Dot distribution map

A thematic map that uses dots to show the locations or spatial distribution of geographic phenomena. Each dot may represent one occurrence or a fixed quantity.

Dot map: A map that represents data with dots, including maps of point locations and quantitative distributions. This broader map type includes distribution maps that assign dots a fixed value.
Thematic map: A map designed to show the spatial pattern of a specific subject or variable. Dot distribution maps are one way to represent a geographic theme.
John Snow's cholera map: A map of cholera deaths around London's Broad Street during the 1854 outbreak. It is a famous use of mapped locations to investigate a disease cluster.
Proportional symbol map: A thematic map that sizes symbols in proportion to values at specific locations. It encodes quantities with symbol size rather than repeated dots.
One-to-one dot map: A dot map in which each dot represents one observed object or event. This method preserves individual locations rather than aggregating them into a fixed quantity.
Point pattern analysis: Methods for describing and testing the spatial arrangement of point locations. It provides statistical tools for patterns that dots may suggest visually.
Population map: A map showing the size, density, or distribution of a human population. Dots can represent people or fixed population counts, revealing settlement patterns.
Dasymetric map: A choropleth-style map that uses ancillary information to refine data distribution within areas. It reallocates area totals using additional evidence instead of placing representative dots.
One-to-many dot map: A dot map in which each dot represents a fixed number of objects or units. Its chosen value controls the balance between map detail and visual clutter.
Choropleth map: A thematic map that shades geographic areas according to values measured for those areas. It maps area-level rates or totals, unlike dots placed to represent occurrences or quantities.

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Arthur H. RobinsonBroader topic: It illustrates the kinds of spatial patterns thematic cartography organizes and communicates.