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"Live Maps" is the GIS platform where we offer access to georectified maps, but also where we combine various elements of data to produce maps "on the fly". Apart from producing maps based on pre-selected data, "Live Maps" includes other features. The first one is a timeline. Only the items selected for a given period will show on the maps (e.g. "schools" in 1910-1925). Each physical element like buildings, parks, etc. -- whenever this is known -- is determined by a "date of construction" and "date of destruction" (or change of function). The second feature is the link between these physical elements and the photographic database. All such identified elements in the photographic database will appear with all their associated pictures and actual location on any georectified map in Virtual Shanghai.

Guiyu, China breaks down much of the world's discarded electronics, slowly poisoning itself in the process. Photographs by Chien-min Chung / Reportage by Getty.

Source : China Digital Times