enter image description hereI would like to create areas from polygons that will visualize an "uncertain" area. So I would like the polygon to appear a little blurred at the edges. Preferably with SLD in GeoServer so that I could get the layer with WMS. I have OpenLayers in frontend so that could be an option as well if its possible that way..

Does anyone know if this can be done?


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I don't think it is currently possible - there is an old enhancement request that would add gradient functionality to GeoServer but it died from lack of support. If it was revived and funded (with either time or money) you could use a negative buffer on your polygon and a gradient fill.

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