RangerMap OSNI is a backdrop raster map product derived from the Ordnance Survey of Northern Ireland 1:50,000 Scale Colour Raster dataset. It consists of raster images, ideally suited for scales on screen in the range 1:35,000 to 1:6,000. There is also a vector layer of place names suitable for use with the Find command in a GIS.
RangerMap OSNI suggested applications
- Development and land use planning;
- Environmental impact analysis;
- Vehicle routing;
- Asset management;
- Marketing analysis.
RangerMap OSNI features & use
- Town-level map, with cartographically positioned text;
- Main feature colours consistent with TourerMap OSNI;
- Subtle pastel colours are used, so any overlay layers can be seen more readily;
- Assess terrain height with spot heights and contours at 10m;
- Gazetteer of over 400 settlements: towns, cities, suburbs and villages;
- Supplied as 20km square images, available in any combination;
- Fits with TravelMap OSNI and TopoMap OSNI;
- Ready to use with a seamless table for MapInfo software or image catalogue for ESRI software.
RangerMap OSNI technical information
A workspace or project file is supplied.
A georeferencing file positions each image and a seamless table opens all the files required for the current map view.
The nominal scale of these images is 1:50,000 (about 1¼ inch to 1 mile) and the resolution is 10 dots/mm (254 dpi). Each pixel represents 5m square.
The Irish Transverse Mercator Grid co-ordinate system is used.
The storage space required is approximately 2Mb per 20km x 20km tile on average. LZW compression is used for TIFF, or 115MB for national coverage in MapInfo TAB format.
Main formats available: TIFF, JPEG and others, along with georeferencing files for use in GIS.
RangerMap OSNI coverage available
- Northern Ireland; or
- Selected area (priced per tile); also
- Great Britain (companion product – RangerMap - derived from the Ordnance Survey Great Britain 1:50,000 Scale Colour Raster dataset)