public PointNS GetPlotCoordinateForItem(object item, int itemIndex)
{
double x;
if (!this.Owner.IsXAxisCategory)
{
x = GetXValueForItem(item);
}
else
{
x = itemIndex + 0.5;
}
var y = GetAdjustYValueForItem(item, itemIndex);
var pt = new PointNS((x - this.PlottingXValueRange.Min) * this.XPixelPerUnit,
(y - this.PlottingYValueRange.Min) * this.YPixelPerUnit);
if (pt.Y < 0)
{
throw new NotImplementedException(this.DataContext.ToString());
}
return(pt);
}
internal void UpdateScatterCoordinate(object item, PointNS coordinate)
{
var scatter = (Scatter)this.PART_ScatterItemsControl?.TryGetChildForItem(item);
if (scatter != null)
{
scatter.Coordinate = coordinate;
}
}
internal void UpdateBarCoordinateAndHeight(object item, PointNS coordinate, double previousYCoordinate)
{
var barItem = (BarItem)this.PART_BarItemsControl?.TryGetChildForItem(item);
if (barItem != null)
{
var barHeight = coordinate.Y - previousYCoordinate;
barItem.SetBarHeight(barHeight);
barItem.Coordinate = coordinate;
}
}
private void UpdateAdjustedCoordinate()
{
if (this.Coordinate.IsEmpty())
{
return;
}
PointNS offset = GetOffsetForSizeChangedOverride();
if (offset.IsEmpty())
{
return;
}
var x = this.Coordinate.X + offset.X;
var y = this.Coordinate.Y + offset.Y;
//if (!double.IsInfinity(x))
//{
// Canvas.SetLeft(this, x);
//}
//if (!double.IsInfinity(y))
//{
// Canvas.SetTop(this, y);
//}
var translateTransform = this.RenderTransform as TranslateTransform;
if (translateTransform == null)
{
this.RenderTransform = new TranslateTransform(x, y);
}
else
{
translateTransform.Y = y;
translateTransform.X = x;
}
}
private static PointNS[] ConvertToStepPoints(PointNS[] points)
{
if (points == null)
{
return(null);
}
var arr = new PointNS[points.Length + (points.Length - 1)];
int j = 0;
for (int i = 0; i < points.Length; i++)
{
arr[j++] = points[i];
if (i < points.Length - 1)
{
arr[j++] = new PointNS(points[i + 1].X, points[i].Y);
}
}
return(arr);
}
public bool Equals(PointNS value)
{
return(PointNS.Equals(this, value));
}
public override bool Equals(object o)
{
return(o != null && o is PointNS point2 && PointNS.Equals(this, point2));
}
public static bool Equals(PointNS point1, PointNS point2)
{
return(point1.X.Equals(point2.X) && point1.Y.Equals(point2.Y));
}
private void OnCoordinateChanged(PointNS newValue)
{
UpdateAdjustedCoordinate();
}
public static Point ToPoint(this PointNS source)
{
return(new Point(source.X, source.Y));
}