Creating 4D Charts

1. Add the grid dataset (regular or irregular) data to the chart. See 3D Data for information on adding data to a chart.

2. Add the contour data to the chart. This data will be used to derive the zoning and contouring colors for the fourth dimension of chart information. The contour data is defines by ContourData property of Chart3DData object.

' 1 step

' Create dataset with sample data

Dim rnd As Random = New Random()

Dim i, j As Integer

Dim z(20, 20) As Double

For i = 0 To 20

  For j = 0 To 20

    z(i,j) = 200 - ((i - 10) * (i - 10) + (j - 10) * (j - 10))

Next j

Next i

Dim gridset As Chart3DDataSetGrid = New Chart3DDataSetGrid(0, 0, 1, 1, z)

C1Chart3D1.ChartGroups(0).ChartData.Set = gridset

' 2 step

' Create 4-dimension values array and put it to the chart

Dim contour(20, 20) As Double

For i = 0 To 20

  For j = 0 To 20

    contour(i, j) = rnd.NextDouble()

Next j

Next i

C1Chart3D1.ChartGroups(0).ChartData.ContourData = contour

' 3 step

' Set zoned chart

C1Chart3D1.ChartGroups(0).Contour.IsZoned = True

C1Chart3D1.ChartGroups(0).Contour.NumLevels = 20

C1Chart3D1.ChartGroups.ContourStyles.ColorSet = ColorSetEnum.RevRainbow

// 1 step

// Create dataset with sample data

Random rnd = new Random();

int i, j;

double[,] z = new double[21, 21];

for( i=0; i<z.GetLength(0); i++)

  for( j=0; j<z.GetLength(1); j++)

    z[ i, j] = 200 - (( i-10)*(i-10) +  (j-10)*(j-10));

Chart3DDataSetGrid gridset=new Chart3DDataSetGrid(0,0,1,1,z);

C1Chart3D1.ChartGroups[0].ChartData.Set = gridset;

// 2 step

// Create 4-dimension values array and put it to the chart

double[,] contour = new double[21, 21];

for( i=0; i<contour.GetLength(0); i++)

  for( j=0; j<contour.GetLength(1); j++)

    contour[ i, j] = rnd.NextDouble();

C1Chart3D1.ChartGroups[0].ChartData.ContourData = contour;

// 3 step

// Set zoned chart

C1Chart3D1.ChartGroups[0].Contour.IsZoned = true;

C1Chart3D1.ChartGroups[0].Contour.NumLevels = 20;

C1Chart3D1.ChartGroups.ContourStyles.ColorSet = ColorSetEnum.RevRainbow;

In Bar charts, each bar is displayed as a single solid color according to the zoned height of the bar:

In Surface charts, the fourth dimension is displayed as zoning and contouring colors.