Tableau’s New Story Factors Characteristic is now « Out of This World »
Tableau’s theme for the month of July is « Storytelling », impressed by the brand new story factors function launched in Tableau 8.2. So right here is my first viz utilizing this new function. The subject is « Valhalla », which is the biggest crater within the Photo voltaic System, positioned on Callisto which is without doubt one of the Galilean Moons of Jupiter. An attention-grabbing story, however there have been a number of challenges I needed to overcome that I wished to say.
First, I did not need to merely use static photos. I wished to have the ability to discover Callisto as a map, much like Google maps. Fortuitously I used to be capable of find a WMS server that may be very simple to make use of in Tableau. The following drawback, how do you geocode a degree on a moon of Jupiter? Geocoding is the method of taking an tackle and changing it right into a latitude and longitude in order that the purpose location might be mapped. There are a selection of nice instruments for doing this. One of many best instruments is
The issue is that whereas these instruments can settle for « Atlanta, GA » as an enter, it does not appear to love « Callisto, Jupiter » or « Valhalla, Callisto » (it truly maps to Valhalla, NY simply north of White Plains which isn’t the Valhalla we’re in search of on this explicit case).
I used a little bit of trial and error to resolve this one. I began with a number of random lat/lengthy values to see the place they plotted. I picked the closest level after which began including increments within the information to create factors going within the completely different x/y path. This allowed me to simply appromixate the lat/lengthy worth that Tableau wanted to find Valhalla on Calissto utilizing the WMS server. As soon as I had that time, the map would middle on Valhalla and permit me to discover the realm utilizing the map controls (see the « Discover Callisto » story level). Sure, I may have used some random worth after which manually panned the map to the situation and pinned it, however the place’s the enjoyable in that?
Utilizing the brand new story factors function I added a number of photos, a graph and a few descriptions. I do want that the story factors would permit extra formatting choices, however I am certain that shall be improved in future variations. Under is the outcome; my « out of this world » viz (click on on the picture under for the viz).
I hope you benefit from the viz. You probably have any questions be happy to e-mail me at Jeff@DataPlusScience.com
Jeffrey A. Shaffer
Comply with on Twitter @HighVizAbility