Tableau Desktop Certified Associate: Exam Guide

Using background images to plot spatial data

There may be situations when spatial data is not enough to accurately plot data on the map. In such cases, we can also use background images as a background. While this option allows for the most flexibility in how to plot, it also requires the most effort in defining the boundary and point coordinates.

For example, say you wanted to plot the house plan of your house and have the following data:

Location	Location ID	X	Y	Size
Room 3	1	15	20	100
Room 1	2	15	50	100
Room 4	3	40	20	125
Room 5	4	40	50	125
Porch	5	60	40	60

You also have this screenshot:

We add the screenshot data as the data source. To test how the appropriate ...