Visio is a great tool for representing complex systems and data and the data graphics functionality in 2007 makes the communication of data even simpler than before. The charting stencil however, while providing an array of charting shapes, doesn’t make it easy to tie actual data to respective chart and so I thought I’d have a look, over the next few posts, at some custom chart shapes that deal more directly with the underlying data. First off is Edward Tufte’s Sparkline chart…
