using Imsl.Chart2D;
using System;
using System.Drawing;

public class SampleContour : FrameChart {

    public SampleContour() {
        Chart chart = this.Chart;
        AxisXY axis = new AxisXY(chart);

        double[] xGrid = {0, 0.2, 0.4, 0.6, 0.8, 1.0};
        double[] yGrid = {0, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 1.0};
        double[,] zData = new double[xGrid.Length, yGrid.Length];
        for (int i = 0;  i < xGrid.Length;  i++) {
            for (int j = 0;  j < yGrid.Length;  j++) {
                double x = xGrid[i];
                double y = yGrid[j];
                zData[i,j] = Math.Exp(-x) * Math.Cos(x-y);
            }
        }
        double[] level = {0.4, 0.6, 0.8};
        Contour contour = new Contour(axis, xGrid, yGrid, zData, level);
        contour.ContourLegend.IsVisible = true;
        contour.GetContourLevel(0).FillColor = Color.Blue;
        contour.GetContourLevel(1).FillColor = Color.Yellow;
        contour.GetContourLevel(2).FillColor = Color.Green;
        contour.GetContourLevel(3).FillColor = Color.Red;

        contour.GetContourLevel(0).LineColor = Color.DarkBlue;
        contour.GetContourLevel(1).LineColor = Color.Orange;
        contour.GetContourLevel(2).LineColor = Color.DarkGreen;
        contour.GetContourLevel(3).LineColor = Color.DarkRed;
    }

    public static void Main(string[] argv) {
        System.Windows.Forms.Application.Run(new SampleContour());
    }
}