public interface PieChart
FacetChart.getPieStartAngle(),
FacetChart.getPieSliceProperties(),
FacetChart.getPieBorderProperties(),
FacetChart.getPieRingBorderProperties(),
FacetChart.getShowDoughnut(),
FacetChart.getDoughnutRatio(),
FacetChart.getDoughnutHoleProperties(),
FacetChart.getPieLabelLineProperties(),
FacetChart.getPieLabelAngleStart(),
FacetChart.getPieLabelLineExtent()