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

          trans = AffineTransform.getScaleInstance(smallest, smallest);
          double width = smallest * img.getWidth();
          double height = smallest * img.getHeight();
          double tx = (width < iconSize ? (0d + iconSize - width) / 2 : 0d);
          double ty = (height < iconSize ? (0d + iconSize - height) / 2 : 0d);
          trans.concatenate(AffineTransform.getTranslateInstance(tx, ty));
        } else {
          double tx = (img.getWidth() < iconSize ? (0d + iconSize - img.getWidth()) / 2 : 0d);
          double ty = (img.getHeight() < iconSize ? (0d + iconSize - img.getHeight()) / 2 : 0d);
          trans = AffineTransform.getTranslateInstance(tx, ty);
        }

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          {
            /*
              NOTE: The text rendering matrix is recomputed before each glyph is painted
              during a text-showing operation.
            */
            AffineTransform trm = (AffineTransform)ctm.clone(); trm.concatenate(tm);
            float charHeight = font.getHeight(textChar,fontSize);
            Rectangle2D charBox = new Rectangle2D.Double(
              trm.getTranslateX(),
              contextHeight - trm.getTranslateY() - font.getAscent(fontSize) * tm.getScaleY(),
              charWidth * tm.getScaleX(),

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        of the current transformation matrix (ctm) and the text matrix (tm).
      */
      AffineTransform trm = topDown
        ? new AffineTransform(1, 0, 0, -1, 0, scanner.getCanvasSize().getHeight())
        : new AffineTransform();
      trm.concatenate(ctm);
      trm.concatenate(tm);
      return trm.transform(point, null);
    }


    /**

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      */
      AffineTransform trm = topDown
        ? new AffineTransform(1, 0, 0, -1, 0, scanner.getCanvasSize().getHeight())
        : new AffineTransform();
      trm.concatenate(ctm);
      trm.concatenate(tm);
      return trm.transform(point, null);
    }


    /**
      Resolves the given user-space point to its equivalent device-space one [PDF:1.6:4.2.3],

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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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        AffineTransform s = AffineTransform.getScaleInstance(scale, scale);
        AffineTransform r = AffineTransform.getRotateInstance(angle);
        AffineTransform t = AffineTransform.getTranslateInstance(x, y);


        AffineTransform at = t;
        at.concatenate(r);
        at.concatenate(s);


        return at;
    }

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        AffineTransform r = AffineTransform.getRotateInstance(angle);
        AffineTransform t = AffineTransform.getTranslateInstance(x, y);


        AffineTransform at = t;
        at.concatenate(r);
        at.concatenate(s);


        return at;
    }


    public static void main(String[] args) {

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