Ciao Martin, a way to achieve that is by using the RasterSymbolizer (2.5.0 and successive releases). See http://docs.codehaus.org/display/GEOTOOLS/Raster+Symbolizer+support for more information.
Simone. ------------------------------------------------------- Ing. Simone Giannecchini GeoSolutions S.A.S. Owner - 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://simboss.blogspot.com/ http://www.linkedin.com/in/simonegiannecchini ------------------------------------------------------- On Mon, Feb 16, 2009 at 3:59 PM, Martin Tomko <martin.to...@geo.uzh.ch> wrote: > Dear all, > I am creating a gridcoverage2D (and consequently a geotiff, based on > processing of a source geotiff DEM), and I want to quickly visualize the > results of the analysis. Instead of opening it in some GIS, I would like > to assign a color model to the result.and display it through the show() > method. I tried to change the viewtype, but it does not seem to help. > > My GridCoverage2D is created as follows: > > WritableRaster hor = ...; > GridCoverage2D gchor = gcFactoryhor.create("hor", hor, env); > gchor.view(ViewType.GEOPHYSICS); > gchor.show(); > > and I use a GeoTiffWriter to output the geoTiff. Note that ArcMap open > the geotiff fine (requiring classification to assign colors), as well as > a normal image viewer (e.g., XnView), but the result is just a binary > nodata/anydata black and white rendering. > > I see that it is possible to assign colors in the GridCoverage2D gchor = > gcFactoryhor.create(...) part, but I am not sure how to map the values > in the raster to the colors. Any hints welcome. > > Thanks > Martin > > > ------------------------------------------------------------------------------ > Open Source Business Conference (OSBC), March 24-25, 2009, San Francisco, CA > -OSBC tackles the biggest issue in open source: Open Sourcing the Enterprise > -Strategies to boost innovation and cut costs with open source participation > -Receive a $600 discount off the registration fee with the source code: SFAD > http://p.sf.net/sfu/XcvMzF8H > _______________________________________________ > Geotools-gt2-users mailing list > Geotools-gt2-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/geotools-gt2-users > ------------------------------------------------------------------------------ Open Source Business Conference (OSBC), March 24-25, 2009, San Francisco, CA -OSBC tackles the biggest issue in open source: Open Sourcing the Enterprise -Strategies to boost innovation and cut costs with open source participation -Receive a $600 discount off the registration fee with the source code: SFAD http://p.sf.net/sfu/XcvMzF8H _______________________________________________ Geotools-gt2-users mailing list Geotools-gt2-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/geotools-gt2-users
