Average Overlay
What the Average overlay is
The Average overlay shows (smoothed) values of a grid cell. With the Average overlay it is possible to create a custom dynamic Grid 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.
Create an Average Overlay
- Select in the editor 'Geo Data' from the ribbon
- Select 'Overlays' from the ribbon bar
- Select the 'Add AVG' overlay
- Follow the steps in the configuration wizard (Average Overlay Wizard) in the panel on the right
Average Overlay Wizard
Selection type
If you wish to create a spatial smooting, choose Create an average Grid Overlay, if you wish to Gain insight into Grid Cell Values, choose the latter option
Select attribute value
Select the attribute from the list of all the attributes your project contains.
Layer
Attributes can be assigned to one of more layers of the 3D model: 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.
===Optional step (when selected Create Grid Overlay in Step 1): a smoothing distance value
Press finish to generate the average overlay
- Select in the editor 'Geo Data' from the ribbon
- Select 'Overlays' from the ribbon bar
- Select the desired overlay from the list of active overlays on the left panel
- Select 'remove' from the bottom of the left panel
- Confirm the removal in the pop up confirmation message