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(Points, Points, Points, h - Points));
   // Draw abcissa.
   g2.draw(new Line2D.Double(Points, h - Points, w - Points, h - Points));
   // Draw labels.
   Font font = g2.getFont();
   FontRenderContext frc = g2.getFontRenderContext();
   LineMetrics lm = font.getLineMetrics("0", frc);
   float sh = lm.getAscent() + lm.getDescent();
   // Ordinate label.
   String s = "Strecke";
   float sy = Points + ((h - 2 * Points) - s.length() * sh) / 2 + lm.getAscent();
   for (int i = 0; i < s.length(); i++) {
     String letter = String.valueOf(s.charAt(i));
     float sw = (float) font.getStringBounds(letter, frc).getWidth();
     float sx = (Points - sw) / 2;
     g2.drawString(letter, sx, sy);
     sy += sh;
   }
   // Abcissa label.
   s = "Datum";
   sy = h - Points + (Points - sh) / 2 + lm.getAscent();
   float sw = (float) font.getStringBounds(s, frc).getWidth();
   float sx = (w - sw) / 2;
   g2.drawString(s, sx, sy);
   // Draw lines.
   double xInc = (double) (w - 2 * Points) / (data.length - 1);
   double scale = (double) (h - 2 * Points) / getMax();
   g2.setPaint(Color.green.darker());
   for (int i = 0; i < data.length - 1; i++) {
     double x1 = Points + i * xInc;
     double y1 = h - Points - scale * data[i];
     double x2 = Points + (i + 1) * xInc;
     double y2 = h - Points - scale * data[i + 1];
     g2.draw(new Line2D.Double(x1, y1, x2, y2));
   }
   // Mark data points.
   g2.setPaint(Color.red);
   for (int i = 0; i < data.length; i++) {
     double x = Points + i * xInc;
     double y = h - Points - scale * data[i];
     g2.fill(new Ellipse2D.Double(x - 2, y - 2, 4, 4));
   }
 }
示例#2
0
  /*
   * (non-Javadoc)
   *
   * @see org.math.plot.render.AbstractDrawer#drawStringRatio(java.lang.String,
   *      double[], double, double, double)
   */
  public void drawTextBase(String label, double... rC) {
    int[] sC = projection.screenProjectionBase(rC);

    // Corner offset adjustment : Text Offset is used Here
    FontRenderContext frc = comp2D.getFontRenderContext();
    Font font1 = comp2D.getFont();
    int x = sC[0];
    int y = sC[1];
    double w = font1.getStringBounds(label, frc).getWidth();
    double h = font1.getSize2D();
    x -= (int) (w * text_Eastoffset);
    y += (int) (h * text_Northoffset);

    int wc = (int) (w * FastMath.cos(text_angle) + h * FastMath.sin(text_angle));
    int hc = (int) (h * FastMath.cos(text_angle) + w * FastMath.sin(text_angle));
    if (!comp2D.hitClip(x, y, wc, hc)) {
      return;
    }

    if (text_angle != 0) {
      comp2D.rotate(text_angle, x + w / 2, y - h / 2);
    }

    String[] lines = label.split("\n");
    for (int i = 0; i < lines.length; i++) {
      comp2D.drawString(lines[i], x, y);
      y += h;
    }
    // comp2D.drawString(label, x, y);

    if (text_angle != 0) {
      comp2D.rotate(-text_angle, x + w / 2, y - h / 2);
    }
  }
示例#3
0
  public void paintComponent(Graphics g) {
    Graphics2D g2 = (Graphics2D) g;

    String message = "Hello, World!";

    Font f = new Font("Serif", Font.BOLD, 36);
    g2.setFont(f);

    FontRenderContext context = g2.getFontRenderContext();
    Rectangle2D bounds = f.getStringBounds(message, context);

    double x = (getWidth() - bounds.getWidth()) / 2;
    double y = (getHeight() - bounds.getHeight()) / 2;

    double ascent = -bounds.getY();
    double baseY = y + ascent;

    g2.drawString(message, (int) x, (int) baseY);

    g2.setPaint(Color.LIGHT_GRAY);

    g2.draw(new Line2D.Double(x, baseY, x + bounds.getWidth(), baseY));
    Rectangle2D rect = new Rectangle2D.Double(x, y, bounds.getWidth(), bounds.getHeight());
    g2.draw(rect);
  }
示例#4
0
 /**
  * Gets the page count of this section.
  *
  * @param g2 the graphics context
  * @param pf the page format
  * @return the number of pages needed
  */
 public int getPageCount(Graphics2D g2, PageFormat pf) {
   if (message.equals("")) return 0;
   FontRenderContext context = g2.getFontRenderContext();
   Font f = new Font("Serif", Font.PLAIN, 72);
   Rectangle2D bounds = f.getStringBounds(message, context);
   scale = pf.getImageableHeight() / bounds.getHeight();
   double width = scale * bounds.getWidth();
   int pages = (int) Math.ceil(width / pf.getImageableWidth());
   return pages;
 }
示例#5
0
  public void drawShadowedText(String label, float alpha, double... pC) {
    int[] sC = projection.screenProjection(pC);

    // Corner offset adjustment : Text Offset is used Here
    FontRenderContext frc = comp2D.getFontRenderContext();
    Font font1 = comp2D.getFont();
    int x = sC[0];
    int y = sC[1];
    double w = font1.getStringBounds(label, frc).getWidth();
    double h = font1.getSize2D();
    x -= (int) (w * text_Eastoffset);
    y += (int) (h * text_Northoffset);

    int wc = (int) (w * FastMath.cos(text_angle) + h * FastMath.sin(text_angle));
    int hc = (int) (h * FastMath.cos(text_angle) + w * FastMath.sin(text_angle));
    if (!comp2D.hitClip(x, y, wc, hc)) {
      return;
    }

    if (text_angle != 0) {
      comp2D.rotate(text_angle, x + w / 2, y - h / 2);
    }

