Invention and Engineering

Dot distribution map

A dot distribution map (or a dot density map or simply a dot map) is a type of thematic map that uses a point symbol to visualize the geographic distribution of a large number of related phenomena. Dot maps are a type of unit visualizations that rely on a visual scatter to show spatial patterns, especially variances in density. The dots may represent the actual locations of individual phenomena, or be randomly placed in aggregation districts to represent a number of individuals. Although these two procedures, and their underlying models, are very different, the general effect is the same.

Also on this shelf

See also

• ▸California Western 45
• ▸Holy Trinity Church, Runcorn
• ▸British Rail Class 55

Uncatalogued shelf

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