Yep, the rescale op is the problem.
Do you have a 32 bit float or integer raster. As far as I can remember,
integer rasters should work fine, float is causing the problem. I also
tried some different implemenations for the rescale operation, but none was
working for float values.
Cheers
Christian
On Mon, Nov 4, 2013 at 8:32 AM, nroberts <nataliya_robe...@yahoo.com.au>wrote:
> Hi Christian,
>
> thank you for the suggestion!
>
> I have upgraded to 10.1 and the situation is a bit better, but I am still
> having a problem with my 32bit raster, albeit a slightly different one -
> all
> I can see now is a solid black image filling an entire image area in the
> Layer Preview.
>
> It looks to me as rescaleImage still doesn't rescale single band 32 bit
> raster image correctly: if I check image properties after rescale
> operation,
> the underlying raster contains all '0' values.
>
> Here is what I tried so far in an attempt to diagnose the problem:
> * exported raster into a .tiff file and reimported it into GeoServer using
> GeoTiff plugin - it appears to work fine (i.e I can see expected
> visualisation in the Layer Preview and featureinfo displays correct
> information).
> * commented out ImageComposerThread.rescaleImage - Layer Preview displays
> raster correctly (as long as I don't zoom out)
> * tried to create GridCoverage2D using GridCoverageFactory.create() method
> that accepts MathTransform and using this transform to scale instead of
> rescaling the image beforehand (this approach doesn't work with zoom out
> either)
>
> Since I am no expert in image processing or coverages, I am not sure how
> best to fix this.
>
> I may be doing something unconventional when creating my raster, so, just
> in
> case, here is a list of sql commands I use to create test data:
>
>
>
> Thanks
> Nat
>
> ( I am using geoserver 2.4.1 and geotools 10.1 version)
>
>
>
> Christian Mueller-3 wrote
> > Some weeks ago, I did some major changes. Please switch to the lastest
> > version or check out trunk from github.
> >
> > Christian
> >
> >
> > On Thu, Oct 31, 2013 at 12:45 PM, Andrea Aime
> > <
>
> > andrea.aime@
>
> > >wrote:
> >
> >> On Thu, Oct 31, 2013 at 12:34 PM, nroberts <
>
> > nataliya_roberts@.com
>
> > >wrote:
> >>
> >>> Hi Christian,
> >>>
> >>> I am using 9.5.
> >>>
> >>> I checked trunk svn a few weeks back (assuming this is a correct
> >>> location
> >>> for it:
> >>>
> >>>
> http://svn.osgeo.org/geotools/trunk/modules/plugin/imagemosaic-jdbc/src/main/java/org/geotools/gce/imagemosaic/jdbc
> >>> )
> >>> and didn't spot any changes in the code in comparison to my my 9.5
> >>> version.
> >>> Should I try version 10+?
> >>>
> >>
> >> Way off the mark I'm afraid, GeoTools has not been using svn for a long
> >> time now.
> >> The sources are on github:
> >> https://github.com/geotools/geotools
> >>
> >> Cheers
> >> Andrea
> >>
> >> --
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> >> developers love is also attractive to malware creators. Download this
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> >> keep
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> >
> > --
> > DI Christian Mueller MSc (GIS), MSc (IT-Security)
> > OSS Open Source Solutions GmbH
> >
> >
> ------------------------------------------------------------------------------
> > Android is increasing in popularity, but the open development platform
> > that
> > developers love is also attractive to malware creators. Download this
> > white
> > paper to learn more about secure code signing practices that can help
> keep
> > Android apps secure.
> >
> http://pubads.g.doubleclick.net/gampad/clk?id=65839951&iu=/4140/ostg.clktrk
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> Sent from the GeoServer - User mailing list archive at Nabble.com.
>
>
> ------------------------------------------------------------------------------
> Android is increasing in popularity, but the open development platform that
> developers love is also attractive to malware creators. Download this white
> paper to learn more about secure code signing practices that can help keep
> Android apps secure.
> http://pubads.g.doubleclick.net/gampad/clk?id=65839951&iu=/4140/ostg.clktrk
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--
DI Christian Mueller MSc (GIS), MSc (IT-Security)
OSS Open Source Solutions GmbH
------------------------------------------------------------------------------
Android is increasing in popularity, but the open development platform that
developers love is also attractive to malware creators. Download this white
paper to learn more about secure code signing practices that can help keep
Android apps secure.
http://pubads.g.doubleclick.net/gampad/clk?id=65839951&iu=/4140/ostg.clktrk
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