java.awt.Graphics2D.rotate()方法的使用及代码示例

x33g5p2x  于2022-01-19 转载在 其他  
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本文整理了Java中java.awt.Graphics2D.rotate()方法的一些代码示例，展示了Graphics2D.rotate()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。Graphics2D.rotate()方法的具体详情如下：
包路径：java.awt.Graphics2D
类名称：Graphics2D
方法名：rotate

Graphics2D.rotate介绍

暂无

代码示例

代码示例来源：origin: jphp-group/jphp

@Signature
public PImage rotate(double angle)
{
  double sin = Math.abs(Math.sin(Math.toRadians(angle))),
      cos = Math.abs(Math.cos(Math.toRadians(angle)));
  int w = image.getWidth(null), h = image.getHeight(null);
  int neww = (int) Math.floor(w*cos + h*sin),
      newh = (int) Math.floor(h*cos + w*sin);
  BufferedImage bimg = new BufferedImage(neww, newh, image.getType());
  Graphics2D g = bimg.createGraphics();
  g.translate((neww-w)/2, (newh-h)/2);
  g.rotate(Math.toRadians(angle), w/2, h/2);
  g.drawRenderedImage(image, null);
  g.dispose();
  this.image = bimg;
  return this;
}

代码示例来源：origin: looly/hutool

/**
 * 旋转图片为指定角度<br>
 * 来自：http://blog.51cto.com/cping1982/130066
 * 
 * @param degree 旋转角度
 * @return 旋转后的图片
 * @since 3.2.2
 */
public Img rotate(int degree) {
  final BufferedImage image = getValidSrcImg();
  int width = image.getWidth(null);
  int height = image.getHeight(null);
  final Rectangle rectangle = calcRotatedSize(width, height, degree);
  final BufferedImage targetImg = new BufferedImage(rectangle.width, rectangle.height, getTypeInt());
  Graphics2D graphics2d = targetImg.createGraphics();
  // 抗锯齿
  graphics2d.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BILINEAR);
  // 从中心旋转
  graphics2d.translate((rectangle.width - width) / 2, (rectangle.height - height) / 2);
  graphics2d.rotate(Math.toRadians(degree), width / 2, height / 2);
  graphics2d.drawImage(image, 0, 0, null);
  graphics2d.dispose();
  this.targetImage = targetImg;
  return this;
}

代码示例来源：origin: looly/hutool

/**
 * 旋转图片为指定角度<br>
 * 来自：http://blog.51cto.com/cping1982/130066
 * 
 * @param degree 旋转角度
 * @return 旋转后的图片
 * @since 3.2.2
 */
public Img rotate(int degree) {
  final BufferedImage image = getValidSrcImg();
  int width = image.getWidth(null);
  int height = image.getHeight(null);
  final Rectangle rectangle = calcRotatedSize(width, height, degree);
  final BufferedImage targetImg = new BufferedImage(rectangle.width, rectangle.height, getTypeInt());
  Graphics2D graphics2d = targetImg.createGraphics();
  // 抗锯齿
  graphics2d.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BILINEAR);
  // 从中心旋转
  graphics2d.translate((rectangle.width - width) / 2, (rectangle.height - height) / 2);
  graphics2d.rotate(Math.toRadians(degree), width / 2, height / 2);
  graphics2d.drawImage(image, 0, 0, null);
  graphics2d.dispose();
  this.targetImage = targetImg;
  return this;
}

代码示例来源：origin: org.apache.poi/poi

graphics.translate(anchor.getX() + anchor.getWidth(), anchor.getY());
graphics.scale(-1, 1);
graphics.translate(-anchor.getX(), -anchor.getY());
graphics.translate(anchor.getX(), anchor.getY() + anchor.getHeight());
graphics.scale(1, -1);
graphics.translate(-anchor.getX(), -anchor.getY());
graphics.translate(centerX, centerY);
graphics.rotate(Math.toRadians(rotation));
graphics.translate(-centerX, -centerY);

代码示例来源：origin: BroadleafCommerce/BroadleafCommerce

g.translate((neww-w)/2, (newh-h)/2);
g.rotate(Math.toRadians(amount), w/2, h/2);
g.drawRenderedImage(src, null);
g.dispose();

