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A lightweight front-end GIS 2D and 3D integrated display method

A lightweight, three-dimensional technology, applied in structured data retrieval, still image data browsing/visualization, instrumentation, etc.

Active Publication Date: 2022-07-22
NR ELECTRIC CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Purpose of the invention: In order to solve the existing WEB system GIS display problem and make full use of the respective advantages of 2D and 3D GIS, the present invention provides a light-weight front-end GIS 2D and 3D integrated display method, which is responsible for the overall situation according to the 2D map and 3D map Responsible for local ideas, designing a synchronous switching display method combining 2D and 3D maps

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  • A lightweight front-end GIS 2D and 3D integrated display method

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Embodiment Construction

[0020] In order to further illustrate the technical means adopted by the present invention and the obtained effects, the present invention will be further described below with reference to the accompanying drawings.

[0021] like figure 1 As shown in the figure, a method for a lightweight front-end GIS 2D and 3D integrated display method includes the following steps:

[0022] Step 1: According to the needs of business display, establish a unified business display data source for business display objects, and the business display data includes database tables and model files;

[0023] Step 2: Publish the satellite image map through the WEB map server, and publish the terrain data in .terrian format through the WEB container;

[0024] Step 3: The web server provides a unified REST (Representational State Transfer) interface, and the web front end obtains business presentation data in JSON format through the REST interface, and the data returned by the REST interface includes bo...

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Abstract

The invention discloses a method for displaying two-dimensional and three-dimensional GIS on a WEB front-end. A unified two-dimensional data source and an image map are used. The WEB front-end obtains business display data in JSON format through a REST interface, and the two-dimensional map and the three-dimensional map are respectively displayed on the WEB front-end page. Map creation, image layer loading, 3D terrain loading, 2D object model and 3D object model creation of business data, and business layer loading, and through the current visible area of ​​the 2D map and 3D map when switching. The latitude and longitude range and the latitude and longitude position information of the map center are synchronized to support automatic and manual switching between the two-dimensional map and the three-dimensional map. The invention solves the problems of insufficient detail performance of the two-dimensional GIS and high performance requirements of the three-dimensional GIS when the existing two-dimensional GIS and three-dimensional GIS are independently applied to systems such as GIS business information display and the like. The advantages of data display can realize the integrated display effect of GIS 2D and 3D.

Description

technical field [0001] The invention relates to a lightweight front-end GIS 2D and 3D integrated display method, which belongs to the GIS information display technology of the WEB system, and is widely used in the fields of power transmission and transformation intelligent operation and maintenance, distribution network panoramic situation, power grid scheduling automation and the like. Background technique [0002] At present, in the process of practical application in various fields, 2D GIS and 3D GIS displayed in many cases are used independently. In comparison, two-dimensional GIS has the characteristics of better performance, low resource consumption, and is convenient for large-scale display, but it is weak in expressing specific models and details; while three-dimensional GIS has better model and detail expressiveness. However, when the display area is large and there are many models to be rendered, the resource consumption is relatively large and the performance is p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F16/54G06F16/29G06T17/05
CPCG06T17/05G06F16/29G06F16/54
Inventor 王黎黎牛锐张高峰顾全
Owner NR ELECTRIC CO LTD