X, Y and a bit of Z - Cheater 3D Orthographic Views & Making everything "Spatial"

X, Y and a bit of Z - Cheater 3D Orthographic Views & Making everything "Spatial"

Anya must have pinged me 10 times over the course of the last week asking me questions about rendering 3d cars in Tableau. I figured it must have something to do with curing malaria. My reply was a bit ironic given the fact that I’ve done my own 3d car. I did it for fun though… I don’t like being told I can’t do stuff. it just doesn’t work as part of a production workbook. Well… from a performance standpoint maybe we will get there soon. But for now my suggestion was to pick a good angle and then drive a steamroller over it and just make it into polygons. I really should have seen the next question coming, but she asked how to do that. I was stumped. My best idea was, hire a graphic artist to trace it for you…

Last night she told me she solved it using QGIS… mind explosion! Of course! Why not use mapping software for this? Geography isn’t the only thing spatial. Why shouldn’t you use QGIS to map your car, your plane, the shelves of your supermarket, what have you. I always thought background images were misplaced in Tableau, I wonder if this is what they were thinking when they put it under maps. Latitude and Longitude are just a special name for x and y (or is it the other way around?). Why not hijack Tableau’s mapping capabilities and import your polygons as custom shapes?

I’ve gone to great lengths to hack multiple layers onto maps, so I was excited to hear multi-layered maps will be coming to Tableau, but this opens the door to hacking that feature into all sorts of things. Someone once told me that everything in Tableau is a scatterplot but I’m starting to think maybe everything should be a map. Oh… I am going to crash that Beta so hard!

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Great Arcs in Tableau by Chris DeMartini

Great Arcs in Tableau by Chris DeMartini

This is one of many posts on the subject of Great Arcs which ultimately lead us to the re-make of the 1983 cult classic Wargames in Tableau. I encourage you to read the whole series of posts by the wider team in addition to this one.

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Building a Visualization of Transit System Data Using GTFS

Building a Visualization of Transit System Data Using GTFS

The General Transit Feed Specification (GTFS) defines a common format for public transportation schedules and associated geographic information. GTFS "feeds" allow public transit agencies to publish their transit data and developers to write applications that consume that data in an interoperable way.  This post shows you how to use this data to create interactive transit maps in Tableau.

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Create multiple custom map layers in Mapbox that you can toggle on and off in Tableau

Create multiple custom map layers in Mapbox that you can toggle on and off in Tableau

This adds onto the Mapbox customization for Tableau by showing you how to:

  • Import custom shapefiles
  • Edit them in QGIS (optional)
  • Style them in Mapbox
  • Add them to a Tableau .tms so you can toggle them on and off in many combinations to help your visual analysis.
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Fast and Fabulous Custom Maps using Mapbox in Tableau

Fast and Fabulous Custom Maps using Mapbox in Tableau

So the last time I wanted a custom map, I ended up building my own WMS and spending months and $’s to get the map I wanted.  If you followed that advice - good for you. You and I can now drink at at Tableau conference and tell the young’ins about how we used to have to walk uphill in the snow, wearing only flip flops and a Magnum BI t-shirt, while being pelted with popsicles to get our maps. Then one day recently, I had a cocktail with Allan Walker (that insane mapping Zen dude) who pointed out that if you just opened up a .tms file in notepad, there just wasn’t all that much to it but a wee bit of xml. 

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This Story Starts with an Irresistible Map

This Story Starts with an Irresistible Map

I wanted a Stamen style map in my Viz!  No problem actually, as I could easily design it and export it as an image.  Then I could just use it as background image in Tableau after assigning some Lat, Long coordinates to it.  Viz done… booyah!

Wait, I can't drill into the map and zoom and stuff?

Captains Log… Feb. 6th.  Love the look of my knock off from China town.  I think Shrimp Boy may have had a hand in it even, but I want a real pink pony...

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