/// <summary>
/// To calculate the segments if the pyramid mode is surface
/// </summary>
private void CalculateSurfaceSegments(double sumValues, int count, double gapHeight, List <double> xValues)
{
var toggledYValues = YValues.ToList();
if (ToggledLegendIndex.Count > 0)
{
toggledYValues = GetYValues();
}
currY = 0;
double[] y = new double[count];
double[] height = new double[count];
double preSum = GetSurfaceHeight(0, sumValues);
for (int i = 0; i < count; i++)
{
y[i] = currY;
height[i] = GetSurfaceHeight(currY, Math.Abs(double.IsNaN(toggledYValues[i]) ? 0 : toggledYValues[i]));
currY += height[i] + gapHeight * preSum;
}
double coef = 1 / (currY - gapHeight * preSum);
for (int i = 0; i < count; i++)
{
double currHeight = 0;
if (!double.IsNaN(YValues[i]))
{
currHeight = coef * y[i];
PyramidSegment pyramidSegment = new PyramidSegment(currHeight, coef * height[i], this.ExplodeOffset, this, i == this.ExplodeIndex || this.ExplodeAll ? true : false);
pyramidSegment.Item = ActualData[i];
pyramidSegment.XData = xValues[i];
pyramidSegment.YData = Math.Abs(YValues[i]);
if (ToggledLegendIndex.Contains(i))
{
pyramidSegment.IsSegmentVisible = false;
}
else
{
pyramidSegment.IsSegmentVisible = true;
}
this.Segments.Add(pyramidSegment);
if (AdornmentsInfo != null)
{
Adornments.Add(this.CreateAdornment(this, xValues[i], toggledYValues[i], 0, double.IsNaN(currHeight) ? 1 - height[i] / 2 : currHeight + coef * height[i] / 2));
}
}
}
}
/// <summary>
/// To calculate the segments if the pyramid mode is linear
/// </summary>
private void CalculateLinearSegments(double sumValues, double gapRatio, int count, List <double> xValues)
{
var toggledYValues = YValues.ToList();
if (ToggledLegendIndex.Count > 0)
{
toggledYValues = GetYValues();
}
currY = 0;
double coef = 1d / (sumValues * (1 + gapRatio / (1 - gapRatio)));
for (int i = 0; i < count; i++)
{
double height = 0;
if (!double.IsNaN(YValues[i]))
{
height = coef * Math.Abs(double.IsNaN(toggledYValues[i]) ? 0 : toggledYValues[i]);
PyramidSegment pyramidSegment = new PyramidSegment(currY, height, this.ExplodeOffset, this, i == ExplodeIndex || this.ExplodeAll ? true : false);
pyramidSegment.Item = ActualData[i];
pyramidSegment.XData = xValues[i];
pyramidSegment.YData = Math.Abs(YValues[i]);
if (ToggledLegendIndex.Contains(i))
{
pyramidSegment.IsSegmentVisible = false;
}
else
{
pyramidSegment.IsSegmentVisible = true;
}
this.Segments.Add(pyramidSegment);
currY += (gapRatio / (count - 1)) + height;
if (AdornmentsInfo != null)
{
Adornments.Add(this.CreateAdornment(this, xValues[i], toggledYValues[i], 0, double.IsNaN(currY) ? 1 - height / 2 : currY - height / 2));
Adornments[Segments.Count - 1].Item = ActualData[i];
}
}
}
}
/// <summary>
/// Creates the segments of AreaSeries.
/// </summary>
public override void CreateSegments()
{
List <double> yValues = new List <double>();
bool isGrouped = (ActualXAxis is CategoryAxis && !(ActualXAxis as CategoryAxis).IsIndexed);
List <double> xValues = null;
if (isGrouped)
{
xValues = GroupedXValuesIndexes;
}
else
{
xValues = GetXValues();
}
yValues = YValues.ToList();
if (AdornmentsInfo != null)
{
ClearUnUsedAdornments(this.DataCount);
}
if (isGrouped)
{
if (xValues != null && xValues.Count > 1)
{
Segments.Clear();
Adornments.Clear();
if (Segment == null || Segments.Count == 0)
{
Segment = new AreaSegment(xValues, GroupedSeriesYValues[0] as List <double>, this, ActualData);
Segment.SetData(xValues, GroupedSeriesYValues[0] as List <double>);
Segments.Add(Segment);
}
}
if (AdornmentsInfo != null)
{
AddAreaAdornments(GroupedSeriesYValues[0]);
}
}
else
{
if (xValues != null && xValues.Count > 1)
{
if (Segment == null || Segments.Count == 0)
{
Segment = new AreaSegment(xValues, yValues, this, ActualData);
Segment.SetData(xValues, yValues);
Segments.Add(Segment);
}
else
{
Segment.Item = ActualData;
Segment.SetData(xValues, yValues);
}
}
if (AdornmentsInfo != null)
{
AddAreaAdornments(YValues);
}
}
}