The behavior you're experiencing seems the expected one: - You have pixels covering a very large area, they are rendered as square blocks - If you enable interporpolation, say bilinear, it's just acting on a 2x2 pixel block, giving the blurry effect
Looks like you'd like to have a full interpolation algorithm acting on the image, say a Inverse Distance Weighted acting on the pixel centers and treating them as sparse points instead, and work off larger pixel distances (eventually account for all those in the view before GeoServer does not have such an ability ... maybe one could try chaining the Barnes Surfaces algorithm, or modify the polygon extraction process to allow for smoothing, and then chain that one too, but... rendering transformation chaining is not working very well in general.... Looks like you need to go down this path: https://github.com/geoserver/geoserver/wiki/Successfully-requesting-and-integrating-fixes,-improvements-and-new-features-in-GeoServer Cheers Andrea On Thu, Feb 17, 2022 at 12:33 AM Bessette-Halsema, Dominique E via Geoserver-users <geoserver-users@lists.sourceforge.net> wrote: > Hello > > > > I have an sld that uses jiffle and the output is a 1 or a 0 > > > > I would like my style to appear “smoothed” out or interpolated on the > map. When the colormap type=ramp and the map is zoomed out it appears > smooth but when I start to zoom in it appears blurry (see attachement). I > understand I should use “type=”values”” to mark all the values of 1 red but > then the image appears blocky (see attachment). Is there a way I can > assign the values of 1 red and smooth out the edges? > > > > <?xml version="1.0" encoding="UTF-8"?><sld:StyledLayerDescriptor xmlns= > http://www.opengis.net/sld xmlns:sld=http://www.opengis.net/sld xmlns:gml= > http://www.opengis.net/gml xmlns:ogc=http://www.opengis.net/ogc > version="1.0.0"> > > <sld:NamedLayer> > > <sld:Name>TEst</sld:Name> > > <sld:UserStyle> > > <sld:Name>Testsld:Name> > > <sld:Title>TSEts</sld:Title> > > <sld:FeatureTypeStyle> > > <sld:Name>name</sld:Name> > > <sld:Transformation> > > <ogc:Function name="ras:Jiffle"> > > <ogc:Function name="parameter"> > > <ogc:Literal>coverage</ogc:Literal> > > </ogc:Function> > > <ogc:Function name="parameter"> > > <ogc:Literal>script</ogc:Literal> > > <ogc:Literal> > > data = src[0]; > > gph = src[1] > > dted = src[2]; > > dest = (( data > 80.0 ) && (gph > < dted) ) ? 1 : 0; > > </ogc:Literal> > > </ogc:Function> > > </ogc:Function> > > </sld:Transformation> > > <sld:Rule> > > <sld:RasterSymbolizer> > > <sld:ColorMap> > > <sld:ColorMapEntry color="#ffffff" opacity="0.0" > quantity="0" label="No Impact"/> > > <sld:ColorMapEntry color="#FF0000" opacity="1.0" > quantity="1" label="Impact"/> > > </sld:ColorMap> > > <sld:ContrastEnhancement/> > > </sld:RasterSymbolizer> > > </sld:Rule> > > </sld:FeatureTypeStyle> > > </sld:UserStyle> > > </sld:NamedLayer> > > </sld:StyledLayerDescriptor> > > > > > > Thanks! > > Dominique Bessette > > > _______________________________________________ > Geoserver-users mailing list > > Please make sure you read the following two resources before posting to > this list: > - Earning your support instead of buying it, but Ian Turton: > http://www.ianturton.com/talks/foss4g.html#/ > - The GeoServer user list posting guidelines: > http://geoserver.org/comm/userlist-guidelines.html > > If you want to request a feature or an improvement, also see this: > https://github.com/geoserver/geoserver/wiki/Successfully-requesting-and-integrating-new-features-and-improvements-in-GeoServer > > > Geoserver-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/geoserver-users > -- Regards, Andrea Aime == GeoServer Professional Services from the experts! Visit http://bit.ly/gs-services-us for more information. == Ing. Andrea Aime @geowolf Technical Lead GeoSolutions Group phone: +39 0584 962313 fax: +39 0584 1660272 mob: +39 333 8128928 https://www.geosolutionsgroup.com/ http://twitter.com/geosolutions_it ------------------------------------------------------- Con riferimento alla normativa sul trattamento dei dati personali (Reg. UE 2016/679 - Regolamento generale sulla protezione dei dati “GDPR”), si precisa che ogni circostanza inerente alla presente email (il suo contenuto, gli eventuali allegati, etc.) è un dato la cui conoscenza è riservata al/i solo/i destinatario/i indicati dallo scrivente. Se il messaggio Le è giunto per errore, è tenuta/o a cancellarlo, ogni altra operazione è illecita. Le sarei comunque grato se potesse darmene notizia. This email is intended only for the person or entity to which it is addressed and may contain information that is privileged, confidential or otherwise protected from disclosure. We remind that - as provided by European Regulation 2016/679 “GDPR” - copying, dissemination or use of this e-mail or the information herein by anyone other than the intended recipient is prohibited. If you have received this email by mistake, please notify us immediately by telephone or e-mail
_______________________________________________ Geoserver-users mailing list Please make sure you read the following two resources before posting to this list: - Earning your support instead of buying it, but Ian Turton: http://www.ianturton.com/talks/foss4g.html#/ - The GeoServer user list posting guidelines: http://geoserver.org/comm/userlist-guidelines.html If you want to request a feature or an improvement, also see this: https://github.com/geoserver/geoserver/wiki/Successfully-requesting-and-integrating-new-features-and-improvements-in-GeoServer Geoserver-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/geoserver-users
