MidiMap (Ordnance Survey Meridian 2)
MidiMap is based on the complete Ordnance Survey Meridian 2 dataset, made up of vector layers covering Great Britain (not including the Isle of Man). There is also a digital terrain model, using a 200m grid for the heights above sea level.
MidiMap suggested applications
- Major roads routing;
- Customisable backdrop mapping;
- Site location;
- Territory management;
- Environmental analysis.
MidiMap features & use
- Districts and counties, each including unitary authorities;
- Includes lakes, woods and urban areas as regions;
- Rivers, canals, coastline and administrative boundaries;
- Text labels for settlements and water features;
- Tile edges dissolved to form continuous layers;
- Fits closely with RangerMap product derived from Ordnance Survey 1:50,000 Scale Colour Raster dataset;
- Available as full national coverage or smaller ‘cut-out’ extracts (priced per sq km);
- Also available as separate themes: TopoMap (Topography theme) and TravelMap (Communications theme).
MidiMap 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 880Mb for full GB coverage in MapInfo TAB format.
Main formats available: MapInfo TAB, ESRI SHP, AutoCAD DXF, Illustrator EPS and others.
MidiMap 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.
MidiMap coverage available
- Great Britain; or
- Selected area (priced per sq km); and
- Northern Ireland (companion product – MidiMap OSNI - derived from Ordnance Survey of Northern Ireland 1:50,000 Scale Vector dataset).