/// <summary>
/// Draws a All Stacked column under a XValue with a particular dtrawingIndex
/// </summary>
/// <param name="xValue">XValue</param>
/// <param name="plotGroup">PlotGroup reference</param>
/// <param name="columnCanvas">Parent canvas of StackedColumn visuals</param>
/// <param name="labelCanvas">Parent canvas of StackedColumn labels</param>
/// <param name="drawingIndex">Drawing index of the DataSeries</param>
/// <param name="widthPerColumn">Width par each column</param>
/// <param name="maxColumnWidth">Max width of a Column</param>
/// <param name="limitingYValue">Limiting value</param>
/// <param name="depth3d">3d depth for 3d charts</param>
/// <param name="animationEnabled">Whether animation for chart is enabled</param>
private static void DrawStackedColumnsAtXValue(RenderAs chartType, Double xValue, PlotGroup plotGroup, Canvas columnCanvas, Canvas labelCanvas, Double drawingIndex, Double widthPerColumn, Double maxColumnWidth, Double limitingYValue, Double depth3d, Boolean animationEnabled)
{
Double top;
Double prevSum = 0;
Int32 positiveIndex = 1, negativeIndex = 1;
Boolean isTopOFStack;
DataPoint dataPointAtTopOfStack = null;
Double columnHeight = 0;
Double absoluteSum = 0;
Double left = Graphics.ValueToPixelPosition(0, columnCanvas.Width, (Double)plotGroup.AxisX.InternalAxisMinimum, (Double)plotGroup.AxisX.InternalAxisMaximum, xValue) + drawingIndex * widthPerColumn - (maxColumnWidth / 2);
Double bottom = Graphics.ValueToPixelPosition(columnCanvas.Height, 0, (Double)plotGroup.AxisY.InternalAxisMinimum, (Double)plotGroup.AxisY.InternalAxisMaximum, limitingYValue);
if (plotGroup.XWiseStackedDataList[xValue].Positive.Count > 0)
{
dataPointAtTopOfStack = plotGroup.XWiseStackedDataList[xValue].Positive.Last();
}
if (chartType == RenderAs.StackedColumn100)
{
absoluteSum = plotGroup.XWiseStackedDataList[xValue].AbsoluteYValueSum;
}
Double animationBeginTime = 0.4;
Double animationTime = 1.0 / plotGroup.XWiseStackedDataList[xValue].Positive.Count;
// Plot positive values
foreach (DataPoint dataPoint in plotGroup.XWiseStackedDataList[xValue].Positive)
{
dataPoint.Parent.Faces = new Faces()
{
Visual = columnCanvas, LabelCanvas = labelCanvas
};
if (!(Boolean)dataPoint.Enabled || Double.IsNaN(dataPoint.InternalYValue))
{
continue;
}
isTopOFStack = (dataPoint == dataPointAtTopOfStack);
if (chartType == RenderAs.StackedColumn)
{
top = Graphics.ValueToPixelPosition(columnCanvas.Height, 0, (Double)plotGroup.AxisY.InternalAxisMinimum, (Double)plotGroup.AxisY.InternalAxisMaximum, dataPoint.InternalYValue + prevSum);
prevSum += dataPoint.InternalYValue;
columnHeight = Math.Abs(top - bottom);
}
else // if (chartType == RenderAs.StackedColumn100)
{
Double percentYValue = 0;
if (absoluteSum != 0)
{
percentYValue = (dataPoint.InternalYValue / absoluteSum * 100);
}
top = Graphics.ValueToPixelPosition(columnCanvas.Height, 0, (Double)plotGroup.AxisY.InternalAxisMinimum, (Double)plotGroup.AxisY.InternalAxisMaximum, percentYValue + prevSum);
columnHeight = Math.Abs(top - bottom);
prevSum += percentYValue;
}
if (chartType == RenderAs.StackedColumn || chartType == RenderAs.StackedColumn100)
{
CreateStackedColumnVisual(true, columnCanvas, labelCanvas, dataPoint,
isTopOFStack, left, ref top, ref bottom, widthPerColumn, columnHeight, depth3d,
ref positiveIndex, animationEnabled, animationBeginTime);
}
else if (chartType == RenderAs.StackedColumn || chartType == RenderAs.StackedColumn100)
{
BarChart.CreateBarDataPointVisual(dataPoint, labelCanvas, columnCanvas, dataPoint.InternalYValue >= 0, widthPerColumn, depth3d, false);
}
animationBeginTime += animationTime;
positiveIndex++;
}
prevSum = 0;
top = Graphics.ValueToPixelPosition(columnCanvas.Height, 0, (Double)plotGroup.AxisY.InternalAxisMinimum, (Double)plotGroup.AxisY.InternalAxisMaximum, limitingYValue);
dataPointAtTopOfStack = null;
if (plotGroup.XWiseStackedDataList[xValue].Negative.Count > 0)
{
dataPointAtTopOfStack = plotGroup.XWiseStackedDataList[xValue].Negative.Last();
animationTime = 1.0 / plotGroup.XWiseStackedDataList[xValue].Negative.Count;
animationBeginTime = 0.4;
}
// Plot negative values
foreach (DataPoint dataPoint in plotGroup.XWiseStackedDataList[xValue].Negative)
{
dataPoint.Parent.Faces = new Faces()
{
Visual = columnCanvas, LabelCanvas = labelCanvas
};
if (!(Boolean)dataPoint.Enabled || Double.IsNaN(dataPoint.InternalYValue))
{
continue;
}
isTopOFStack = (dataPoint == dataPointAtTopOfStack);
if (chartType == RenderAs.StackedColumn)
{
bottom = Graphics.ValueToPixelPosition(columnCanvas.Height, 0, (Double)plotGroup.AxisY.InternalAxisMinimum, (Double)plotGroup.AxisY.InternalAxisMaximum, dataPoint.InternalYValue + prevSum);
prevSum += dataPoint.InternalYValue;
columnHeight = Math.Abs(top - bottom);
}
else // if (chartType == RenderAs.StackedColumn100)
{
Double percentYValue = (dataPoint.InternalYValue / absoluteSum * 100);
bottom = Graphics.ValueToPixelPosition(columnCanvas.Height, 0, (Double)plotGroup.AxisY.InternalAxisMinimum, (Double)plotGroup.AxisY.InternalAxisMaximum, percentYValue + prevSum);
columnHeight = Math.Abs(top - bottom);
prevSum += percentYValue;
}
CreateStackedColumnVisual(false, columnCanvas, labelCanvas, dataPoint,
isTopOFStack, left, ref top, ref bottom, widthPerColumn, columnHeight, depth3d,
ref negativeIndex, animationEnabled, animationBeginTime);
animationBeginTime += animationTime;
negativeIndex--;
}
}