Problem should have been fixed on trunk and 2.0.x.
Please, test.
Simone.
-------------------------------------------------------
Ing. Simone Giannecchini
GeoSolutions S.A.S.
Founder - Software Engineer
Via Carignoni 51
55041  Camaiore (LU)
Italy

phone: +39 0584983027
fax:      +39 0584983027
mob:    +39 333 8128928


http://www.geo-solutions.it
http://geo-solutions.blogspot.com/
http://simboss.blogspot.com/
http://www.linkedin.com/in/simonegiannecchini

-------------------------------------------------------



On Tue, Nov 10, 2009 at 7:00 PM, Gabriel Roldan <grol...@opengeo.org> wrote:
> Hi Simone,
>
> thanks for asking. Please read bellow.
>
> Simone Giannecchini wrote:
>>
>> Just to confirm,
>> do you need any help for GEOS-3612 and GEOS-3592, my understanding is
>> that you do not?
>
> I actually do.
> My understanding of the problem is as follows:
> - this happens only on trunk (2.0.x too I assume), but not on 1.7.x
> - problem is the JPEG writer, or rather the ImageWorker.writeJPEG, does not
> respect the image location and always writes the image starting at 0,0
> - this shows up when doing a tiling request, since the metatile creates each
> tile as a subset of the metatile image. Hence the tiles being RenderedImages
> with x,y origin not at 0,0 suffer from this
> - The following block of code in JPEGMapProducer does not seem to be causing
> any effect:
> if (! jpegNativeAcc&&image.getMinX()!=0 || image.getMinY()!=0) {
>  // I don't make an expliciti copy anymore, hoping that sooner or later:
>  // A> this bug  will be fixed
>  // B> JDK JpegImageWriter will stop making a straight copy of the input
> raster
>  mage= TranslateDescriptor.create(image, new Float(-image.getMinX()), new
> Float(-image.getMinY()), new InterpolationNearest(), null);
> }
>
> the JPEG writer keeps on writing the tile starting at 0,0 of the backing
> image (the metatile one).
>
> So any advice on how to better work around this, if possible, than the patch
> I've attached to GEOS-3612 would be very much welcomed, as that is expected
> to be imposing some performance penalty, though I didn't measure it.
>
> Cheers,
> Gabriel
>
>
> --
> Archive: http://lists.opengeo.org/massgis-dev/archive/2009/11/1257879627043
> To unsubscribe send an email with subject "unsubscribe" to
> massgis-de...@lists.opengeo.org.  Please contact
> massgis-devel-mana...@lists.opengeo.org for questions.
>
>

------------------------------------------------------------------------------
Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day 
trial. Simplify your report design, integration and deployment - and focus on 
what you do best, core application coding. Discover what's new with
Crystal Reports now.  http://p.sf.net/sfu/bobj-july
_______________________________________________
Geoserver-devel mailing list
Geoserver-devel@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/geoserver-devel

Reply via email to