Ciao Pete, you can try to use the makeColorTransparentMethod on a renderedImage obtained from a coverage and then wrap the result as a coverage again.
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, Mar 23, 2009 at 10:33 AM, Pete Ballack <[email protected]> wrote: > Hi Simone, > > thats correct. > > I'll take a look at the ImageWorker class, but any help is appreciated. > > Thanks > > On Mon, Mar 23, 2009 at 1:35 AM, Simone Giannecchini > <[email protected]> wrote: >> Dear Pete, >> If I understood correctly your statements, you need to make exactly >> one color transparent, right? >> If my undertanding is correct I'll try to guide you through using the >> ImageWorker class. >> >> 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 Sat, Mar 21, 2009 at 3:56 PM, Pete Ballack >> <[email protected]> wrote: >>> Hi everybody, >>> >>> I have an Gridcoverage (grayscale) and I'm am displaying it over some >>> other images. I successfully applied an alpha, but it covers more than >>> just one value. What i need is too hide just one specific color index. >>> >>> Example: >>> My grayscale image has values from [0,255] and when i display it I >>> only want values from [1,255] to be shown. >>> >>> >>> Does anybody have an idea how to accomplish that task? >>> >>> Thanks >>> >>> ------------------------------------------------------------------------------ >>> Apps built with the Adobe(R) Flex(R) framework and Flex Builder(TM) are >>> powering Web 2.0 with engaging, cross-platform capabilities. Quickly and >>> easily build your RIAs with Flex Builder, the Eclipse(TM)based development >>> software that enables intelligent coding and step-through debugging. >>> Download the free 60 day trial. http://p.sf.net/sfu/www-adobe-com >>> _______________________________________________ >>> Geotools-gt2-users mailing list >>> [email protected] >>> https://lists.sourceforge.net/lists/listinfo/geotools-gt2-users >>> >> > > ------------------------------------------------------------------------------ > Apps built with the Adobe(R) Flex(R) framework and Flex Builder(TM) are > powering Web 2.0 with engaging, cross-platform capabilities. Quickly and > easily build your RIAs with Flex Builder, the Eclipse(TM)based development > software that enables intelligent coding and step-through debugging. > Download the free 60 day trial. http://p.sf.net/sfu/www-adobe-com > _______________________________________________ > Geotools-gt2-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/geotools-gt2-users > ------------------------------------------------------------------------------ _______________________________________________ Geotools-gt2-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/geotools-gt2-users
