The development of algorithms for on-demand map editing for internet and mobile users with GML and SVG

Ida K.L. Cheung, Yu Kai Geoffrey Shea

Research output: Journal article publicationConference articleAcademic researchpeer-review

1 Citation (Scopus)

Abstract

The widespread availability of the World Wide Web has led to a rapid increase in the amount of data accessing, sharing and disseminating that gives the opportunities for delivering maps over the Internet as well as small mobile devices. In GIS industry, many vendors or companies have produced their own web map products which have their own version, data model and proprietary data formats without standardization. Such problem has long been an issue. Therefore, Geographic Markup Language (GML) was designed to provide solutions. GML is an XML grammar written in XML Schema for the modelling, transport, and storage of geographic information including both spatial and non-spatial properties of geographic features. GML is developed by Open GIS Consortium in order to promote spatial data interoperability and open standard. Since GML is still a newly developed standard, this promising research field provides a standardized method to integrate web-based mapping information in terms of data modelling, spatial data representation mechanism and graphic presentation. As GML is not for data display, SVG is an ideal vector graphic for displaying geographic data. GML sets at the back-end to store and transport data meanwhile SVG sets on front-end to render and display geographic data. The technology does not only enable the visualization of geographic data on the web, but also gives the possibility to edit geographic data online, especially via Internet and wireless environment in which GML gives a significant improvement of bandwidth, speed, access and reliability. Since both GML and SVG is text-based and vector format, it is expected that downloads can be considerably shortened and even more important for bandwidth can be substantially improved. This paper therefore seeks to investigate the capability of GML and develop a corresponding data modelling, system and prototype in order to overcome or improve the existing limitation on GIS functions. Further discussion also emphasizes on online map editing function which is still not well developed over existing web mapping system.
Original languageEnglish
JournalInternational Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences - ISPRS Archives
Volume35
Publication statusPublished - 1 Jan 2004
Event20th ISPRS Congress on Technical Commission VII - Istanbul, Turkey
Duration: 12 Jul 200423 Jul 2004

Keywords

  • GIS
  • Internet
  • Interoperability
  • Research
  • Spatial information sciences

ASJC Scopus subject areas

  • Information Systems
  • Geography, Planning and Development

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