Dot Distribution Maps, also referred to as Dot Density maps, are a type of map that uses a dot symbol to show the presence of a feature or phenomenon using nonproportional point symbols, such as population density for example. Each dot equals 10,000 people and do not vary in size, but can be differentiated by varying the shapes or colors of the point symbols. The above map is a dot density map and uses dots to measure the acreage of croplands harvested in the United States in 1949.
No comments:
Post a Comment