I would like to use geoserver to subsample a global raster geotiff into many smaller, regional images. These images all need to have their own legend and descriptive text. In all of the examples that I have seen with geoserver, the legend and text overlay and partially obscure the actual raster image. Examples: http://docs.geoserver.org/latest/en/user/services/wms/decoration.html#wms-decoration-types, http://geoserver.geo-solutions.it/edu/en/pretty_maps/map_decorations.html
What I would like is a result like this:
I know that technically the legend graphic can be requested separately, and then combined with the raster through some scripting- but that seems messy.
If this is not possible to do with geoserver alone - perhaps there is an extension that would help? If not, then could someone recommend another type of web service that could do such a thing?