Example #1
0
  // From: http://forum.java.sun.com/thread.jspa?threadID=378460&tstart=135
  void drawArrow(
      Graphics2D g2d,
      int xCenter,
      int yCenter,
      int x,
      int y,
      float stroke,
      BasicStroke drawStroke) {
    double aDir = Math.atan2(xCenter - x, yCenter - y);
    // Line can be dashed.
    g2d.setStroke(drawStroke);
    g2d.drawLine(x, y, xCenter, yCenter);
    // make the arrow head solid even if dash pattern has been specified
    g2d.setStroke(lineStroke);
    Polygon tmpPoly = new Polygon();
    int i1 = 12 + (int) (stroke * 2);
    // make the arrow head the same size regardless of the length length
    int i2 = 6 + (int) stroke;
    tmpPoly.addPoint(x, y);
    tmpPoly.addPoint(x + xCor(i1, aDir + .5), y + yCor(i1, aDir + .5));
    tmpPoly.addPoint(x + xCor(i2, aDir), y + yCor(i2, aDir));
    tmpPoly.addPoint(x + xCor(i1, aDir - .5), y + yCor(i1, aDir - .5));
    tmpPoly.addPoint(x, y); // arrow tip
    g2d.drawPolygon(tmpPoly);

    // Remove this line to leave arrow head unpainted:
    g2d.fillPolygon(tmpPoly);
  }
Example #2
0
  private void draw_horizon(int rad, Point center, int[] angles) {
    // Draw an arc
    int arc_angle =
        ((angles[0] > angles[1]) ? (360 - angles[0]) + angles[1] : (angles[1] - angles[0]));

    Polygon remainder = new Polygon();

    offgraphics_.setColor(GREEN);
    offgraphics_.fillArc(center.x - rad, center.y - rad, 2 * rad, 2 * rad, angles[0], arc_angle);

    if (pitch_ != 0) {
      if ((pitch_ > 0 && Math.abs(roll_) < 90) || (pitch_ < 0 && Math.abs(roll_) >= 90))
        offgraphics_.setColor(BLUE);

      int cover_angle = (angles[0] + arc_angle / 2 + ((arc_angle < 180) ? 180 : 0)) % 360;

      // System.out.println (points[0] + " " + points[1]);

      // System.out.println (accepted_point);

      remainder.addPoint(
          center.x + polar_to_rect_x(rad, cover_angle),
          center.y - polar_to_rect_y(rad, cover_angle));
      remainder.addPoint(
          center.x + polar_to_rect_x(rad, angles[0]), center.y - polar_to_rect_y(rad, angles[0]));
      remainder.addPoint(
          center.x + polar_to_rect_x(rad, angles[1]), center.y - polar_to_rect_y(rad, angles[1]));
      offgraphics_.fillPolygon(remainder);
      // offgraphics_.setColor (getBackground ());
      // offgraphics_.drawPolygon (remainder);
    }
  }
Example #3
0
  private Polygon outline(int x, int y, double direction) {
    Polygon shape = new Polygon();

    shape.addPoint(x, y);
    addPointRelative(shape, x, y, getOuterRadius(), direction - getAngle());
    addPointRelative(shape, x, y, getInnerRadius(), direction);
    addPointRelative(shape, x, y, getOuterRadius(), direction + getAngle());
    shape.addPoint(x, y); // Closing the polygon (TEG 97-04-23)
    return shape;
  }
Example #4
0
  /**
   * Draws a single arrow head
   *
   * @param aG the canvas to draw on;
   * @param aXpos the X position of the arrow head;
   * @param aYpos the (center) Y position of the arrow head;
   * @param aFactor +1 to have a left-facing arrow head, -1 to have a right-facing arrow head;
   * @param aArrowWidth the total width of the arrow head;
   * @param aArrowHeight the total height of the arrow head.
   */
  public static final void drawArrowHead(
      final Graphics2D aG,
      final int aXpos,
      final int aYpos,
      final int aFactor,
      final int aArrowWidth,
      final int aArrowHeight) {
    final double halfHeight = aArrowHeight / 2.0;
    final int x1 = aXpos + (aFactor * aArrowWidth);
    final int y1 = (int) Math.ceil(aYpos - halfHeight);
    final int y2 = (int) Math.floor(aYpos + halfHeight);

    final Polygon arrowHead = new Polygon();
    arrowHead.addPoint(aXpos, aYpos);
    arrowHead.addPoint(x1, y1);
    arrowHead.addPoint(x1, y2);

    aG.fill(arrowHead);
  }
Example #5
0
  /**
   * Adds a polygon. Note that the vertices of the polygon are passed using a float[][] and NOT a
   * float[]. Eg.
   *
   * <p>{{x0, y0, z0}, {x1, y1, z1}, ...}
   *
   * <p>We *flatten* the data once it is encapsulated inside this class; outside this class we want
   * clarity; inside this class we want speed!
   */
  public int addPolygon(float[][] vs, Color c, boolean doubleSided) {
    Polygon polygon = new Polygon(vs.length, c, doubleSided);
    for (int i = 0; i < vs.length; i++) {
      polygon.addPoint(this.addPoint(vs[i][0], vs[i][1], vs[i][2]));
    }
    polygons[polynext] = polygon;

