I'm building a custom web app for local land conservation organizations using ESRI's Web App Builder. I have several raster models that include Biodiversity, Climate Resilience, Agriculture, Soil types, Slope, SWAP data etc that I would like the client to be able to apply weighted modeling to and create their own models.
The overlay model in Geoplanner using an image service is a great example of what I am trying to accomplish and so is this: http://www.arcgis.com/home/item.html?id=ad89d62e4b304396a7296be6898e61f2
I've experimented a little with trying to host my own weighted overlay geoprocessing service with ArcServer with little luck. Has anyone ever found a way to host a weighted overly widget in Web App Builder without having to write a custom tool?