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Method and apparatus for rendering map, and mobile terminal

A mobile terminal and map technology, applied in the field of map rendering, can solve the problems of large system resources and slow speed, and achieve the effect of reducing system resources and improving speed

Inactive Publication Date: 2014-07-09
AUTONAVI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] Embodiments of the present invention provide a map rendering method and its device, and a mobile terminal, so as to solve the problems in the prior art that displaying a map on the screen of a mobile terminal is relatively slow and occupies a large amount of system resources

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  • Method and apparatus for rendering map, and mobile terminal
  • Method and apparatus for rendering map, and mobile terminal
  • Method and apparatus for rendering map, and mobile terminal

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Embodiment Construction

[0043] Aiming at the technical problems existing in the prior art, the embodiment of the present invention provides a map rendering method and its device, and a mobile terminal, to solve the problem that the pure vector rendering in the existing map rendering method takes up a large amount of system memory and is inefficient. The lower problem, and the way of pure raster rendering needs to pre-store a large number of raster images on the server side, which leads to the problem of large data volume. The method for rendering a map in the present invention specifically includes: first, obtaining the block number of the map block contained in the part of the electronic map that will be displayed on the screen of the mobile terminal; and then obtaining the map block corresponding to the block number; Obtained, then display the map tile on the screen of the mobile terminal; if it cannot be obtained, obtain the vector data corresponding to the tile number, and render it into a map til...

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Abstract

The invention discloses a method and apparatus for rendering a map and a mobile terminal, and aims to provide a rendering way by combining the advantages of conventional raster rendering and vector rendering so that low system resources are occupied by the mobile terminal to quickly and efficiently display a map on a screen of the mobile terminal. The method includes obtaining a segment number, contained in a displayed portion on the screen of the mobile terminal, of a map segment in an electronic map; obtaining the map segment corresponding to the segment number from the mobile terminal; If the map segment is obtained, then drawing the map segment on the screen of the mobile terminal; and otherwise, obtaining vector data corresponding to the segment number, rendering a map segment according to the vector data, and drawing the rendered map segment on the screen of the mobile terminal.

Description

technical field [0001] The present invention relates to the field of map rendering, in particular to a map rendering method and device thereof, and a mobile terminal. Background technique [0002] With the rise of smart phones based on platforms such as Android and IOS, LBS (Location Based Service, location-based service) services have shown explosive growth. At present, how to quickly, efficiently and gracefully The display map of each LBS terminal software company has become an urgent problem to be solved. [0003] At present, the rendering of maps on mobile terminals mainly includes the following two methods: [0004] Method 1. Raster rendering. The grid rendering method adopts the pre-rendering method, that is, the map tiles corresponding to the tile numbers contained in the electronic map (that is, the grid image) are stored on the server in advance; the mobile terminal determines that the electronic map needs to be displayed on the mobile terminal screen The block n...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09B29/00
Inventor 陈涛曾琨
Owner AUTONAVI
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