    // if this was the last polygon then we may now set the bounding box
    if (polynext == polygons.length - 1) {
      this.box.setBB();
    }
    return polynext++;
  }
  /**
   * The GraphicDrawer.paint() Function allows the user to draw pre-defined graphics into a given
   * Graphics Object. The user may give the rectangle properties which defines at best the desired
   * area to draw with a Int id which requests the desired graphic, whenever it's vectorial or
   * raster graphics
   *
   * @author LuisArturo
   */
  public void paint(int id, Dimension r, Graphics g) {
    Graphics2D g2;
    switch (id) {
      case FILE:
        {
          g2 = (Graphics2D) g;
          try {
            FileInputStream img = new FileInputStream("archivo.png");
            BufferedImage in = ImageIO.read(img);
            g2.drawImage(
                in, r.width * 2 / 10, r.height * 2 / 10, r.width * 2 / 3, r.height * 2 / 3, null);
          } catch (Exception e) {
            e.printStackTrace();
          }
        }
        break;
      case REDO:
        {
          g2 = (Graphics2D) g;
          g2.setColor(color);
          g2.fillArc(
              r.width * 2 / 10, r.height * 2 / 10, r.width * 6 / 10, r.height * 6 / 10, 270, 225);
          Polygon p = new Polygon();
          p.addPoint(r.width * 2 / 10, r.height * 2 / 10);
          p.addPoint(r.width * 2 / 10, r.height * 5 / 10);
          p.addPoint(r.width * 5 / 10, r.height * 5 / 10);
          g2.fillPolygon(p);
          g2.setColor(g2.getBackground());
          g2.fillArc(
              r.width * 3 / 10, r.height * 3 / 10, r.width * 4 / 10, r.height * 4 / 10, 270, 225);
        }
        break;
      case TEXT:
        {
          g2 = (Graphics2D) g;
          g2.setColor(color);
          g2.setFont(new Font("Serif", Font.ITALIC | Font.BOLD, r.height * 6 / 10));
          g2.drawChars("A".toCharArray(), 0, 1, r.width * 3 / 10, r.height * 7 / 10);
        }
        break;
      case SELECT:
        {
          g2 = (Graphics2D) g;
          try {
            FileInputStream img = new FileInputStream("mano.png");
            BufferedImage in = ImageIO.read(img);
            g2.drawImage(
                in, r.width * 1 / 10, r.height * 1 / 10, r.width * 2 / 3, r.height * 2 / 3, null);
          } catch (Exception e) {
            e.printStackTrace();
          }
        }
        break;
      case PENCIL:
        {
          g2 = (Graphics2D) g;
          try {
            FileInputStream img = new FileInputStream("lapiz.png");
            BufferedImage in = ImageIO.read(img);
            g2.drawImage(
                in, r.width * 2 / 10, r.height * 2 / 10, r.width * 2 / 3, r.height * 2 / 3, null);
          } catch (Exception e) {
            e.printStackTrace();
          }
        }
        break;

      case ARROW:
        {
          g2 = (Graphics2D) g;
          try {
            FileInputStream img = new FileInputStream("arrow.png");
            BufferedImage in = ImageIO.read(img);
            g2.drawImage(
                in, r.width * 2 / 10, r.height * 2 / 10, r.width * 2 / 3, r.height * 2 / 3, null);
          } catch (Exception e) {
            e.printStackTrace();
          }
        }
        break;
      case ZOOM:
        {
          g2 = (Graphics2D) g;
          try {
            FileInputStream img = new FileInputStream("zoom.png");
            BufferedImage in = ImageIO.read(img);
            g2.drawImage(
                in, r.width * 2 / 10, r.height * 2 / 10, r.width * 2 / 3, r.height * 2 / 3, null);
          } catch (Exception e) {
            e.printStackTrace();
          }
        }
        break;
    }
  }
Example #7
0
 private void addPointRelative(Polygon shape, int x, int y, double radius, double angle) {
   shape.addPoint(x + (int) (radius * Math.cos(angle)), y + (int) (radius * Math.sin(angle)));
 }