public CurveWindow(NormalizerEngine engine)
{
InitializeComponent();
// set title
coefficient.Text = Math.Round(engine.Coefficient(), 4).ToString();
CreateEquation(engine.Fitter);
//// draw curve
canvas.Children.Add(new VisualHost
{
Visual = CreateCurveDrawingVisual(engine)
});
}
private DrawingVisual CreateCurveDrawingVisual(
NormalizerEngine engine)
{
DrawingVisual drawingVisual = new DrawingVisual();
// Create a drawing and draw it in the DrawingContext.
using (DrawingContext drawingContext = drawingVisual.RenderOpen())
{
Pen pen = new Pen(Brushes.Black, 1);
Rect rect =
new Rect(new Point(40, 40), new Point(660, 300)); // range of (600, 260)
drawingContext.DrawRectangle(Brushes.Transparent, pen, rect);
List <double> x = engine.Retention;
List <double> y = engine.Guis;
// draw points
Pen p = new Pen(Brushes.Blue, 3);
double max_x = Math.Ceiling(x.Max() / 10) * 10;
for (int i = 0; i < x.Count; i++)
{
double x1 = x[i] * 600.0 / max_x + 40;
double y1 = 300.0 - y[i] * 20.0;
Point point = new Point(x1, y1);
drawingContext.DrawEllipse(Brushes.Black, p, point, 1, 1);
}
// draw xtics per 5 min
Pen line = new Pen(Brushes.Black, 1);
double max_min = Math.Ceiling(max_x / 5) * 5;
for (int i = 5; i <= max_min; i += 5)
{
double x1 = i * 600.0 / max_x + 40;
double y1 = 300;
double y2 = 290;
double y3 = 310;
Point p1 = new Point(x1, y1);
Point p2 = new Point(x1, y2);
Point p3 = new Point(x1 - 5, y3);
drawingContext.DrawLine(line, p1, p2);
if (i % 2 == 0)
{
FormattedText formattedText = new FormattedText(
i.ToString(),
CultureInfo.GetCultureInfo("en-us"),
FlowDirection.LeftToRight,
new Typeface("Times New Roman"),
11,
Brushes.Black);
drawingContext.DrawText(formattedText, p3);
}
}
FormattedText x_title = new FormattedText(
"Time (min)",
CultureInfo.GetCultureInfo("en-us"),
FlowDirection.LeftToRight,
new Typeface("Times New Roman"),
11,
Brushes.Black);
drawingContext.DrawText(x_title, new Point(320, 330));
// draw ytics per 1 unit
for (int i = 1; i <= 12; i++)
{
double x1 = 40;
double x2 = 50;
double x3 = 26;
double y1 = 300.0 - i * 20.0;
Point p1 = new Point(x1, y1);
Point p2 = new Point(x2, y1);
Point p3 = new Point(x3, y1 - 5);
drawingContext.DrawLine(line, p1, p2);
if (i % 2 == 0)
{
FormattedText formattedText = new FormattedText(
i.ToString(),
CultureInfo.GetCultureInfo("en-us"),
FlowDirection.LeftToRight,
new Typeface("Times New Roman"),
11,
Brushes.Black);
drawingContext.DrawText(formattedText, p3);
}
}
FormattedText y_title = new FormattedText(
"Units",
CultureInfo.GetCultureInfo("en-us"),
FlowDirection.LeftToRight,
new Typeface("Times New Roman"),
11,
Brushes.Black);
drawingContext.DrawText(y_title, new Point(10, 40));
// draw curve
List <Point> points = new List <Point>();
Pen curve = new Pen(Brushes.Red, 1);
double min_x = Math.Floor(x.Min());
for (double i = min_x; i <= max_min; i += 0.01)
{
double x1 = i * 600 / max_x + 40;
double y1 = 300.0 - engine.Normalize(i) * 20.0;
points.Add(new Point(x1, y1));
}
for (int i = 0; i < points.Count - 1; i++)
{
drawingContext.DrawLine(curve, points[i], points[i + 1]);
}
}
return(drawingVisual);
}