Saturday, December 4, 2010

DLG

http://limnology.wisc.edu/lake_information/mendota/mendota.html
A DLG (digital line graph) in the form of a hydrographic map. DLG is digital vector data. Data about map features are stored as lines (arcs), points, and areas (polygons). The lines in this map representing depth in meters of Lake Mendota.

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