代码示例来源：origin: stackoverflow.com

super.paintComponent(g);
Graphics2D g2d = (Graphics2D) g;
g2d.translate(this.getWidth() / 2, this.getHeight() / 2);
g2d.rotate(theta);
g2d.translate(-image.getWidth(this) / 2, -image.getHeight(this) / 2);
g2d.drawImage(image, 0, 0, null);

代码示例来源：origin: org.apache.poi/poi-ooxml

graphics.translate(bounds.x, bounds.y);
graphics.scale(1, -1);
graphics.translate(0, -bounds.height
    + graphics.getFontMetrics().getMaxCharBounds(graphics)
    .getHeight());
graphics.translate(-bounds.width, 0);
graphics.rotate(txtAngle);

代码示例来源：origin: org.apache.poi/poi

final double ax = anchor.getX();
final double ay = anchor.getY();
graphics.translate(ax + anchor.getWidth(), ay);
graphics.scale(-1, 1);
graphics.translate(-ax, -ay);
final double cx = anchor.getCenterX();
final double cy = anchor.getCenterY();
graphics.translate(cx, cy);
graphics.rotate(Math.toRadians(textRot));
graphics.translate(-cx, -cy);
final double cy = anchor.getCenterY();
graphics.translate(cx, cy);
graphics.rotate(Math.toRadians(deg));
graphics.translate(-cx, -cy);

代码示例来源：origin: i2p/i2p.i2p

void transform(int x, int y, double angle) {
  gd.translate(x, y);
  gd.rotate(angle);
}

代码示例来源：origin: magefree/mage

private Graphics2D getAftermathHalfContext(Graphics2D g) {
  Graphics2D g2 = (Graphics2D) g.create();
  g2.translate(rightHalf.x, rightHalf.y);
  g2.rotate(Math.PI / 2);
  g2.translate(0, -rightHalf.w);
  return g2;
}

代码示例来源：origin: magefree/mage

private Graphics2D getLeftHalfContext(Graphics2D g) {
  Graphics2D g2 = (Graphics2D) g.create();
  g2.translate(leftHalf.x, leftHalf.y);
  g2.rotate(-Math.PI / 2);
  g2.translate(-leftHalf.cw, 0);
  return g2;
}

代码示例来源：origin: magefree/mage

private Graphics2D getRightHalfContext(Graphics2D g) {
  Graphics2D g2 = (Graphics2D) g.create();
  g2.translate(rightHalf.x, rightHalf.y);
  g2.rotate(-Math.PI / 2);
  g2.translate(-rightHalf.cw, 0);
  return g2;
}

代码示例来源：origin: magefree/mage

private static BufferedImage rotateImage(BufferedImage image, double angle) {
  double sin = Math.abs(Math.sin(angle)), cos = Math.abs(Math.cos(angle));
  int width = image.getWidth(), height = image.getHeight();
  int newWidth = (int) Math.floor(width * cos + height * sin), newHeight = (int) Math.floor(height * cos + width * sin);
  GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment();
  GraphicsDevice gs = ge.getDefaultScreenDevice();
  GraphicsConfiguration gc = gs.getDefaultConfiguration();
  BufferedImage result = gc.createCompatibleImage(newWidth, newHeight, Transparency.TRANSLUCENT);
  Graphics2D g = result.createGraphics();
  g.translate((newWidth - width) / 2, (newHeight - height) / 2);
  g.rotate(angle, width / 2, height / 2);
  g.drawRenderedImage(image, null);
  g.dispose();
  return result;
}

代码示例来源：origin: stackoverflow.com

/**
 * Rotates an image. Actually rotates a new copy of the image.
 * 
 * @param img The image to be rotated
 * @param angle The angle in degrees
 * @return The rotated image
 */
public static Image rotate(Image img, double angle)
{
  double sin = Math.abs(Math.sin(Math.toRadians(angle))),
      cos = Math.abs(Math.cos(Math.toRadians(angle)));

  int w = img.getWidth(null), h = img.getHeight(null);

  int neww = (int) Math.floor(w*cos + h*sin),
    newh = (int) Math.floor(h*cos + w*sin);

