Cirkulárna vizualizácia dát dochádzky za prácou na príklade obcí Bratislavského samosprávneho kraja

Abstract

Circular visualization has recently become a kind of imaginary leader in the field of graphic visualization, mainly due to its attractive circular layout and the ability to display large amounts of data. In our paper, we focused only on a small subset of this group, namely the creation of chord diagrams that are useful in depicting the interrelationships between the observed regions. Commuting data represent an ideal example of such use, as we can clearly identify the source and target regions. In our paper, we used the communes of the Bratislava self-governing region as a model territory and data on daily commuting to work and schools from 2011. We used two basic tools to create these diagrams. Using Circos online application we created static chord diagrams, interactive diagrams were created using D3 library, which has integrated functions for creating such graphical outputs. It is a relatively frequently used graphic expression in the world, but very rarely in Slovakia and neighboring countries. In this paper we want to point only to the basic possibilities and limits of this attractive graphic form, which is very often used in the Internet for displaying various data.