void chaLine_MouseMove(object sender, MouseEventArgs e)
{
ValueOverlay chaLine = sender as ValueOverlay;
var series = dataChart.Series.FirstOrDefault();
if (series == null)
{
return;
}
var position = e.GetPosition(series);
if (((XamDataChart)series.SeriesViewer).Axes.OfType <NumericXAxis>().Any())
{
var xAxis = ((XamDataChart)series.SeriesViewer).Axes.OfType <NumericXAxis>().First();
var yAxis = ((XamDataChart)series.SeriesViewer).Axes.OfType <NumericYAxis>().First();
var viewport = new Rect(0, 0, xAxis.ActualWidth, yAxis.ActualHeight);
var window = series.SeriesViewer.WindowRect;
bool isInverted = xAxis.IsInverted;
ScalerParams param = new ScalerParams(window, viewport, isInverted);
var unscaledX = xAxis.GetUnscaledValue(position.X, param);
foreach (YuMiBaoZiModel data in predictModels)
{
Int16 x = Convert.ToInt16(data.xData);
if (Convert.ToInt16(unscaledX) == x)
{
block.Text = data.predictChaValue.ToString();
}
}
chaLine.Value = unscaledX;
}
}
private void initTimeBar(double timeClip)
{
ValueOverlay timeLine = new ValueOverlay();
timeLine.Axis = (NumericXAxis)dataChart.Axes[2];
timeLine.Brush = new SolidColorBrush(Colors.Red);
timeLine.Thickness = 10;
timeLine.Opacity = 0.5;
timeLine.Value = timeClip;
TextBlock textBlock = new TextBlock();
textBlock.Text = "预测时间轴";
timeLine.ToolTip = textBlock;
timeLine.Visibility = Visibility.Visible;
dataChart.Series.Add(timeLine);
}
private void initMoveTimeBar(double timeClip)
{
ValueOverlay chaLine = new ValueOverlay();
chaLine.Axis = (NumericXAxis)dataChart.Axes[2];
chaLine.Brush = new SolidColorBrush(Colors.Blue);
chaLine.Thickness = 10;
chaLine.Opacity = 0.5;
chaLine.Value = timeClip;
chaLine.MouseEnter += chaLine_MouseEnter;
chaLine.MouseMove += chaLine_MouseMove;
Grid grid = new Grid();
StackPanel stackVer = new StackPanel();
StackPanel stackHor = new StackPanel();
StackPanel stackName = new StackPanel();
stackName.Margin = new Thickness(2);
TextBlock blockName = new TextBlock();
blockName.Text = "差值";
stackName.Children.Add(blockName);
StackPanel stackValue = new StackPanel();
stackValue.Margin = new Thickness(2);
TextBlock blockValue = new TextBlock();
block = blockValue;
stackValue.Children.Add(blockValue);
stackHor.Children.Add(stackName);
stackHor.Children.Add(stackValue);
stackVer.Children.Add(stackHor);
grid.Children.Add(stackVer);
chaLine.ToolTip = grid;
chaLine.Visibility = Visibility.Visible;
dataChart.Series.Add(chaLine);
}