One a day I got to know a gay who created a polygon diagram and use that as a filter. I was very impressed of that and wanted really to rebuild that one. See my workbook here So how to do that? - First of all I cheesed a picture. I decided to take a shop square plan. Click right to the picture you cheesed and go to "Features" - "Details" - Remember wider and higher - In order to open this picture with tableau, I created a Google sheet with this two coordinates: In order to open this file with tableau you should go to: - Maps - Background Image - Import - And fill details as on the example below - Press "OK" - Drop the X axis to column and the Y axis to the rows - and you will get this picture - Now I want to show some departments on this picture, like where customers can find some kitchen equipments, books, games etc. In order to highlight the area, you have to mark some points on it - Choose any point on t...