public override void Draw(CurveChartPlotter chart)
{
var ps = chart.TryFindResource("CardiogramDefaultPath") as Style;
Path path = new Path();
path.Style = ps;
if (this.Color != null)
{
path.Stroke = this.Color;
}
PolyLineSegment pls = new PolyLineSegment();
foreach (var item in this.Source)
{
// Todo ：增加线
Point ptem = new Point(chart.GetX(item.X), chart.GetY(item.Y));
pls.Points.Add(ptem);
}
PathFigure pf = new PathFigure();
pf.StartPoint = pls.Points.FirstOrDefault();
pf.Segments.Add(pls);
PathGeometry pg = new PathGeometry(new List <PathFigure>()
{
pf
});
path.Data = pg;
chart.PathCanvas.Children.Add(path);
this.Elements.Clear();
this.Elements.Add(path);
}
public override void Draw(CurveChartPlotter chart)
{
List <ShapePointMarker> es = new List <ShapePointMarker>();
var ps = chart.FindResource("DefaultCurvePath") as Style;
var ms = chart.FindResource("DefaultMarker") as Style;
var ts = chart.FindResource("XCenterLable") as Style;
var d = chart.FindResource("dashCapline") as Style;
Path path = new Path();
path.Style = ps;
path.Stroke = this.Color;
PolyLineSegment pls = new PolyLineSegment();
List <Point> vs = new List <Point>();
double minSpace = (chart.MaxValueX - chart.MinValueX) / chart.AutoXAxisCount;
double param = 5;
this.Elements.Clear();
foreach (var item in this.Source)
{
// Todo ：增加线
Point ptem = new Point(chart.GetX(item.X), chart.GetY(item.Y));
if (this.Marker != null && this.Marker.Visibility == Visibility.Visible)
{
ShapePointMarker m = Activator.CreateInstance(this.Marker.GetType()) as ShapePointMarker;
m.ScreenPoint = ptem;
m.Fill = this.Marker.Fill;
m.Stroke = this.Marker.Stroke;
m.Text = Math.Round(item.Y, 1).ToString();
m.Style = ms;
// Todo ：如果周边有小于5的值不显示文本
var f = es.Find(k => Math.Abs(k.ScreenPoint.X - ptem.X) < _markTextVisbleLeight && Math.Abs(k.ScreenPoint.Y - ptem.Y) < _markTextVisbleLeight);
if (f != null && !string.IsNullOrEmpty(f.Text))
{
m.Text = string.Empty;
}
es.Add(m);
}
pls.Points.Add(ptem);
// Todo ：增加虚线
// Todo ：存在在范围之内的不添加坐标
if (vs.Exists(k => Math.Abs(k.X - item.X) < minSpace))
{
continue;
}
Line l = new Line();
l.X1 = 0;
l.X2 = 0;
l.Y1 = 0;
l.Y2 = param;
l.Stroke = chart.Foreground;
Canvas.SetLeft(l, chart.GetX(item.X));
chart.BottomCanvas.Children.Add(l);
this.Elements.Add(l);
Label t = new Label();
t.Content = item.Text;
t.Style = ts;
t.FontSize = chart.FontSize - 3;
Canvas.SetLeft(t, chart.GetX(item.X) - t.Width / 2);
Canvas.SetTop(t, 2 * param - t.Height / 2);
chart.BottomCanvas.Children.Add(t);
this.Elements.Add(t);
// Todo ：增加虚线
Line lx = new Line();
lx.X1 = 0;
lx.X2 = 0;
lx.Y1 = chart.ParallelCanvas.ActualHeight - chart.GetY(item.Y);
lx.Y2 = 0;
lx.Style = d;
lx.Stroke = chart.Foreground;
lx.StrokeThickness = 0.5;
Canvas.SetLeft(lx, chart.GetX(item.X));
Canvas.SetBottom(lx, 0);
if (lx.Y1 > lx.Y2)
{
chart.ParallelCanvas.Children.Add(lx);
this.Elements.Add(lx);
}
vs.Add(item.ToPoint());
}
PathFigure pf = new PathFigure();
pf.StartPoint = pls.Points.FirstOrDefault();
pf.Segments.Add(pls);
PathGeometry pg = new PathGeometry(new List <PathFigure>()
{
pf
});
path.Data = pg;
chart.PathCanvas.Children.Add(path);
this.Elements.Add(path);
// Todo ：绘制Marker
foreach (var item in es)
{
chart.ParallelBottomCanvas.Children.Add(item);
this.Elements.Add(item);
}
}