The book Visualizing data by Ben Fry inspired me to create a visualization of ZIP codes of Slovakia. It wasn't that easy, though, as there is no official document which would be suitable for such a visualization. Therefore, I firstly had to extract all necessary information from Wikipedia's list of municipalities and towns in Slovakia and then visualize it.
Originally, I wrote the map of ZIP codes in Processing as a term project of Visualization course. Later, I reimplemented it in D3.js and updated it with an option of color patterns, so the system of ZIP numbers could be clearly seen.
term project of Visualization in Human Computer Interaction Laboratory
Python (preprocessing of data)