dataminning2.DBScanGraphplot.java Source code

Introduction

Here is the source code for dataminning2.DBScanGraphplot.java

Source

/*
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package dataminning2;

import java.awt.*;
import java.awt.*;
import java.awt.geom.*;
import javax.swing.*;
import javax.swing.JPanel;
import org.apache.commons.math3.linear.AnyMatrix;

/**
 *
 * @author SuperUser
 */
public class DBScanGraphplot extends JPanel {

    double[] dataX = null;
    double[] dataY = null;
    double[][] data = null;

    public DBScanGraphplot(double[][] Data) {
        dataX = new double[Data.length];
        dataY = new double[Data.length];

        for (int i = 0; i < Data.length; i++) {
            dataX[i] = Data[i][0];
            dataY[i] = Data[i][1];
            data = Data;
        }

    }

    final int PAD = 20;

    protected void paintComponent(Graphics g) {
        super.paintComponent(g);

        Graphics2D g2 = (Graphics2D) g;
        g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
        int w = getWidth();
        int h = getHeight();
        // Draw ordinate.
        g2.draw(new Line2D.Double(PAD, PAD, PAD, h - PAD));
        // Draw abcissa.
        g2.draw(new Line2D.Double(PAD, h - PAD, w - PAD, h - PAD));
        double xInc = (double) (w - 2 * PAD) / (data.length - 1);
        double scale = (double) (h - 2 * PAD) / 88;
        // Mark data points.
        g2.setPaint(Color.red);
        int length1 = 0;
        int length2 = data.length / 3;
        for (int i = 0; i < data.length; i++) {
            double x = PAD + i * dataX[i];
            double y = h - PAD - scale * dataY[i];
            g2.fill(new Ellipse2D.Double(x - 2, y - 2, 4, 4));
        }

    }

    private int getMax() {
        int max = -Integer.MAX_VALUE;
        for (int i = 0; i < data.length; i++) {
            if (dataY[i] > max)
                max = (int) dataY[i];
        }
        return max;
    }

}