protected static void RenderLine([NotNull] IDrawingContext drawingContext, ref WindowsRect clippingRect, IList <WindowsPoint> points, Color color)
{
// FIXME: calculate (optimistic) clipped line beforehand so that points that are eventually outside of the clipped area are not given to the rendering context.
// FIXME: note that in the end the curve is still clipped by the canvas Clip property.
drawingContext.DrawPolyline(points, color);
}
public void Draw(IDrawingContext context)
{
context.DrawPolyline(_startPoint, _points);
}