Tile map using method adapting to low network bandwidth environment

Abstract

The invention discloses a tile map using method adapting to a low network bandwidth environment, and belongs to the technical field of online tile map using. The tile map using method adapting to a low network bandwidth environment Comprises: caching the processed map tiles of each level according to a tile organization rule; converting the character string into a base 64 coded character string; and compressing and processing the character string by using a character string compression algorithm, calculating a tile row and column number according to a map range when a client calls a map tile,requesting compressed data of the tile at a corresponding position, decompressing the compressed data into a base64 character string by using a character string decompression algorithm after receivingthe data, and converting the base64 character string into a picture to obtain a corresponding tile. According to the tile map using method adapting to the low network bandwidth environment, the problem of slow loading of an online map used in the low network bandwidth environment can be solved, the requirement of a mobile terminal and a PC terminal for rapid loading and displaying of the online map in remote areas and special network working condition environments is met, and the tile map using method has good application and popularization value.

Description

technical field [0001] The invention relates to the technical field of online tile map usage, and specifically provides a tile map usage method adapted to a low network bandwidth environment. Background technique [0002] The tile map is formed by cutting each zoom level of the map into tiles (usually 256*256 pixels in png or jpg format), and splicing them in rows and columns in a certain organizational form. The tile map effectively solves the rendering pressure of real-time display of complex maps with a large amount of data, and provides good support for the application of image maps and complex vector maps on browsers and mobile phones. At present, map tile technology has been adopted by major Internet map manufacturers and business systems are widely used. [0003] Although the tiled map technology effectively reduces the amount of single-transmission data in the process of map display, in special application scenarios such as poor network environment and limited trans...

AI Technical Summary

Problems solved by technology

[0006] The technical task of the present invention is to address the above existing problems, to provide a method that can solve the problem of slow loading of online maps in low network bandwidth environments, and meet the needs of remote areas and special network conditions to quickly load online maps on mobile terminals and PC terminals. How to use the tile map to adapt to the low network bandwidth environment according to the displayed requirements

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