Archive for May, 2012

Fusion Tables: Wat kan ik met een Network Graph?

Ik heb al eerder gepost over Google Fusion Tables. (artikel 1, artikel 2).

Fusion Tables beschikt sinds kort over een aantal experimentele tabelfuncties. Althans, zo worden ze door Google genoemd. Tabelfuncties zijn al jaren ‘in Beta’, maar deze functies zijn dus nog iets experimenteler dan de rest.

In deze post bespreek ik mijn ervaringen met de Network Graph. De tutorial van Google begint veelbelovend:

The Network Graph visualization supports undirected and directed graph structures. This type of graph is particularly useful in illuminating relationships between entities.

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Comparing segments of a stacked bar chart

When one chooses to use a stacked bar chart, it is seldom because it is the perfect visualization of your data. It is usually the result of some kind of compromise.

While it is possible to compare the totals, it is hard to compare the different segments. At least, that is true in case of static charts. When using interactivity and animation, one can overcome that problem.

Maybe this is a known solution, but I have never seen it before and therefore I decided to make the prototype. Hovering the mouse over the legend works better than hovering the mouse over the bars. Finding a good solution for interaction with the bars is not trivial. I may work that out when the situation arises that I’m actually going to use this functionality.

So far it’s only tested on Firefox, Safari and Chrome.

A possible solution to compare the segments within the same bar: rotate all segments 90 degrees.

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Animated ISOTYPE: Population Density

This is the first publication of my Isotype project. I spent about 2-3 days on this datavisualization. I used the website ‘het Geheugen van Nederland‘ to browse through the great collection of Isotype publications by Gerd Arntz. Many of these publications can be modernized (i.e. updated with current statistics and be made interactive), but it was more difficult than I expected to provide interactivity such that it is interesting and provides added value to the original static production.

I chose the population density illustration for my first publication. This is a fairly simple illustration with only two different icons (country and inhabitant). Below you see the original image, which can also be found here.

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