Example usage for java.awt.geom AffineTransform clone

Introduction

In this page you can find the example usage for java.awt.geom AffineTransform clone.

Prototype

public Object clone() 

Source Link

Document

Returns a copy of this AffineTransform object.

Usage

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;
}

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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());
}

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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;
}

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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);
}

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From source file:org.eclipse.birt.chart.device.svg.SVGGraphics2D.java

public void transform(AffineTransform arg0) {
    transforms.concatenate((AffineTransform) arg0.clone());
}

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