/// <summary>
/// Converts the specified data point coordinates to physical coordinates (in pixels) using the primary chart axes (if any).
/// </summary>
/// <param name="data">The data point coordinates according to the primary chart axes (if any).</param>
public Point ConvertDataToPoint(Tuple <object, object> data)
{
if (data == null)
{
return(new Point(double.NaN, double.NaN));
}
RadPoint coordinates = (this.chartArea as CartesianChartAreaModel).ConvertDataToPoint(data);
return(coordinates.ToPoint());
}
/// <summary>
/// Converts the specified data point coordinates to physical coordinates (in pixels) using the specified chart axes.
/// </summary>
/// <param name="data">The data point coordinates according to the specified chart axes.</param>
/// <param name="horizontalAxis">The horizontal axis.</param>
/// <param name="verticalAxis">The vertical axis.</param>
public Point ConvertDataToPoint(Tuple <object, object> data, Axis horizontalAxis, Axis verticalAxis)
{
if (data == null || horizontalAxis == null || verticalAxis == null)
{
return(new Point(double.NaN, double.NaN));
}
RadPoint coordinates = (this.chartArea as CartesianChartAreaModel).ConvertDataToPoint(data, horizontalAxis.model, verticalAxis.model);
return(coordinates.ToPoint());
}
public static Geometry RenderArc(DoughnutSegmentData context)
{
PathFigure figure = new PathFigure();
figure.IsClosed = true;
figure.IsFilled = true;
RadPoint startPoint = RadMath.GetArcPoint(context.StartAngle, context.Center, context.Radius1);
figure.StartPoint = startPoint.ToPoint();
ArcSegment firstArc = new ArcSegment();
firstArc.Size = new Size(context.Radius1, context.Radius1);
firstArc.IsLargeArc = context.SweepAngle > 180 || context.SweepAngle < -180;
var angle = context.StartAngle;
if (context.SweepDirection == SweepDirection.Clockwise)
{
angle += context.SweepAngle;
}
else
{
angle -= context.SweepAngle;
}
firstArc.SweepDirection = context.SweepAngle > 0 ? context.SweepDirection : context.SweepDirection ^ SweepDirection.Clockwise;
firstArc.Point = RadMath.GetArcPoint(angle, context.Center, context.Radius1).ToPoint();
figure.Segments.Add(firstArc);
LineSegment firstLine = new LineSegment();
firstLine.Point = RadMath.GetArcPoint(angle, context.Center, context.Radius2).ToPoint();
figure.Segments.Add(firstLine);
ArcSegment secondArc = new ArcSegment();
secondArc.Size = new Size(context.Radius2, context.Radius2);
secondArc.IsLargeArc = context.SweepAngle > 180 || context.SweepAngle < -180;
secondArc.SweepDirection = context.SweepAngle > 0 ? context.SweepDirection ^ SweepDirection.Clockwise : context.SweepDirection;
secondArc.Point = RadMath.GetArcPoint(context.StartAngle, context.Center, context.Radius2).ToPoint();
figure.Segments.Add(secondArc);
PathGeometry geometry = new PathGeometry();
geometry.Figures.Add(figure);
return(geometry);
}