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

java.awt.geom.AffineTransform.transform()
Transforms the specified ptSrc and stores the result in ptDst. If ptDst is null, a new {@link Point2D}object is allocated and then the result of the transformation is stored in this object. In either case, ptDst, which contains the transformed point, is returned for convenience. If ptSrc and ptDst are the same object, the input point is correctly overwritten with the transformed point. @param ptSrc the specified Point2D to be transformed @param ptDst the specified Point2D that stores theresult of transforming ptSrc @return the ptDst after transformingptSrc and stroring the result in ptDst. @since 1.2

                Point2D tp1 = new Point2D.Double();
                Point2D tp2 = new Point2D.Double();
                Point2D tp3 = new Point2D.Double();
                tr.transform(p1, tp1);
                tr.transform(p2, tp2);
                tr.transform(p3, tp3);
                double tdx12 = tp1.getX()-tp2.getX();
                double tdx13 = tp1.getX()-tp3.getX();
                double tdy12 = tp1.getY()-tp2.getY();
                double tdy13 = tp1.getY()-tp3.getY();

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                 try {
                     t = (AffineTransform) t.createInverse();
                 } catch (NoninvertibleTransformException ni) {
                 }
            }
            p = t.transform(p, null);


            if (isDeselectGesture(evt)) {
                if (selectionNode != null)
                    selectionNode.getRoot()
                        .removeTreeGraphicsNodeChangeListener(this);

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                        try {
                            AffineTransform at = svgCanvas.getRenderingTransform();
                            if (at != null) {
                                at = at.createInverse();
                                Point2D p2d =
                                    at.transform(new Point2D.Float(e.getX(), e.getY()),
                                                 null);
                                statusBar.setXPosition((float)p2d.getX());
                                statusBar.setYPosition((float)p2d.getY());
                                return;
                            }

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                        try {
                            AffineTransform at = svgCanvas.getRenderingTransform();
                            if (at != null) {
                                at = at.createInverse();
                                Point2D o =
                                    at.transform(new Point2D.Float(0, 0),
                                                 null);
                                Point2D p2d =
                                    at.transform(new Point2D.Float(dim.width,
                                                                   dim.height),
                                                 null);

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                                at = at.createInverse();
                                Point2D o =
                                    at.transform(new Point2D.Float(0, 0),
                                                 null);
                                Point2D p2d =
                                    at.transform(new Point2D.Float(dim.width,
                                                                   dim.height),
                                                 null);
                                statusBar.setWidth((float)(p2d.getX() - o.getX()));
                                statusBar.setHeight((float)(p2d.getY() - o.getY()));
                                return;

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                        try {
                            AffineTransform at = svgCanvas.getRenderingTransform();
                            if (at != null) {
                                at = at.createInverse();
                                Point2D o =
                                    at.transform(new Point2D.Float(0, 0),
                                                 null);
                                Point2D p2d =
                                    at.transform(new Point2D.Float(dim.width,
                                                                   dim.height),
                                                 null);

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                                at = at.createInverse();
                                Point2D o =
                                    at.transform(new Point2D.Float(0, 0),
                                                 null);
                                Point2D p2d =
                                    at.transform(new Point2D.Float(dim.width,
                                                                   dim.height),
                                                 null);
                                statusBar.setWidth((float)(p2d.getX() - o.getX()));
                                statusBar.setHeight((float)(p2d.getY() - o.getY()));
                                return;

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         */
        protected Point getClientMouseLocation(Point2D coords) {
            AffineTransform transform = ua.getTransform();
            Point2D p = coords;
            if (transform != null && !transform.isIdentity()) {
                p = transform.transform(coords, null);
            }
            return new Point((int)Math.floor(coords.getX()),
                             (int)Math.floor(coords.getY()));
        }

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        if (log.isTraceEnabled()) {
            log.trace("Current transform: " + at);
        }
        Point2D.Float orgPoint = new Point2D.Float(x, y);
        Point2D.Float transPoint = new Point2D.Float();
        at.transform(orgPoint, transPoint);
        //At this point we have the absolute position in FOP's coordinate system
        
        //Now get PCL coordinates taking the current print direction and the logical page
        //into account.
        Dimension pageSize = currentPageDefinition.getPhysicalPageSize();

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                        try {
                            AffineTransform at = svgCanvas.getRenderingTransform();
                            if (at != null) {
                                at = at.createInverse();
                                Point2D p2d =
                                    at.transform(new Point2D.Float(e.getX(), e.getY()),
                                                 null);
                                statusBar.setXPosition((float)p2d.getX());
                                statusBar.setYPosition((float)p2d.getY());
                                return;
                            }

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