Examples of java.awt.Graphics2D.scale()

java.awt.Graphics2D.scale()
Concatenates the current Graphics2D Transform with a scaling transformation Subsequent rendering is resized according to the specified scaling factors relative to the previous scaling. This is equivalent to calling transform(S), where S is an AffineTransform represented by the following matrix:
```
 [   sx   0    0   ] [   0    sy   0   ] [   0    0    1   ] 
```
@param sx the amount by which X coordinates in subsequentrendering operations are multiplied relative to previous rendering operations. @param sy the amount by which Y coordinates in subsequent rendering operations are multiplied relative to previous rendering operations.

                dx = (double)dim.width / (double)h;
                dy = (double)dim.height / (double)w;
                d = Math.min(dx, dy);
                g2d.rotate(Math.PI/2);
                g2d.translate(0, -h*d);
                g2d.scale(d, d);
                if ((int)(h*d + .5) < dim.width)
                    xOffset = (int)((dim.width - h*d)/(2.0*d) + 0.5);
                if ((int)(w*d + .5) < dim.height)
                    yOffset = (int)((dim.height - w*d)/(2.0*d) + 0.5);
                g2d.translate(yOffset, -xOffset);

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                dx = (double)dim.width / (double)h;
                dy = (double)dim.height / (double)w;
                d = Math.min(dx, dy);
                g2d.rotate(-Math.PI/2);
                g2d.translate(-w*d, h*d);
                g2d.scale(d, -d);
                if ((int)(h*d + .5) < dim.width)
                    xOffset = (int)((dim.width - h*d)/(2.0*d) + 0.5);
                if ((int)(w*d + .5) < dim.height)
                    yOffset = (int)((dim.height - w*d)/(2.0*d) + 0.5);
                g2d.translate(-yOffset, -xOffset);

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                dx = (double)dim.width / (double)h;
                dy = (double)dim.height / (double)w;
                d = Math.min(dx, dy);
                g2d.rotate(-Math.PI/2);
                g2d.translate(-w*d, 0);
                g2d.scale(d, d);
                if ((int)(h*d + .5) < dim.width)
                    xOffset = (int)((dim.width - h*d)/(2.0*d) + 0.5);
                if ((int)(w*d + .5) < dim.height)
                    yOffset = (int)((dim.height - w*d)/(2.0*d) + 0.5);
                g2d.translate(yOffset, xOffset);

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        BufferedImage retval = 
            new BufferedImage( width*scaling, height*scaling, BufferedImage.TYPE_BYTE_INDEXED );
        Graphics2D graphics = (Graphics2D)retval.getGraphics();
        graphics.setColor( Color.WHITE );
        graphics.fillRect(0,0,width*scaling, height*scaling);
        graphics.scale( scaling, scaling );
        PageDrawer drawer = new PageDrawer();
        drawer.drawPage( graphics, this, pageDimension );
        
        
        return retval;

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        protected void paintComponent(Graphics g) {
            super.paintComponent(g);
            setCurrentDimension();
            Graphics2D g2d = (Graphics2D) g;
            g2d.translate(0, currentHeight);
            g2d.scale(1, -1);
            drawHisto(g2d);
            g2d.dispose();
        }


        private void drawHisto(Graphics2D g2d) {

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            if (dim == null) dim = new Dimension(w, h);


            dx = (double)dim.width / (double)w;
            dy = (double)dim.height / (double)h;
            d = Math.min(dx, dy);
            g2d.scale(d, d);
            g2d.setRenderingHint(RenderingHints.KEY_INTERPOLATION, m_interpolation);
            Rectangle rect = g2d.getClipBounds();
            if (rect != null)
                g2d.drawImage(m_img, (int)rect.getX(), (int)rect.getY(), (int)(rect.getX() + rect.getWidth()), (int)(rect.getY() + rect.getHeight()), (int)rect.getX(), (int)rect.getY(), (int)(rect.getX() + rect.getWidth()), (int)(rect.getY() + rect.getHeight()), this);
        }

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          //          root.build();


          SimpleImage imgMap = new SimpleImage(imgWidth, imgHeight);


          Graphics2D g = imgMap.getBufferedImg().createGraphics();
          g.scale(resolution_multiplier, resolution_multiplier);
          if (pre_antialias != 0) {
            g.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
            g.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BICUBIC);
          }
          else {

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        double sclX = (double) imgWidth / diagram.getWidth();
        double sclY = (double) imgHeight / diagram.getHeight();
        double scl = sclX < sclY ? sclX : sclY;


        g.scale(scl, scl);


        g.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
        g.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BILINEAR);
        diagram.render(g);

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      // Optimisation for limitating the painting to the visible part only.
      final double clipStart = (int)(getClippingGap()/zoom/ppc)*ppc;


      // Settings the parameters of the graphics.
      adaptGraphicsToViewpoint(g2);
      g2.scale(zoom, zoom);
      g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
    g2.setRenderingHint(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_QUALITY);
    g2.setStroke(STROKE);
      g2.setColor(Color.BLACK);

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            double ph = pageFormat.getImageableHeight();
            if (cw > pw || ch > ph) {
                double scaleX = pw / cw;
                double scaleY = ph / ch;
                double scale = scaleX < scaleY ? scaleX : scaleY;
                g2d.scale(scale, scale);
            }


            editorPane.printAll((Graphics) g2d);
            return Printable.PAGE_EXISTS;
        }

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