Ugo
Thanks for the suggestion. Instead of using a different JDK/Java3D combo
I decided to try out a different file format, png. The colors work great
now. (I don't know why I didn't try this before...)
Thanks so much to everyone for your help and support.
Leah
On Thu, 31 Jul 2003, Ugo Taddei wrote:
> Hello,
>
> Leah Heiss wrote:
>
> >Jim
> >
> >Thanks for the advice. Putting the image capturing into it's own thread
> >has helped alot. And the offscreen rendering is working...mostly.
> >
> >I'm still not getting all the info on my plots before the capture.
> >I'm missing a couple IsoContour maps and my axis labels. Also, my
> >RGB colors are way off. The background is a bright green (my code is
> >setting it to blue) and the color gradation is backwards (blue indicates
> >high values, red low -- should be blue = low values, red = high values).
> >
> >One other interesting tidbit... I can open the created jpg's with Gimp,
> >but Mozilla won't open them saying "File ... cannot be displayed, because
> >it contains errors". So, Gimp likes the files but Mozilla doesn't.
> >Strange.
> >
> >
> Just a note:
>
> I've seen that happen under Windows 2000, JDK 1.3 and Java3D 1.2.
> Actually, I had a lot of problems with off-screen rendering and took
> some time (for Bill ;-) to get it working. Later, checking the generated
> images I noticed that some programs could read the images, though they
> had this color anomaly you described.
>
> Unfortunately I can't help you. But my guess is that the problem may be
> with other system components, and not necessarily with VisAD.
>
> So that's my suggestion. Try with other versions of JDK, and Java3D.
>
> Cheers,
>
> Ugo
>
> >Any more suggestions?
> >
> >Leah
> >
> >
> >On Wed, 30 Jul 2003, Jim Koutsovasilis wrote:
> >
> >
> >
> >>Hello Leah,
> >>
> >>I'm not sure if your question has been aswered, so I'll try to answer it
> >>now.
> >>
> >>In order to call DisplayImpl.getImage(), you will have to call it from a
> >>separate thread.
> >>
> >>For example:
> >>
> >>// Create the thread that will capture the image.
> >>Thread thread = new Thread(new CaptureImageThread());
> >>
> >>// Run the thread.
> >>thread.start();
> >>
> >>/**
> >> * This thread will capture the visad image.
> >> */
> >>public class CaptureImageThread implements Runnable
> >>{
> >> public void run()
> >> {
> >> // Capture image.
> >> boolean wait = true;
> >> BufferedImage image = display.getImage(wait);
> >> }
> >>}
> >>
> >>PS. Your email mentioned offscreen rendering. I have not been
> >>able to get this to work with offscreen rendering on my machine,
> >>but have seen it work on another machine... I tried it again now,
> >>and as you have experienced, my machine seems to lock up. I am
> >>also running Linux, but managed to kill the java program with
> >>a "Ctrl-Z" to put it in the background, and then a "kill -9 %1"
> >>command to kill the process. This could be a threading problem...
> >>
> >>Hope this helps,
> >>Jim.
> >>---
> >>Jim Koutsovasilis
> >>Bureau of Meteorology
> >>jimk@xxxxxxxxxx
> >>
> >>
> >>Leah Heiss wrote:
> >>
> >>
> >>
> >>>Ok. I gave up on the capture of my DisplayImplJ3D and am now calling
> >>>getImage() on a DisplayImplJ2D. The image capture is working, but the
> >>>image isn't "complete" when getImage() is called. The code hasn't added
> >>>the RGB map or a couple of my IsoContour maps.
> >>>
> >>>I tried calling display.waitForTasks() to allow the display time to catch
> >>>up before calling display.getImage( true ). No Dice.
> >>>
> >>>I also tried waiting for all my TRANSFORM_DONE DisplayEvents to complete
> >>>before calling getImage(), but that isn't working either. One suggestion
> >>>given in the mailing list is to call display.disableAction() before
> >>>mucking around with the display and then calling display.enableAction().
> >>>The mailing list entry indicated that this would then cause just ONE
> >>>TRANSFORM_DONE DisplayEvent to be triggered. That doesn't seem to be true.
> >>>
> >>>Any suggestions?
> >>>
> >>>Leah
> >>>
> >>>
> >>>On Mon, 28 Jul 2003, Leah Heiss wrote:
> >>>
> >>>
> >>>
> >>>
> >>>
> >>>>Hello visad-list
> >>>>
> >>>>I'm having problems grabbing an offscreen rendering from a
> >>>>DisplayImplJ3D using the getImage() method. Every time I call getImage(),
> >>>>I'm logged out of my Linux box.
> >>>>
> >>>>This is annoying, frustrating and greatly slowing down my development
> >>>>process.
> >>>>Has anyone else had this problem? I'm not sure if the problem is related
> >>>>to
> >>>>the code I'm using/writing or my window manager or something else. Do
> >>>>any of
> >>>>you any suggestions for me?
> >>>>
> >>>>
> >>>>Thanks
> >>>>
> >>>>Leah
> >>>>
> >>>>
> >>>>
> >>>>
> >>>>
> >>>
> >>>
> >>>
> >>
> >>
> >
> >
> >
> >
>
>
