private PathGeometry CreateAreaCurveGeometry()
{
PathGeometry pathGeometry = new PathGeometry();
PathFigure pathFigure = new PathFigure();
pathGeometry.Figures.Add(pathFigure);
Point[] catmullRomPoints = new Point[_childrenPositions.Count];
_childrenPositions.CopyTo(catmullRomPoints, 0);
Point[] bezierPoints = GeometryOperation.CatmullRom(catmullRomPoints);
pathFigure.StartPoint = bezierPoints[0];
PolyBezierSegment pbs = new PolyBezierSegment();
for (int i = 1; i < bezierPoints.GetLength(0); i++)
{
pbs.Points.Add(bezierPoints[i]);
}
pathFigure.Segments.Add(pbs);
if (AreaBrush != null)
{
pathFigure.Segments.Add(new LineSegment(new Point(_childrenPositions[_childrenPositions.Count - 1].X, GetHorizontalAxis(this)), false));
pathFigure.Segments.Add(new LineSegment(new Point(_childrenPositions[0].X, GetHorizontalAxis(this)), false));
}
return(pathGeometry);
}
private PathGeometry CreateLineCurveGeometry()
{
PathGeometry pathGeometry = new PathGeometry();
PathFigure pathFigure = new PathFigure();
pathGeometry.Figures.Add(pathFigure);
pathFigure.StartPoint = (Point)GeometryOperation.ComputeIntersectionPoint((FrameworkElement)InternalChildren[0], (FrameworkElement)InternalChildren[1]);
PolyLineSegment pls = new PolyLineSegment();
for (int i = 1; i < InternalChildren.Count; i++)
{
pls.Points.Add(GeometryOperation.ComputeIntersectionPoint((FrameworkElement)InternalChildren[i],
((FrameworkElement)InternalChildren[i - 1])));
}
pathFigure.Segments.Add(pls);
if (AreaBrush != null)
{
pathFigure.Segments.Add(new LineSegment(new Point(_childrenPositions[_childrenPositions.Count - 1].X, GetHorizontalAxis(this)), false));
pathFigure.Segments.Add(new LineSegment(new Point(_childrenPositions[0].X, GetHorizontalAxis(this)), false));
}
return(pathGeometry);
}