Tom Vijlbrief

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This paper describes the architecture of a truly integrated D GIS The system has two main components an extensible database Postgres and an extensible geographic front end GEO The database is extended with D geometric data types functions and a D access method The implementation of the D visualization is based on the graphics standard PEX The resulting(More)
An approach to an open infrastructure for geographic information on the Internet is presented in this chapter. This infrastructure enables data providers to publish their data independently, while enabling end-users to access data from several providers simultaneously, and integrate the data locally in a geographic browser. Our goal is that an end-user(More)
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