A 2D and 3D integrated gis system based on real scene 3D

Abstract

The invention discloses a 2D and 3D integrated GIS system based on real scene 3D, including a data layer, a service layer and an application layer, the data layer includes a data acquisition module, a data processing module and a data storage module, and the data acquisition module includes a drone tilt Images, digital line drawings, 3D models, terrain data, high score data, attribute data, and business data. The service layer includes map rendering modules and map service publishing modules. The application layer includes 2D and 3D spatial measurement modules, and 2D and 3D integrated display module, POI search module, visual analysis module, dynamic visual domain analysis module, 2D and 3D map drawing module, 2D and 3D path planning module, 2D and 3D trajectory data analysis module and 2D and 3D model real-time monitoring module. The invention integrates the spatial analysis capability of the two-dimensional geographic information system and the display capability of the three-dimensional geographic information system, and realizes the integrated linkage of two and three dimensions of map data in the GIS framework.

Description

technical field [0001] The invention belongs to the technical field of information display and processing, and in particular relates to a two-dimensional and three-dimensional integrated GIS system based on three-dimensional real scene. Background technique [0002] 3D GIS has rapidly expanded to urban construction, military simulation, public security firefighting, smart transportation and other fields with its unique intuitive visualization effect. However, because 2D GIS is more abstract, macroscopic, comprehensive, and easy to analyze spatially, and it has been widely used in all walks of life, many units have built relatively complete 2D geographic information and information management systems. GIS has incomparable advantages, but it cannot completely replace two-dimensional GIS for a long time. How to make maximum use of two-dimensional resources, integrate and realize linkage between two-dimensional GIS and three-dimensional GIS, so as to realize the complementary a...

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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