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Method and device for displaying points of interest in electronic map

An electronic map and display method technology, applied in geographic information database, structured data retrieval and other directions, can solve the problems of unsightly map surface, too dense POI display, affecting map viewing and browsing, etc., so as to improve the aesthetics and reduce the The process of whether POI is displayed, the effect of improving the efficiency of drawing and updating

Active Publication Date: 2019-10-18
NAVINFO
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AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a method and display device for displaying points of interest in an electronic map, which can solve the problem that the POIs in some areas in the current electronic map are displayed too densely, causing the map surface to be unsightly, and affecting the consultation and browsing of the map

Method used

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  • Method and device for displaying points of interest in electronic map
  • Method and device for displaying points of interest in electronic map
  • Method and device for displaying points of interest in electronic map

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Embodiment Construction

[0048] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.

[0049] Such as figure 1 As shown, the method for displaying points of interest in the electronic map of the present invention includes the following steps:

[0050] Step 11, obtaining a sub-display area in the display area of ​​the electronic map;

[0051] Step 12, obtaining pre-drawn POI information in the sub-display area under a preset scale, and prioritizing the pre-drawn POIs in the sub-display area;

[0052] Step 13, according to the order of priority from high to low, accumulate the area information of the pre-drawn POI label outsourcing frame;

[0053] Step 14, when the ratio of the area information of the marked outer frame of the first X pre-drawn POIs to the area information of the sub-display area is greater than a preset threshold, the fir...

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Abstract

The invention provides a display method and display device of points of interest in an electronic map. The display method comprises following steps: obtaining a sub display zone in the display zone of the electronic map; obtaining points of interest POI information pre-drawn in the sub display zone according to a preset scale; sorting the priorities of the POIs pre-drawn in the sub display zone; successively accumulating the area information of pre-drawn POI label outer packaging frames according to a priority decreasing sequence; when the ratio of the accumulated area information of the former X pre-drawn POI label outer packaging frames and the area information of the sub display region is more than a preset threshold value, drawing the former X-1 pre-drawn POIs in the sub display region, wherein the X is an integer. According to the scheme of the invention, the drawing and updating efficiency of the electronic map can be improved; and the drawing beauty degree of the electronic map is improved.

Description

technical field [0001] The invention relates to the technical field of electronic map processing, in particular to a method and display device for displaying points of interest in an electronic map. Background technique [0002] At present, in the process of drawing electronic maps, only POIs are classified according to the importance level of points of interest, and whether each type of POI is displayed on the electronic map surface at a certain scale is controlled, as well as the avoidance rules between POIs , It will cause the POI display in some areas to be too dense, which will overload the information on the electronic map surface, have too many characters and symbols, and the display will not be beautiful, which will affect the browsing of the map and cause problems such as inconvenient map consultation. Contents of the invention [0003] The purpose of the present invention is to provide a method and display device for displaying points of interest in an electronic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F16/29
Inventor 范素娟刘忠志
Owner NAVINFO
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