How to create a pie chart from 3 fields

[lduane]

How can I create a pie chart from 3 fields in a record. I am trying to create a pie chart in an expanded row (i.e.Ext.ux.RowExpander (http://docs.sencha.com/ext-js/4-1/#)) from the fields in the record passed to toggleRow.

[mitchellsimoens]

The Pie works with a record being for each slice so you need multiple records not one.