Save graph

[Ibrahim]

Hi

Can I save the resulted graph in PNG or JEPG format in a file, if yes please tell me how.

thanks

ibrahim

[Jean-Daniel Fekete]

You can look at the createImage(File file, float scale) in infovis.panel.MainFrameDecorator

Here is the code
Component comp = visualization.getComponent();
        while (comp != null && ! (comp instanceof JScrollPane)) {
            comp = comp.getParent();
        }
        if (comp == null) {
            logger.error("Visualization not in a scroll pane");
            return;
        }
        JScrollPane scroll = (JScrollPane) comp;
        Dimension savedSize = scroll.getSize();
        Rectangle savedBounds = scroll.getBounds();
        Rectangle bounds = new Rectangle(savedBounds);
        Dimension d = scroll.getPreferredSize();
        scroll.setSize(d);
        scroll.validate();
       
        bounds.x = 0;
        bounds.y = 0;
        bounds.width = (int) (d.width * scale);
        bounds.height = (int) (d.height * scale);
        BufferedImage image = null;
        try {
            image = new BufferedImage(
                    bounds.width,
                    bounds.height,
                    BufferedImage.TYPE_INT_RGB);
        }
        catch(OutOfMemoryError e) {
            logger.error("Out of memory creating image", e);
            JOptionPane.showMessageDialog(
                    null,
                    "Error",
                    "Out of memory creating image",
                    JOptionPane.ERROR_MESSAGE);
            //parent.add(comp);
            scroll.setSize(savedSize);
            scroll.validate();
            return;
        }
        Graphics2D g2d = (Graphics2D) image.getGraphics();
//        g2d.setColor(comp.getBackground());
//        g2d.fill(bounds);
//        visualization.paint(g2d, bounds);
        g2d.scale(scale, scale);
        comp.paint(g2d);

        try {
            ImageIO.write(image, "png", file);
        } catch (IOException e) {
            logger.error("Cannot write png file " + file, e);
        }
        image.flush();
        image = null;
        scroll.setSize(savedSize);
        scroll.validate();