// Decompiled by DJ v3.7.7.81 Copyright 2004 Atanas Neshkov  Date: 7/18/2005 5:13:55 PM
// Home Page : http://members.fortunecity.com/neshkov/dj.html  - Check often for new version!
// Decompiler options: packimports(3) 

package org.jfree.chart.demo;

import org.jfree.data.general.DatasetChangeEvent;
import org.jfree.data.xy.AbstractXYDataset;
import org.jfree.data.xy.XYDataset;

public class SampleXYDataset extends AbstractXYDataset
    implements XYDataset
{

    public SampleXYDataset()
    {
        translate = 0.0D;
    }

    public double getTranslate()
    {
        return translate;
    }

    public void setTranslate(double d)
    {
        translate = d;
        notifyListeners(new DatasetChangeEvent(this, this));
    }

    public Number getX(int i, int j)
    {
        return new Double(-10D + translate + (double)j / 10D);
    }

    public Number getY(int i, int j)
    {
        if(i == 0)
            return new Double(Math.cos(-10D + translate + (double)j / 10D));
        else
            return new Double(2D * Math.sin(-10D + translate + (double)j / 10D));
    }

    public int getSeriesCount()
    {
        return 2;
    }

    public Comparable getSeriesKey(int i)
    {
        if(i == 0)
            return "y = cosine(x)";
        if(i == 1)
            return "y = 2*sine(x)";
        else
            return "Error";
    }

    public int getItemCount(int i)
    {
        return 200;
    }

    private double translate;
}