A cartographic technique visualizes the spatial density of a geographic phenomenon. This technique employs dots to represent the occurrence of a feature or event within a specific area. The location of each dot corresponds to the approximate location of the phenomenon it represents. The density of the dots indicates the concentration of the phenomenon in different regions. For example, a map might utilize dots to illustrate the population distribution across a country, with each dot representing a specific number of inhabitants.
This mapping method provides a readily understandable representation of spatial patterns. The visual impact of the dots effectively communicates areas of high and low concentration, facilitating quick identification of clusters and disparities. Historically, this technique has been valuable in fields such as epidemiology, demography, and market analysis, enabling researchers to discern geographical trends and make informed decisions. Its strength lies in its simplicity and ability to convey complex spatial information in an accessible format.