Re: Offscreen rendering of 3D display images

Hi Leah,

As Jim suggests, try calling getImage(true).

The system includes tests for getImage() from offscreen
DisplayImplJ3D (java visad.java3d.VisADCanvasJ3D) and
offscreen DisplayImplJ2D ('java Test52' run in the
visad/examples directory), and they work.

If you have a case where getImage() doesn't work, then
please send me a test program that I can use to replicate
the error.


On Tue, 29 Jul 2003, 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
> >

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