Download 1 Install Java Development Kit (JDK) 2 Install processing

HOW TO INSTALL PROCESSING + UNFOLDING
Ubuntu (11.10)
1 Install Java Development Kit (JDK)
Due to the license issues, JDK is not included in Ubuntu and many other distributions.
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Check if you already have it installed. Open a terminal and type the following commands
user@host:~$ javac ­version
javac 1.6.0_26
user@host:~$ java ­version
java version "1.6.0_26"
Java(TM) SE Runtime Environment (build 1.6.0_26­b03)
Java HotSpot(TM) 64­Bit Server VM (build 20.1­b02, mixed mode)
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If your output looks like previous (anything above 1.5.X) , you're good to go
If it doesn't, you can:
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Ubuntu/Debian:
sudo add­apt­repository ppa:webupd8team/java
sudo apt­get update
sudo apt­get install oracle­java7­installer
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RPM based distributions:
◦ Get the RPMs from http://www.oracle.com/technetwork/java/javase/downloads/jdk7u9downloads-1859576.html
In any case, before proceeding you must have java and javac tools pointed to Oracle/Sun Java Machine
2 Install processing
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Go to http://processing.org/download/
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Get last stable release (direct link to 1.5.11 http://processing.googlecode.com/files/processing1.5.1-linux.tgz)
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Extract to a location you want. Once extract, run processing under processing-1.5.1
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First time you run, Processing asks for your workspace (processing names it sketchbook). You
can choose any, just keep it mind which one you chose. In this tutorial, we will go with default
~/sketchbook/
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Processing will start with an empty sketch just like the figure...cool!
3 Install unfolding maps
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Download unfolding maps from www.unfoldingmaps.org. Direct link
https://github.com/downloads/tillnagel/unfolding/unfolding_for_processing.zip
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Remember your sketchbook location? Go there and create a subfolder named libraries. Extract
the contents of the zip in a subfolder named unfolding.
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Download and extract in the same libraries folder the GLGraphics library. Direct link:
http://sourceforge.net/projects/glgraphics/files/latest/download
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By now, you Processing sketchbook folder should look like this
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Now let's see if it works. Restart processing, and paste in the empty document the code you can
find in https://gist.github.com/3970106
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Press play (upper left corner). If you see a world map like the one in the following
picture...Congratulations, you're done!
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Note: If you see an error in the notification area (below your code) you probably need to verify
if you libraries structure is like the one presented before)