public void DrawLine(IEnumerable<Point> points, Color stroke, double thickness, double[] dashArray, bool aliased)
{
var pl = new Polyline();
if (stroke != null)
pl.Stroke = new SolidColorBrush(stroke.ToColor());
pl.StrokeLineJoin = PenLineJoin.Miter;
foreach (var p in points)
pl.Points.Add(ToPoint(p));
pl.StrokeThickness = thickness;
pl.Fill = null;
if (dashArray != null)
pl.StrokeDashArray = new DoubleCollection(dashArray);
if (aliased)
pl.SetValue(RenderOptions.EdgeModeProperty, EdgeMode.Aliased);
canvas.Children.Add(pl);
}
public void DrawLine(IList<ScreenPoint> points, OxyColor stroke, double thickness, double[] dashArray,
OxyPenLineJoin lineJoin, bool aliased)
{
var e = new Polyline();
if (stroke != null && thickness > 0)
{
e.Stroke = GetCachedBrush(stroke);
switch (lineJoin)
{
case OxyPenLineJoin.Round:
e.StrokeLineJoin = PenLineJoin.Round;
break;
case OxyPenLineJoin.Bevel:
e.StrokeLineJoin = PenLineJoin.Bevel;
break;
// The default StrokeLineJoin is Miter
}
if (thickness != 1) // default values is 1
e.StrokeThickness = thickness;
if (dashArray != null)
e.StrokeDashArray = new DoubleCollection(dashArray);
}
// pl.Fill = null;
if (aliased)
e.SetValue(RenderOptions.EdgeModeProperty, EdgeMode.Aliased);
var pc = new PointCollection(points.Count);
foreach (var p in points)
pc.Add(ToPoint(p));
e.Points = pc;
Add(e);
}
/// <summary>
/// 刷新背景网格线，显示曲线
/// </summary>
public void ShowCurve()
{
//绘制曲线
//判断数组中是否有两个以上的数值
//绘制直线
if (this.noteNow > 1)
{
PointCollection pc = new PointCollection();
//int pointI = 0;
for (int i = 0; i <= this.noteNow - 1; i++)
{
if (this.noteMessages[i].X >= this.coordinate)
{
Point p = new Point(this.noteMessages[i].X, this.noteMessages[i].Y);
pc.Add(p);
//pointI++;
}
}
Polyline pl = new Polyline();
pl.Stroke = new SolidColorBrush(Colors.Yellow);
pl.StrokeThickness = 2;
pl.Points = pc;
if (this.ScreenElement != null)
{
if (this.ScreenElement.ElementID != 0)
{
pl.Name = "ShowLinePolyline" + this.ScreenElement.ElementID;
var v = picCurveShow.FindName("ShowLinePolyline" + this.ScreenElement.ElementID);
picCurveShow.Children.Remove((Polyline)v);
}
}
else
{
pl.Name = _ReGuid;
var v = picCurveShow.FindName(_ReGuid);
picCurveShow.Children.Remove((Polyline)v);
}
pl.SetValue(Canvas.ZIndexProperty, 999);
picCurveShow.Children.Add(pl);
}
labShowTime.Text = DateTime.Now.ToString("hh:mm:ss");
}
