The routine ggRestorePieChartSettings() restores the default Pie Chart frame, in which the size and position of the Pie Chart are calculated to fit the available drawing area or current window. This resets any frame set up by ggSetPieChartFrame() or the GINOGRAF drawing area set by ggSetPlotFrame().
ggRestorePieChartSettings() also restores all Pie Chart attributes to their defaults. These include: