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Thread: DBSCAN connectivity with database MYSQL

  1. #1
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    Default DBSCAN connectivity with database MYSQL

    The image below is when i executed my Dbscan code in ECLIPSE and got output like this when i put input as...(minimum distance=2)(threshold distance=4) and (x,y)= (0,1)(0,2)(0,3)(0,4)(12,1)(12,2)(12,3)(12,4)...


    i tried doing execute code my own again and finally got the result like this IMAGE attached below. but now i need to learn connectivity with database in MYSQL....??
    Attached Images Attached Images


  2. #2
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    Default Re: DBSCAN connectivity with database MYSQL

    what is your question?
    You want to learn JDBC?? there are lot of tutorials available out there...

  3. #3
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    Default Re: DBSCAN connectivity with database MYSQL

    these are codes i created and now i want to show connectivity to MYSQL. but unable to do.

    GUI.JAVA

    package dbscan;
     
    import java.awt.*;
    import java.awt.event.*;
    import java.util.*;
    import java.util.List;
     
    //import javax.swing.*;
    import javax.swing.BorderFactory;
    import javax.swing.Box;
    import javax.swing.BoxLayout;
    import javax.swing.ImageIcon;
    import javax.swing.JButton;
    import javax.swing.JFrame;
    import javax.swing.JLabel;
    import javax.swing.JPanel;
    import javax.swing.JScrollPane;
    import javax.swing.JTextArea;
    import javax.swing.JTextField;
    import java.util.Timer;
     
    public class Gui {
     
    public static int minpoints;
    public static int tdistance;
    public static Boolean a;
    public static int x1;
    public static int y1;
    public static int x2;
    public static int y2;
    public static Vector<Point> hset = new Vector<Point>();
    public static Vector<List> trl = new Vector<List>();
    static ArrayList<Point> temp =new ArrayList<Point>();
    private final static String newline = "\n";
    static Boolean Y = false;
     
    final static JTextField tfx = new JTextField(4);
    final static JTextField tfy = new JTextField(4);
    final static JLabel status = new JLabel(".");
    final static JLabel counter = new JLabel("Number of Points-" + hset.size());
    /*
    * FRAME
    */
    static JFrame j1 = new JFrame("DBscan");
     
    static CardLayout card =new CardLayout();
    static JPanel wrap =new JPanel(card);
     
    public static void makeGui() {
     
    j1.add(wrap);
    j1.setBounds(250, 50, 800, 600);
    j1.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    j1.setVisible(true);
     
    final JTextArea pta = new JTextArea(); pta.setEditable(false);
    final JTextArea cta = new JTextArea(); cta.setEditable(false);
    cta.setBorder(BorderFactory.createLineBorder(Color .black));
     
    MenuBar mbr =new MenuBar();
    Menu file =new Menu("File");
    MenuItem exit = new MenuItem("Exit");
    file.add(exit);
    mbr.add(file);
     
    j1.setMenuBar(mbr);
     
    exit.addActionListener(new ActionListener() {
     
    @Override
    public void actionPerformed(ActionEvent ae) {
    String str ="Exit";
    if(str.equals(ae.getActionCommand())){
    System.exit(0);
    ;}
     
    }
    });
     
    status.setForeground(Color.BLACK);
     
    /*
    * ADD POINTS
    */
     
    final JPanel jp = new JPanel();
    wrap.add(jp, "Add Points");
     
    jp.setLayout(new BorderLayout());
     
    JPanel jp2 = new JPanel();
    jp.add(jp2, BorderLayout.EAST);
    final JPanel jp1 = new JPanel();
    jp.add(jp1, BorderLayout.CENTER);
     
    jp2.setLayout(new GridLayout(0,1));
     
    JButton enter = new JButton("Add Points");
    JButton reset = new JButton("Reset");
    JButton applydbscan = new JButton("Apply DBscan");
     
    enter.setAlignmentX( 0);
    reset.setAlignmentX(0);
    applydbscan.setAlignmentX(0);
     
    jp2.add(enter);
    jp2.add(reset);
    jp2.add(applydbscan);
     
    JButton clearpl = new JButton("Clear All");
    jp2.add(clearpl);
     
    JPanel lowerbar =new JPanel();
    jp.add(lowerbar,BorderLayout.SOUTH);
    lowerbar.setLayout(new BoxLayout(lowerbar,BoxLayout.X_AXIS));
    lowerbar.add(status);
    lowerbar.add(Box.createHorizontalGlue());
    lowerbar.add(counter);
     
    jp2.setBorder(BorderFactory.createLineBorder(Color .black));
     
