Visualizing Statistics in Minecraft

Minecraft screengrap showing cows in fron t of colored boxes representing the government expenditure of the united kingdom.

Data about public sector spending is often hard to understand and compare. Statistics about government is often presented in tables. In this hack I have used open data from Eurostat (the EU statistics agency) about government expenditure for a set of countries and rendered sets of boxes in a Minecraft world. This makes it possible to explore the data by walking (flying) around the world. Continue reading

Data visualization tools

A visualization displaying the relation in size between objects.

With the increasing availability of big/open data more people discover a need to make it understandable. One way of understanding data is by looking at it. As I have received a lot of questions lately here is a roundup of tools you can use to create visualizations of data. Continue reading

Visualizing web site interlinkage using Processing

Processing is an open project initiated by Ben Fry (of MIT fame) and Casey Reas (UCLA Design). From the web page:

Processing is an open source programming language and environment for people who want to program images, animation, and sound. Processing is developed by artists and designers as an alternative to proprietary software tools in the same domain.

I have been dabbling with it for a while and have come to like it’s simplicity. The downside is that it sometimes demands a lot from your computer’s processing power.

How it works

The link data for this sketch was collected with a Python script. 250 government web sites were crawled and links to other web sites on the list were recorded. This generated some 2000 links which were fed to the Processing sketch.

Web site links animation snapshot.

The resulting visualization applet can be viewed here. Please note that it will require some processing power to get it running smoothly. You can also view a screenshot of the sketch in action.

Every site starts out as a small disc at the bottom of the screen. More incoming links makes the site grow. Larger sites float to the top of the screen. Smaller sites move out of the way for larger sites. Hovering with your mouse over a site highlights outgoing links from that site to other sites.


The next step is to try PyOpenGL and see if speed can be improved when drawing hese simple 2D primitives. Initial tests looks promising.