No sine or cosine functions, no table calculations or LODs – the only features we are using are maps and Mark types. The good news: We don’t need a single calculation for it. The chart as a whole tells me how long the runtime is for all movies and series (taken as one episode) and in which genre I have the most hours of movie time represented. I can visualize what movies or series belong to which genre and how long their runtime is. Like in this case: Here, we have a few movies and series ready to be watched on a cozy evening in. Sunbursts give a quick survey of one or several measures on at least two dimensions, and most times more. What is a sunburst chart? Well, it’s easier to show than to explain:Īnd what do I need a sunburst chart for? Well, it is more of a visually pleasing chart than it is one for deeper analysis. You can find a detailed explanation on map layers in my previous blog post. What’s more: We can rename each layer, hide or show them, and prevent them from being clicked or automatically zoomed in. We just drag the geo field into our view, move it onto Add a Marks Layer in the upper-left corner and have another layer we can work on with color, size, text or tooltips, completely independent of other layers. Map layers allow us to add as many layers in our map as we want. Still, we were limited to two layers overall. Up until that version, if we wanted to show or fill two layers on a map instead of one (country and states, for example, each with different measures on Color), we had to duplicate our longitude (or latitude) and create a dual-axis chart. Tableau Desktop 2020.4 introduced the management of map layers. So, what is all that fuss about? A Review of Map Layers Some are calling it a game-changer already. The Tableau community is continuing to find new ways to make the most out of Map Layers, a new feature from version 2020.4. It’s rare that a new Tableau feature can be used for so many other use cases beyond those intended.
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