  BufferedImage bimg = toBufferedImage(getEmptyImage(neww, newh));
  Graphics2D g = bimg.createGraphics();

  g.translate((neww-w)/2, (newh-h)/2);
  g.rotate(Math.toRadians(angle), w/2, h/2);
  g.drawRenderedImage(toBufferedImage(img), null);
  g.dispose();

  return toImage(bimg);
}

代码示例来源：origin: stackoverflow.com

public static BufferedImage rotate(BufferedImage image, double angle) {
  double sin = Math.abs(Math.sin(angle)), cos = Math.abs(Math.cos(angle));
  int w = image.getWidth(), h = image.getHeight();
  int neww = (int)Math.floor(w*cos+h*sin), newh = (int) Math.floor(h * cos + w * sin);
  GraphicsConfiguration gc = getDefaultConfiguration();
  BufferedImage result = gc.createCompatibleImage(neww, newh, Transparency.TRANSLUCENT);
  Graphics2D g = result.createGraphics();
  g.translate((neww - w) / 2, (newh - h) / 2);
  g.rotate(angle, w / 2, h / 2);
  g.drawRenderedImage(image, null);
  g.dispose();
  return result;
}

private static GraphicsConfiguration getDefaultConfiguration() {
  GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment();
  GraphicsDevice gd = ge.getDefaultScreenDevice();
  return gd.getDefaultConfiguration();
}

代码示例来源：origin: nguyenq/tess4j

/**
 * Rotates an image.
 *
 * @param image the original image
 * @param angle the degree of rotation
 * @return a rotated image
 */
public static BufferedImage rotateImage(BufferedImage image, double angle) {
  double theta = Math.toRadians(angle);
  double sin = Math.abs(Math.sin(theta));
  double cos = Math.abs(Math.cos(theta));
  int w = image.getWidth();
  int h = image.getHeight();
  int newW = (int) Math.floor(w * cos + h * sin);
  int newH = (int) Math.floor(h * cos + w * sin);
  BufferedImage tmp = new BufferedImage(newW, newH, image.getType());
  Graphics2D g2d = tmp.createGraphics();
  g2d.setRenderingHint(RenderingHints.KEY_INTERPOLATION,
      RenderingHints.VALUE_INTERPOLATION_BICUBIC);
  g2d.translate((newW - w) / 2, (newH - h) / 2);
  g2d.rotate(theta, w / 2, h / 2);
  g2d.drawImage(image, 0, 0, null);
  g2d.dispose();
  return tmp;
}

代码示例来源：origin: magefree/mage

protected void paintComponent(Graphics g) {
  super.paintComponent(g);
  float ex = endX - startX;
  float ey = endY - startY;
  if (ex == 0 && ey == 0) {
    return;
  }
  float length = (float) Math.sqrt(ex * ex + ey * ey);
  float bendPercent = (float) Math.asin(ey / length);
  if (endX > startX) {
    bendPercent = -bendPercent;
  }
  Area arrow = getArrow(length, bendPercent);
  Graphics2D g2d = (Graphics2D) g;
  g2d.translate(startX, startY);
  g2d.rotate(Math.atan2(ey, ex));
  g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
  g2d.setComposite(composite);
  g2d.setColor(this.color);
  g2d.fill(arrow);
  g2d.setColor(Color.BLACK);
  g2d.draw(arrow);
}

代码示例来源：origin: apache/pdfbox

g.translate(x, y);
g.rotate(Math.toRadians(rotation));
g.drawImage(image, 0, 0, null);
g.dispose();

代码示例来源：origin: magefree/mage

@Override
public void paint(Graphics g) {
  if (!displayEnabled) {
    return;
  }
  if (!isValid()) {
    super.validate();
  }
  Graphics2D g2d = (Graphics2D) g;
  if (transformAngle < 1) {
    float edgeOffset = (cardWidth + cardXOffset) / 2f;
    g2d.translate(edgeOffset * (1 - transformAngle), 0);
    g2d.scale(transformAngle, 1);
  }
  if (tappedAngle + flippedAngle > 0) {
    g2d = (Graphics2D) g2d.create();
    float edgeOffset = cardWidth / 2f;
    double angle = tappedAngle + (Math.abs(flippedAngle - FLIPPED_ANGLE) < 0.001 ? 0 : flippedAngle);
    g2d.rotate(angle, cardXOffset + edgeOffset, cardYOffset + cardHeight - edgeOffset);
  }
  super.paint(g2d);
}

代码示例来源：origin: stackoverflow.com

Graphics2D g2 = (Graphics2D)g.create();
g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
g2.translate(100, 150);
g2.rotate(0.4);
g2.setPaint(Color.red);
g2.fill(s);

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