    JPanel jp11 = new JPanel();
    jp11.setLayout(new BoxLayout(jp11, BoxLayout.Y_AXIS));
    JPanel pl1 =new JPanel();
     
    pl1.setBorder(BorderFactory.createLineBorder(Color .black));
    JLabel l1 = new JLabel("Enter Points");
    JLabel comma = new JLabel(",");
     
    jp1.setLayout(new BoxLayout(jp1, BoxLayout.Y_AXIS));
    l1.setAlignmentX((float) 0.5);
    pl1.add(l1);
    pl1.add(Box.createHorizontalGlue());
    pl1.add(l1);
    pl1.add(Box.createHorizontalGlue());
    jp1.add(pl1);
     
    JPanel jpp1 = new JPanel();
    JLabel x = new JLabel("X Coordinate");
    JLabel y = new JLabel("Y Coordinate");
    jp11.add(Box.createVerticalGlue());
    jpp1.add(x);
    jpp1.add(comma);
    jpp1.add(y);
    JPanel jpp2 = new JPanel();
    jpp2.add(tfx);
    jpp2.add(comma);
    jpp2.add(tfy);
    jp11.setBorder(BorderFactory.createLineBorder(Colo r.black));
    jp11.add(jpp1);
    jp11.add(jpp2);
    jp11.add(Box.createVerticalGlue());
    jp1.add(jp11);
     
    // Output Panel
     
    final JPanel ojp = new JPanel();
    ojp.setLayout(new BorderLayout());
     
    wrap.add(ojp,"Output");
     
    JPanel ojp2 = new JPanel();
    ojp.add(ojp2, BorderLayout.EAST);
     
    final JPanel ojp1 = new JPanel();
     
    //ojp.add(ojp1, BorderLayout.CENTER);
     
    ojp2.setLayout(new GridLayout(0,1));
     
    JButton oenter = new JButton("Add More Points");
    ojp2.add(oenter);
     
    JButton pointl = new JButton("PointsList");
    ojp2.add(pointl);
    ojp2.add(Box.createVerticalGlue());
    ojp2.add(Box.createVerticalGlue());
     
    ojp2.setBorder(BorderFactory.createLineBorder(Colo r.black));
     
    final JPanel txtpanel = new JPanel();
    txtpanel.setLayout(new BoxLayout(txtpanel, BoxLayout.Y_AXIS));
    //ojp.add(txtpanel, BorderLayout.WEST);
    JScrollPane jsp1 =new JScrollPane(txtpanel);
    jsp1.setVerticalScrollBarPolicy(JScrollPane.VERTIC AL_SCROLLBAR_ALWAYS);
     
    ojp.add(jsp1,BorderLayout.WEST);
     
    final JPanel cluster = new JPanel();
     
    cluster.setLayout(new BoxLayout(cluster, BoxLayout.Y_AXIS));
    cluster.setBorder(BorderFactory.createLineBorder(C olor.black));
    ojp1.add(cluster);
     
    JScrollPane jsp =new JScrollPane(ojp1);
    jsp.setVerticalScrollBarPolicy(JScrollPane.VERTICA L_SCROLLBAR_ALWAYS);
    jsp.getVerticalScrollBar().addAdjustmentListener(n ew AdjustmentListener(){
     
    public void adjustmentValueChanged(AdjustmentEvent ae) {
     
    if (ae.getValueIsAdjusting()) {
    cluster.revalidate();
    }
     
    }
     
    });
     
    ojp.add(jsp,BorderLayout.CENTER);
     
    /*
    * GETTING INPUT VARIABLES
    */
     
    JPanel var =new JPanel();
    var.setLayout(new BoxLayout(var ,BoxLayout.Y_AXIS));
    JPanel var1 =new JPanel();
    JPanel var2 =new JPanel();
    JLabel varl1 =new JLabel ("Minimum Points");
    JLabel varl2 =new JLabel ("Threshold Distance");
    final JTextField tvar1 =new JTextField(4);
    final JTextField tvar2 =new JTextField(4);
    JButton submit = new JButton("Submit");
     
    var1.add(varl1); var1.add(tvar1);
    var2.add(varl2); var2.add(tvar2);
    var.add(Box.createVerticalGlue());
    var.add(var1); var.add(var2); var.add(submit);
    var.add(Box.createVerticalGlue());
     
    var.setBorder(BorderFactory.createLineBorder(Color .black));	
    wrap.add(var, "Variables");
    card.show(wrap, "Variables");
     
    /*
    * Submit Listener
    */
     
    submit.addActionListener(new ActionListener(){
     
    public void actionPerformed(ActionEvent ae) {
    String str = "Submit";
    if ((str.compareTo(ae.getActionCommand()) == 0)) {
    minpoints = Integer.parseInt(tvar1.getText());
    tdistance = Integer.parseInt(tvar2.getText());
     
    card.show(wrap, "Add Points");
     
    }
    }});
     
