protected override void ConnectFirstLastDataPoints()
{
IChartView view = this.model.GetChartArea().view;
double scaleFactor = Math.Abs(view.ZoomWidth - view.ZoomHeight) / 2;
PathFigure figure = null;
PolyLineSegment lineSegment = null;
foreach (Point point in SplineHelper.GetSplinePointsConnectingAbsoluteFirstLastDataPoints(this.renderPoints, scaleFactor))
{
if (lineSegment == null)
{
figure = new PathFigure();
figure.StartPoint = point;
lineSegment = new PolyLineSegment();
continue;
}
lineSegment.Points.Add(point);
}
if (lineSegment != null)
{
figure.Segments.Add(lineSegment);
this.shapeGeometry.Figures.Add(figure);
}
}
protected override IEnumerable <Point> GetPoints(DataPointSegment segment)
{
// return the first point since spline segmentation skips it
yield return(this.renderPoints[segment.StartIndex].Center());
IChartView view = this.model.GetChartArea().view;
double scaleFactor = Math.Abs(view.ZoomWidth - view.ZoomHeight) / 2;
foreach (Point point in SplineHelper.GetSplinePoints(this.renderPoints, segment, scaleFactor))
{
yield return(point);
}
}