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Widget for adjusting raster weights & calculating summed values in a web app environment

Question asked by Esteban_Yves on Jul 19, 2015
Latest reply on Jul 19, 2015 by xander_bakker

Hi - I was wondering if someone has developed a widget similar to what I'm looking for, or could give me any advice (I have no experience writing code!). I need to replicate the functionality of a weighted overlay procedure within a Web App environment - the widget would be an interface that allows the user to adjust the weights of a set of rasters comprising the overlay, using a set of sliders from 1-0, where a query returns the weighted sum of adjusted pixel values (the sum of all weights must = 1, so weights of remaining datasets would need to be automatically proportionally adjusted). Has anyone done anything like this? Any assistance would be great!