Hi Frederik,

   The core components of Batik don't care if the output is buffered,
however the Swing components are pretty well embedded with the notion
of having an offscreen buffer that they can use to update the screen
quickly.  There is no real reason you couldn't change this although
it would be a non-trivial piece of work.

Frederik Santens wrote:
So , the only solution is more memory (since I already tried -Xmx). There is no way to tell batik to paint the svg without buffering the whole thing?

thx
Frederik

At 02:50 26/08/2004, you wrote:

Frederik Santens wrote:

We also need to render the svg of the main application on a screen of 30
metres.


  Can I watch movies at your house :)

When I render an svg on a jpanel of 5000 pixel I already get a
OutofMemory exception. Is this normal?


   Probably, Batik creates an offscreen buffer that it renders into.
The default partition for a Java Virtual machine is pretty paltry so
unless you are already using the -Xmx option to increase the max
memory Batik will allocate I would expect such a window to run out of
memory.

-----Original Message-----
From: Thomas DeWeese [mailto:[EMAIL PROTECTED] Sent: zaterdag 21 augustus 2004 2:24
To: Batik Users
Subject: Re: Zoomwindow on SVGCanvas
Hi Frederik,
I don't there is an easy way to achieve this. Depending on how
much you expect to pan around the document you might consider
rendering the whole document once at the higher resolution and
downsampling for the 'overview' display.
My suspicion is that they just re-render the portion under
the 'magnifier'. You should be able to set things up so that
the two windows use the same GVT tree which would save you the
memory overhead of having two copies of the document in
memory. You can look at the Thumbnail stuff in squiggle for
an example.
[EMAIL PROTECTED] wrote:


We have a main application that renders a SVG. We also have to create

a zoomwindow on that rendered svg in the main application window. This zoomwindow is a floating window. The zoomwindow enlarges the area around the mouse pointer on the main window.

The functionality is more or less the same as in the DWG Viewer
"Free DWG Viewer from Brava!"

(http://www.infograph.com/products/dwgviewer/)

How could we do this without rendering the svg 2 times?


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