protected override void OnRender(DrawingContext drawingContext)
{
drawingContext.DrawRectangle(whiteBrush, null, new Rect(0, 0, this.ActualWidth, this.ActualHeight));
if (this.Ramp == null)
{
return;
}
double width = this.Ramp.Rails.Cast <RailRampItem>().Sum(r => r.Length);
double height = this.Ramp.LayerHeigh;
var transform = new TransformGroup();
transform.Children.Add(new ScaleTransform(this.factor, this.factor));
//transform.Children.Add(new TranslateTransform(0, height));
drawingContext.PushTransform(transform);
drawingContext.DrawLine(bluePen, new Point(0, 0), new Point(width, 0));
drawingContext.DrawLine(redPen, new Point(0, height), new Point(width, height));
try
{
//drawingContext.DrawRectangle(null, blackPen, new Rect(10, 10, width-20, height-20));
Point from = new Point(0, height);
Point to = new Point(0, 0);
foreach (var item in this.Ramp.Rails.Cast <RailRampItem>())
{
//var p = new Point(item.Length, 0);
//p = p.Rotate(item.Gradient);
double dh = Gradient.CalcHeight(item.Gradient, item.Length);
to = from + new Vector(item.Length, -dh);
drawingContext.DrawLine(blackPen, from, to);
double perc = Gradient.AngleToPercent(item.Gradient);
Point pos = new Point(from.X + item.Length / 2, height);
drawingContext.DrawText(new FormattedText($"{perc:F2}%", CultureInfo.CurrentCulture, FlowDirection.LeftToRight, new Typeface("Verdana"), 12 / this.factor, blackBrush, 1.25), pos);
drawingContext.DrawText(new FormattedText($"{item.Gradient:F2}°", CultureInfo.CurrentCulture, FlowDirection.LeftToRight, new Typeface("Verdana"), 12 / this.factor, blackBrush, 1.25), pos + new Vector(0, 12 / this.factor));
drawingContext.DrawText(new FormattedText($"{dh:F2}mm", CultureInfo.CurrentCulture, FlowDirection.LeftToRight, new Typeface("Verdana"), 12 / this.factor, blackBrush, 1.25), pos + new Vector(0, 24 / this.factor));
drawingContext.DrawText(new FormattedText($"{item.Length:F2}mm", CultureInfo.CurrentCulture, FlowDirection.LeftToRight, new Typeface("Verdana"), 12 / this.factor, blackBrush, 1.25), pos + new Vector(0, 36 / this.factor));
from = to;
drawingContext.DrawEllipse(null, blackPen, from, 5, 5);
}
}
catch (Exception ex)
{
Debug.WriteLine(ex);
}
drawingContext.Pop();
}