Dear [GeoServer Support/Community],
I am seeking guidance on whether it is possible to perform an on-the-fly raster calculation in GeoServer to visualize a filtered layer on the map with Openlayers.
Specifically, I am interested in executing an operation similar to the following GRASS GIS r.mapcalc expression:
if(slope_450m_4326@PERMANENT >= MIN_SLOPE_VAL && slope_450m_4326@PERMANENT <= MAX_SLOPE_VAL, sea_depth_450m_4326@PERMANENT, null())
Where MIN_SLOPE_VAL and MAX_SLOPE_VAL values are user input.
Additionally, I would like to know if such an operation can be achieved through the application of an SLD style, like the application of a filter on a single layer. If GeoServer does not support this functionality directly, I would greatly appreciate your advice on the best method to achieve this result.
Thank you for your assistance and expertise on this matter.
Kind regards,
Sara