Chapter 12 — The Realtors and Archaeologists Toolkit 249
additional information. The same technique could have been played to an underground survey,
technical schema, or other data so that it was possible to match information you know with the
live map data that Google provides. With the right overlays and some basic mathematics, it is
possible to build a multi-layer view of a site, perhaps showing different floors, underground lev-
els, and even services such as electricity cables, water pipes, and sewage conduits.
As you can see in both examples, you can use the live Google Map data with other information
to give that information context. To an archaeologist, this means providing reference data that
relates the lay of the land as you know it now with historical information about the location of
objects, finds, buildings, and other elements.
For the Realtor, providing contextual information about a future development enables you to
check whether a site is suitable, whether it’s going to have the right services and connections,
and whether the plan for the site matches the plan in the client’s head. It wouldn’t be hard to
extend the information given, perhaps with photographs of potential views in different loca-
tions, and you could even use the TLabelextension to show the photos on the map.