Examples of java.awt.geom.AffineTransform.concatenate()

java.awt.geom.AffineTransform.concatenate()
Concatenates an AffineTransform Tx to this AffineTransform Cx in the most commonly useful way to provide a new user space that is mapped to the former user space by Tx. Cx is updated to perform the combined transformation. 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 like this: Cx'(p) = Cx(Tx(p)) In matrix notation, if this transform Cx is represented by the matrix [this] and Tx is represented by the matrix [Tx] then this method does the following:
```
 [this] = [this] x [Tx] 
```
@param Tx the AffineTransform object to beconcatenated with this AffineTransform object. @see #preConcatenate @since 1.2

                int x = dim.width / 2;
                int y = dim.height / 2;
                AffineTransform t = AffineTransform.getTranslateInstance(x, y);
                t.scale(.5, .5);
                t.translate(-x, -y);
                t.concatenate(at);
                setRenderingTransform(t);
            }
        }
    }

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        AffineTransform tr = 
            AffineTransform.getTranslateInstance(position.getX(), 
                                                 position.getY());
        if (transform != null) {
            tr.concatenate(transform);
        }


        Rectangle2D bounds = null;
        if (dShape != null) {
            if (fillPaint != null)

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        if (outline == null) {
            AffineTransform tr = 
    AffineTransform.getTranslateInstance(position.getX(), 
                 position.getY());
            if (transform != null) {
                tr.concatenate(transform);
            }
            Shape glyphChildrenOutline = null;
            if (glyphChildrenNode != null) {
                glyphChildrenOutline = glyphChildrenNode.getOutline();
            }

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    public void draw(Graphics2D graphics2D) {
        AffineTransform tr = 
      AffineTransform.getTranslateInstance(position.getX(),
             position.getY());
        if (transform != null) {
            tr.concatenate(transform);
        }


        // paint the dShape first
        if (dShape != null) {
            Shape tShape = tr.createTransformedShape(dShape);

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     *  Multiplies two 2x3 matrices of double precision values
     */
    private double[] matrixMultiply(double[] matrix1, double[] matrix2) {
        double[] product = new double[6];
        AffineTransform transform1 = new AffineTransform(matrix1);
        transform1.concatenate(new AffineTransform(matrix2));
        transform1.getMatrix(product);
        return product;
    }


}

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                         * and then rotate the text before computing the bounds. The scale results in some whitespace around
                         * the unrotated top and bottom of the text that normally wouldn't be present if unscaled, but
                         * is added by the standard Excel autosize.
                         */
                        AffineTransform trans = new AffineTransform();
                        trans.concatenate(AffineTransform.getRotateInstance(style.getRotation()*2.0*Math.PI/360.0));
                        trans.concatenate(
                        AffineTransform.getScaleInstance(1, fontHeightMultiple)
                        );
                        width = Math.max(width, ((layout.getOutline(trans).getBounds().getWidth() / colspan) / defaultCharWidth) + cell.getCellStyle().getIndention());
                    } else {

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                         * the unrotated top and bottom of the text that normally wouldn't be present if unscaled, but
                         * is added by the standard Excel autosize.
                         */
                        AffineTransform trans = new AffineTransform();
                        trans.concatenate(AffineTransform.getRotateInstance(style.getRotation()*2.0*Math.PI/360.0));
                        trans.concatenate(
                        AffineTransform.getScaleInstance(1, fontHeightMultiple)
                        );
                        width = Math.max(width, ((layout.getOutline(trans).getBounds().getWidth() / colspan) / defaultCharWidth) + cell.getCellStyle().getIndention());
                    } else {
                        width = Math.max(width, ((layout.getBounds().getWidth() / colspan) / defaultCharWidth) + cell.getCellStyle().getIndention());

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                         * and then rotate the text before computing the bounds. The scale results in some whitespace around
                         * the unrotated top and bottom of the text that normally wouldn't be present if unscaled, but
                         * is added by the standard Excel autosize.
                         */
                        AffineTransform trans = new AffineTransform();
                        trans.concatenate(AffineTransform.getRotateInstance(style.getRotation()*2.0*Math.PI/360.0));
                        trans.concatenate(
                        AffineTransform.getScaleInstance(1, fontHeightMultiple)
                        );
                        width = Math.max(width, ((layout.getOutline(trans).getBounds().getWidth() / colspan) / defaultCharWidth) + cell.getCellStyle().getIndention());
                    } else {

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                         * the unrotated top and bottom of the text that normally wouldn't be present if unscaled, but
                         * is added by the standard Excel autosize.
                         */
                        AffineTransform trans = new AffineTransform();
                        trans.concatenate(AffineTransform.getRotateInstance(style.getRotation()*2.0*Math.PI/360.0));
                        trans.concatenate(
                        AffineTransform.getScaleInstance(1, fontHeightMultiple)
                        );
                        width = Math.max(width, ((layout.getOutline(trans).getBounds().getWidth() / colspan) / defaultCharWidth) + cell.getCellStyle().getIndention());
                    } else {
                        width = Math.max(width, ((layout.getBounds().getWidth() / colspan) / defaultCharWidth) + cell.getCellStyle().getIndention());

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            // Build proper transform from gradient space to page space
            // ('Patterns' don't get userspace transform).
            AffineTransform transform;
            transform = new AffineTransform(getBaseTransform());
            transform.concatenate(getTransform());
            transform.concatenate(gp.getTransform());


            List theMatrix = new java.util.ArrayList();
            double [] mat = new double[6];
            transform.getMatrix(mat);

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