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Design and Implementation of generic GML parser

Author: LuXiaoJuan
Tutor: LanXiaoJi
School: Jiangxi University of Technology
Course: Applied Computer Technology
Keywords: GML Schema GML Schema-Based Parsing Visualization
CLC: P208
Type: Master's thesis
Year: 2009
Downloads: 101
Quote: 1
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Abstract


Just as XML is now making a significant impact on the ability of organization and transportation of Web information, GML will do the same in the world of GIS.GML an important advantage is that it allows developers or users very flexible to use XML technology which has been widely accepted, It is built on the basis of XML,XML Schema, link and Xpointer.GML data can easily be integrated with the spatial data. At present, the Xerces2 Java Parser2.9.0 is open-source xml parser. The function of open-source is widely adopted among developers.This thesis covers design and implementation a universal GML Parser GMLParser,it bases on the open-source of the Xerces2 Java Parser2.9.0and the research of GML core schema. The GMLParser can parse the application schema of different users and different domain, it can also parse the GML document (GML data file),it can understand the semantic element of GML,That is, the GML document and schema can be identify, which elements are feature set; which elements are feature; which elements are the geometry properties of feature; which type of geometry properties; which elements are the topology properties of feature; which type of topology properties; which elements are the non-spatial properties of feature.In order to ensure the GMLParser that it can parse the application schema of different users and different domain and GML document (GML data file),We also built test for suit it. The Parse Test is a Java application; it can test several different modes of GML documents with clear target.Finally, this thesis studies the visual of the some of the spatial data format of GML document. One way,GML documents transform into SVG document through XSLT language. The other way, reading GML documents from the local computer and visualizing them and editing them.In a word, in this paper ,the results of research is of great significance to the promotion of universal application of GML、the integration of spatial data sharing and GML spatial data storage management.

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CLC: > Astronomy,Earth Sciences > Surveying and Mapping > General issues > Mapping database and information system
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