/// <summary>
/// Fills a PointF array of data points absolute pixel positions.
/// </summary>
/// <param name="graph">Graphics object.</param>
/// <param name="area">Chart area.</param>
/// <param name="series">Point series.</param>
/// <returns>Array of data points position.</returns>
override protected PointF[] GetPointsPosition(ChartGraphics graph, ChartArea area, Series series)
{
PointF[] pointPos = new PointF[series.Points.Count + 1];
int index = 0;
foreach (DataPoint point in series.Points)
{
// Change Y value if line is out of plot area
double yValue = GetYValue(Common, area, series, point, index, 0);
// Recalculates y position
double yPosition = area.AxisY.GetPosition(yValue);
// Recalculates x position
double xPosition = area.circularCenter.X;
// Add point position into array
pointPos[index] = graph.GetAbsolutePoint(new PointF((float)xPosition, (float)yPosition));
// Rotate position
float sectorAngle = area.CircularPositionToAngle(point.XValue);
Matrix matrix = new Matrix();
matrix.RotateAt(sectorAngle, graph.GetAbsolutePoint(area.circularCenter));
PointF[] rotatedPoint = new PointF[] { pointPos[index] };
matrix.TransformPoints(rotatedPoint);
pointPos[index] = rotatedPoint[0];
index++;
}
// Add last center point
pointPos[index] = graph.GetAbsolutePoint(area.circularCenter);
return(pointPos);
}
protected override PointF[] GetPointsPosition(ChartGraphics graph, ChartArea area, Series series)
{
PointF[] array = new PointF[series.Points.Count + 1];
int num = 0;
foreach (DataPoint point in series.Points)
{
double yValue = this.GetYValue(base.common, area, series, point, num, 0);
double position = area.AxisY.GetPosition(yValue);
double num2 = (double)area.circularCenter.X;
array[num] = graph.GetAbsolutePoint(new PointF((float)num2, (float)position));
float angle = area.CircularPositionToAngle(point.XValue);
Matrix matrix = new Matrix();
matrix.RotateAt(angle, graph.GetAbsolutePoint(area.circularCenter));
PointF[] array2 = new PointF[1]
{
array[num]
};
matrix.TransformPoints(array2);
array[num] = array2[0];
num++;
}
array[num] = graph.GetAbsolutePoint(area.circularCenter);
return(array);
}