“Dot density maps are a thematic representation to show density distributions across geographical landscapes.”
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 represents a certain number of people.
Goal: Create a dot density map where 1 dot represents 10000 people.
TO DO
Try to create a heatmap from the random points generated and see how it looks like.
Name | Expectation |
---|---|
CRS |
EPSG:3857 or any other that of the specified Projection |
Spatial algorithm |
Random Points Inside Polygon |
Column type |
Type - Double,Length - 10 , Precision - 3 |
Projection |
Albers Equal Area Conic, Sinusoidal, and Cylindrical Equal Area |
Dot maps are advantageous when mapping phenomena that change smoothly over space, as the dot maps will visually match the phenomena. There are two basic types
NB All dot density maps must be drawn on an equal area map projection. This is critical — using a map projection which does not preserve the size of areas will distort the perceived density of the dots. Albers Equal Area Conic, Sinusoidal, and Cylindrical Equal Area are all good choices.
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