Spatial information analysis method based on scalable vector graphics

A vector graphics and spatial information technology, applied in the field of information analysis, can solve problems such as insufficient basic functions, inability to effectively support user simulation analysis, the needs of auxiliary decision-making, inability to realize spatial information analysis, etc., and achieve simple and effective data analysis. Effect

Inactive Publication Date: 2008-12-10
SOUTH CHINA NORMAL UNIVERSITY
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Problems solved by technology

At present, SVG-based spatial information systems only provide spatial data access (Access), transmission (Transmission), simple retrieval (simple retrieval) and mapping (mapping), and cannot realize spatial information analysis, such as: map overlay ( Key technical characteristics of spatial informatio

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  • Spatial information analysis method based on scalable vector graphics
  • Spatial information analysis method based on scalable vector graphics
  • Spatial information analysis method based on scalable vector graphics

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[0026] The main purpose of the present invention is to design a technical solution to query, analyze and process spatial information in the field of spatial information based on scalable vector graphics (SVG for short). A detailed description is given below with reference to the accompanying drawings in order to give a more in-depth interpretation of the technical features and advantages of the method of the present invention.

[0027] The specific implementation steps of the SVG-based spatial information analysis method of the present invention are: First, establish a SVG spatial data layer and a topological relationship expression specification model; Second, add a spatial topology operator, a spatial attribute access operator, and a spatial measurement operator The standard paradigm of four types of spatial operation operators such as spatial analysis operators; third, standardize the spatial expression of SVG documents according to the established SVG spatial data layer and to...

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Abstract

The present invention provides a space information analyzing method based on retractable vector graphs. The method includes the following procedures: constructing a SVG space data graphic layer and a topological relation expression standard model; adding four kinds of space operator standard models such as space topological operator, space attribute access operator, space measurement operator and space analysis operator; carrying out the space expression standardization according to the constructed SVG space data graphic layer and the topological relation expression standard model; the user defining the object and the assessment standard of the space analysis according to need; basing the transformation of object and the assessment standard of the space analysis on the query terms of SSESQL of the SVG space analysis; displaying the result according to the way set by the user. The analyzing method provided by the present invention can ensure the space information query and analysis and the data analysis of the user are simple and effective so as to support the decision of the user when SVG is used to carry out networked space vector information dynamic release and online analysis.

Description

technical field [0001] The invention relates to an information analysis method, in particular to a spatial information analysis method based on scalable vector graphics (SVG for short) in the field of spatial information. Background technique [0002] With the popularization and application of computer networks, network-based spatial information resources are becoming more and more abundant, and its application fields are also expanding rapidly to meet the needs of all walks of life in society for spatial information. However, various applications are usually closely related to specific spatial information processing software products. There are many types of such software products, each of which has differences and limitations in interfaces, data formats, etc., forming a conflict between cyberspace information resources and users. The big gap: the information gap and the information understanding gap have become one of the important technical factors that make spatial infor...

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Application Information

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IPC IPC(8): G06F17/30
Inventor 温健婷李岩龚海峰
Owner SOUTH CHINA NORMAL UNIVERSITY
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