Management method for mass tile raster data file

A raster data and management method technology, applied in the direction of electrical digital data processing, special data processing applications, instruments, etc., can solve the problems of lack of data maintenance and mobile convenience, unfavorable effective use of disk space, unfavorable map data confidentiality, etc. , to achieve the effect of facilitating maintainability and movement, short response time, and high reliability

Inactive Publication Date: 2013-07-03
TERRA DIGITAL CREATING SCI & TECH (BEIJING) CO LTD
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0004] 1. Using the file management method provided by the operating system, the large number of files will generate a lot of fragmented space, which is not conducive to the effective use of disk space
[0005] 2. At present, the management of tile files can directly view the files, which is not conducive to the confidentiality of map data
[0006] 3. The number of tile files is huge, and the data maintenance and mobile convenience are also lacking

Method used

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  • Management method for mass tile raster data file
  • Management method for mass tile raster data file

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Embodiment Construction

[0022] The specific implementation manner of the present invention will be described in detail below in conjunction with the drawings and specific examples.

[0023] See attached figure 1 Schematic diagram of data exchange, data compilation and system deployment of the raster data tile file management system. This system mainly includes: original data 1, data compilation system 2, data file 3, file management engine 4, server 5, client 6 . Raw data 1 is converted into No-SQL data file 3 through data compilation system 2. Data file 3 is a specific binary data file, mainly including file index and data content. The file management system engine 4 can quickly locate the tile file through the file index. The server 5 calls the file management engine 4 in the background, and when the client 6 sends a request to the server, the file management engine 4 can respond in time.

[0024] See attached figure 2 It is a schematic flow diagram of the client of the present invention makin...

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Abstract

The invention discloses a management method for a mass tile raster data file. On the basis of the tile raster data file, the invention relates to a mass tile raster data file management method which supports high concurrency reading and is indexed on the basis of hierarchy. Disc space occupied by the tile raster data file is reduced; the maintainability and the movement of the tile raster data file can be favorably carried out; the tile file data storage structure is optimized; the management method has the advantages of higher reliability and shorter response time; and the data safety is guaranteed.

Description

technical field [0001] The invention relates to a method for managing massive tile raster data files, in particular to a file management method for massive tile raster data that supports high concurrent reading and is based on hierarchical indexes. Background technique [0002] With the emergence of massive tile map technology, the dragging, zooming and quick browsing of maps at different scales have been greatly improved. Tile map file management is essentially the process of taking the common map used by people as the main map background, storing it on the server side in a pre-generated method, and then sending the corresponding map tiles to the client according to different requests. Because the map requested by the client is pre-generated, it does not need to calculate and draw the user's request in real time like the traditional WebGIS, so the tile map technology can have the advantage of speed in the display of the map. How to generate map tiles and how to feed back r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/30
Inventor 张立刘俊伟李同高柴崎
Owner TERRA DIGITAL CREATING SCI & TECH (BEIJING) CO LTD
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