Hi Stefan,
I seem to be duplicating the Zoom bar behavior you reported without the
speed mod. If I click and drag the zoom bar slider, I get very slow redraw
times on the order of ten seconds, however If I click the zoom bar it is
faster. I think JUMP is starting multiple render threads while the zoom bar
slider is being dragged. This could explain the slow behavior. Also the
very large polygons that you are testing with don't seem to be simplified by
the ZoomBar's randomGeometries() unless the number of geometries is greater
than 100.
Can you test it again and see if the large slowdown only occurs when you
drag the zoom bar (in any version of JUMP).
thanks,
Larry
On 3/24/07, Larry Becker <[EMAIL PROTECTED]> wrote:
Hi Stefan,
It occurs to me that I never use the Zoom bar so I probably haven't
tested it. The Zoom bar does a more radical kind of decimation
simplification itself. It might be interacting with the Java2DConverter
decimation in a bad way. I'll check it out.
thanks,
Larry
On 3/24/07, Stefan Steiniger <[EMAIL PROTECTED]> wrote:
>
> Hei Larry,
>
> Larry Becker schrieb:
> > Hi Stefan,
> >
> > 1. Is there somewhere I can get a copy of the shape file to test
> with?
>
> i upload it here:
> ftp://ftp.geo.unizh.ch/pub/sstein/openjump/brdlaender.zip
>
> > 2. Is the speed up working for other large shape files?
> i have not tested
> > 3. Does it perform better if you zoom to full extents instead of
> using
> > the Zoom bar.
> yes - (or as usual)
> > 4. What is the Committed Memory showing after you load the file?
> mhm.. not that much: 11MB
> > 5. After the blocked behavior, does the Committed Memory go down?
> 14 MB
>
> btw: panning is fine, and if i use Zoom to scale it is fine as well.
>
> thanx for taking care
> stefan :)
>
> >
> > Thanks for testing. I have been waiting for other developers to try
> > the decimator mod to see if there might be issues.
> >
> > regards,
> > Larry
> >
> > On 3/24/07, *Stefan Steiniger* <[EMAIL PROTECTED]
> > <mailto: [EMAIL PROTECTED]>> wrote:
> >
> > Hei Larry and Bob,
> >
> > i did test somthing after i implemented the new speed up code.
> > I loaded a large shp file with 16 very large polygons (> 5000
> points)
> > and zoom to full extent.
> > When i moved the slider of the zoom bar (zooming out) the systems
> does
> > nothing (is blocked) for more than 30 seconds (or even more).
> > If make the same thing with an older version of jump it takes one
> 2 sek
> > after seeing the outlines and one sec more for filling.
> >
> > any suggestions?
> > probably an issue which could be solved by the bbox?
> >
> > stefan
> >
> > Larry Becker schrieb:
> > > Right. That would be:
> > >
> > >
> >
>
http://skyjump.cvs.sourceforge.net/skyjump/skyjump/com/vividsolutions/jump/workbench/ui/renderer/java2D/Java2DConverter.java?view=log
> > > <
> >
>
http://skyjump.cvs.sourceforge.net/skyjump/skyjump/com/vividsolutions/jump/workbench/ui/renderer/java2D/Java2DConverter.java?view=log
> >
> > >
> > > with an incidental mod to:
> > >
> > >
> >
http://skyjump.cvs.sourceforge.net/skyjump/skyjump/com/vividsolutions/jump/workbench/ui/renderer/style/WKTFillPattern.java?view=log
>
> > > <
> >
http://skyjump.cvs.sourceforge.net/skyjump/skyjump/com/vividsolutions/jump/workbench/ui/renderer/style/WKTFillPattern.java?view=log
> >
> > >
> > > regards,
> > > Larry
> > >
> >
> >
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