Module 10: Dot Maps

Module 10's objectives were to join spatial and tabular data, and understand dot density symbols.  Along with dot density, a goal was to learn how to use masking and good dot map practices.

The map I prepared shows the population density of Florida counties.  To create this map I joined census data to the county shapefile.  Then I used the Quantities and Dot Density under the Symbology tab.  I selected the Population field to use to display the dots and adjusted the dot size.

To avoid dots being placed where people do not live such as rivers or lakes, I used the masking property.  Here I can select what layer the dots should be placed or which layer to avoid.  I selected to have dots placed in urban areas.