Examples of java.awt.Graphics2D.transform()

java.awt.Graphics2D.transform()
Composes an AffineTransform object with the Transform in this Graphics2D according to the rule last-specified-first-applied. If the current Transform is Cx, the result of composition with Tx is a new Transform Cx'. Cx' becomes the current Transform for this Graphics2D. Transforming a point p by the updated Transform Cx' is equivalent to first transforming p by Tx and then transforming the result by the original Transform Cx. In other words, Cx'(p) = Cx(Tx(p)). A copy of the Tx is made, if necessary, so further modifications to Tx do not affect rendering. @param Tx the AffineTransform object to be composed with the current Transform @see #setTransform @see AffineTransform

                BufferedImage charImage =
                    new BufferedImage(charDim, charDim, BufferedImage.TYPE_INT_ARGB);
                Graphics2D charGraphics = charImage.createGraphics();
                charGraphics.translate(halfCharDim, halfCharDim);
                double angle = (Math.random() - 0.5) * rotationRange;
                charGraphics.transform(AffineTransform.getRotateInstance(angle));
                charGraphics.translate(-halfCharDim, -halfCharDim);
                charGraphics.setColor(textColor);
                charGraphics.setFont(textFont);


                int charX = (int) (0.5 * charDim - 0.5 * charWidth);

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        g.drawImage(image1, null, null);
        
        // Draw Image combine
        Point2D center =  new Point2D.Float(bufferedImage.getHeight() / 2, bufferedImage.getWidth() / 2);
        AffineTransform at = AffineTransform.getTranslateInstance(center.getX( ) - (image2.getWidth(null) / 2), center.getY( ) - (image2.getHeight(null) / 2));
        g.transform(at);
        g.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
        g.drawImage(image2, 0, 0, null);
        Composite c = AlphaComposite.getInstance(AlphaComposite.SRC_OVER, .35f);
        g.setComposite(c);
        at = AffineTransform.getTranslateInstance(center.getX( ) - (bufferedImage.getWidth(null) / 2), center.getY( ) - (bufferedImage.getHeight(null) / 2));

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    final Graphics2D g2 = (Graphics2D) graphics.create();
    //double paperBorder = paperBorderPixel * zoomFactor;


    /** Prepare background **/
    g2.transform(AffineTransform.getScaleInstance(getZoom(), getZoom()));
    g2.setRenderingHint(RenderingHints.KEY_FRACTIONALMETRICS, RenderingHints.VALUE_FRACTIONALMETRICS_ON);


    /** Prepare background **/
    final Rectangle2D pageArea = new Rectangle2D.Float(0, 0, outerW, outerH);
    /**

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        {
          type = BufferedImage.TYPE_3BYTE_BGR;
        }
        final BufferedImage img = new BufferedImage((int) width, (int) height, type);
        final Graphics2D g = (Graphics2D) img.getGraphics();
        g.transform(transform);
        final AffineTransform inv = transform.createInverse();
        Shape fillRect = new Rectangle2D.Double(0, 0, img.getWidth(), img.getHeight());
        fillRect = inv.createTransformedShape(fillRect);
        g.setPaint(paint);
        g.fill(fillRect);

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        //
        // Append transform to selected area
        //
        g.transform(curTxf);


        g.clip(curAOI);


        //
        // Delegate rendering to painter

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        g2d.setPaint(getBackground());
        g2d.fillRect(0, 0, d.width, d.height);


        if (image != null) {
            if (paintingTransform != null) {
                g2d.transform(paintingTransform);
            }
            g2d.drawRenderedImage(image, null);
            g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
                                 RenderingHints.VALUE_ANTIALIAS_OFF);
            Iterator it = overlays.iterator();

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        g2d.setPaint(getBackground());
        g2d.fillRect(0, 0, d.width, d.height);


        if (image != null) {
            if (paintingTransform != null) {
                g2d.transform(paintingTransform);
            }
            g2d.drawRenderedImage(image, null);
            g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
                                 RenderingHints.VALUE_ANTIALIAS_OFF);
            Iterator it = overlays.iterator();

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        // create raster
        WritableRaster raster = cm.createCompatibleWritableRaster(rasterWidth, rasterHeight);
        BufferedImage image = new BufferedImage(cm, raster, false, null);


        Graphics2D graphics = image.createGraphics();
        graphics.transform(xform); // device transform (i.e. DPI)
        drawer.drawTilingPattern(graphics, pattern, colorSpace, color);
        graphics.dispose();


        return image;
    }

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            // flip y-axis
            g.translate(0, height);
            g.scale(1, -1);


            // apply device transform (DPI)
            g.transform(xform);


            // adjust the origin
            g.translate(-clipRect.getX(), -clipRect.getY());


            graphics = g;

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    BufferedImage image = new BufferedImage(100, 80, 
            BufferedImage.TYPE_INT_ARGB);
    Graphics2D g2 = image.createGraphics();
    harness.check(g2.getTransform().isIdentity());
    g2.setTransform(new AffineTransform(1.0, 2.0, 3.0, 4.0, 5.0, 6.0));
    g2.transform(new AffineTransform(7.0, 8.0, 9.0, 10.0, 11.0, 12.0));
    AffineTransform current = g2.getTransform();
    harness.check(current.getScaleX(), 31.0);
    harness.check(current.getScaleY(), 58.0);
    harness.check(current.getShearX(), 39.0);
    harness.check(current.getShearY(), 46.0);

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