Three-dimensional GIS real-time cloud rendering display method, terminal, cloud server and storage medium

Abstract

The invention provides a three-dimensional GIS real-time cloud rendering display method, which comprises a terminal and a cloud server, and is characterized in that the terminal sends a three-dimensional GIS data visualization request to the cloud server; the cloud server responds to the visualization request of the three-dimensional GIS data, converts the three-dimensional GIS data into a visualized video stream in real time and sends the visualized video stream to the terminal through a transmission channel; and the terminal receives the visual video stream, and plays and / or browses the video stream. A rendering video compression and transmission service is added between a three-dimensional GIS platform and a user interaction terminal, the original rendering drawing of the three-dimensional GIS is directly drawn at the client, drawing is changed into drawing at the server side and a drawing result is transmitted to the client side in a real-time video streaming mode instead of an original mode that drawing of the three-dimensional GIS data is completed at the client side, so that the requirement of the system for the hardware capability of the client side is reduced, and the experience of a user in three-dimensional GIS application is improved.

Description

technical field [0001] The present invention relates to visualization technology of 3D geographic information system, technology related to video stream transmission and network rendering, in particular to a method for visual display and interaction of 3D geographic information system (3D GIS) through real-time cloud rendering technology. Background technique [0002] Geographic Information System (Geographic Information System or Geo-Information system, referred to as: GIS) is a system platform for geographic-related information management. It usually needs to process and display massive location-related data. It is widely used in national production and life and military applications. It has important application value. In the 3D geographic information system (referred to as: 3D GIS) and related applications, the main management is based on 3D data. 3D GIS is not only used in the field of smart cities, but also in the application of BIM (Build Information Model) in the fie...

AI Technical Summary

Problems solved by technology

The difference between the BS architecture and the CS architecture is that JavaScript has low operating efficiency and does not allow the establishment of physical caches. The performance is usually much lower than that of the CS architecture. However, the advantage of BS is that it does not need to install any plug-ins or local applications. Can operate the 3D GIS system to complete the application function

In order to improve the efficiency of 3D GIS data visualization, various research algorithms have been optimized in terms of LOD construction, cache construction technology, data simplification, and geometric compression. show problem

[0006] Regardless of the PC architecture, CS architecture or BS architecture, there are two problems in the 3D GIS system: (1) The visualization calculation of the final 3D data is completed on the user terminal (computer, mobile device or other terminal), using the terminal The three-dimensional computing ability of the computer has completed the visualization of the data, and there are certain requirements for the memory, CPU speed and graphics card capability of the terminal computer; (2) the three-dimensional data needs to be transmitted to the terminal for display processing, and the data transmission process brings data Security risks

However, in the field of 3D GIS, reports on cloud rendering technology are still rare

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