How do YOU create various resolutions of the same map?

[Hai-Etlik]

Vector graphics, or better yet, unsymbolized vector data in a GIS.

Also, simply zooming in doesn't really work very well. A projection suitable for a world map, isn't generally a good projection for a continent, and a projection that works well for a continent, isn't necessarily a good match for a single city.

[Mark Oliva]

We use only raster graphics, no vector graphics. Nonetheless, or main mapping program, Fractal Mapper (TM) 8, has multi-zoom functionality that makes such operations very easy. It's described in our free 220-page PDF tutorial, You can get it at:

http://www.vintyri.org/vintyri/tu1.htm