Method, device and navigator for displaying real picture of direction board
A direction board and display direction technology, applied in the field of navigation, can solve problems such as wrong path guidance, and achieve the effect of improving performance and user experience.
Active Publication Date: 2015-12-09
NAVINFO
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Problems solved by technology
[0005] However, in the process of displaying pictures in bitmap formats such as BMP and JPG, the pictures will not be automatically scaled, so for more complex intersections, it may appear that wrong path guidance is provided to users of navigation devices
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[0042] In this embodiment, the current position information of the vehicle and the navigation path of the vehicle are first obtained; then according to the current position information of the vehicle and the navigation path of the vehicle, the target position in the direction of vehicle travel is obtained; then when the vehicle travels to the distance from the target position When the initial position of the first predetermined distance, adopt the initial display scale to display the real picture of the direction signboard at the target position, the real picture of the direction signboard is a vector graphics file; then, in the process of vehicle driving to the target position, adjust the real picture of the direction signboard The display ratio can form a display effect from far to near, which improves user experience.
[0043] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present i...
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The invention provides a method and a device for displaying a realistic picture of a directional signboard, as well as a navigator. The method comprises the following steps of: acquiring the current position information and a navigation path of a vehicle; acquiring the target position of the vehicle in the direction of travel according to the current position information and the navigation path of the vehicle; when the vehicle travels to an initial position which has a first preset distance from the target position, displaying the realistic picture of the directional signboard at the target position by adopting an initial display ratio, wherein the realistic picture of the directional signboard is a vectograph file; and in the process that the vehicle travels toward the target position, adjusting the display ratio of the realistic picture of the directional signboard, wherein the realistic picture of the directional signboard can be subjected to progressive scaling in the display process, so that a display effect from far to near can be formed, and the user experience can be improved.
Description
technical field [0001] The invention relates to the technical field of navigation, in particular to a method, a device and a navigator for displaying a real picture of a signboard (Signboard). Background technique [0002] GPS (Global Positioning System, short for Global Positioning System) is a radio navigation and positioning system that provides information such as three-dimensional position and three-dimensional speed to all parts of the world around the clock. GPS navigation map is a set of electronic maps used for navigation on GPS devices, mainly used for route planning and realization of navigation functions. From the perspective of the composition form, the navigation map is generally composed of roads, backgrounds, annotations and POIs (points of interest). From the perspective of functional performance, the navigation electronic map needs to have the functions of positioning display, indexing, path calculation, and guidance. [0003] For the situation where the ...
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IPC IPC(8): G01C21/26
Inventor 张湘泉张石
Owner NAVINFO