Large scale map tiles

Both OSNI Fusion and Large-scale are produced from the same database. Large-scale vector is a product from OSNI’s digital database. Vector mapping is a digital representation of topographic map features with attributed points, lines, and polygons.

Key features

• complete coverage of Northern Ireland
• the rich topographical data model and structure allows interactive access to information on features and makes large-scale vector suitable for a wide range of spatial queries
• other vector, raster and address data, including the user's own datasets, can be used to increase functionality for example vector mapping can be overlaid with orthophotography using suitable software
• projection consistent with other OSNI mapping data
• all data fixed on the Irish Grid and capable of transformation to other reference systems
• supplied either as pre determined tiles or as a bespoke clip out centred on a site specific area

Technical Information

• vector data format
• represents the real world in an organised and consistent way, according to a logical series of rules
• contains 17,335 individual tiles, each based on the original large-scale maps of Northern Ireland
• information can be stored for each piece of geometry
• scale free, can be viewed at a range of zoom scales without any loss of clarity
• available in a range of data formats: - NTF, DXF and DWG
• ESRI GDB and MapInfo TAB formats available for full Northern Ireland coverage only
• detail is being constantly updated by OSNI
• area covered by 1:1250 tile 0.6.km x 0.4km
• area covered by 1:2500 tile 1.2km x 0.8km
• bespoke user-defined area available

Applications

• spatial queries
• geo-demographic analysis
• distance and area measurement
• property conveyancing
• planning and resource management
• land registration
• generation of paper products and bespoke cartographic representation

More useful links

• Price lists