I have 4 equal size vboxes and each vbox contains 1 piechart with callout label. The piechart width and height are set as 100% of the vbox. Since each piechart has different labels, the sizes of the pies are all different. I am wondering if I can set piechart radius as % of vbox.
Yes, try binding the radius to the parent container's width.
I don't find the radius propery in piechart.