TopoMap is derived from the Ordnance Survey Meridian 2 Topographic theme data set, which is created and maintained by Dotted Eyes, made up of vector layers covering Great Britain (not including the Isle of Man).
TopoMap suggested applications
- Customisable backdrop mapping;
- Site location;
- Territory management;
- Environmental analysis.
TopoMap features & use
- Lakes, woods and urban areas as regions;
- Rivers, canals and the coastline as lines;
- Text labels for settlements and water features;
- District and county layers, each including unitary authorities;
- Find any features from the names included as attribute data;
- Features fit perfectly with TravelMap vector data, also derived from Ordnance Survey Meridian 2 data set;
- Available as full national coverage or smaller ‘cut-out’ extracts (priced per sq km).
TopoMap technical information
A workspace (for use in MapInfo Professional GIS) or project file (for use in ESRI ArcView/GIS) opens all the layers and sets zoom layer thresholds that determine when the layers are visible.
Suitable for scales on screen in the range 1:2,000,000 to 1:20,000. More layers become visible as you zoom in.
The location of boundaries is accurate to within 50m. This is within one pixel on screen at scales of up to 1:200,000.
The British National Grid co-ordinate system is used. The coastline fits closely with RangerMap (derived from 1:50,000 Scale Colour Raster from Ordnance Survey).
The storage space required is about 130Mb for full GB coverage in MapInfo TAB format.
Main formats available: MapInfo TAB, ESRI SHP, AutoCAD DXF, Illustrator EPS and others.
TopoMap is licensed for internal business use by a specified number of users and includes hard copy prints up to A3 in size. Publishing on the Internet may count as a single user, depending on the application.
After the first year there is an annual charge equal to the initial price, including one update per year.
TopoMap coverage available
- Great Britain; or
- Selected area (priced per sq km); and
- Northern Ireland (companion product – TopoMap OSNI - derived from part of Ordnance Survey of Northern Ireland 1:50,000 Scale Vector dataset).