Category Archives: Uncategorized

I am sooo not worthy…

[Sarah Battersby has on previous occasions shown how outrageously smart she is, but she has blown my mind today. I am sooo not worthy…] I’ve been asked on occasion if we can show point data from one data source (containing … Continue reading

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Tableau Data Day Out – Recorded Sessions

As a follow-up to my last post, we now have all the presentation recordings from our Data Day Out event in Melbourne available for viewing. TITLE LENGTH Ideas that Should Die 32 MIN Scribbles and Lines 20 MIN Playing it Safe: Freedom … Continue reading

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More than Dots on a Map

At the recent Tableau Data Day Out in Melbourne, I presented a session entitled “More than Dots on a Map”. The idea was to show how Tableau could allow users to do spatial analysis of their data – irrespective of … Continue reading

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More on spatial file rendering

Following from my post yesterday I had a colleague ask me: “So what happens when you force client-side rendering at the detailed level? Does it blow up with too much data?” Interesting question. Let’s find out. (For those of you … Continue reading

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Spatial files and client/server rendering

In the pre-10.3 world, if we wanted to show custom regions on a map we had to use custom polygons. This approach was less than optimal for a number of reasons (probably the most painful of which was changing the … Continue reading

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Beyond shape files…

[This is one of those moments when you realise you haven’t been seeing the big picture. Digging around the edges of a new concept you suddenly see the foundations are much deeper than you thought. So – hats off to … Continue reading

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How to visualize polar projection data in Tableau

[This ice cap data is the gift that just keeps giving. Today’s guest post is courtesy of Sarah Battersby – Chief Crazy Map Lady in Residence – where she explains how she weaves her dark magic. And then she gloats. … Continue reading

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I am not worthy…

This is why it’s fun working with people who are smarter than me. Way, way smarter… Less than 24 hours after I post about my issues with polar data, Crazy Map Lady Extraordinaire Sarah Battersby tears it up and produces this: … Continue reading

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The Importance of Projections

A few days ago I found a wonderful story about polar ice caps melting that led me to some wonderful data. I thought I could potentially make a viz that showed the changing extent of the sea ice at the … Continue reading

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Using GEOMETRY Fields in Calculations

In Tableau 10.2, we have a new data type that is read from spatial files – the GEOMETRY field. Right now, it would seem there is not much we can do directly with these fields other than display them. The … Continue reading

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