Geoffrey Rockwell and I are delighted to welcome the newest member of the Voyant Tools family: RezoViz, a network visualization interface. RezoViz is actually an adaptation of the Halfviz example from the arbor.js library by Christian Swinehart. There is a dizzying number of graphing libraries out there, but we wanted to work with one that was reasonably efficient for larger datasets, HTML5-based (not Flash), easily extensible, and with an open-source license – arbor.js fits all of these conditions, and I especially liked the built-in editor of Halfviz.
Here are some of the more significant modifications that were made to RezoViz based on the Halfviz code:
- hovering over labels changes their colour
- labels that are linked also change colour, with little badges that indicate a value
- labels are drawn “above” the network lines to make them easier to read
- there’s an option to specify the maximum number of labels to show
- there is a search bar that produces results in the graph as you type
- edge (line) thickness and opacity are calculated dynamically based on relative values
Want to see it in action? Try the Humanist archives demo (that’s still a work in progress). I’ll post a link to the GitHub repository for the code soon. Keep posted as well for more news of full integration with Voyant Tools.
I am an Associate Professor of Digital Humanities at McGill University. My primary area of research is in the design, development, usage and theorization of tools for the digital humanities, especially for text analysis and visualization. I have led or contributed significantly to 