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Ontology-based Map Symbol Expression Method and System

A technology of map symbols and expression methods, which is applied in the direction of extracting basic elements, geographic information databases, filling planes with attributes, etc., can solve the problem that symbol data cannot be shared, and achieve the effect of improving accuracy

Active Publication Date: 2021-10-15
HUBEI UNIV
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  • Application Information

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Problems solved by technology

However, due to the large differences in the map symbol composition methods of different platform systems, there are many different deconstruction and drawing methods for the same symbol, and finally the symbol data cannot be shared.

Method used

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  • Ontology-based Map Symbol Expression Method and System
  • Ontology-based Map Symbol Expression Method and System
  • Ontology-based Map Symbol Expression Method and System

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0048] like Figure 1-6 as shown,

[0049] (1) Establish map symbol semantic model

[0050] Map symbols and Chinese characters have a similar structure, and the semantic model of map symbols is established with reference to Chinese characters to construct map symbols and provide a basis for the ontology expression of map symbols. The semantic model of map symbols mainly includes two parts: the constituent units and combination rules of map symbols and the structural information of map symbols, such as figure 2 shown.

[0051] ① Composition units and combination rules of map symbols

[0052] The constituent units and combination rules of map symbols mainly refer to the Chinese glyph system and primitive method. The Chinese glyph system includes composition units and combination rules: the initial symbol of the Chinese glyph system is a stroke, and the combination rule is that strokes are combined into individual characters or parts, and parts are combined into characters. ...

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Abstract

An ontology-based map symbol expression method, which includes the following steps: S1, referring to the primitive method, Chinese character graph system and Chinese character structure, constructing a map symbol semantic model, defining map symbol constituent units and combination rules, and the internal structure of map symbols ; S2. Summarize the attributes of the map symbol ontology, construct the attribute structure of the map symbol ontology, and clarify the parameter information of the constituent units; S3. According to the characteristics of different types of map symbols, describe them based on OWL language, and realize the formal expression of map symbols. The invention also provides an ontology-based map symbol expression system.

Description

technical field [0001] The invention relates to the technical field of map drawing, in particular to an ontology-based map symbol expression method and system. Background technique [0002] As the graphical language of maps, map symbols are the basic means to visually express the current situation and development of geographical environment. With the development of geographic information sharing technology and digital map drawing technology, the problem of map symbol sharing has gradually become prominent. However, due to the large differences in the map symbol composition methods of different platform systems, there are many different deconstruction and drawing methods for the same symbol, and finally the symbol data cannot be shared. [0003] An ontology is a specification of a certain conceptual system. The essence of an ontology is a conceptual model, which expresses concepts and the relationship between concepts. The purpose is to provide a clear expression of related...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F16/29G06T11/20G06T11/40
CPCG06T11/20G06T11/40G06F16/29
Inventor 王红姚尧姚君兰胡斌斌段雨婕
Owner HUBEI UNIV