private void drawPlot(Graphics g) {
    Graphics2D g2d = (Graphics2D) g;
    g2d.setRenderingHint(
        RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_ON);
    g2d.setColor(Color.white);
    g2d.fillRect(0, 0, getWidth(), getHeight());

    double activeWidth = getWidth() - leftMargin - rightMargin;
    double activeHeight = getHeight() - topMargin - bottomMargin;
    int bottomY = getHeight() - bottomMargin;
    int rightX = getWidth() - rightMargin;

    // draw data line
    int x1, x2, y1, y2;
    g2d.setColor(Color.red);
    for (int i = 1; i < numComponents; i++) {
      x1 = (int) (leftMargin + ((double) (i - 1) / (numComponents - 1)) * activeWidth);
      y1 = (int) (bottomY - (plotData[i - 1][plotIndex] * 10.0) / 1000 * activeHeight);
      x2 = (int) (leftMargin + ((double) (i) / (numComponents - 1)) * activeWidth);
      y2 = (int) (bottomY - (plotData[i][plotIndex] * 10) / 1000 * activeHeight);
      g2d.drawLine(x1, y1, x2, y2);
    }

    // draw data points
    int radius = 2;
    for (int i = 0; i < numComponents; i++) {
      x1 = (int) (leftMargin + ((double) (i) / (numComponents - 1)) * activeWidth);
      y1 = (int) (bottomY - (plotData[i][plotIndex] * 10.0) / 1000 * activeHeight);
      g2d.drawOval(x1 - radius - 1, y1 - radius - 1, 2 * radius + 2, 2 * radius + 2);
    }

    // draw axes
    g2d.setColor(Color.black);
    g2d.drawLine(leftMargin, bottomY, rightX, bottomY);
    g2d.drawLine(leftMargin, bottomY, leftMargin, topMargin);
    g2d.drawLine(leftMargin, topMargin, rightX, topMargin);
    g2d.drawLine(rightX, bottomY, rightX, topMargin);

    // draw ticks
    int tickSize = 4;
    for (int i = 1; i <= numComponents; i++) {
      x1 = (int) (leftMargin + ((double) (i - 1) / (numComponents - 1)) * activeWidth);
      g2d.drawLine(x1, bottomY, x1, bottomY + tickSize);
    }

    for (int i = 0; i <= 1000; i += 100) {
      y1 = (int) (bottomY - i / 1000.0 * activeHeight);
      g2d.drawLine(leftMargin, y1, leftMargin - tickSize, y1);
    }

    // labels
    DecimalFormat df = new DecimalFormat("#,###,###.###");
    Font font = new Font("SanSerif", Font.PLAIN, 11);
    FontMetrics metrics = g.getFontMetrics(font);
    int hgt, adv;
    hgt = metrics.getHeight();

    // x-axis labels
    String label;
    for (int i = 1; i <= numComponents; i++) {
      label = String.valueOf(i);
      x1 = (int) (leftMargin + ((double) (i - 1) / (numComponents - 1)) * activeWidth);
      adv = metrics.stringWidth(label) / 2;
      g2d.drawString(label, x1 - adv, bottomY + hgt + 4);
    }
    label = "Component";
    adv = metrics.stringWidth(label);
    int xAxisMidPoint = (int) (leftMargin + activeWidth / 2);
    g2d.drawString(label, xAxisMidPoint - adv / 2, bottomY + 2 * hgt + 6);

    // y-axis labels

    // rotate the font
    Font oldFont = g.getFont();
    Font f = oldFont.deriveFont(AffineTransform.getRotateInstance(-Math.PI / 2.0));
    g2d.setFont(f);

    int yAxisMidPoint = (int) (topMargin + activeHeight / 2);
    int offset;
    label = "Explained Variance (%)";
    offset = metrics.stringWidth("100.0") + 12 + hgt;
    adv = metrics.stringWidth(label);
    g2d.drawString(label, leftMargin - offset, yAxisMidPoint + adv / 2);

    // replace the rotated font.
    g2d.setFont(oldFont);

    df = new DecimalFormat("0.0");
    for (int i = 0; i <= 1000; i += 100) {
      label = df.format(i / 10);
      y1 = (int) (bottomY - i / 1000.0 * activeHeight);
      adv = metrics.stringWidth(label);
      g2d.drawString(label, leftMargin - adv - 12, y1 + hgt / 2);
    }

