I think I see the problem. 3800 x 3800 x 4 = 57 MB. JUMP uses image
buffers for large layers, one for each layer with over 100 features, plus
there is Swing double buffering. So if you had 3 large layers, it would
take over 400 MB just to draw the image. For 6 it would almost 800 MB.
I was able to get 3800 to work with just a single layer. It would probably
work for two.
I do have a fix for this problem in my new printing code. It will avoid
both the image buffers and the Swing buffers so it can render with only the
single output image of 57 MB for 3800.
regards,
Larry
On Nov 8, 2007 11:00 AM, Larry Becker <[EMAIL PROTECTED]> wrote:
> I'll need more details in order to reproduce the problem. The raster
> layers in OpenJump are probably the issue. SkyJUMP supports only a few
> raster implementations that we have coded ourselves. OpenJump supports many
> different, each with their own advantages and disadvantages.
>
> Try it with only vector layers in OpenJump and it should work the same on
> both.
>
> regards,
>
> Larry
>
>
> On Nov 8, 2007 10:46 AM, Giuseppe Aruta < [EMAIL PROTECTED]> wrote:
>
> > Hi all and Larry,
> > I tested the new "export view to Image" with the new
> > implementations to set the resolution.
> >
> > I tried to exporte an image (with raster and vectors
> > layers) with the maximun resolution 3800, both with
> > OpenJUMP and SKyJUMP and compare the time and the
> > output.
> >
> > After a good 60 seconds, OpenJUMP gave a message of
> > "out of memory" and stopped to work. I was not able
> > to export the image. Note that OJ has a limit memory
> > usage to 256M
> >
> > On the other hand SkyJUMP worked fine. Even if its
> > limit is only to 128 M, it exported the image in 20
> > seconds
> >
> > I wander if it is possible to solve it.
> >
> > Regards
> >
> > Peppe
> >
> >
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