public static BufferedImage rotateImage(BufferedImage image, double theta) {
int degrees = (int) Math.abs(Math.toDegrees(theta));
double xCenter = image.getWidth() / 2;
double yCenter = image.getHeight() / 2;
AffineTransform rotateTransform = AffineTransform.getRotateInstance(-theta, xCenter, yCenter);
// Translation adjustments so image still centered after rotate width/height changes
if (image.getHeight() != image.getWidth() && degrees != 180 && degrees != 0) {
Point2D origin = new Point2D.Double(0.0, 0.0);
origin = rotateTransform.transform(origin, null);
double yTranslate = origin.getY();
Point2D yMax = new Point2D.Double(0, image.getHeight());
yMax = rotateTransform.transform(yMax, null);
double xTranslate = yMax.getX();
AffineTransform translationAdjustment =
AffineTransform.getTranslateInstance(-xTranslate, -yTranslate);
rotateTransform.preConcatenate(translationAdjustment);
}
AffineTransformOp op = new AffineTransformOp(rotateTransform, AffineTransformOp.TYPE_BILINEAR);
// Have to recopy image because of JDK bug #4723021, AffineTransformationOp throwing exception
// sometimes
image = copyImage(image, BufferedImage.TYPE_INT_ARGB);
// Need to create filter dest image ourselves since AffineTransformOp's own dest image creation
// throws exceptions in some cases.
Rectangle bounds = op.getBounds2D(image).getBounds();
BufferedImage finalImage =
new BufferedImage(
(int) bounds.getWidth(), (int) bounds.getHeight(), BufferedImage.TYPE_INT_ARGB);
return op.filter(image, finalImage);
}
/**
* @param drop
* @param i
* @return
*/
public static BufferedImage rotate(final BufferedImage src, final int degree) {
final int w = src.getWidth(null);
final int h = src.getHeight(null);
// final Graphics2D g = image.createGraphics();
// g.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
// RenderingHints.VALUE_ANTIALIAS_ON);
final AffineTransform at = new AffineTransform();
at.rotate(degree * Math.PI / 180.0);
Point2D p2din, p2dout;
p2din = new Point2D.Double(0.0, 0.0);
p2dout = at.transform(p2din, null);
double ytrans = p2dout.getY();
double xtrans = p2dout.getX();
p2din = new Point2D.Double(0, h);
p2dout = at.transform(p2din, null);
ytrans = Math.min(ytrans, p2dout.getY());
xtrans = Math.min(xtrans, p2dout.getX());
p2din = new Point2D.Double(w, h);
p2dout = at.transform(p2din, null);
ytrans = Math.min(ytrans, p2dout.getY());
xtrans = Math.min(xtrans, p2dout.getX());
p2din = new Point2D.Double(w, 0);
p2dout = at.transform(p2din, null);
ytrans = Math.min(ytrans, p2dout.getY());
xtrans = Math.min(xtrans, p2dout.getX());
final AffineTransform tat = new AffineTransform();
tat.translate(-xtrans, -ytrans);
at.preConcatenate(tat);
final AffineTransformOp bio = new AffineTransformOp(at, AffineTransformOp.TYPE_BILINEAR);
final Rectangle r = bio.getBounds2D(src).getBounds();
BufferedImage image = new BufferedImage(r.width, r.height, BufferedImage.TYPE_INT_ARGB);
image = bio.filter(src, image);
// final Graphics g = image.getGraphics();
// g.setColor(Color.RED);
// g.drawRect(0, 0, image.getWidth() - 1, image.getHeight() - 1);
// g.dispose();
// try {
// Dialog.getInstance().showConfirmDialog(0, "", "", new
// ImageIcon(image), null, null);
// } catch (final DialogClosedException e) {
// // TODO Auto-generated catch block
// e.printStackTrace();
// } catch (final DialogCanceledException e) {
// // TODO Auto-generated catch block
// e.printStackTrace();
// }
return image;
}
protected void doDrawOnTo(BufferedImageRaster canvas) {
Sector sector = this.getSector();
if (null == sector) {
String message = Logging.getMessage("nullValue.SectorIsNull");
Logging.logger().severe(message);
throw new IllegalArgumentException(message);
}
if (!sector.intersects(canvas.getSector())) {
return;
}
java.awt.Graphics2D g2d = null;
java.awt.Shape prevClip = null;
java.awt.Composite prevComposite = null;
java.lang.Object prevInterpolation = null, prevAntialiasing = null;
try {
int canvasWidth = canvas.getWidth();
int canvasHeight = canvas.getHeight();
// Apply the transform that correctly maps the image onto the canvas.
java.awt.geom.AffineTransform transform =
this.computeSourceToDestTransform(
this.getWidth(),
this.getHeight(),
this.getSector(),
canvasWidth,
canvasHeight,
canvas.getSector());
AffineTransformOp op = new AffineTransformOp(transform, AffineTransformOp.TYPE_BILINEAR);
Rectangle2D rect = op.getBounds2D(this.getBufferedImage());
int clipWidth =
(int) Math.ceil((rect.getMaxX() >= canvasWidth) ? canvasWidth : rect.getMaxX());
int clipHeight =
(int) Math.ceil((rect.getMaxY() >= canvasHeight) ? canvasHeight : rect.getMaxY());
if (clipWidth <= 0 || clipHeight <= 0) {
return;
}
g2d = canvas.getGraphics();
prevClip = g2d.getClip();
prevComposite = g2d.getComposite();
prevInterpolation = g2d.getRenderingHint(RenderingHints.KEY_INTERPOLATION);
prevAntialiasing = g2d.getRenderingHint(RenderingHints.KEY_ANTIALIASING);
// Set the alpha composite for appropriate alpha blending.
g2d.setComposite(java.awt.AlphaComposite.SrcOver);
g2d.setRenderingHint(
RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BILINEAR);
g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
g2d.drawImage(this.getBufferedImage(), transform, null);
}
// catch (java.awt.image.ImagingOpException ioe)
// {
// // If we catch a ImagingOpException, then the transformed image has a width or
// height of 0.
// // This indicates that there is no intersection between the source image and the
// canvas,
// // or the intersection is smaller than one pixel.
// }
// catch (java.awt.image.RasterFormatException rfe)
// {
// // If we catch a RasterFormatException, then the transformed image has a width or
// height of 0.
// // This indicates that there is no intersection between the source image and the
// canvas,
// // or the intersection is smaller than one pixel.
// }
catch (Throwable t) {
String reason = WWUtil.extractExceptionReason(t);
Logging.logger().log(java.util.logging.Level.SEVERE, reason, t);
} finally {
// Restore the previous clip, composite, and transform.
try {
if (null != g2d) {
if (null != prevClip) g2d.setClip(prevClip);
if (null != prevComposite) g2d.setComposite(prevComposite);
if (null != prevInterpolation)
g2d.setRenderingHint(RenderingHints.KEY_INTERPOLATION, prevInterpolation);
if (null != prevAntialiasing)
g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, prevAntialiasing);
}
} catch (Throwable t) {
Logging.logger().log(java.util.logging.Level.FINEST, WWUtil.extractExceptionReason(t), t);
}
}
}
