WebGIS (geographic information system) map optimization based gradation loading method for tens of thousands of cameras

A hierarchical loading, camera technology, applied in electrical digital data processing, special data processing applications, instruments, etc., can solve problems such as reduced user experience, system unavailability, browser page suspended animation, etc., to optimize loading and ensure response speed. , the effect of enhancing the experience

Inactive Publication Date: 2015-09-02
ANHUI SUN CREATE ELECTRONICS
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AI Technical Summary

Problems solved by technology

If the browser loads all the cameras at one time, it will cause the browser page to freeze and become

Method used

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  • WebGIS (geographic information system) map optimization based gradation loading method for tens of thousands of cameras
  • WebGIS (geographic information system) map optimization based gradation loading method for tens of thousands of cameras
  • WebGIS (geographic information system) map optimization based gradation loading method for tens of thousands of cameras

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Example Embodiment

[0020] A method for optimizing and hierarchically loading tens of thousands of cameras on a WebGIS map, comprising: (1) the WebGIS map obtains the boundary within the user-visible area displayed on a browser webpage, and loads spatial database data; (2) the WebGIS map is based on a hierarchical grid The loading strategy loads the cameras within the visible area of ​​the user; (3) When the user requests the page, the business script code is loaded, a loading request is issued, and the data is loaded asynchronously; (4) The spatial position of each camera is accurately displayed, and its latitude and longitude are accurate to the decimal point. The last 4 to 5 digits; (5) Compress the script files that need to be introduced, obfuscate the identifiers, and publish them online to the WebGIS system. The map space library is a database for storing camera, building and point information that needs to be loaded on the WebGIS system page. After the system loads the data, since there is...

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Abstract

The invention relates to a WebGIS (geographic information system) map optimization based gradation loading method for tens of thousands of cameras. The WebGIS map optimization based gradation loading method includes by a WebGIS map, acquiring a boundary within user-visible area coverage displayed by a browser webpage and loading space library data; loading the cameras in the user-visible area coverage according to a gradation grid loading strategy by the WebGIS map; loading business script codes while a user requires the webpage, sending a loading request and loading data asynchronously; displaying space positions of the cameras accurately, wherein longitudes and latitudes are be given to four to five decimal places; compressing a to-be-inputted scrip file, mixing identifiers and issuing the file to a WebGIS system online. The WebGIS map optimization based gradation loading method has the advantages that gradation loading is performed proportionally according to the gradation grid loading strategy, so that the response speed of a browser is further guaranteed, and non-response of the browser is avoided; through asynchronous loading, longitude and latitude precision, script file compression and identifier mixing, loading is further optimized and user experience is improved.

Description

technical field [0001] The invention relates to the technical field of geographic information systems, in particular to a method for optimizing and loading tens of thousands of cameras on a WebGIS map in stages. Background technique [0002] Geographic Information System (GIS) technology is a spatial information analysis technology that has developed rapidly in recent years. It plays a leading role in the field of resource and environmental applications. Its basic function is to convert tabular data into geographic graphics. Then browse, manipulate and analyze the displayed results. GIS has been progressing along with the development of computer technology. Driven by the development of computer technology and various new application requirements, as map business becomes more and more complex in application, user-defined business data is becoming more and more popular in GIS system. Many, GIS is developing in the direction of mass data management integration, efficient data ...

Claims

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Application Information

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IPC IPC(8): G06F17/30
Inventor 王汉林张跃范联伟周春寅余保华
Owner ANHUI SUN CREATE ELECTRONICS
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