Δημιουργία διαδικτυακής εφαρμογής με χρήση Web Services σε χωρική βάση δεδομένων με τις τιμές αερίων ρύπων στους σταθμούς μέτρησης στην Ελλάδα
Development of web application that adds functionality to a spatial database by using web services
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Subject
Λογισμικό εφαρμογών -- ΑνάπτυξηAbstract
This thesis concerns the design and development of a web application that adds functionality to a spatial database which was created for this purpose. All software used for the development of this thesis is free software / open source software.
More specifically, database contains the daily average values of seven atmospheric pollutants measured by 30 different measurement stations in Greece. Database has been created with PostgreSQL, a database management system that adds support for geographic objects (PostGIS extension) to an object-relational database.
Geoserver was used for data sharing and map creation through Web Map Service and Web Feature Service
User Interface was created with HTML5 and JavaScript code. Also, JavaScript is used for Geoserver requests and dynamic map creation.
Any user visiting the web page sees on a map the positions of stations pollutants throughout Greece and by clicking on any of them can see his data. He can also choose as a base map Open Street Map, Google Map or Google Satellite.
Finally, user can also query the value of any pollutant, in every station measured, the day of interest.