Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

GML analytic method based on GDOM and persistence thereof

A parsing method and persistent technology, applied in the direction of program control devices, etc., can solve the problems of low GML parsing efficiency of GML objects and parsing interfaces

Inactive Publication Date: 2010-08-04
NANJING NORMAL UNIVERSITY
View PDF0 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In view of the fact that the GML objects and parsing interfaces in the prior art are not rich enough and the efficiency of GML parsing is low, the present invention proposes a GML parsing method based on GDOM and its persistence, and the GML document object for GML document parsing Model (GML Document Object Model, GDOM), developed the analysis interface of different objects, designed the GDOM-oriented persistence method, effectively reduced the data content required for GML analysis, and realized the analysis of GDOM persistent files

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • GML analytic method based on GDOM and persistence thereof
  • GML analytic method based on GDOM and persistence thereof
  • GML analytic method based on GDOM and persistence thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0035] The present invention will be described in detail below in conjunction with specific embodiments.

[0036] Taking the spatial query of GML data as an example, the steps from constructing GDOM objects to providing parsing operations to applications are as follows ( Figure 8 ):

[0037] Construction of the GDOM metadata file:

[0038] The generation of GDOM metadata documents depends on the GML semantic parsing process. The GDOM management engine translates the XML object type encountered in the GML data parsing into the corresponding GDOM object type, and creates the GDOM metadata file according to the schema file of the GDOM metadata. The process is firstly a mapping process between DOM object types and GDOM object types. There are two types of elements in GML data files that can be mapped to GDOM objects. One is the element type in the GML core schema, and the other is the element type extended from the GML core element type in the application schema. They each use...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a GML analytic method based on GDOM and persistence thereof, including the steps of GDOM object model design, GDOM semantic analytic interface design, persistence processing method and GDOM data analytic flow. The method of the invention, directing at the disadvantages that GML oriented text analytic interface is not enough and is lack of standard and efficiency is low, designs a document object model with enough GML object expression and semantic manipulation interface (GDOM). Aiming at improving GML analytic efficiency, GDOM object oriented persistence storing method is designed, and structure element data for storing GDOM semantic tree structure information and content element data for storing GDOM semantic tree node content information are defined. On the basis, GDOM persistence file is generated based on SAX method, and GDOM persistence file analyzed based on DOM method. The invention provides solution for efficiently and flexibly processing GML or other semi-structured spatial data resource.

Description

Technical field: [0001] The invention relates to a parsing technology for GML documents conforming to GML international / national standards, specifically a GML parsing method based on GDOM, a GML operation model, and its persistence. Background technique: [0002] Since the Geography Markup Language (GML) was proposed by the Open GIS Consortium (OGC) in 2000, it has attracted the attention of experts, scholars, software vendors and application developers in the field of GIS. With its open and self-describing format system, perfect and rich spatial data expression technology, flexible and changeable application mode generation methods and many other advantages, GML can quickly be used in the expression and modeling, transmission and exchange, integration and sharing of spatial data, etc. It has a positive impact on the research and application of GIS. Especially with the implementation of the GML international standard (ISO19136) and the Chinese national standard "Geographic ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): G06F9/44
Inventor 张书亮孙玉婷闾国年马少松孙宝华邹红吴薇
Owner NANJING NORMAL UNIVERSITY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com