Tomaz Zagar
Head of IT Department
Geodetic Institute of Slovenia
Slovenia

Biography
Tomaž Žagar is currently the head of IT department and the lead programmer at Geodetic Institute of Slovenia. He has over 15 years of experience in software development and system engineering. His responsibilities and interests cover thematic web cartography, web and desktop applications design (e.g. geospatial applications, e-learning portals, data acquisition, dissemination and analysis software, computer graphic related software) and the implementation of machine learning algorithms. He is particularly interested in using and customizing open source solutions.

Abstract
INSPIRE on the Stage

Co-Author: Igor Kuzma, Statistical office of the Republic of Slovenia

STAGE is a Web-GIS platform for merging statistical and geographical data. It enables cartographic presentation and dissemination of geospatial statistical data by selected spatial units in combination with various base maps. The application is designed as a web map application featuring Open Web Services. It follows the INSPIRE directive recommendations regarding the metadata and network services. The architecture allows the user to interactively visualize geostatistical data and access or edit the respective metadata. The application offers interactive cartographic window to visualise a selection of statistical data as thematic choropleth maps with spatial querying tool to delineate user defined areas of interest for analysis and display of statistical data. Created views can be shared, exported as picture or downloaded as raw geospatial data sets. STAGE offers time series of statistics presented on spatial units (e.g. administrative units and grids) which makes it a powerful tool for monitoring the past development of particular phenomenon and suggesting the future trends.

The map is rendered client side in an HTML5 canvas according to the data obtained from the platform web services. This approach was chosen to unify the presentation of nonhomogenous data sets, e.g. some layers have 2 polygons with several thousand of points while other layers are grids (having several thousand - even 100 000 or more - quadrilaterals) and there is a demand to show several thousand of objects when the large map areas are being viewed. Another reason for the chosen approach was to move the majority of map processing from the server to the client. STAGE will be presented together with applied technical and methodological solutions.