There are a variety of data types available to discover and use on Sri Lanka Geo Portal. These include: Dynamic Data and Maps. GIS users can access live data and maps through Web Map Service (WMS), using software tools viz. Sri Lanka Geo Portal Map Viewer. Downloadable Data - Data downloads enable you to perform custom downloads of digital data you are viewing to access locally with GIS Software. Visit the Free Viewers page for a list of GIS data viewers. Offline Data - Many publishers offer data that can be ordered online.