//private void renderCategoryLabels()
//{
// if (FocusedSegment == null)
// {
// return;
// }
// var context = new ProviderContext(Data.Count);
// MaterialProvider.Reset(context);
// _categoryLabels.Children.Clear();
// var diameter = _segments.RenderSize.Smallest() * CircleScale;
// var outerLabelRadius = (diameter / 2) * OuterLabelPositionScale;
// var overlayedLabelRadius = (diameter / 2) * .7;
// var targetAngularOffset = FocusedSegment.RequireType<ArcPath>().CalculateAngularOffset();
// foreach (var d in Data)
// {
// var materialSet = MaterialProvider.ProvideNext(context);
// var categoryNameLabel = positionLabel(d, outerLabelRadius, targetAngularOffset, true);
// categoryNameLabel.Content = d.CategoryName;
// categoryNameLabel.BindTextualPrimitive<BarTotalPrimitive>(this);
// categoryNameLabel.Foreground = BarTotalForeground.GetMaterial(materialSet);
// _categoryLabels.Children.Add(categoryNameLabel);
// var valueLabel = positionLabel(d, overlayedLabelRadius, targetAngularOffset);
// valueLabel.Content = d.Value;
// valueLabel.BindTextualPrimitive<ValuePrimitive>(this);
// valueLabel.Foreground = ValueForeground.GetMaterial(materialSet);
// _categoryLabels.Children.Add(valueLabel);
// }
//}
private Label positionLabel(CategoricalDouble d, double radius, double targetAngularOffset,
bool horizontalPositionSkew = false)
{
var categoryLabel = new Label
{
HorizontalAlignment = HorizontalAlignment.Center,
VerticalAlignment = VerticalAlignment.Center,
IsHitTestVisible = false
};
var pretransformedOffset = d.RenderedVisual.RequireType <ArcPath>().PolarOffset;
var arcAngle = d.RenderedVisual.RequireType <ArcPath>().ArcAngle;
var pretransformedLabelAngle = pretransformedOffset + (arcAngle / 2);
var actualLabelAngle = pretransformedLabelAngle - targetAngularOffset;
var horizontalLabelSkew = horizontalPositionSkew
? Math.Cos(CoordinateHelpers.ToRadian(actualLabelAngle)) * HorizontalLabelPositionSkew
: 0;
var labelRadius = radius;
var polarPoint = new PolarPoint(actualLabelAngle, labelRadius);
var labelCoordinate = polarPoint.ToCartesian();
categoryLabel.Margin = new Thickness(labelCoordinate.X + horizontalLabelSkew, -labelCoordinate.Y,
-labelCoordinate.X - horizontalLabelSkew, labelCoordinate.Y);
return(categoryLabel);
}
public RingSegmentGeometry(double arcAngle, double polarOffset, Size renderSize,
double ringWidth, CategoricalDouble dataSource) : base(dataSource)
{
ArcAngle = arcAngle;
PolarOffset = polarOffset;
RenderSize = renderSize;
RingWidth = ringWidth;
DataSource = dataSource;
}
public RingSegmentGeometry(double arcAngle, double polarOffset, Size renderSize,
double ringWidth, CategoricalDouble dataSource) : base(dataSource)
{
ArcAngle = arcAngle;
PolarOffset = polarOffset;
RenderSize = renderSize;
RingWidth = ringWidth;
DataSource = dataSource;
}
protected GraphElementGeometry(CategoricalDouble dataSource)
{
DataSource = dataSource;
}
protected GraphElementGeometry(CategoricalDouble dataSource)
{
DataSource = dataSource;
}
