Classifying a pie chart symbol

Idea created by MAPBOX on Sep 4, 2012
    • MAPBOX
    • jlam211
    • enile
    • spaulson2
    • mgaydash
    • ravi_arch1
    • cokinos
    • mping
    Wondering if in the near future the pie chart symbol will be able to be classed like the graduated symbol? For example, a pie chart displaying various substances (oil, gas, condensate & water) and being able to classify them with a range.