“Population distribution describes a way in which people are spread across the earth surface. Population distribution is usually shown by a dot density map where each dot represent a certain number of ”
In this module, we will learn how to create a dot density map.
Goal: Create a dot density map where 1 dot represents 1000 people.
Data: Sample data: local-data-district.shp, kzn_population.csv
Name | Expectation |
---|---|
CRS |
South African CRS : HBK_NO_29 |
Join column |
District:code |
Spatial algorithm |
Random Points |
New layer |
district_hbk |
Dot density maps are effective at showing density variations on geographic landscapes.
Dot maps are advantageous when mapping phenomena that change smoothly over a space, as the dot maps will visually match the phenomena. There are mainly two type of dot density maps namely one-to-one and one-to-many dot maps.
Dot density maps can be used in conjunction with other thematic maps to understand phenomena that occurs across the earth surface.
Click here to download the sample data for the lesson.