/// <summary>
/// Initializes a new instance of the <see cref="ScatterSegment3D"/> class.
/// </summary>
/// <param name="x1">The X1 Value</param>
/// <param name="y1">The Y1 Value</param>
/// <param name="startDepth">The Start Depth</param>
/// <param name="endDepth">The End Depth</param>
/// <param name="scatterSeries3D">The Scatter Series</param>
public ScatterSegment3D(double x1, double y1, double startDepth, double endDepth, ScatterSeries3D scatterSeries3D)
{
Series = scatterSeries3D;
SetData(x1, y1, startDepth, endDepth);
}
/// <summary>
/// Updates the segments based on its data point value. This method is not
/// intended to be called explicitly outside the Chart but it can be overridden by
/// any derived class.
/// </summary>
/// <param name="transformer">Represents the view port of chart control.(refer <see cref="IChartTransformer"/>)</param>
public override void Update(IChartTransformer transformer)
{
Rect rect;
double x, y, width, height;
if (transformer == null)
{
return;
}
var cartesianTransformer = transformer as ChartTransform.ChartCartesianTransformer;
if (cartesianTransformer == null)
{
return;
}
if (double.IsNaN(YData) && !Series.ShowEmptyPoints)
{
return;
}
ScatterSeries3D series = (Series as ScatterSeries3D);
var xBase = cartesianTransformer.XAxis.IsLogarithmic ? ((LogarithmicAxis3D)cartesianTransformer.XAxis).LogarithmicBase : 1;
var yBase = cartesianTransformer.YAxis.IsLogarithmic ? ((LogarithmicAxis3D)cartesianTransformer.YAxis).LogarithmicBase : 1;
var xIsLogarithmic = cartesianTransformer.XAxis.IsLogarithmic;
var yIsLogarithmic = cartesianTransformer.YAxis.IsLogarithmic;
var xValue = xIsLogarithmic ? Math.Log(X, xBase) : X;
var yValue = yIsLogarithmic ? Math.Log(Y, yBase) : Y;
var yStart = cartesianTransformer.YAxis.VisibleRange.Start;
var yEnd = cartesianTransformer.YAxis.VisibleRange.End;
var xStart = cartesianTransformer.XAxis.VisibleRange.Start;
var xEnd = cartesianTransformer.XAxis.VisibleRange.End;
var zSeries = this.Series as XyzDataSeries3D;
bool isZAxis = cartesianTransformer.ZAxis != null && zSeries.ActualZAxis != null && (zSeries as XyzDataSeries3D).ActualZValues != null;
Point tlpoint = new Point(0, 0);
double frontDepth = 0d;
double backDepth = 0d;
if (isZAxis)
{
var z1value = startDepth;
var z2value = endDepth;
var depthDelta = (this.Series as ScatterSeries3D).GetSegmentDepth((this.Series.ActualArea as SfChart3D).ActualDepth).Delta / 2;
var zStart = cartesianTransformer.ZAxis.VisibleRange.Start;
var zEnd = cartesianTransformer.ZAxis.VisibleRange.End;
var zIsLogarithmic = cartesianTransformer.ZAxis.IsLogarithmic;
var zBase = zIsLogarithmic ? ((LogarithmicAxis3D)cartesianTransformer.ZAxis).LogarithmicBase : 1;
var actualZ1 = zIsLogarithmic ? Math.Log(z1value, zBase) : z1value;
var actualZ2 = zIsLogarithmic ? Math.Log(z2value, zBase) : z2value;
if (!(actualZ1 <= zEnd && actualZ2 >= zStart))
{
return;
}
var zLogStart = zIsLogarithmic ? Math.Pow(zBase, zStart) : zStart;
var zLogEnd = zIsLogarithmic ? Math.Pow(zBase, zEnd) : zEnd;
var tldpoint = cartesianTransformer.TransformToVisible3D(xValue, yValue, actualZ1 <zStart?zLogStart : actualZ1> zEnd ? zLogEnd : z1value);
tlpoint = new Point(tldpoint.X, tldpoint.Y);
frontDepth = (z1value == zStart) ? tldpoint.Z : tldpoint.Z - ScatterHeight / 2 < tldpoint.Z - depthDelta ? tldpoint.Z - depthDelta : tldpoint.Z - ScatterHeight / 2;