    // title

    // bold font
    oldFont = g.getFont();
    font = font = new Font("SanSerif", Font.BOLD, 12);
    g2d.setFont(font);

    label = "PCA Scree Plot";
    adv = metrics.stringWidth(label);
    g2d.drawString(label, getWidth() / 2 - adv / 2, topMargin - hgt - 5);

    g2d.setFont(oldFont);
  }
示例#2
0
 // also clip, transform, composite,
 // public boolean isOpaque(){return false;}//theOpaque!=null&&theOpaque;}
 // ---------------------------------------------------------
 private void doPaint(Graphics2D g, int s, Object o) {
   // process an operation from the buffer
   // System.out.println(s);
   Object o1 = null,
       o2 = null,
       o3 = null,
       o4 = null,
       o5 = null,
       o6 = null,
       o7 = null,
       o8 = null,
       o9 = null,
       o10 = null,
       o11 = null;
   if (o instanceof Object[]) {
     Object[] a = (Object[]) o;
     if (a.length > 0) o1 = a[0];
     if (a.length > 1) o2 = a[1];
     if (a.length > 2) o3 = a[2];
     if (a.length > 3) o4 = a[3];
     if (a.length > 4) o5 = a[4];
     if (a.length > 5) o6 = a[5];
     if (a.length > 6) o7 = a[6];
     if (a.length > 7) o8 = a[7];
     if (a.length > 8) o9 = a[8];
     if (a.length > 9) o10 = a[9];
     if (a.length > 10) o11 = a[10];
   }
   switch (s) {
     case clear:
       paintBackground(g, theBackground);
       break;
       // public void addRenderingHints(Map<?,?> hints)
       // {toBuffer("addRenderingHints",hints );}
     case addRenderingHints:
       g.addRenderingHints((Map<?, ?>) o);
       break;
     case clip1:
       g.clip((Shape) o);
       break;
     case draw1:
       g.draw((Shape) o);
       break;
     case draw3DRect:
       g.draw3DRect((Integer) o1, (Integer) o2, (Integer) o3, (Integer) o4, (Boolean) o5);
       break;
     case drawGlyphVector:
       g.drawGlyphVector((GlyphVector) o1, (Float) o2, (Float) o3);
       break;
     case drawImage1:
       g.drawImage((BufferedImage) o1, (BufferedImageOp) o2, (Integer) o3, (Integer) o4);
       break;
     case drawImage2:
       g.drawImage((Image) o1, (AffineTransform) o2, (ImageObserver) o3);
       break;
     case drawRenderableImage:
       g.drawRenderableImage((RenderableImage) o1, (AffineTransform) o2);
       break;
     case drawRenderedImage:
       g.drawRenderedImage((RenderedImage) o1, (AffineTransform) o2);
       break;
     case drawString1:
       g.drawString((AttributedCharacterIterator) o1, (Float) o2, (Float) o3);
       break;
     case drawString2:
       g.drawString((AttributedCharacterIterator) o1, (Integer) o2, (Integer) o3);
       break;
     case drawString3:
       g.drawString((String) o1, (Float) o2, (Float) o3);
       break;
     case drawString4:
       g.drawString((String) o1, (Integer) o2, (Integer) o3);
       break;
     case fill:
       g.fill((Shape) o);
       break;
     case fill3DRect:
       g.fill3DRect((Integer) o1, (Integer) o2, (Integer) o3, (Integer) o4, (Boolean) o5);
       break;
     case rotate1:
       g.rotate((Double) o);
       break;
     case rotate2:
       g.rotate((Double) o1, (Double) o2, (Double) o3);
       break;
     case scale1:
       g.scale((Double) o1, (Double) o2);
       break;
     case setBackground:
       g.setBackground(
           (Color) o); // paintBackground(g,(Color)o); /*super.setBackground((Color)o) ;*/
       break;
     case setComposite:
       g.setComposite((Composite) o);
       break;
     case setPaint:
       g.setPaint((Paint) o);
       break;
     case setRenderingHint:
       g.setRenderingHint((RenderingHints.Key) o1, o2);
       break;
     case setRenderingHints:
       g.setRenderingHints((Map<?, ?>) o);
       break;
     case setStroke:
       g.setStroke((Stroke) o);
       break;
     case setTransform:
       g.setTransform(makeTransform(o));
       break;
     case shear:
       g.shear((Double) o1, (Double) o2);
       break;
     case transform1:
       g.transform(makeTransform(o));
       break;
     case translate1:
       g.translate((Double) o1, (Double) o2);
       break;
     case translate2:
       g.translate((Integer) o1, (Integer) o2);
       break;
     case clearRect:
       g.clearRect((Integer) o1, (Integer) o2, (Integer) o3, (Integer) o4);
       break;
