Dynamic tile map making method based on retrieval conditions and tile map system

Abstract

The invention discloses a dynamic tile map making method based on retrieval conditions and a tile map system, and the method comprises the steps: s1, carrying out the service access of a pre-created image map information database, and transmitting map browsing parameters as the retrieval conditions; s2, retrieving from a database according to an input retrieval condition to obtain a target image data list; s3, analyzing the target image data list, and encoding an analysis result of the target image data list and the personalized browsing parameters; s4, acquiring a corresponding tile from the specific storage area according to a coding result, if acquisition succeeds, directly returning the acquired tile to the client, and otherwise, executing S5-S6; s5, according to the target image data list and the analysis result thereof, generating a corresponding tile; s6, writing the generated tile and a coding result of the corresponding analysis result into a specific storage area, and returning. In this way, a tile generation mechanism of returning after filling and a retrieval response mechanism of constructing a cache key value are adopted, so that the system performance is guaranteed.

Description

technical field [0001] The invention relates to the field of maps, in particular to a method for making a dynamic tile map and a tile map system based on retrieval conditions. Background technique [0002] The traditional raster tile map service (Web Map Tile Service, WMTS) production needs to first slice the raster data, organize the data in an orderly manner, and then perform tile map slice processing and map publishing. The traditional processing method cannot meet the user's personalized browsing needs, and the slicing of raster data and the storage of sliced ​​data will consume a lot of time and take up a lot of storage, which cannot meet the continuous increase of user data and the needs of setting personalized retrieval conditions. [0003] The so-called "user personalized browsing needs" means that in the daily browsing of raster tile map services, as the user's raster data continues to accumulate and increase, the user wants to search according to the user-defined s...

AI Technical Summary

Problems solved by technology

According to the traditional tile map production method, it is necessary to create N tile map services to meet the personalized browsing needs of users. This will not only bring management troubles to users, but also waste a lot of time and storage space. And after the data is updated, the corresponding service needs to be sliced ​​again, which cannot meet the daily needs of users

[0005] At present, there is a lack of an efficient grid dynamic tile map production method that meets the retrieval conditions and personalized browsing requirements under the premise of ensuring browsing efficiency

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