Description
You can use an area layer or a point layer when you create a map. Each point or sub-area corresponds to a dimension value.
When to use it
You can use a map to show the geographical distribution of offices, stores, and other sites of business interest. You can visualize not only locations but also sales values and other measures and display the value differences by bubble size or color.
With a point layer
In a simple implementation of a map with a point layer, all bubbles look the same. But by using an expression or a measure, you can let the bubble size reflect the measure value. In the properties panel, add an expression to the point layer, or drag a measure from Master items in the assets panel to the visualization.
You can also use coloring by measure to show differences in values.
With an area layer
With an area layer, each subarea is a dimension value. By using colors, you can differentiate between measure values. In the properties panel, under Colors and legend, click the Colors button to change to Custom where the option By measure is available.
Advantages
The map is a versatile visualization that efficiently presents the geographical distribution of key values related to location or area.
Disadvantages
With a large number of values, it may be hard to get a good overview. Values may be placed on top of each other and not visible until zoomed in.