private void Setdata(Chart3D c3d, int fx, double density, double minX, double maxX, double minY, double maxY, Point3[,] sP, Point3[,] P)
{
//set the lower/upper bound with offset
c3d.C3Axes.XMin = (float)minX - (float)(0.2 * (Function.upperP(this.fx) - Function.lowerP(this.fx)));
c3d.C3Axes.XMax = (float)maxX + (float)(0.2 * (Function.upperP(this.fx) - Function.lowerP(this.fx)));
c3d.C3Axes.YMin = (float)minY - (float)(0.2 * (Function.upperP(this.fx) - Function.lowerP(this.fx)));
c3d.C3Axes.YMax = (float)maxY + (float)(0.2 * (Function.upperP(this.fx) - Function.lowerP(this.fx)));
c3d.C3Axes.XTick = (float)(0.25 * (maxX - minX));
c3d.C3Axes.YTick = (float)(0.25 * (maxY - minY));
c3d.C3DataSeries.XDataMin = c3d.C3Axes.XMin;
c3d.C3DataSeries.YDataMin = c3d.C3Axes.YMin;
//set space between points for surface plotting
c3d.C3DataSeries.XSpacing = (float)(density * (maxX - minX));
c3d.C3DataSeries.YSpacing = (float)(density * (maxY - minY));
c3d.C3DataSeries.XNumber = Convert.ToInt16((c3d.C3Axes.XMax -
c3d.C3Axes.XMin) / c3d.C3DataSeries.XSpacing) + 1;
c3d.C3DataSeries.YNumber = Convert.ToInt16((c3d.C3Axes.YMax -
c3d.C3Axes.YMin) / c3d.C3DataSeries.YSpacing) + 1;
P = new Point3[c3d.C3DataSeries.XNumber,
c3d.C3DataSeries.YNumber];
minf = +1e13;
maxf = -1e13;
//calculate necessary points for surface plotting
for (int i = 0; i < c3d.C3DataSeries.XNumber; i++)
{
for (int j = 0; j < c3d.C3DataSeries.YNumber; j++)
{
float x = c3d.C3DataSeries.XDataMin +
i * c3d.C3DataSeries.XSpacing;
float y = c3d.C3DataSeries.YDataMin +
j * c3d.C3DataSeries.YSpacing;
double zz = 0;
double[] point = { x, y };
zz = Function.Test_Function(fx, point);
if (minf > zz)
{
minf = zz;
}
if (maxf < zz)
{
maxf = zz;
}
float z = (float)zz;
P[i, j] = new Point3(x, y, z, 1);
}
}
c3d.C3Axes.ZMin = (float)minf;
c3d.C3Axes.ZMax = (float)maxf;
c3d.C3Axes.ZTick = (float)(0.25 * (maxf - minf));
c3d.C3DataSeriesSupport.PointArray = P;
c3d.C3DataSeries.PointArray = sP;
}
private void Draw3DFunction(Chart3D c3d, int mode, int fx, double density, double minX, double maxX, double minY, double maxY, Point3[,] sP, Point3[,] P)
{
c3d.C3DrawChart.CMap = cm.Jet(); //select theme for surface plotting
c3d.C3DrawChart.ChartType = DrawChart.ChartTypeEnum.Scatter3D; //select chart type
c3d.C3ChartStyle.IsColorBar = true;
c3d.C3Labels.Title = "";
c3d.C3DataSeries.LineStyle.IsVisible = false;
c3d.mode = mode; //select drawing mode
Setdata(c3d, fx, density, minX, maxX, minY, maxY, sP, P);
}
public Form1()
{
InitializeComponent();
chart = new Chart3D(sg);
}