protected override void UpdateUIRepresentationCore()
{
if (updating)
{
return;
}
updating = true;
var transform = Plotter.Viewport.Transform;
PathGeometry geometry = PathGeometry;
PointCollection points = Points;
geometry.Clear();
if (BezierPoints != null)
{
points = BezierPoints;
var screenPoints = points.DataToScreen(transform).ToArray();
PathFigure figure = new PathFigure();
figure.StartPoint = screenPoints[0];
figure.Segments.Add(new PolyBezierSegment(screenPoints.Skip(1), true));
geometry.Figures.Add(figure);
geometry.FillRule = this.FillRule;
}
else if (points == null)
{
}
else
{
PathFigure figure = new PathFigure();
if (points.Count > 0)
{
Point[] bezierPoints = null;
figure.StartPoint = points[0].DataToScreen(transform);
if (points.Count > 1)
{
Point[] screenPoints = points.DataToScreen(transform).ToArray();
bezierPoints = BezierBuilder.GetBezierPoints(screenPoints).Skip(1).ToArray();
figure.Segments.Add(new PolyBezierSegment(bezierPoints, true));
}
if (bezierPoints != null && buildBezierPoints)
{
Array.Resize(ref bezierPoints, bezierPoints.Length + 1);
Array.Copy(bezierPoints, 0, bezierPoints, 1, bezierPoints.Length - 1);
bezierPoints[0] = figure.StartPoint;
BezierPoints = new PointCollection(bezierPoints.ScreenToData(transform));
}
}
geometry.Figures.Add(figure);
geometry.FillRule = this.FillRule;
}
updating = false;
}