    /*
    * ADD MORE POINTS BUTTON LISTENER
    */
     
    oenter.addActionListener(new ActionListener() {
    public void actionPerformed(ActionEvent ae) {
    String str = "Add More Points";
    if ((str.compareTo(ae.getActionCommand()) == 0)) {
    // output.setVisible(false);
     
    jp.revalidate();
    card.show(wrap, "Add Points");
     
    }
    }
    });
     
    /*
    * ClearBUTTON LISTENER
    */
     
    clearpl.addActionListener(new ActionListener() {
    public void actionPerformed(ActionEvent ae) {
    String str = "Clear All";
    if ((str.compareTo(ae.getActionCommand()) == 0)) {
     
    hset.clear();
    dbscan.pointList.clear();
    dbscan.resultList.clear();
    Utility.VisitList.clear();
    counter.setText("Number of Points-" + Integer.toString(hset.size()));
    status.setText("PointList Cleared");
    tfx.setText(null);
    tfy.setText(null);
    jp.revalidate();
    card.show(wrap, "Add Points");
     
    }
    }
    });
    /*
    * RESET BUTTON LISTENER
    */
     
    reset.addActionListener(new ActionListener() {
    public void actionPerformed(ActionEvent ae) {
    String str = "Reset";
    if ((str.compareTo(ae.getActionCommand()) == 0)) {
    tfx.setText(null);
    tfy.setText(null);
    status.setText(null);
    }
    }
    });
     
    /*
    * ADD POINTS BUTTON LISTENER
    */
     
    enter.addActionListener(new ActionListener() {
    public void actionPerformed(ActionEvent ae) {
    String str = "Add Points";
    if ((str.compareTo(ae.getActionCommand()) == 0)) {
     
    addpoints();
    }
    }
    });
     
    /*
    * POINTS LIST LISTENER
    */
     
    pointl.addActionListener(new ActionListener() {
    public void actionPerformed(ActionEvent ae) {
    String str = "PointsList";
    if ((str.compareTo(ae.getActionCommand()) == 0)) {
    int i = 0;
    pta.setText("");
    txtpanel.add(pta);
     
    pta.append("Points" + newline + "------" + newline);
    Iterator<Point> pitr = hset.iterator();
    while (pitr.hasNext()) {
    Point pp = pitr.next();
     
    pta.append(pp.getX() + "," + pp.getY() + newline);
     
    i++;
    }
    pta.setFocusable(true);
     
    txtpanel.revalidate();
    ojp.revalidate();
    }
    }
    });
     
    /*
    * APPLY DBSCAN BUTTON LISTENER
    */
     
    applydbscan.addActionListener(new ActionListener() {
    public void actionPerformed(ActionEvent ae) {
    String str = "Apply DBscan";
    if ((str.compareTo(ae.getActionCommand()) == 0)) {
     
    cluster.removeAll();
    pta.setText(null);
    trl.clear();
    trl.addAll(dbscan.applyDbscan());
     
    int index1 = 0;
     
    for(List l : trl){
     
    cluster.add(new Label("Cluster :" + (index1 + 1)));
     
    Iterator<Point> j = l.iterator();
    while (j.hasNext()) {
    Point w = j.next();
    cluster.add(new Label((w.getX() + "," + w.getY())));
    }
    cluster.add(new Label("***************"));
    index1++;
     
    }
     
    card.show(wrap, "Output");
     
    cluster.revalidate();
     
    }
    }
    });
     
    }
     
    public static void addpoints() {
     
    try{
    x1 = Integer.parseInt(tfx.getText());
    y1 = Integer.parseInt(tfy.getText());
    a=true;}
    catch(Exception e){a= false;
    }
    Point np = new Point(x1, y1);
     
    if (a){
    for(Point f : hset){
     
    if (Utility.equalPoints(f, np)) {
    Y = true;
    break;
    } else
    {Y = false;}
     
    }
     
    if (!Y) {
    hset.add(np);
    status.setText("Point " + x1 + "," + y1 + " Added");
    status.setForeground(Color.BLUE);
    counter.setText("Number of Points-" + Integer.toString(hset.size()));
    tfx.setText(null);
    tfy.setText(null);
     
    }
    if (Y) {
    status.setText("Point " + x1 + "," + y1 + " Already Exists");
    tfx.setText(null);
    tfy.setText(null);
    status.setForeground(Color.BLACK);
     
    }
    }
    else {
    status.setText("Wrong Input");
    status.setForeground(Color.RED);
    tfx.setText(null);
    tfy.setText(null); 
    }
    }
     
