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Re: [udig-devel] Re: export png
Woot - now all we need to do is wrap this up as an "Export Wizard" for an official release :-) 
Jody

Andrea Antonello wrote:

Alright, forget what I posted before, at least a part,
there is an easier way to get the image, instead of make all the renderers draw on a new created image :), there is a method which I 
didn't notice (do things fast, do them fast...) , which is:
RenderedImage image = activeMap.getRenderManager().getImage();

And that is it. Rendered with everything on it, I guess that takes
directly the panels graphic.

Very nice... all reduced to really few lines of code...
Ciao
Andrea




On Fri, 17 Aug 2007 09:16:31 +0200 "andrea antonello"
<andrea.antonello@xxxxxxxxx> probably wrote:


I just noticed that doing it that way the labels are not exported...
any idea about that?

Andrea

On 8/17/07, Andrea Antonello <andrea.antonello@xxxxxxxxx> wrote:

For own usage I needed to implement a simple png export. Since
JGrass would contain it but some more time is needed to its first
release :) and since the code is really few, I paste it below. I
remember someone was interested in that, so enjoy :)

PS: is there another way to deal with the filedialog or do I have to
use the asyncexec?

_____________________________________________________________________

        public void op(Display display, Object target,
IProgressMonitor monitor) throws Exception {

                IMap activeMap = ApplicationGIS.getActiveMap();

                List<IRenderer> renderers =
activeMap.getRenderManager().getRenderers();

                int w =
activeMap.getRenderManager().getMapDisplay().getWidth(); int h =
activeMap.getRenderManager().getMapDisplay().getHeight();
BufferedImage bImage = new BufferedImage(w, h,
BufferedImage.TYPE_INT_ARGB); Graphics2D g2d = (Graphics2D)
bImage.createGraphics();

                for (IRenderer renderer : renderers) {
                        renderer.render(g2d, monitor);
                }

                goGo = false;

                Display.getDefault().asyncExec(new Runnable() {

                        public void run() {
                                FileDialog fileDialog = new
FileDialog(new Shell(Display .getDefault()), SWT.SAVE);
                                fileDialog.setText("Choose the
output png file"); path = fileDialog.open();
                                goGo = true;
                        }
                });
                while (!goGo) {
                        try {
                                Thread.sleep(300);
                        } catch (InterruptedException e) {
                                e.printStackTrace();
                        }
                }
                goGo = false;

                if (path == null || path.length() < 1) {
                        return;
                }

                ImageIO.write(bImage, "png", new File(path));

        }

_____________________________________________________________________


Ciao
Andrea


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