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Method for mapping knowledge construction and formalized expression based on map symbols

A knowledge and map technology, applied in knowledge expression, structured data retrieval, geographic information database, etc., can solve the problems that cartographic knowledge cannot be reused, graphics cannot be automatically processed, etc., and achieve the effect of easy expansion and sharing

Inactive Publication Date: 2014-06-18
WUHAN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention mainly solves the technical problems existing in the prior art that the symbolized graphics cannot automatically process the relationship between elements, and the cartographic knowledge cannot be reused; it provides a map schema-based cartographic knowledge construction and form method of expression

Method used

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  • Method for mapping knowledge construction and formalized expression based on map symbols
  • Method for mapping knowledge construction and formalized expression based on map symbols
  • Method for mapping knowledge construction and formalized expression based on map symbols

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Embodiment Construction

[0032] In order to facilitate those of ordinary skill in the art to understand and implement the present invention, the present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the implementation examples described here are only for illustration and explanation of the present invention, and are not intended to limit this invention.

[0033] please see figure 1 , the technical solution adopted in the present invention is: a method for constructing and formally expressing cartographic knowledge based on map schema, comprising the following steps:

[0034] Step 1: According to the role in map drawing, classify the basic scale map schema, including but not limited to map drawing explanatory text and graphic elements, to form the classified cartographic knowledge; the classified cartographic knowledge is divided into four categories :

[0035] 1) Basic symbolization class: mapping knowl...

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Abstract

The invention discloses a method for mapping knowledge construction and formalized expression based on map symbols. The method mainly comprises the following steps that map mapping knowledge (in text form) in basic scale map symbols is classified, keyword abstracting is conducted to the classified mapping knowledge, the formalized expression of different categories of mapping knowledge is designed, and a database of the mapping knowledge is built. The research of the mapping knowledge and the formalized expression aims to provide service for the automation of the map mapping. When the mapping knowledge is used in the map mapping process, the mapping knowledge is searched and queried firstly, the searched mapping knowledge is parsed secondly, and finally the results acquired in the above steps are used for guiding and regulating the map mapping process. The method for the mapping knowledge construction and the formalized expression based on the map symbols is easy to conduct, easy in the extending of a mapping knowledge base, and capable of making a map meeting the national basic scale topographic map.

Description

technical field [0001] The invention belongs to the technical field of map drawing, and relates to a method for knowledge construction and formal expression, in particular to a method for map schema-based cartographic knowledge construction and formal expression. Background technique [0002] The essence of digital map drawing is the transformation process of maps from graphics to numbers, and then from numbers to graphics. GIS software represented by ArcGIS, MapInfo, MapGIS, etc. have made breakthroughs in realizing the digitalization of map content and the production of map databases and have become increasingly mature. Model (DLM) and digital map mapping model (DCM), the existing GIS software ignores the overall coordination of the map composed of map symbols, and the symbolized graphics cannot automatically deal with the relationship between various elements, so that symbols The result of the transformation does not meet the expression requirements of cartography, so it...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/30
CPCG06F16/29G06N5/022
Inventor 李霖于忠海朱海红王红应申
Owner WUHAN UNIV
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