/// <summary>
/// Gets the range of {x, y} plot coordinates that corresponds to all the markers shown on the plot.
/// </summary>
/// <returns></returns>
protected override DataRect ComputeBounds()
{
if (!areContentBoundsValid)
{
IValueConverter boundsConverter = GetDataBoundsConverter(MarkerTemplate);
SyncMarkerViewModels();
DataRect[] rects = new DataRect[models.Count];
for (int i = 0; i < models.Count; i++)
{
rects[i] = (DataRect)boundsConverter.Convert(models[i], typeof(DataRect), null, CultureInfo.InvariantCulture);
}
DataRect union = rects.Length > 0 ? rects[0] : new DataRect(-0.5, -0.5, 0.5, 0.5);
for (int i = 1; i < rects.Length; i++)
{
union.Surround(rects[i]);
}
if (union.XMax == union.XMin)
{
union = new DataRect(union.XMin - 0.5, union.YMin, union.XMin - 0.5 + union.Width + 1.0, union.YMin + union.Height);
}
if (union.YMax == union.YMin)
{
union = new DataRect(union.XMin, union.YMin - 0.5, union.XMin + union.Width, union.YMin - 0.5 + union.Height + 1.0);
}
localPlotBounds = union;
areContentBoundsValid = true;
}
return(localPlotBounds);
}
/// <summary>
/// Computes minimal plot rectangle which contains plot rectangles of current <see cref="PlotBase"/> instance and of all child <see cref="PlotBase"/> instances
/// </summary>
/// <returns>Minimal plot rectangle which contains plot rectangles of current <see cref="PlotBase"/> instance and of all child <see cref="PlotBase"/> instances</returns>
protected DataRect AggregateBounds()
{
DataRect result = ComputeBounds();
foreach (var item in dependantsField)
{
result.Surround(item.AggregateBounds());
}
return(result);
}