Category Archives: Uncategorized

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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