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A method of ground object symbolization to realize the integration of image library

A technology of symbolization and ground features, applied in the field of geographic information, to avoid the generation of auxiliary symbols and entities, realize the integration of the library, and meet the effect of direct storage

Active Publication Date: 2016-08-24
GUANGDONG SOUTH DIGITAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current symbolization method usually needs to modify the program when customizing some complex symbols, which brings a lot of inconvenience to the platform users

Method used

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  • A method of ground object symbolization to realize the integration of image library
  • A method of ground object symbolization to realize the integration of image library
  • A method of ground object symbolization to realize the integration of image library

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Experimental program
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Embodiment

[0069] The present invention realizes the feature symbolization method of gallery integration, and its implementation steps are as follows:

[0070] (1) Configure the symbol library template. First, according to the classification of symbols in different data dictionaries and topographic map diagrams in various places, determine the feature classes contained in the database and the ground object entities stored in each feature class, configure the GIS table and extended attribute table in the symbol library template, Establish the corresponding relationship between the spatial database feature class name, type and the attribute fields it carries. Then establish the mapping relationship between ground objects, symbols and codes in the code list.

[0071] (2) According to the classification of symbol description sentences, use standard format description sentences to describe feature symbols in the symbol table and auxiliary symbol table. Complete the customization of the symb...

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Abstract

The invention discloses a surface feature symbolization method for realizing map library integration. The method comprises the following steps: S1) configuring a symbol library template; S2) defining surface feature symbols, and describing shapes of the surface feature symbols by description statements; S3) uploading and analyzing the symbol library template on a drawing platform; S4) symbolizing the drawn surface features in real time; S5) editing continuation attribute values of the surface feature symbols by using an attribute control panel; S6) fine adjusting the shapes of the symbols by setting characteristic points; S7) when data is input to a database, creating feature classes and inputting information according to the corresponding relation of the surface feature symbols and the feature classes in a GIS (Geographic Information System) table. The invention adopts the symbolization protocol rules in the symbolization technology: all the surface feature symbols are formed by nesting basic entities, and in the instantiation process of the surface features, only one feature is needed for precise expression. According to the method, the storage space needed by the symbols is greatly reduced, the generation of extra auxiliary symbols and entities is avoided, and the map library integration is truly realized.

Description

technical field [0001] The present invention relates to the technical field of geographic information, and in particular to a complete feature symbolization method capable of realizing the integration of a library for map mapping and storage. Background technique [0002] As a major form of geographic information visualization, maps have existed for thousands of years, and modern maps have strict mathematical foundations and systematic map symbols. In the field of surveying and mapping, in order to make topographic and cadastral maps concise and beautiful, and to facilitate the identification of objects, determination of orientation and measurement calculations on the maps, some graphics and annotations have been formulated to represent certain physical features. These graphics and annotations are called feature symbols. Feature symbols are the basic language unit for expressing geographic information on topographic and cadastral maps. The symbolization of topographic map d...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/30
Inventor 倪晓东吴龙祥赖荣贵吉绪发李少白范铀梁哲恒王洪飞张倩斯刘茜
Owner GUANGDONG SOUTH DIGITAL TECH
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