public void ZoomY()
{
if (XAxis == null)
{
return;
}
foreach (var group in _sections.SelectMany(x => x).Where(x => x != null).GroupBy(x => x.Series.YAxisKey))
{
var axisMinMax = new MinMaxTracker();
foreach (var wrapper in group)
{
var minMax = wrapper.GetMinMaxY(XAxis.ActualMinimum, XAxis.ActualMaximum);
if (!double.IsNaN(minMax.Min) && !double.IsNaN(minMax.Max))
{
axisMinMax.Track(minMax.Min, minMax.Max);
}
}
if (!double.IsNaN(axisMinMax.Min) && !double.IsNaN(axisMinMax.Max))
{
double delta = Math.Abs(axisMinMax.Max - axisMinMax.Min) * 0.02;
Axes.First(x => x.Key == group.Key).Zoom(axisMinMax.Min - delta, axisMinMax.Max + delta);
}
}
}
private void RebuildSeries()
{
_xTracker.Reset();
Series.Clear();
foreach (var axis in Axes.Where(x => x.Position == AxisPosition.Left).ToList())
{
Axes.Remove(axis);
}
var trueSections = _sections.Where(x => x.Any(s => s != null)).ToList();
double sectionHeight = 1.0d / trueSections.Count;
for (int i = 0; i < trueSections.Count; i++)
{
string axisKey = Guid.NewGuid().ToString();
var axis = YAxisFactory();
axis.StartPosition = sectionHeight * i;
axis.EndPosition = sectionHeight * i + sectionHeight * (i == trueSections.Count - 1 ? 1.0 : 0.9);
axis.Key = axisKey;
Axes.Add(axis);
foreach (var series in trueSections[i].Where(x => x != null))
{
series.Series.YAxisKey = axisKey;
Series.Add(series.Series);
}
}
((IPlotModel)this).Update(true);
foreach (var series in Series.OfType <XYAxisSeries>())
{
_xTracker.Track(series.MinX);
_xTracker.Track(series.MaxX);
}
}
public void ZoomX()
{
if (XAxis == null)
{
return;
}
var tracker = new MinMaxTracker();
foreach (var series in FlatSeries)
{
var minMax = series.GetMinMaxX();
if (minMax != null)
{
tracker.Track(minMax.Value.Min, minMax.Value.Max);
}
}
double delta = Math.Abs(tracker.Max - tracker.Min) * 0.02;
XAxis.Zoom(tracker.Min - delta, tracker.Max + delta);
}
public override MinMaxTracker GetMinMaxY(double startX, double endX)
{
var result = new MinMaxTracker();
if (_points.Count == 0)
{
return(result);
}
GotoX(startX);
PointWrapper point;
int idx = _curIdx;
while (idx < _points.Count && (point = _pointWrapperFunc(_points[idx])).X < endX)
{
result.Track(point.MaxY, point.MinY);
idx++;
}
return(result);
}