     case copyArea:
       g.copyArea(
           (Integer) o1, (Integer) o2, (Integer) o3, (Integer) o4, (Integer) o5, (Integer) o6);
       break;
     case drawArc:
       g.drawArc(
           (Integer) o1, (Integer) o2, (Integer) o3, (Integer) o4, (Integer) o5, (Integer) o6);
       break;
     case drawBytes:
       g.drawBytes((byte[]) o1, (Integer) o2, (Integer) o3, (Integer) o4, (Integer) o5);
       break;
     case drawChars:
       g.drawChars((char[]) o1, (Integer) o2, (Integer) o3, (Integer) o4, (Integer) o5);
       break;
     case drawImage4:
       g.drawImage((Image) o1, (Integer) o2, (Integer) o3, (Color) o4, (ImageObserver) o5);
       break;
     case drawImage5:
       g.drawImage((Image) o1, (Integer) o2, (Integer) o3, (ImageObserver) o4);
       break;
     case drawImage6:
       g.drawImage(
           (Image) o1,
           (Integer) o2,
           (Integer) o3,
           (Integer) o4,
           (Integer) o5,
           (Color) o6,
           (ImageObserver) o7);
       break;
     case drawImage7:
       g.drawImage(
           (Image) o1, (Integer) o2, (Integer) o3, (Integer) o4, (Integer) o5, (ImageObserver) o6);
       break;
     case drawImage8:
       g.drawImage(
           (Image) o1,
           (Integer) o2,
           (Integer) o3,
           (Integer) o4,
           (Integer) o5,
           (Integer) o6,
           (Integer) o7,
           (Integer) o8,
           (Integer) o9,
           (Color) o10,
           (ImageObserver) o11);
       break;
     case drawImage9:
       g.drawImage(
           (Image) o1,
           (Integer) o2,
           (Integer) o3,
           (Integer) o4,
           (Integer) o5,
           (Integer) o6,
           (Integer) o7,
           (Integer) o8,
           (Integer) o9,
           (ImageObserver) o10);
       break;
     case drawLine:
       g.drawLine((Integer) o1, (Integer) o2, (Integer) o3, (Integer) o4);
       break;
     case drawOval:
       g.drawOval((Integer) o1, (Integer) o2, (Integer) o3, (Integer) o4);
       break;
     case drawPolygon1:
       g.drawPolygon((int[]) o1, (int[]) o2, (Integer) o3);
       break;
     case drawPolygon2:
       g.drawPolygon((Polygon) o);
       break;
     case drawPolyline:
       g.drawPolyline((int[]) o1, (int[]) o2, (Integer) o3);
       break;
     case drawRect:
       g.drawRect((Integer) o1, (Integer) o2, (Integer) o3, (Integer) o4);
       break;
     case drawRoundRect:
       g.drawRoundRect(
           (Integer) o1, (Integer) o2, (Integer) o3, (Integer) o4, (Integer) o5, (Integer) o6);
       break;
     case fillArc:
       g.fillArc(
           (Integer) o1, (Integer) o2, (Integer) o3, (Integer) o4, (Integer) o5, (Integer) o6);
       break;
     case fillOval:
       g.fillOval((Integer) o1, (Integer) o2, (Integer) o3, (Integer) o4);
       break;
       // {toBuffer("fillPolygon",mkArg(xPoints,  yPoints, nPoints) );}
     case fillPolygon1:
       g.fillPolygon((int[]) o1, (int[]) o2, (Integer) o3);
       break;
     case fillPolygon2:
       g.fillPolygon((Polygon) o);
       break;
     case fillRect:
       g.fillRect((Integer) o1, (Integer) o2, (Integer) o3, (Integer) o4);
       break;
     case fillRoundRect:
       g.fillRoundRect(
           (Integer) o1, (Integer) o2, (Integer) o3, (Integer) o4, (Integer) o5, (Integer) o6);
       break;
     case setClip1:
       g.setClip((Shape) o);
       break;
     case setColor:
       g.setColor((Color) o);
       break;
     case setFont:
       g.setFont((Font) o);
       break;
     case setPaintMode:
       g.setPaintMode();
       break;
     case setXORMode:
       g.setXORMode((Color) o);
       break;
     case opaque:
       super.setOpaque((Boolean) o);
       break;
     case drawOutline: // g.drawString((String)o1, (Integer)o2, (Integer)o3) ;break;
       {
         FontRenderContext frc = g.getFontRenderContext();
         TextLayout tl = new TextLayout((String) o1, g.getFont(), frc);
         Shape s1 = tl.getOutline(null);
         AffineTransform af = g.getTransform();
         g.translate((Integer) o2, (Integer) o3);
         g.draw(s1);
         g.setTransform(af);
       }
       ;
       break;
     default:
       System.out.println("Unknown image operation " + s);
   }
 }