Map display method and device, related storage medium and client

Abstract

The invention discloses a map display method and device, a related storage medium and a client. The method comprises the following steps: determining at least one current-level tile corresponding to acurrent to-be-displayed map range; searching whether the current-level tile and a parent-level tile of at least one level of the current-level tile exist in a cache or not; when all current-level tiles do not exist in the cache and the parent-level tiles of the at least one level exist, requesting to obtain the current-level tiles which do not exist, and displaying the parent-level tiles of the at least one level or simultaneously displaying the parent-level tiles of the at least one level and the existing current-level tiles; and loading the obtained current-level tiles into the cache and displaying the current-level tiles until all the current-level tiles are loaded and displayed, and cancelling the display of the at least one parent-level tile. According to the method, the problem of flickering caused by no data display is avoided by applying the optimized multiplexing rule.

Description

technical field [0001] The present invention relates to the field of electronic maps, in particular to a map display method, device, related storage medium and client. Background technique [0002] With the development of computer, network, multimedia and aerospace technology, computer-based electronic equipment is widely used in the field of electronic maps. Maps are no longer limited to symbols and graphics expressed on paper (or similar media). Stored on magnetic media in digital form, or displayed on the screen through visual processing. [0003] At present, more and more tile pyramids are used in the field of electronic maps to organize map data. refer to figure 1 As shown, the tile pyramid is a multi-resolution hierarchical model of the pyramid structure. From the bottom layer to the top layer of the tile pyramid, the resolution becomes lower and lower, but the geographical range represented by each layer remains unchanged. Each level of the tile pyramid corresponds...

AI Technical Summary

Problems solved by technology

[0006] Although the existing technology has optimized the flickering problem of the map display to a certain extent, it cannot guarantee that all the tiles of the current level are ready to be completed at the same time because the tiles of the current level need to be processed by asynchronous requests, loading, and data triangulation.

Therefore, before all the tiles at the current level are ready at the same time, there will be a certain period of calculation process, and there will still be flickering from displaying content to displaying no content and then displaying new content.

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