public void RaiseSnapshotDataChanged(SnapshotAMSContract2 contact)
{
if (snapshotDataChanged != null)
{
snapshotDataChanged(this, new SnapshotDataChangedEventArgs(contact));
}
}
private void OnSnapshotDataChanged(SnapshotAMSContract2 contract)
{
try
{
showAMSCheckBox.IsChecked = true;
m_chart.BeginUpdate();
if (contract != null)
{
if (m_chart.ViewXY.PointLineSeries[1].PointCount > 0)
{
m_chart.ViewXY.PointLineSeries[1].Clear();
}
var snapshotItems = contract.Item.OrderBy(o => o.STIME).ToArray();
int length = snapshotItems.Length;
SeriesPoint[] points = new SeriesPoint[length];
for (int i = 0; i < length; i++)
{
points[i].X = m_chart.ViewXY.XAxes[0].DateTimeToAxisValue(snapshotItems[i].STIME);
points[i].Y = snapshotItems[i].AMS;
points[i].Tag = snapshotItems[i].id;
}
if (length > 0)
{
if (m_chart.ViewXY.LineSeriesCursors[0].ValueAtXAxis <points[0].X || m_chart.ViewXY.LineSeriesCursors[0].ValueAtXAxis> points[length - 1].X)
{
m_chart.ViewXY.LineSeriesCursors[0].ValueAtXAxis = points[length / 2].X;
}
}
m_chart.ViewXY.PointLineSeries[0].Points = points;
m_chart.ViewXY.FitView();
}
else
{
viewModel.CurrentSnapshotContract = null;
if (m_chart.ViewXY.PointLineSeries[0].PointCount > 0)
{
m_chart.ViewXY.PointLineSeries[0].Clear();
}
}
m_chart.EndUpdate();
}
catch (Exception ex)
{
_eventAggregator.GetEvent <ThrowExceptionEvent>().Publish(Tuple.Create <string, Exception>("数据回放-报警点趋势-趋势", ex));
m_chart.EndUpdate();
}
}
public SnapshotDataChangedEventArgs(SnapshotAMSContract2 contract)
{
_contract = contract;
}
