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Even when GIS is not involved, most cartographers now use a variety of computer graphics programs to generate new maps. | Even when GIS is not involved, most cartographers now use a variety of computer graphics programs to generate new maps. | ||
Interactive, computerised maps are commercially available, allowing users to ''zoom in'' or ''zoom out'' (respectively meaning to increase or decrease the scale), sometimes by replacing one map with another of different scale, centred where possible on the same point. In-car [[ | Interactive, computerised maps are commercially available, allowing users to ''zoom in'' or ''zoom out'' (respectively meaning to increase or decrease the scale), sometimes by replacing one map with another of different scale, centred where possible on the same point. In-car [[satellite navigation]] systems are computerised maps with route-planning and advice facilities which monitor the user's position with the help of satellites. | ||
From the computer scientist's point of view, zooming in entails one or a combination of: | From the computer scientist's point of view, zooming in entails one or a combination of: |