integrated GIS system based on live-action three-dimensional

Abstract

The invention discloses a two-dimensional and three-dimensional integrated GIS (Geographic Information System) based on live-action three-dimensional. The system comprises a data layer, a service layer and an application layer, the data layer comprises a data acquisition module, a data processing module and a data storage module; the data acquisition module comprises an unmanned aerial vehicle inclined image, a digital line map, a three-dimensional model, topographic data, high-resolution data, attribute data and business data; the service layer comprises a map rendering module and a map service publishing module; and the application layer comprises a two-dimensional and three-dimensional space measurement module, a two-dimensional and three-dimensional integrated display module, a POI search module, an intervisibility analysis module, a dynamic visual range analysis module, a two-dimensional and three-dimensional map plotting module, a two-dimensional and three-dimensional path planning module, a two-dimensional and three-dimensional trajectory data analysis module and a two-dimensional and three-dimensional model real-time monitoring module. According to the invention, the spatial analysis capability of the two-dimensional geographic information system and the display capability of the three-dimensional geographic information system are fused together, and the two-dimensionaland three-dimensional integrated linkage of the map data of the GIS framework is realized.

Description

Technical field [0001] The invention belongs to the technical field of information display and processing, and specifically relates to a two- and three-dimensional integrated GIS system based on real scene three-dimensional. Background technique [0002] With its unique intuitive visualization effects, 3D GIS has rapidly expanded to the fields of urban construction, military simulation, public security, fire protection, and smart transportation. However, because two-dimensional GIS is more abstract, macroscopic, comprehensive, easy to spatial analysis, and has been widely used in all walks of life in society, many units have built relatively complete two-dimensional geographic information and information management systems, so although three-dimensional GIS has two-dimensional GIS has incomparable advantages, but it cannot completely replace two-dimensional GIS for a long time. How to maximize the use of two-dimensional resources, integrate two-dimensional GIS and three-dimensio...

AI Technical Summary

Problems solved by technology

[0003] At present, there are some commercial GIS platforms on the market that can provide 3D engines. Representative manufacturers include Skyline, Esri, HyperMap, etc. Users can carry out secondary development based on these 3D engines, but there are mainly the following shortcomings: First, commercial GIS software is relatively expensive , the system platform is relatively large, which is not conducive to rapid deployment and rapid development; secondly, due to its underlying architecture design, commercial GIS software is not agile in updating iterations, resulting in a long development cycle; commercial GIS software is relatively strong in encapsulation. In terms of the expansion of the expansion function module, it is not easy to carry out customized expansion

In addition, some commercial 3D GIS products still use browser plug-ins to load and display 3D scenes, which cannot make good use of webGL technology, making it inconvenient for users to use

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