Pobranie wartości z linii.

Potrzebuję pobrać wartości z lini, które tworzę na tym wykresie ->

Stworzyłem mouseMotionListener ->

public void mouseHover() {
    addMouseMotionListener(new MouseMotionListener() {

        @Override
        public void mouseMoved(MouseEvent e) {
            int x = e.getX();
            int y = e.getY();

            if(x >= 300 && x <= 1700 && y >= 0 && y <= 800) {
                System.out.println(x + " x Enter y " + y);
            }

        }

Funkcja powyżej jest wywoływana w konstruktorze. Program powinien działać tak, że gdy mysz będzie w polu tam gdzie zaczyna się wykres powinna być wyświetlana wartość obu wykresów.
Niżej podaje metode paintComponent gdzie wyrysowuje wykres:

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

    g2d = (Graphics2D) g;
    g2d.drawRect(300, 0, 1700, 800);

    scaleUnit = 2;
    Integer maxDeath;
    ArrayList<Integer> maxDeathList = new ArrayList<Integer>();
    maxDeathList.addAll(sickList);
    maxDeathList.addAll(deadList);
    if (deadList.size() > 0 || sickList.size() > 0) {
        maxDeath = Collections.max(maxDeathList);
        if (maxDeath > 50) {
            scaleUnit = maxDeath / 20;
        }
    }

    if (deadList.size() > 0) {
        totalDeath.setText(Integer.toString(sumAllElements(deadList)));
        avgDeath.setText(Integer.toString(avgValue(deadList)));
    }


    if (sickList.size() > 0) {
        totalSick.setText(Integer.toString(sumAllElements(sickList)));
        avgSick.setText(Integer.toString(avgValue(sickList)));
    }

    int startX = 300;
    int startY = 100;
    int endX = 10;
    int endY = 800;
    int unitX = (endX - startX) / 10;
    int unitY = (endY - startY) / 100;
    int prevX = startX;
    int prevY = endY;

    int startXSick = 300;
    int startYSick = 100;
    int endXSick = 10;
    int endYSick = 800;
    int unitXSick = (endXSick - startXSick) / 10;
    int unitYSick = (endYSick - startYSick) / 100;
    int prevXSick = startX;
    int prevYSick = endY;

    g2d.setColor(Color.RED);
    g2d.setStroke(new BasicStroke(2));
    for (int y : deadList) {
        g2d.drawLine(prevX, prevY, prevX -= unitX, prevY = endY - (y * unitY) / scaleUnit);
    }

    g2d.setColor(Color.BLUE);
    for (int x : sickList) {
        g2d.drawLine(prevXSick, prevYSick, prevXSick -= unitXSick,
                prevYSick = endYSick - (x * unitYSick) / scaleUnit);
    }
    g2d.setStroke(new BasicStroke(1));
    repaint();
}