    Composite cs = comp2D.getComposite();
    Color c = comp2D.getColor();

    String[] lines = label.split("\n");
    for (int i = 0; i < lines.length; i++) {

      comp2D.setColor(Color.white);
      comp2D.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER, alpha));
      comp2D.fillRect(x, y - (int) h, (int) w, (int) h);
      comp2D.setComposite(cs);
      comp2D.setColor(c);

      comp2D.drawString(lines[i], x, y);
      y += h;
    }

    if (text_angle != 0) {
      comp2D.rotate(-text_angle, x + w / 2, y - h / 2);
    }
  }
示例#6
0
  public void paintComponent(Graphics g) {
    Graphics2D g2 = (Graphics2D) g;

    String message = "Hello, World!";

    Font f = new Font("Serif", Font.BOLD, 36);
    g2.setFont(f);

    // measure the size of the message

    FontRenderContext context = g2.getFontRenderContext();
    Rectangle2D bounds = f.getStringBounds(message, context);

    // set (x,y) = top left corner of text

    double x = (getWidth() - bounds.getWidth()) / 2;
    double y = (getHeight() - bounds.getHeight()) / 2;

    // add ascent to y to reach the baseline

    double ascent = -bounds.getY();
    double baseY = y + ascent;

    // draw the message

    g2.drawString(message, (int) x, (int) baseY);

    g2.setPaint(Color.LIGHT_GRAY);

    // draw the baseline

    g2.draw(new Line2D.Double(x, baseY, x + bounds.getWidth(), baseY));

    // draw the enclosing rectangle

    Rectangle2D rect = new Rectangle2D.Double(x, y, bounds.getWidth(), bounds.getHeight());
    g2.draw(rect);
  }
示例#7
0
  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();
    double xScale = (w - 2 * PAD) / (xMax - xMin);
    double yScale = (h - 2 * PAD) / (yMax - yMin);
    if (firstTime) System.out.printf("xScale = %.1f  yScale = %.1f%n", xScale, yScale);
    Point2D.Double origin = new Point2D.Double(); // Axes origin.
    Point2D.Double offset = new Point2D.Double(); // Locate data.
    if (xMax < 0) {
      origin.x = w - PAD;
      offset.x = origin.x - xScale * xMax;
    } else if (xMin < 0) {
      origin.x = PAD - xScale * xMin;
      offset.x = origin.x;
    } else {
      origin.x = PAD;
      offset.x = PAD - xScale * xMin;
    }
    if (yMax < 0) {
      origin.y = h - PAD;
      offset.y = origin.y - yScale * yMax;
    } else if (yMin < 0) {
      origin.y = PAD - yScale * yMin;
      offset.y = origin.y;
    } else {
      origin.y = PAD;
      offset.y = PAD - yScale * yMin;
    }
    if (firstTime) {
      System.out.printf("origin = [%6.1f, %6.1f]%n", origin.x, origin.y);
      System.out.printf("offset = [%6.1f, %6.1f]%n", offset.x, offset.y);
    }

    // Draw abcissa.
    g2.draw(new Line2D.Double(PAD, origin.y, w - PAD, origin.y));
    // Draw ordinate.
    g2.draw(new Line2D.Double(origin.x, PAD, origin.x, h - PAD));
    g2.setPaint(Color.red);
    // Mark origin.
    g2.fill(new Ellipse2D.Double(origin.x - 2, origin.y - 2, 4, 4));

    // Plot data.
    g2.setPaint(Color.blue);
    for (int i = 0; i < x.length; i++) {
      double x1 = offset.x + xScale * x[i];
      double y1 = offset.y + yScale * y[i];
      if (firstTime) System.out.printf("i = %d  x1 = %6.1f  y1 = %.1f%n", i, x1, y1);
      g2.fill(new Ellipse2D.Double(x1 - 2, y1 - 2, 4, 4));
      g2.drawString(String.valueOf(i), (float) x1 + 3, (float) y1 - 3);
    }

    // Draw extreme data values.
    g2.setPaint(Color.black);
    Font font = g2.getFont();
    FontRenderContext frc = g2.getFontRenderContext();
    LineMetrics lm = font.getLineMetrics("0", frc);
    String s = String.format("%.1f", xMin);
    float width = (float) font.getStringBounds(s, frc).getWidth();
    double x = offset.x + xScale * xMin;
    g2.drawString(s, (float) x, (float) origin.y + lm.getAscent());
    s = String.format("%.1f", xMax);
    width = (float) font.getStringBounds(s, frc).getWidth();
    x = offset.x + xScale * xMax;
    g2.drawString(s, (float) x - width, (float) origin.y + lm.getAscent());
    s = String.format("%.1f", yMin);
    width = (float) font.getStringBounds(s, frc).getWidth();
    double y = offset.y + yScale * yMin;
    g2.drawString(s, (float) origin.x + 1, (float) y + lm.getAscent());
    s = String.format("%.1f", yMax);
    width = (float) font.getStringBounds(s, frc).getWidth();
    y = offset.y + yScale * yMax;
    g2.drawString(s, (float) origin.x + 1, (float) y);
    if (firstTime) System.out.println("------------------------------");
    firstTime = false;
  }