private void UpdateChart(DateTime?dateLowRange = null, DateTime?dateHighRange = null)
{
chartTrends.Series.Clear();
foreach (var info in _seriesNames.Cast <object[]>())
{
var color = (Color)info[0];
var lineWidth = (int)info[1];
var chartType = (SeriesChartType)info[2];
var dashStyle = (ChartDashStyle)info[3];
var legendText = (string)info[4];
var toolTip = (string)info[5];
AddToSeries(legendText.StartsWith("HR0") ? "Legend2" : "Legend1",
color, lineWidth, chartType, dashStyle, legendText, toolTip);
}
dateHighRange = dateHighRange ?? DateTime.Now - TimeSpan.FromMinutes(Offset);
dateLowRange = dateLowRange ?? dateHighRange - new TimeSpan(0, _minutes, 0);
Cursor = Cursors.WaitCursor;
try
{
var trenddata = Data.LoadTrend(_riserName, (DateTime)dateLowRange, (DateTime)dateHighRange);
var countSeries = _seriesNames.Count();
for (var i = 0; i < countSeries; i++)
{
chartTrends.Series[i].Points.Clear();
}
foreach (var item in trenddata)
{
var snap = item.Key;
var values = item.Value;
const int step = 40;
const int heigh = 20;
var pos = 2600;
var levlow = ScaleLow;
var levhigh = ScaleHigh;
for (var i = 0; i < countSeries; i++)
{
if (i >= values.Length)
{
continue;
}
var value = values[i];
var customvalue = value.ToString("0");
if (i == 3)
{
levlow = value;
}
if (i == 4)
{
levhigh = value;
}
if (i >= 7 && i <= 8)
{
customvalue = (value / 1000.0).ToString("F3");
value = Convert.ToInt32(ConvertValue(value, 20000, 4000, levhigh, levlow));
}
if (i >= 9)
{
var visualLevel = DecPos(ref pos, step);
var low = visualLevel;
var high = visualLevel + heigh;
value = value == 1 ? high : low;
}
var name = chartTrends.Series[i].Name;
var visible = Data.Session.ReadBool("TrendShowed" + DisplayIndex, name, true);
if (visible)
{
var pt = new DataPoint(chartTrends.Series[i]);
pt.SetCustomProperty("Value", customvalue);
pt.SetValueXY(snap, value);
chartTrends.Series[i].Points.Add(pt);
}
else
{
chartTrends.Series[i].IsVisibleInLegend = false;
}
}
}
}
finally
{
Cursor = Cursors.Default;
}
// добавляем точку справа, чтобы линия тренда заканчивалась на границе
//if (_offset <= 0)
//{
// x.Add(DateTime.Now.AddSeconds(-1));
// for (var i = 0; i < count; i++) y[i].Add(values[i]);
//}
chartTrends.ChartAreas[0].AxisX.Minimum = ((DateTime)dateLowRange).ToOADate();
chartTrends.ChartAreas[0].AxisX.Maximum = ((DateTime)dateHighRange).ToOADate();
AddCursorLine(CursorPosition < dateLowRange ? DateTime.Now.AddSeconds(-1) : CursorPosition);
//InitTrendsList();
FillCursorsData(CursorPosition < dateLowRange ? DateTime.Now.AddSeconds(-1) : CursorPosition);
// восстановление строки в таблице описания серий
if (string.IsNullOrWhiteSpace(_lastSelected))
{
return;
}
var lvi = lvTrends.FindItemWithText(_lastSelected);
if (lvi == null)
{
return;
}
lvTrends.FocusedItem = lvi;
lvi.Selected = true;
lvTrends.EnsureVisible(lvi.Index);
}