import com.imsl.chart.*;
import java.awt.Color;

public class SampleBarLegend extends JFrameChart {   
    public SampleBarLegend() {
        Chart chart = getChart();
        AxisXY axis = new AxisXY(chart);
        chart.getLegend().setPaint(true);
        // y is a 2 by 3 by 4 array
        double y[][][] = {
            {{4,2,3,9},{8,4,2,3},{1,5,3,8}},
            {{6,7,5,2},{4,1,7,2},{8,5,6,1}}
        };
        Bar bar = new Bar(axis, y);
        bar.setBarType(Bar.BAR_TYPE_VERTICAL);
        bar.setLabels(new String[]{"A","B","C","D"});
        // group 0 - shades of red
        bar.getBarSet(0,0).setTitle("Red");
        bar.getBarSet(0,0).setFillColor("Red");
        bar.getBarSet(1,0).setTitle("Dark Red");
        bar.getBarSet(1,0).setFillColor("DarkRed");
        // group 1 - shades of blue
        bar.getBarSet(0,1).setTitle("Blue");
        bar.getBarSet(0,1).setFillColor("Blue");
        bar.getBarSet(1,1).setTitle("Light Blue");
        bar.getBarSet(1,1).setFillColor("LightBlue");
        // group 2 - shades of gray
        bar.getBarSet(0,2).setTitle("Gray");
        bar.getBarSet(0,2).setFillColor("Gray");
        bar.getBarSet(1,2).setTitle("Light Gray");
        bar.getBarSet(1,2).setFillColor("LightGray");
    }
    
    public static void main(String argv[]) {
        new SampleBarLegend().setVisible(true);
    }
}