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

java.awt.geom.AffineTransform.preConcatenate()
Concatenates an AffineTransform Tx to this AffineTransform Cx in a less commonly used way such that Tx modifies the coordinate transformation relative to the absolute pixel space rather than relative to the existing user space. Cx is updated to perform the combined transformation. Transforming a point p by the updated transform Cx' is equivalent to first transforming p by the original transform Cx and then transforming the result by Tx like this: Cx'(p) = Tx(Cx(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] = [Tx] x [this] 
```
@param Tx the AffineTransform object to beconcatenated with this AffineTransform object. @see #concatenate @since 1.2

        destPt = aff.transform(destPt, null);




        // Translate what will be at minX,minY to zero, zero
        // which where java2d will think the real minX,minY is.
        aff.preConcatenate(AffineTransform.getTranslateInstance
                           (-destPt.getX(), -destPt.getY()));


        AffineTransformOp op = new AffineTransformOp(aff, hints);


        BufferedImage srcBI, myBI;

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        s = e.getAttributeNS(null, SVG_TRANSFORM_ATTRIBUTE);
        AffineTransform at = AffineTransform.getTranslateInstance(x, y);


        // 'transform'
        if (s.length() != 0) {
            at.preConcatenate
                (SVGUtilities.convertTransform(e, SVG_TRANSFORM_ATTRIBUTE, s));
        }


        return at;
     }

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            GeneralPath path = new GeneralPath(clipNode.getOutline());
            path.setWindingRule(wr);


            AffineTransform at = clipNode.getTransform();
            if (at == null)  at = Tx;
            else             at.preConcatenate(Tx);


            Shape outline = at.createTransformedShape(path);


            // apply the 'clip-path' of the current clipPath's child
            ShapeNode outlineNode = new ShapeNode();

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                    at.inverseTransform(pt0, pt0);
                    at.inverseTransform(pt, pt);
                    double tx = pt0.getX() - pt.getX();
                    double ty = pt0.getY() - pt.getY();
                    at = svgCanvas.getRenderingTransform();
                    at.preConcatenate
                        (AffineTransform.getTranslateInstance(tx, ty));
                    svgCanvas.setRenderingTransform(at);
                } catch (NoninvertibleTransformException ex) { }
            }
        }

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                    if (tat == null) {
                        tat = new AffineTransform();
                    }
                    AffineTransform at = new AffineTransform(cat);
                    try {
                        at.preConcatenate(tat.createInverse());
                        return at;
                    } catch (NoninvertibleTransformException ex) {
                        throw currentElt.createSVGException
                            (SVGException.SVG_MATRIX_NOT_INVERTABLE,
                             "noninvertiblematrix",

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        AffineTransform at =
            AffineTransform.getTranslateInstance(xCurrent - xStart,
                                                 yCurrent - yStart);
        AffineTransform rt =
            (AffineTransform)c.getRenderingTransform().clone();
        rt.preConcatenate(at);
        c.setRenderingTransform(rt);


        if (c.getCursor() == PAN_CURSOR) {
            c.setCursor(previousCursor);
        }

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            }
                


            AffineTransform at = gn.getGlobalTransform();
            Rectangle2D gnBounds = gn.getSensitiveBounds();
            at.preConcatenate(ati);
            if (gnBounds != null)
                gnBounds = at.createTransformedShape(gnBounds).getBounds2D();
                
            if ((gnBounds == null) || 
                (!rect.intersects(gnBounds))) {

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            }
                


            AffineTransform at = gn.getGlobalTransform();
            Rectangle2D gnBounds = gn.getSensitiveBounds();
            at.preConcatenate(ati);
            if (gnBounds != null)
                gnBounds = at.createTransformedShape(gnBounds).getBounds2D();


            if ((gnBounds == null) || 
                (!rect.intersects(gnBounds))) {

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        if (gnBounds == null) return false;




        AffineTransform at = gn.getGlobalTransform();
        at.preConcatenate(ati);


        gnBounds = at.createTransformedShape(gnBounds).getBounds2D();
        if (!rect.intersects(gnBounds))
            return false;

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        try {
            ati = ati.createInverse();
        } catch (NoninvertibleTransformException e) {  }


        AffineTransform at = gn.getGlobalTransform();
        at.preConcatenate(ati);


        gnBounds = at.createTransformedShape(gnBounds).getBounds2D();


        return rect.contains(gnBounds);
    }

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