Re: BOUNCE sgt@plover.pmel.noaa.gov: Non-member submission from [EdDicks <emd@sanger.ac.uk>]

[Donald Denbo <dwd@pmel.noaa.gov>]

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Ed,
	This isn't something that I have seen or heard about before.  What is 
your platform and JDK version?  SGT uses the layout mechanism that 
exists in java to position the layers.  Normally the LayoutManager used 
is gov.noaa.pmel.sgt.StackedLayout, which positions  all the layers on 
top of one another.  Do you get this same behavior with a different 
Platform/JDK combination?

Don

P.S.  Ed - the SGT mail list now requires membership  before it  will  
allow a submission.  This was done to  stop the spam.

On Wednesday, February 12, 2003, at 09:35  AM, owner-sgt@epic.noaa.gov 
wrote:

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> Date: Wed, 12 Feb 2003 17:35:28 +0000 (GMT)
> From: Ed Dicks <emd@sanger.ac.uk>
> Subject: Re: SGT: Missing Graph Labels + BufferedImage's
> To: sgt@epic.noaa.gov
> Message-id: 
> <Pine.OSF.4.21.0302121714390.14264-100000@can2.sanger.ac.uk>
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>
> Hi,
>
> I mailed a couple of months ago saying that my graph labels were
> not appearing, this was due to the beta release of java (1.4.0) that
> I was using, we've recently found out that there were known bugs in
> awt with this beta version.
> Also, I have some intersting observations when creating a BufferedImage
> from a pane, I went through the usual coding of creating my image etc, 
> viz
>
> BufferedImage image=....
> g=image.getGraphics();
> ..
> .. graphical methods (pane, layer, graph etc) n.b No drawing to screen
> ..
> pane.draw();
> boolean rc=ImageIO.write(image,"png",f);
>
> the image that results is squashed up in the top left corner, but if
> you include the calls..
>     pane.getComponent().addNotify();
>     pane.getComponent().validate();
> before the pane.draw(); this lays out the components properly. However
> this only seems to work if you have 1 layer component, if you have
> more I coded
>     Component[] comps = pane.getComponents();
>     for(int i=0; i < comps.length; i++) {
>       comps[i].addNotify();
>       comps[i].validate();
> but this again gives the squashed up image so the multiple layer
> components are not being layed out properly, does anyone have any
> ideas about this?
> I therefore coded up a collection object (traces) (so this meant I
> only needed 1 layer object) and added that to my graph object with
> graph.setData(traces, attr); but I need to plot each line with a 
> different
> colour, so need a different attribute attr for each of my collection
> objects, is this possible to do?
> Any help would be much appreciated.
>
> Thanks
> Ed
>


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