Chord diagram

From Wikipedia, the free encyclopedia
Jump to: navigation, search
Screenshot from "A Thousand Fibers Connect Us — Wikipedia's Global Reach", winning entry of the WikiViz 2011 Data Visualization Challenge. Lines represent readership of different Wikipedia language versions (lower half) from countries (top half)

A chord diagram is a graphical method of displaying the inter-relationships between data in a matrix. The data is arranged radially around a circle with the relationships between the points typically drawn as arcs connecting the data together.

The format can be aesthetically pleasing, making it a popular choice in the world of data visualization.

Chord diagrams are also known as radial network diagrams or circular layouts.

Hierarchical Edge Bundling[edit]

While a small amount of data could be represented in a circular diagram using straight lines to show the interconnections, a diagram featuring numerous lines would quickly become illegible. To reduce the visual complexity, chord diagrams employ a technique called hierarchical edge bundling.[1]

History[edit]

This type of diagram was popularized in 2007 by the New York Times infographic Close-Ups of the Genome[2]

References[edit]

  1. ^ Holten, Danny (SEPTEMBER/OCTOBER 2006). "Hierarchical Edge Bundles: Visualization of Adjacency Relations in Hierarchical Data". IEEE Transactions on Visualization and Computer Graphics (IEEE Computer Society) 12 (5). ISSN 1077-2626.  Check date values in: |date= (help)
  2. ^ http://circos.ca/ Ciros

External links[edit]