    /*
    public static void homeScreen() {
    final JFrame home = new JFrame("DBscan");
    JPanel h1 = new JPanel();
    home.setBounds(250, 50, 800, 600);
    home.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE );
     
    home.add(h1);
     
    java.net.URL imageURL = Gui.class.getResource("eag.gif");
    ImageIcon icon = new ImageIcon(imageURL);
    JLabel jlb = new JLabel(icon);
    h1.setBackground(Color.BLACK);
    h1.add(jlb);
    home.pack();
    home.setVisible(true);
    Timer t = new Timer();
    TimerTask t1 = new TimerTask() {
     
    @Override
    public void run() {
     
    home.setVisible(false);
    makeGui();
    }
    };
    t.schedule(t1, 3000);
     
    try {
    Thread.sleep(5000);
    } catch (InterruptedException exc) {
    }
    t1.cancel();
    }
    */
    public static void main(String args[]) {
     
    makeGui();
     
    }
    }

    DBSCAN.JAVA
     
    package dbscan;
     
    import java.util.*;
     
    public class dbscan
    {
    public static int e=Gui.tdistance;
    public static int minpt =Gui.minpoints;
     
    public static Vector<List> resultList = new Vector<List>();
     
    public static Vector<Point> pointList = Utility.getList();
     
    public static Vector<Point> Neighbours ;
     
    public static Vector<List> applyDbscan()
    {
    resultList.clear();
    pointList.clear();
    Utility.VisitList.clear();
    pointList=Utility.getList();
     
    int index2 =0;
     
    while (pointList.size()>index2){
    Point p =pointList.get(index2);
    if(!Utility.isVisited(p)){
     
    Utility.Visited(p);
     
    Neighbours =Utility.getNeighbours(p);
     
    if (Neighbours.size()>=minpt){
     
    int ind=0;
    while(Neighbours.size()>ind){
     
    Point r = Neighbours.get(ind);
    if(!Utility.isVisited(r)){
    Utility.Visited(r);
    Vector<Point> Neighbours2 = Utility.getNeighbours(r);
    if (Neighbours2.size() >= minpt){
    Neighbours=Utility.Merge(Neighbours, Neighbours2);
    }
    } ind++;
    }
     
    System.out.println("N"+Neighbours.size());
    resultList.add(Neighbours);}
     
    }index2++;
    }return resultList;	
    }
     
    }

    point.java

    package dbscan;
     
    public class Point 
    {
    private int x;
     
    private int y;
     
    Point(int a, int b)
    {
    x=a;
    y=b;
    }
     
    public int getX ()
    {
     
    return x;
     
    }
     
    public int getY () 
    {
     
    return y;
     
    }
     
    }

    utility.java

    package dbscan;
     
    import java.util.Iterator;
    import java.util.Vector;
     
    public class Utility{
     
    public static Vector<Point> VisitList = new Vector<Point>();
     
    public static double getDistance (Point p, Point q)
    {
     
    int dx = p.getX()-q.getX();
     
    int dy = p.getY()-q.getY();
     
    double distance = Math.sqrt (dx * dx + dy * dy);
     
    return distance;
     
    }
     
    /**
    neighbourhood points of any point p
    **/
     
    public static Vector<Point> getNeighbours(Point p)
    {
    Vector<Point> neigh =new Vector<Point>();
    Iterator<Point> points = dbscan.pointList.iterator();
    while(points.hasNext()){
    Point q = points.next();
    if(getDistance(p,q)<= dbscan.e){
    neigh.add(q);
    }
    }
    return neigh;
    }
     
    public static void Visited(Point d){
    VisitList.add(d);
     
    }
     
    public static boolean isVisited(Point c)
    {
    if (VisitList.contains(c))
    {
    return true;
    }
    else
    {
    return false;
    }
    }
     
    public static Vector<Point> Merge(Vector<Point> a,Vector<Point> b)
    {
     
    Iterator<Point> it5 = b.iterator();
    while(it5.hasNext()){
    Point t = it5.next();
    if (!a.contains(t) ){
    a.add(t);
    }
    }
    return a;
    }
     
    // Returns PointsList to DBscan.java 
     
    public static Vector<Point> getList() {
     
    Vector<Point> newList =new Vector<Point>();
    newList.clear();
    newList.addAll(Gui.hset);
    return newList;
    }	
     
    public static Boolean equalPoints(Point m , Point n) {
    if((m.getX()==n.getX())&&(m.getY()==n.getY()))
    return true;
    else
    return false;
    }	
     
    }

  4. #4
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    Default Re: DBSCAN connectivity with database MYSQL

    Just want to know why you want to connect to Database,
    are you storing your points (i.e. co-ordinates) in data base.

  5. The Following User Says Thank You to Raven123 For This Useful Post:

    navxxxx (December 13th, 2012)

  6. #5
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    Default Re: DBSCAN connectivity with database MYSQL

    yes RAVEN..... u r right. I want to store points in my database . but tell me how to to do this. I want to connect my program to MYSql database.

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