On the contrary, and for all the reasons you underline, 3D graphs are damn useful: there's no better tool to hide unwanted data in plain sight (that percentage is too small => let me add some depth to the pie chart and voilĂ !)
Posted Jan 16, 2012 21:24 UTC (Mon) by mathstuf (subscriber, #69389)
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3D pie charts are among the worst[1] since when you skew it so that you can *see* the depth, the areas and angles are no longer proportional.
[1]The worst are those trying to be thematic and graphing things with circles for each thing and using the data point as the radius instead of the area for each circle.