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

java.awt.geom.AffineTransform.createInverse()
Returns an AffineTransform object representing the inverse transformation. The inverse transform Tx' of this transform Tx maps coordinates transformed by Tx back to their original coordinates. In other words, Tx'(Tx(p)) = p = Tx(Tx'(p)).
If this transform maps all coordinates onto a point or a line then it will not have an inverse, since coordinates that do not lie on the destination point or line will not have an inverse mapping. The getDeterminant method can be used to determine if this transform has no inverse, in which case an exception will be thrown if the createInverse method is called. @return a new AffineTransform object representing theinverse transformation. @see #getDeterminant @exception NoninvertibleTransformException if the matrix cannot be inverted. @since 1.2

            }
        }


        if (clip != null) {
            try {
                at = at.createInverse(); // clip in user space
                Filter filter = node.getGraphicsNodeRable(true);
                clip = at.createTransformedShape(clip);
                node.setClip(new ClipRable8Bit(filter, clip));
            } catch (java.awt.geom.NoninvertibleTransformException ex) {}
        }

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                    } else {
                        try {
                            AffineTransform at;
                            at = svgCanvas.getViewBoxTransform();
                            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());

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                    } else {
                        try {
                            AffineTransform at;
                            at = svgCanvas.getViewBoxTransform();
                            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,

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                    } else {
                        try {
                            AffineTransform at;
                            at = svgCanvas.getViewBoxTransform();
                            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,

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        // We have a partial bound from parent, so map it to gn's
        // coordinate system...
        AffineTransform at = gn.getTransform();
        if (at != null) {
            try {
                at = at.createInverse();
                r2d = at.createTransformedShape(r2d).getBounds2D();
            } catch (NoninvertibleTransformException nte) {
                // Degenerate case return null;
                r2d = null;
            }

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        AffineTransform at = gn.getTransform();
        if (at != null) {
            try {
                // background has a definite bound so map it to gn's
                // coordinate system...
                at = at.createInverse();
                r2d = at.createTransformedShape(r2d).getBounds2D();
            } catch (NoninvertibleTransformException nte) {
                // Degenerate case return null;
                r2d = null;
            }

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            // to the childs user space...


            AffineTransform at = child.getTransform();
            if (at != null) {
                try {
                    at = at.createInverse();
                    ret = new AffineRable8Bit(ret, at);
                } catch (NoninvertibleTransformException nte) {
                    ret = null;
                }
            }

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                                                if (data.getWidth(renderableImpl.io.obs) <= 0 || data.getHeight(renderableImpl.io.obs) <= 0) {
                                                        throw new JXAException(toString() + " image data size was not available!");
                                                }
                                        }
                                        if (!basePtx.isIdentity()) {
                                                basePtx.preConcatenate(baseTx.createInverse());
                                                double[] perspectiveTransform = new double[]{0, 0, renderableImpl.bounds.getWidth(), 0, renderableImpl.bounds.getWidth(), renderableImpl.bounds.getHeight(), 0, renderableImpl.bounds.getHeight()};
                                                basePtx.inverseTransform(perspectiveTransform, 0, perspectiveTransform, 0, 4);
                                                Polygon perspectiveTransformPoly = new Polygon();
                                                for (int i = 0; i < perspectiveTransform.length; i += 2) {
                                                        perspectiveTransformPoly.addPoint((int) perspectiveTransform[i], (int) perspectiveTransform[i + 1]);

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    AffineTransform matrix = new AffineTransform(_transform);
    matrix.translate(dx1, dy1);
    matrix.scale(destWidth / (double) width, destHeight / (double) height);
    double[] m = new double[6];
    try {
      matrix = matrix.createInverse();
    } catch (Exception e) {
      throw new RuntimeException("Unable to get inverse of matrix: "
          + matrix);
    }
    matrix.scale(1, -1);

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        // We have a partial bound from parent, so map it to gn's
        // coordinate system...
        AffineTransform at = gn.getTransform();
        if (at != null) {
            try {
                at = at.createInverse();
                r2d = at.createTransformedShape(r2d).getBounds2D();
            } catch (NoninvertibleTransformException nte) {
                // Degenerate case return null;
                r2d = null;
            }

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