private void updatePlot(PlotCurve plotM, int index, double y, int tiemLen, DateTime time)
{
try
{
//检查显示时间窗口，超过时间的予以移除
foreach (var line in plotM.LinesCollect)
{
int len = line.Elem.Points.Count; //获取点数
for (int i = 0; i < len; i++)
{
var t0 = DateTimeAxis.ToDateTime(line.Elem.Points[i].X);
if ((time - t0).TotalSeconds > tiemLen)
{
line.Elem.Points.RemoveAt(0);
i--;
len--;
continue; //此处大于60s 继续
}
break; //没有大于则停止检测
}
}
plotM.LinesCollect.ElementAt(index).Elem.Points.Add(new DataPoint(DateTimeAxis.ToDouble(time), y));
plotM.MplotModel.InvalidatePlot(true);
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, "更新显示");
}
}
/// <summary>
/// 初始化单曲线显示
/// </summary>
/// <param name="plot">显示模型</param>
/// <param name="pv">显示视图</param>
/// <param name="title">标题</param>
/// <param name="strLabel">图例</param>
/// <param name="colors">颜色</param>
private void InitSingleCurve(ref PlotCurve plot, OxyPlot.Wpf.PlotView pv, string title, string strLabel, OxyColor colors)
{
try
{
plot = new PlotCurve(strLabel, colors, title);
pv.Model = plot.GetModel();
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, "初始化显示plot" + title);
}
}
