Indeed it is, and in fact I’d have thought it was essential for a pie chart.
Here is an example of a flow producing a pie chart of live UK electricity generation breakdown.
Code:
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A sample of the data:
[{"fuel":"biomass","perc":3.1},
{"fuel":"coal","perc":0},
{"fuel":"imports","perc":3.5},
{"fuel":"gas","perc":13.7},
{"fuel":"nuclear","perc":15},
{"fuel":"other","perc":0},
{"fuel":"hydro","perc":0},
{"fuel":"solar","perc":0.5},
{"fuel":"wind","perc":64.1}]
