Re: [Geotools-gt2-users] Problems reading huge rasters

[Christian M. <chr...@nv...>]

What do you want to do with this large image in memory ? 

I never worded with ArgGrid rasters but I would suggest you download 

http://fwtools.maptools.org/ 

and use gdal_retile.py to build tiles and pyramids. Afterwards you can use 
the geotools imagemosaic mdoule to process the tiles from the file system or 
imagemosaic-jdbc to do the same having the tiles in a jdbc database. 

 


César Martínez Izquierdo writes: 

> I need to process huge rasters with GeoTools, but it seems I've found
> its limit :-( 
> 
> INFO: Unable to find crs, continuing with default WGS4 CRS
> Exception in thread "main" java.lang.IllegalArgumentException:
> Dimensions (width=59000 height=46000) are too large
> 	at java.awt.image.SampleModel.<init>(SampleModel.java:112)
> 	at java.awt.image.ComponentSampleModel.<init>(ComponentSampleModel.java:128)
> 	at javax.media.jai.ComponentSampleModelJAI.<init>(ComponentSampleModelJAI.java:73)
> 	at javax.media.jai.FloatDoubleColorModel.createCompatibleSampleModel(FloatDoubleColorModel.java:1003)
> 	at it.geosolutions.imageio.plugins.arcgrid.AsciiGridsImageReader.initializeReader(AsciiGridsImageReader.java:344)
> 	at it.geosolutions.imageio.plugins.arcgrid.AsciiGridsImageReader.setInput(AsciiGridsImageReader.java:320)
> 	at org.geotools.gce.arcgrid.ArcGridReader.<init>(ArcGridReader.java:184)
> 	at org.geotools.gce.arcgrid.ArcGridFormat.getReader(ArcGridFormat.java:157)
> 	at org.geotools.gce.arcgrid.ArcGridFormat.getReader(ArcGridFormat.java:106)
> 	at etclusi.tests.gt.TestArcGrid.main(TestArcGrid.java:24) 
> 
> 
> The relevant code follows: 
> 
> 		File file = new File("d:\\bigtab\\mosaic.asc");
> 		ArcGridFormat agf = new ArcGridFormat();
> 		GridCoverageReader reader = agf.getReader(file); 
> 
> Have you found a similar problem? Is there any workaround?
> I see it is a problem with JAI... is there any chance to replace the
> "limited" classes with another non-JAIs classes? 
> 
> Regards, 
> 
> César Martínez Izquierdo 
> 
> -- 
> - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
>    César Martínez Izquierdo
>    GIS developer
>    -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -
>    ETC-LUSI: http://etc-lusi.eionet.europa.eu/
>    Universitat Autònoma de Barcelona (SPAIN)
> - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 
> 
> ------------------------------------------------------------------------------
> Come build with us! The BlackBerry&reg; Developer Conference in SF, CA
> is the only developer event you need to attend this year. Jumpstart your
> developing skills, take BlackBerry mobile applications to market and stay 
> ahead of the curve. Join us from November 9&#45;12, 2009. Register now&#33;
> http://p.sf.net/sfu/devconf
> _______________________________________________
> Geotools-gt2-users mailing list
> Geo...@li...
> https://lists.sourceforge.net/lists/listinfo/geotools-gt2-users