Map vehicle icon drawing method and system and navigation terminal

Abstract

The invention discloses a map vehicle icon drawing method and system and a navigation terminal. The method comprises the steps that a vehicle icon is drawn by converting longitude and latitude information of a first map into first screen coordinate information on the basis of screen coordinate information corresponding to the first screen coordinate information at the position of the vehicle; then, after map conversion is performed, longitude and latitude information of the second map and the longitude and latitude information of the first map are matched and worked out, second screen coordinate information corresponding to the longitudinal and latitude information of the second map is obtained, the screen coordinate position corresponding to the offset vehicle position is worked out through the offset amount and the screen coordinate position of the vehicle icon is updated, so that during map conversion, the vehicle icon does not need to be drawn again, the vehicle icon of the map which is not converted just needs to be subjected to the translation operation, and then the vehicle icon of the converted map is obtained; the map switching time is greatly shortened, and user experience is improved.

Description

technical field [0001] The invention relates to the technical field of map information processing, in particular to a method for drawing a map vehicle icon, a system for applying the method, and a navigation terminal. Background technique [0002] There are many kinds of maps in the current world, such as Baidu map, Gaode map, Google map, Tencent map and local map. Due to the different personal preferences of users, there will often be a relative preference for a certain map, and a preference for a certain map. Products that use this map. Therefore, the number of map types that a traffic system software can support is related to the market share of the product to a certain extent. Another problem often caused by the switching function between various maps is that the switching time is long and the response time requires the user to have enough patience to wait for the redrawing of the corresponding vehicles and other coverings on the map, which greatly reduces the user expe...

AI Technical Summary

Problems solved by technology

For ui redrawing, running on a PC is a performance and memory-intensive task, while redrawing a large number of vehicles requires a lot of drawing calculations on the corresponding devices, especially in mobile with limited memory The response time required for redrawing on the terminal is longer and requires more processing power on the terminal

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