Electronic map information labeling method and device and terminal

An electronic map and map technology, applied in geographic information databases, electronic digital data processing, special data processing applications, etc., can solve problems such as excessive differences in text rotation angles, low map legibility, and affect the timeliness of labeling, etc., to achieve Reduce the data processing process, improve the efficiency of labeling, and reduce the effect of data processing

Active Publication Date: 2018-06-26
NAVINFO
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0004] (1) Since the data of the tag information needs to be thinned before marking, the calculation method of the thinning processing is usually complex and the amount of calculation is large, which affects the timeliness of marking
[0005] (2) The difference in the rotation angle of each tex...

Method used

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  • Electronic map information labeling method and device and terminal
  • Electronic map information labeling method and device and terminal
  • Electronic map information labeling method and device and terminal

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Embodiment Construction

[0038] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0039]In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, o...

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Abstract

The invention discloses an electronic map information labelling method and device and a terminal. The method comprises the following steps of: obtaining a labelling information set for representing semantic information of a to-be-labelled map element; determining a labelling position set corresponding to the labelling information set according to a contour of the to-be-labelled map element; determining a labelling form set of the labelling information set according to the labelling position set; and labelling the labelling information set according to the determined labelling form set. According to the method, the labelling form set is determined according to the labelling position set, so that labelling information of the to-be-labelled map element is taken as a whole to determine labelling forms, and the labelling information which is taken as a whole has a certain system consistency.

Description

technical field [0001] The invention relates to the field of electronic map data processing, in particular to an electronic map information labeling method, device and terminal. Background technique [0002] Electronic maps have increasingly become an indispensable part of people's social life, and electronic maps with high timeliness and rich information can provide great convenience for their travel. In order to enrich the information of the electronic map, the name of each map element (such as expressway, highway, etc.) can usually be supplemented and displayed in the electronic map, for example, "Beijing-Shenyang Expressway" and so on. [0003] In small-scale map scenarios, due to the high curvature complexity of linear features such as highways and highways, it is difficult to calculate the rotation angle of text marked along the line, and the legibility is poor. In the prior art, please refer to figure 1 , when labeling "Beijing", "Shen", "High" and "Speed" on the Be...

Claims

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Application Information

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IPC IPC(8): G06F17/30
CPCG06F16/29
Inventor 刘忠志赵忠斌曹会朋于红霞
Owner NAVINFO
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