Spatial information analysis method based on scalable vector graphics

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...

AI Technical Summary

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 information systems such as map overlay), buffer, and feature fusion

At its root, the main reason is that the basic functional functions of SVG-based spatial information query, analysis and processing are insufficient, and cannot effectively support users' needs for simulation analysis and auxiliary decision-making.

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