Hi, the data attribute are the features of the layer you defined the style for. So this should not be passed in a separate attribute. All other attributes you can define with the env parameter in the request. Look at this: http://docs.geoserver.org/stable/en/user/styling/sld-extensions/substitution.html
For BBox and the raster image size there are predefined variables which use the standard parameter of the wms request. Hope that helps. Regards Nikolai Am 24.06.2013 11:16, schrieb apaleja: > Hi I am trying to generate heatmap using Geoserver Transformation SLD > (http://docs.geoserver.org/stable/en/user/styling/sld-extensions/rendering-transform.html#heatmap-generation) > . as mentioned on the page, It requires few parameters: > > - data > - weightAttr > - radiusPixels > - pixelsPerCell > - outputBBOX > - outputWidth and > - outputHeight > > I am able to use it by specifying these parameters directly in SLD as > default parameters. But i am not able to pass it as OpenLayers request. > There is my code: > > var layer = new OpenLayers.Layer.WMS("Heat Map", > "http://port/geoserver/wms";, > { > layers: 'work:cbsa_pop', > format: "image/png", > transparent: "true", > styles:'heatmap', > maxExtent: new OpenLayers.Bounds(-124.269,32.545,-114.354,41.956), > projection: new OpenLayers.Projection("EPSG:4326"), > data:'data_attr', > weightAttr:'w_attr', > radiusPixels:100, > pixelsPerCell:100, > BBOX:new OpenLayers.Bounds(-124.269,32.545,-114.354,41.956), > outputWidth:1000, > outputHeight:1000 > }); > > This way it is not accepting any of the parameter. I am not sure what I am > doing wrong. Any guidance will be helpful. > > > > -- > View this message in context: > http://osgeo-org.1560.x6.nabble.com/How-to-pass-parameters-to-Geoserver-Heatmap-SLD-tp5061851.html > Sent from the GeoServer - User mailing list archive at Nabble.com. > > ------------------------------------------------------------------------------ > This SF.net email is sponsored by Windows: > > Build for Windows Store. > > http://p.sf.net/sfu/windows-dev2dev > _______________________________________________ > Geoserver-users mailing list > Geoserver-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/geoserver-users -- ------------------------------------------------------------------ Dipl.-Ing. (FH) Nikolai Bock, M.Eng. i3mainz - Institut für Raumbezogene Informations- und Messtechnik Fachhochschule Mainz - University of Applied Sciences Lucy-Hillebrand-Straße 2 55128 Mainz, Germany Tel: +49(0)6131 628-1452 Fax: +49(0)6131 628-91452 nikolai.b...@geoinform.fh-mainz.de http://www.i3mainz.fh-mainz.de ------------------------------------------------------------------ ------------------------------------------------------------------------------ This SF.net email is sponsored by Windows: Build for Windows Store. http://p.sf.net/sfu/windows-dev2dev _______________________________________________ Geoserver-users mailing list Geoserver-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/geoserver-users
