Gregor Aisch gave a recent sneak-peek of some OpenSpending visualization work that has resulted in a new visualization method he calls “radial bubble trees”. Built entirely in web-friendly technologies like HTML5 and SVG, it’s a highly-interactive method of diving into the data.
We recently re-implemented the bubble visualisation from WDMMG to make it more re-usable for almost every dataset. Our main aim was to use it in the OpenSpending explorer which lets users explore and analyse government spending in a fun way. We now call the visualisation radial bubble tree, or just bubble tree, because that’s what it actually does: displays tree datasets in a radial layout with bubbles representing the individual nodes. For our purposes, each node represents a budget item.
via New Visualisations for OpenSpending | Open Knowledge Foundation Blog.
