Ciao Albert, on 2.0.2 the "extended" keyword might not work. See http://jira.codehaus.org/browse/GEOT-3455
I would try 2.0.3 or 2.1.1 Let us know. Regards, Simone Giannecchini ------------------------------------------------------- Ing. Simone Giannecchini GeoSolutions S.A.S. Founder Via Poggio alle Viti 1187 55054 Massarosa (LU) Italy phone: +39 0584 962313 fax: +39 0584 962313 mob: +39 333 8128928 http://www.geo-solutions.it http://geo-solutions.blogspot.com/ http://www.youtube.com/user/GeoSolutionsIT http://www.linkedin.com/in/simonegiannecchini http://twitter.com/simogeo ------------------------------------------------------- On Tue, Jun 28, 2011 at 2:02 PM, ALBERT Aurélien <[email protected]> wrote: > I use this layer to get elevation data and generate a 3d mesh on client side. > > Now, I use this style : > > <ColorMapEntry color="#000000" > quantity="0"/> > <ColorMapEntry color="#0000ff" > quantity="255"/> > <ColorMapEntry color="#000100" > quantity="256"/> > <ColorMapEntry color="#0001ff" > quantity="511"/> > <ColorMapEntry color="#000200" > quantity="512"/> > <ColorMapEntry color="#0002ff" > quantity="767"/> > <ColorMapEntry color="#000300" > quantity="768"/> > <ColorMapEntry color="#0003ff" > quantity="1023"/> > <ColorMapEntry color="#000400" > quantity="1024"/> > > So, on client side, I can read the pixel RGB value and compute elevation > value : > > For example : > > - pixel color is #0001ba > => elevation value is 0x0001ba > => elevation value is 442 > > And retrieve my elevation values with maximum precision (but the elevation > map is very ugly to see). > > Then I use another layer to get a texture to put on my mesh, and the result > is fine ! > > By the way, the difficulty is that the client software is a browser 3d > plugin, and I can easily process only bitmap data, processing other data need > a lot of work. > > Regards, > > Aurelien > > > -----Message d'origine----- > De : [email protected] [mailto:[email protected]] De la part de > Andrea Aime > Envoyé : lundi 27 juin 2011 20:48 > À : ALBERT Aurélien > Cc : Simone Giannecchini; Mike; [email protected] > Objet : Re: RE : [Geoserver-users] GeoServer with elevation data > > On Mon, Jun 27, 2011 at 8:02 PM, ALBERT Aurélien > <[email protected]> wrote: >> I use Geoserver 2.0.2 >> >> I tried following styles : >> >> <ColorMap extended="true"> >> <ColorMapEntry color="#000000" quantity="-500" label="nodata" >> opacity="0.0" /> >> <ColorMapEntry color="#000000" quantity="-100" label="values" >> opacity="1.0" /> >> <ColorMapEntry color="#00FFFF" quantity="100" label="values" >> opacity="1.0" /> >> </ColorMap> >> >> <ColorMap extended="true"> >> <ColorMapEntry color="#000000" quantity="-500" label="nodata" >> opacity="0.0" /> >> <ColorMapEntry color="#000000" quantity="-100" label="values" >> opacity="1.0" /> >> <ColorMapEntry color="#FFFFFF" quantity="100" label="values" >> opacity="1.0" /> >> </ColorMap> >> >> I was expecting, for data range -100 to 100, to get pixel colors from >> #000000 to #00FFFF : >> >> #000001 >> #000002 >> #000003 >> #000004 >> ... >> #0000FF >> #0001FF >> #0002FF >> #0003FF >> ... >> #00FFFF > > In order to get from fully black to cyan you expect the ramp to pass > by solid blue? > It makes some sense, but not sure how that could be coded. > What you get is the simplest color ramp implementation, linearly interpolate > all > color component from first to second color. > > Getting a random gradient generator from the net you get exactly the same > behavior: > http://tools.dynamicdrive.com/gradient/ > > If you want to go through blue you have to configure it as the value for 0, > then you'll get from white to solid black to solid blue, and then from blue > to cyan. > > Out of curiosity, what kind of application generates gradients the way > you'd expect? > > Cheers > Andrea > > -- > ------------------------------------------------------- > Ing. Andrea Aime > GeoSolutions S.A.S. > Tech lead > > Via Poggio alle Viti 1187 > 55054 Massarosa (LU) > Italy > > phone: +39 0584 962313 > fax: +39 0584 962313 > > http://www.geo-solutions.it > http://geo-solutions.blogspot.com/ > http://www.youtube.com/user/GeoSolutionsIT > http://www.linkedin.com/in/andreaaime > http://twitter.com/geowolf > > ------------------------------------------------------- > > ------------------------------------------------------------------------------ All of the data generated in your IT infrastructure is seriously valuable. Why? It contains a definitive record of application performance, security threats, fraudulent activity, and more. Splunk takes this data and makes sense of it. IT sense. And common sense. http://p.sf.net/sfu/splunk-d2d-c2 _______________________________________________ Geoserver-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/geoserver-users
