List of usage examples for java.awt.geom AffineTransform clone
public Object clone()
From source file:com.liusoft.dlog4j.util.ImageUtils.java
/** * ???/*from ww w .j av a2s. com*/ * ????? * 3: 180 * 6: 90 * 8: 27090 * @param img_fn * @param orient * @throws IOException */ public static boolean rotateImage(String img_fn, int orient, String dest_fn) throws IOException { double radian = 0; switch (orient) { case 3: radian = 180.0; break; case 6: radian = 90.0; break; case 8: radian = 270.0; break; default: return false; } BufferedImage old_img = (BufferedImage) ImageIO.read(new File(img_fn)); int width = old_img.getWidth(); int height = old_img.getHeight(); BufferedImage new_img = new BufferedImage(height, width, BufferedImage.TYPE_INT_RGB); Graphics2D g2d = new_img.createGraphics(); AffineTransform origXform = g2d.getTransform(); AffineTransform newXform = (AffineTransform) (origXform.clone()); // center of rotation is center of the panel double xRot = 0; double yRot = 0; switch (orient) { case 3: xRot = width / 2.0; yRot = height / 2.0; case 6: xRot = height / 2.0; yRot = xRot; break; case 8: xRot = width / 2.0; yRot = xRot; break; default: return false; } newXform.rotate(Math.toRadians(radian), xRot, yRot); g2d.setTransform(newXform); // draw image centered in panel g2d.drawImage(old_img, 0, 0, null); // Reset to Original g2d.setTransform(origXform); FileOutputStream out = new FileOutputStream(dest_fn); try { ImageIO.write(new_img, "JPG", out); } finally { out.close(); } return true; }
From source file:com.t_oster.visicut.misc.Helper.java
/** * Compute the rotation angle of an affine transformation. * Counter-clockwise rotation is considered positive. * * method taken from http://javagraphics.blogspot.com/ * * @return rotation angle in radians (beween -pi and pi), * or NaN if the transformation is bogus. */// w ww .j a v a2 s. co m public static double getRotationAngle(AffineTransform transform) { transform = (AffineTransform) transform.clone(); // Eliminate any post-translation transform.preConcatenate( AffineTransform.getTranslateInstance(-transform.getTranslateX(), -transform.getTranslateY())); Point2D p1 = new Point2D.Double(1, 0); p1 = transform.transform(p1, p1); return Math.atan2(p1.getY(), p1.getX()); }
From source file:com.liusoft.dlog4j.action.PhotoAction.java
/** * /*w w w . j a v a 2s . c o m*/ * @param ctx * @param imgURL * @param orient * @return * @throws IOException */ protected boolean rotate(HttpContext ctx, String imgURL, int orient) throws IOException { PhotoSaver saver = this.getPhotoSaver(); InputStream inImg = saver.read(ctx, imgURL); BufferedImage old_img = (BufferedImage) ImageIO.read(inImg); int width = old_img.getWidth(); int height = old_img.getHeight(); BufferedImage new_img = new BufferedImage(height, width, BufferedImage.TYPE_INT_RGB); Graphics2D g2d = new_img.createGraphics(); AffineTransform origXform = g2d.getTransform(); AffineTransform newXform = (AffineTransform) (origXform.clone()); // center of rotation is center of the panel double radian = 0; double xRot = 0; double yRot = 0; switch (orient) { case 3: radian = 180.0; xRot = width / 2.0; yRot = height / 2.0; case 6: radian = 90.0; xRot = height / 2.0; yRot = xRot; break; case 8: radian = 270.0; xRot = width / 2.0; yRot = xRot; break; default: return false; } newXform.rotate(Math.toRadians(radian), xRot, yRot); g2d.setTransform(newXform); // draw image centered in panel g2d.drawImage(old_img, 0, 0, null); // Reset to Original g2d.setTransform(origXform); OutputStream out = saver.write(ctx, imgURL); try { ImageIO.write(new_img, "JPG", out); } finally { out.close(); } return true; }
From source file:org.apache.pdfbox.rendering.TilingPaint.java
/** * Not called in TexturePaint subclasses, which is why we wrap TexturePaint. *///from w w w.ja v a 2 s . c o m @Override public PaintContext createContext(ColorModel cm, Rectangle deviceBounds, Rectangle2D userBounds, AffineTransform xform, RenderingHints hints) { AffineTransform xformPattern = (AffineTransform) xform.clone(); // applies the pattern matrix with scaling removed AffineTransform patternNoScale = patternMatrix.createAffineTransform(); patternNoScale.scale(1 / patternMatrix.getScalingFactorX(), 1 / patternMatrix.getScalingFactorY()); xformPattern.concatenate(patternNoScale); return paint.createContext(cm, deviceBounds, userBounds, xformPattern, hints); }
From source file:org.eclipse.birt.chart.device.svg.SVGGraphics2D.java
public void transform(AffineTransform arg0) { transforms.concatenate((AffineTransform) arg0.clone()); }