backDepth = (z2value == zEnd) ? tldpoint.Z : tldpoint.Z + ScatterHeight / 2 > tldpoint.Z + depthDelta ? tldpoint.Z + depthDelta : tldpoint.Z + ScatterHeight / 2;
}
else
{
tlpoint = transformer.TransformToVisible(X, Y);
}
if (!series.Area.SeriesClipRect.Contains(tlpoint) &&
((xValue != xEnd && xValue != xStart) || (yValue != yEnd && yValue != yStart)) && !(series.IsTransposed))
{
return;
}
if (series.ScatterHeight <= 0 || series.ScatterWidth <= 0)
{
return;
}
x = (xValue == (series.IsTransposed ? xEnd : xStart)) ? tlpoint.X : tlpoint.X - (series.IsTransposed ? ScatterHeight / 2 : ScatterWidth / 2);
y = (yValue == (series.IsTransposed ? yStart : yEnd)) ? tlpoint.Y : tlpoint.Y - (series.IsTransposed ? ScatterWidth / 2 : ScatterHeight / 2);
width = (xValue == xStart) || (xValue == xEnd) ? ScatterWidth / 2 : ScatterWidth;
height = (yValue == yStart) || (yValue == yEnd) ? ScatterHeight / 2 : ScatterHeight;
rect = new Rect(x, y, width, height);
if (!series.IsTransposed)
{
// Clipping segment of nearest range point
if (!Series.ActualArea.SeriesClipRect.Contains(new Point(x, y)))
{
rect = new Rect(x, Series.ActualArea.SeriesClipRect.Top, width, height + y);
}
if (!Series.ActualArea.SeriesClipRect.Contains(new Point(rect.Left, rect.Bottom)))
{
rect = new Rect(x, y, width, Math.Abs(height + (Series.ActualArea.SeriesClipRect.Bottom - rect.Bottom) > ScatterHeight ? height : height + (Series.ActualArea.SeriesClipRect.Bottom - rect.Bottom)));
}
if (!Series.ActualArea.SeriesClipRect.Contains(new Point(rect.Left, rect.Top)))
{
var modifiedWidth = Math.Abs(width - (Series.ActualXAxis.RenderedRect.X - rect.X));
rect = new Rect(Series.ActualXAxis.RenderedRect.X, y, modifiedWidth, rect.Height);
}
if (!Series.ActualArea.SeriesClipRect.Contains(new Point(rect.Left + rect.Width, rect.Top)))
{
var modifiedWidth = Math.Abs(rect.Width + (Series.ActualArea.SeriesClipRect.Right - rect.Right));
rect = new Rect(rect.X, rect.Y, modifiedWidth, rect.Height);
}
}
else
{
rect = new Rect(x, y, height, width);
if (x < tlpoint.X && xValue == xStart && yValue == yStart)
{
rect = new Rect(tlpoint.X, y, height, width);
}
if (y < tlpoint.Y && yValue == yStart)
{
rect = new Rect(tlpoint.X, tlpoint.Y, height, width);
}
if (y == tlpoint.Y && yValue == yStart)
{
rect = new Rect(tlpoint.X, tlpoint.Y - ScatterWidth / 2, height, width);
}
if (y < tlpoint.Y && xValue == xEnd)
{
rect = new Rect(tlpoint.X, tlpoint.Y, height, width);
}
if (x == tlpoint.X && xValue == xEnd)
{
rect = new Rect(tlpoint.X, tlpoint.Y, height, width);
}
if (x == tlpoint.X && xValue == xEnd && yValue != yStart)
{
rect = new Rect(tlpoint.X - ScatterHeight / 2, tlpoint.Y, height, width);
}
}
var area = Series.ActualArea as SfChart3D;
Vector3D tlfVector = new Vector3D(0, 0, 0);
Vector3D brbVector = new Vector3D(0, 0, 0);
if (isZAxis)
{
tlfVector = new Vector3D(rect.Left, rect.Top, frontDepth);
brbVector = new Vector3D(rect.Right, rect.Bottom, backDepth);
}
else
{
tlfVector = new Vector3D(rect.Left, rect.Top, startDepth);
brbVector = new Vector3D(rect.Right, rect.Bottom, startDepth + ScatterHeight > endDepth ? endDepth : startDepth + ScatterHeight);
}
if (plans == null)
{
plans = Polygon3D.CreateBox(
tlfVector,
brbVector,
this,
series.Segments.IndexOf(this),
area.Graphics3D,
Stroke,
Interior,
StrokeThickness,
Series.IsActualTransposed);
}
else
{
Polygon3D.UpdateBox(plans, tlfVector, brbVector, Interior, Visibility.Visible);
}
}