In general, we all have experience of paper travel maps
or electronic maps as found in Google Maps™
or Google
Earth™
. Unlike paper maps, electronic maps provide
the ability to display the data you need, the way you need it.
There are three main categories of map:
Vectorial maps are a set of points,
lines or areas and can contain additional data such as road names.
You can decide on the look and feel of the display.
Raster maps as satellite views. These
provide realistic views of the earth, but are often heavy and can
be confusing.
Elevation maps that provide altitude
information for any place on the globe.
All three categories can be mixed together in a single
map display.