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Programme 2 Programme Outline
00:0002:32 How the Ordnance Survey uses GPS and sophisticated software to produce maps. 02:3204:30 Electronic maps can contain a wealth of information about roads, buildings and land use. 04:3007:20 We can use electronic maps in our cars to find what we want, such as shops and food. These route-finder systems are responsive to changing conditions. How they work. 07:2010:27 Using a dialog box on an electronic map to find places of interest and food to eat at the places were going to. 10:2713:15 Aerial photographs are matched with existing maps and other data to produce a digitised image of the landscape. A three-dimensional map of the terrain can be constructed. 13:1515:50 Digital maps and images are used in simulations. A computer games producer uses mapping and imaging techniques to make rally simulations more realistic. 15:5017:55 An electronic map with a communications link to a GPS system can create virtual worlds. A small machine with a big screen can become a personal digital assistant (PDA), with up-to-the-minute information on traffic, weather and so on. 17:55end Conclusion.
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