Hi Daniele,
i was able to recover the error. It was my faulty user code again.
I did not set the tiling parameters for the geotiff correctly. I switched
the GeoTiff file writing method to
try
{
GeoTiffFormat format = new GeoTiffFormat();
GeoTiffWriteParams wp = new GeoTiffWriteParams();
File filetiff = new File(filename);
GeoTiffWriter gcw = (GeoTiffWriter)format.getWriter(filetiff);
wp.setCompressionMode(GeoTiffWriteParams.MODE_EXPLICIT);
wp.setCompressionType("LZW");
wp.setTilingMode(GeoToolsWriteParams.MODE_DEFAULT);
ParameterValueGroup paramWrite = format.getWriteParameters();
paramWrite.parameter(AbstractGridFormat.GEOTOOLS_WRITE_PARAMS.getName().toString()).setValue(wp);
gcw.write(toWrite,
(GeneralParameterValue[])paramWrite.values().toArray(new
GeneralParameterValue[1]));
}
catch (Exception e1)
{
e1.printStackTrace();
}
and it performs well.
Thank you,
Matthias Hofmann
> Hi Matthias,
> if you can share a whole test case (I mean: a fully coded java class as
> well
> as the sample data needed to test it) I can take a look on it.
> How do you "View" the output geotiff? (Which software are you using?)
> Could you run a "gdalinfo -stats youroutputfile.tif" and let me know what
> is
> reported?
>
> Please, let me know.
> Best Regards,
> Daniele
>
>
> On Tue, Feb 23, 2010 at 11:51 AM, Matthias Hofmann <
> [email protected]> wrote:
>
>> Hi,
>>
>> i have a problem with the GeoTiff writer:
>> I create a GridCoverage which is correctly colored and showed, for e.g.
>> by
>> executing gc.show(). Writing it into png and normal tif-files works also
>> without any problem, but not in GeoTiff.
>> For inking the image i use the SLDParser with an associated style file.
>>
>> Coupling the rendered image to the GridCoverage2D is processed here:
>>
>> ////////////////
>> GridCoverage2D toWrite =
>> CoverageFactoryFinder.getGridCoverageFactory(null)
>> .create("Precipitation",
>>
>> ((GridCoverage2D)rsh_SLD.getOutput()).geophysics(false).getRenderedImage(),
>> env,gsdPrec,null,null);
>> ///////////////
>>
>> Writing the Geotiff is processed here:
>>
>> ///////////////
>> GeoTiffFormat format = new GeoTiffFormat();
>> /*final File writeFile = new File("Test.tiff");
>> final GridCoverageWriter writer =
>> format.getWriter(writeFile);
>> toWrite.show();*/
>>
>> GeoTiffWriteParams wp = new GeoTiffWriteParams();
>>
>> wp.setCompressionMode(GeoTiffWriteParams.MODE_EXPLICIT);
>> wp.setCompressionType("LZW");
>> ParameterValueGroup paramWrite =
>> format.getWriteParameters();
>>
>>
>> paramWrite.parameter(AbstractGridFormat.GEOTOOLS_WRITE_PARAMS.getName().toString()).setValue(wp);
>>
>> try
>> {
>> File filetiff = new File(filename);
>> GeoTiffWriter gcw = (GeoTiffWriter)format.getWriter(filetiff);
>> gcw.write(toWrite,
>> (GeneralParameterValue[])paramWrite.values().toArray(new
>> GeneralParameterValue[1]));
>> gcw.dispose();
>> }
>> catch (Exception e)
>> {
>> e.printStackTrace();
>> }
>> /////////////////
>>
>> The written files size is about 3MB so i think it is not empty, but it
>> is
>> only black.
>>
>> Any ideas?
>>
>> Thank you,
>>
>> Matthias Hofmann
>>
>>
>>
>> ------------------------------------------------------------------------------
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>
>
>
> --
> -------------------------------------------------------
> Eng. Daniele Romagnoli
> Software Engineer
>
> GeoSolutions S.A.S.
> Via Carignoni 51
> 55041 Camaiore (LU)
> Italy
>
> phone: +39 0584983027
> fax: +39 0584983027
> mob: +39 328 0559267
>
>
> http://www.geo-solutions.it
>
> -------------------------------------------------------
>
------------------------------------------------------------------------------
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Try the new software tools for yourself. Speed compiling, find bugs
proactively, and fine-tune applications for parallel performance.
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http://p.sf.net/sfu/intel-sw-dev
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