Average Overlay

Purpose of the Average Overlay A typical use-case of the Average Overlay is to display model data used in visualize parameters part of a simulation model (e.g. the rainfall overlay). A parameter assigned to a grid-cell can be related to one or more polygon layers. Such layers can be buildings, terrain, areas or neighborhoods.

Steps to generate an Average Overlay - Go to the overlays tab, and select Add Avg - Step 1: Choose a selection type. If you wish to create a spatial smooting, press Create an average Grid Overlay, if you wish to Gain insight into Grid Cell Values, press the latter option - Step 2: Select an attribute value you wish to visualize. By pressing select you can select from a long list of attributes - Step 3: Select, Select Layer. Attributes can be assigned to one of more polygon data layers: buildings, Terrains, Areas and Neighborhoods. In this step you can select the following options for assigning parameter values: - Filter occurrence in Layers: an attribute value is selected from order of occurrence in the polygon data layer value mentioned above - Minimum values in Layers. The minimum value is selected from all layers above - Maximum values in Layers. The maximum value is selected from all layers above - Specific Layer only. A specific layer can be selected. Step 4: Only when selected Create Grid Overlay in Step 1: a smoothing distance value

Press finish to generate the average overlay