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Annotating method and device for surface element annotation

An element and annotation technology, applied in the field of labeling methods and devices for surface element annotation, can solve problems such as heavy workload, reduce labor costs, and avoid labeling errors.

Active Publication Date: 2022-02-11
NAVINFO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The technical problem to be solved by the present invention is that the workload of manually annotating and marking surface elements at different scales is large, thereby providing a method and device for annotating surface elements

Method used

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  • Annotating method and device for surface element annotation
  • Annotating method and device for surface element annotation
  • Annotating method and device for surface element annotation

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Embodiment Construction

[0042] 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.

[0043] In the description of the present invention, it should be noted that the technical features involved in the different embodiments of the present invention described below can be combined as long as they do not constitute conflicts with each other.

[0044] This embodiment provides a method for annotating area elements, which can be used to annotate the same area elements on different scales on the navigation electronic map, such as image 3 shown, including the following steps:

[0045] Step S301, on t...

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Abstract

The invention relates to the technical field of digital drawing, in particular to a labeling method and device for surface element labeling. Wherein, the method includes: on the electronic map of the Nth scale, determine the position of the annotation point marked on the electronic map of the N-1th scale, wherein, the position of the annotation point is on the main skeleton of the element of the narrow and long surface On the line, the Nth scale is the display scale of the next layer of the N‑1th scale, and the Nth scale is larger than the N‑1th scale, and N is an integer greater than or equal to 2; starting from the position of the annotation point, it moves toward the main skeleton line Annotation points are labeled along the main skeleton line at both ends of . It solves the technical problem of manual annotation and labeling of surface elements at different scales, and reduces labor costs. In addition, the position of the determined annotation point in this embodiment is located on the main skeleton line, which avoids the problem of labeling errors caused by marking the annotation outside the surface element.

Description

technical field [0001] The invention relates to the technical field of digital drawing, in particular to a labeling method and device for surface element labeling. Background technique [0002] In the navigation electronic map, in addition to the basic expression of geometric shape, natural language as the annotation of the map is also an important part of the expression of map information. Map annotations generally include but are not limited to text, symbols, numbers, etc. used to label elements represented by geometric shapes. Due to the existence of annotations, the map can completely convey geographic information. Based on the labeling objects, map annotations are divided into point feature annotations, line feature annotations, and area feature annotations. Among them, the annotation of general area elements is mainly for buildings, green spaces, administrative regions, water systems, etc., and is used for the expression of area elements of rich navigation electronic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F16/29
CPCG06F16/29
Inventor 石峰王健郭兆钟
Owner NAVINFO
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