Hi Andreas, as you can see in the spec, the parameters layers and styles can be used together with the sld parameters:
To make the HTTP-GET methods more practical for use, the SLD can also be used in one of two different modes depending on whether the LAYERS parameter is present in the request. If it is not present, then all layers identified in the SLD document are rendered with all defined styles, which is equivalent to the XML-POST method of usage. If the LAYERS parameter is present, then only the layers identified by that parameter are rendered and the SLD is used as a style library. When an SLD is used as a style library, the STYLES CGI parameter is interpreted in the usual way in the GetMap request, except that the handling of the style names is organized so that the styles defined in the SLD take precedence over the named styles stored within the map server. from - Styled Layer Descriptor profile of the Web Map Service Implementation Specification Side 17/18 OGC 05-078r4 I'm always use it in this form with MapServer, to change the style of specified layers. Arnd -----Ursprüngliche Nachricht----- Von: [email protected] [mailto:[email protected]] Im Auftrag von Andreas Hocevar Gesendet: Samstag, 12. September 2009 09:21 An: fsalas Cc: [email protected] Betreff: Re: [OpenLayers-Users] HELP!!! How implement Filter in WMS Layer fsalas wrote: > Andreas, Thanks , but I am beginner and don't have information about > this topic. > > Can you send me illustrative example or information. > > I using GeoServer and I like obtain dynamic maps with some condition. > > I try with this code but don't change the maps. > > .................... > > mapa = new OpenLayers.Map('map', options); > > // setup tiled layer SLD: > "http://deltha:8080/SLD/mapa.sld";, > > faro= new OpenLayers.Layer.WMS( > "topp:mapacuba - Tiled", > "http://deltha:8080/geoserver/wms";, > { > layers: 'topp:faro, > styles: '', > height: '300', > width: '800', > srs: 'EPSG:4267', > format: 'image/png', > tiled: 'true', > tilesOrigin : "-85.49711392680179,19.65266328193469" > }, > {buffer: 0} > ); > > map.addLayers([faro]); > > and after that........ > > mapa.mergeNewParams({sld:'http://localhost:8080/SLD/faros.sld'}); > mapa.redraw(); This won't work. The WMS request requires *either* LAYERS and STYLES, *or* just SLD or SLD_BODY. You can have a look at the Sample requests page in your GeoServer admin frontend. There you will find the following request: http://localhost:8080/geoserver/wms?bbox=-130,24,-66,50&Format=image/png&req uest=GetMap&width=550&height=250&srs=EPSG:4326&SLD_BODY=%3CStyledLayerDescri ptor%20version%3D%221.0.0%22%3E%3CUserLayer%3E%3CName%3Etopp:states%3C/Name% 3E%3CUserStyle%3E%3CName%3EUserSelection%3C/Name%3E%3CFeatureTypeStyle%3E%3C Rule%3E%3CFilter%20xmlns:gml%3D%22http://www.opengis.net/gml%22%3E%3CPropert yIsEqualTo%3E%3CPropertyName%3ESTATE_NAME%3C/PropertyName%3E%3CLiteral%3EIll inois%3C/Literal%3E%3C/PropertyIsEqualTo%3E%3C/Filter%3E%3CPolygonSymbolizer %3E%3CFill%3E%3CCssParameter%20name%3D%22fill%22%3E%23FF0000%3C/CssParameter %3E%3C/Fill%3E%3C/PolygonSymbolizer%3E%3C/Rule%3E%3CRule%3E%3CLineSymbolizer %3E%3CStroke/%3E%3C/LineSymbolizer%3E%3C/Rule%3E%3C/FeatureTypeStyle%3E%3C/U serStyle%3E%3C/UserLayer%3E%3C/StyledLayerDescriptor%3E In your snippet, this would look as follows: faro= new OpenLayers.Layer.WMS( "topp:mapacuba - Tiled", "http://deltha:8080/geoserver/wms";, { //layers: 'topp:faro, //styles: '', sld_body: '%3CStyledLayerDescriptor%20version%3D%221.0.0%22%3E%3CUserLayer%3E%3CName%3 Etopp:faro%3C/Name%3E%3CUserStyle%3E%3CName%3EUserSelection%3C/Name%3E%3CFea tureTypeStyle%3E%3CRule%3E%3CFilter%20xmlns:gml%3D%22http://www.opengis.net/ gml%22%3E%3CPropertyIsEqualTo%3E%3CPropertyName%3ESTATE_NAME%3C/PropertyName %3E%3CLiteral%3EIllinois%3C/Literal%3E%3C/PropertyIsEqualTo%3E%3C/Filter%3E% 3CPolygonSymbolizer%3E%3CFill%3E%3CCssParameter%20name%3D%22fill%22%3E%23FF0 000%3C/CssParameter%3E%3C/Fill%3E%3C/PolygonSymbolizer%3E%3C/Rule%3E%3CRule% 3E%3CLineSymbolizer%3E%3CStroke/%3E%3C/LineSymbolizer%3E%3C/Rule%3E%3C/Featu reTypeStyle%3E%3C/UserStyle%3E%3C/UserLayer%3E%3C/StyledLayerDescriptor%3E', height: '300', width: '800', srs: 'EPSG:4267', format: 'image/png', tiled: 'true', tilesOrigin : "-85.49711392680179,19.65266328193469" }, {buffer: 0} ); map.addLayers([faro]); If you have the contents of sld_body in an external sld file, you just need to replace sld_body with sld, and the value with the url of the sld file (from the perspective of your geoserver instance). Regards, Andreas. > > Best reggards, > Salas > > ----- Original Message ----- From: "Andreas Hocevar" > <[email protected]> > To: "fsalas" <[email protected]> > Cc: <[email protected]> > Sent: Thursday, September 10, 2009 1:42 PM > Subject: Re: [OpenLayers-Users] HELP!!! How implement Filter in WMS > Layer > > >> fsalas wrote: >>> >>> In this time , I have openlayer 2.8 and be studying the filter.html >>> example. >>> >>> my question is >>> >>> 1. ¿ How I can use the WMS Layer with filter? >>> >> >> If you want to do it the OGC way, you have to add a SLD_BODY param >> with an SLD that contains the filter and the symbology you want. >> >> If you are using GeoServer, you can also use the FILTER param directly. >> In that case, you may want to have a look at the CQL_FILTER param >> which provides a more compact filter language. >> >> Regards, >> Andreas. >> >> -- >> Andreas Hocevar >> OpenGeo - http://opengeo.org/ >> Expert service straight from the developers. >> >> > > > ___________________________________ > Dirección de Comunicaciones > Grupo Empresarial GEOCUBA > Este mensaje esta libre de virus. Revisado por Kaspersky Antivirus > ---------------------------------------------------------------------- > Definition count: 2526893 > Definition date: 9/11/2009 > SecurityPlus version: 3.0.5 > > > -- Andreas Hocevar OpenGeo - http://opengeo.org/ Expert service straight from the developers. _______________________________________________ Users mailing list [email protected] http://openlayers.org/mailman/listinfo/users _______________________________________________ Users mailing list [email protected] http://openlayers.org/mailman/listinfo/users
