Attribute Overlay

This article is a stub.

What the Average overlay is

The average overlay of the urbanization attribute.

The Attribute overlay shows (smoothed) values of a grid cell. With the Average overlay it is possible to create a custom dynamic Grid overlay.

Additional information displayed in hover panel

The average overlay of the urbanization attribute and additional information in the hover panel.

When clicking on a specific location in the map of the average overlay, the hover panel gives additional information over the actual value in that specific grid cell.

Purpose of the Average Overlay

A typical use-case of the Average Overlay is to visualize parameters of a simulation model (e.g. the rainfall overlay). A parameter assigned to a grid-cell can be related to one or more layers of the 3D model: Buildings, Terrains, Areas and Neighborhoods.

Create an Average Overlay

How to add the Average overlay:

1. Select in the editor 'Geo Data' from the ribbon
2. Select 'Overlays' from the ribbon bar
3. Select the 'Add AVG' overlay
4. Follow the steps in the configuration wizard (Average Overlay Wizard) in the panel on the right to set create the Average overlay

Average Overlay Wizard

Below an explanation of the steps in the 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, you want to create an overlay from.

Select Layer

Attributes can be assigned to one of more layers in the 3D model: Buildings, Terrains, Areas and Neighborhoods. In this step you can select the following options for choosing which attribute values you would like to see:

• Filter occurrence in Layers: an attribute value is selected from order of occurrence in the model data layers 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: select distance

This step is optional and shows only when selected the create grid overlay option in step 1. in this step a smoothing distance value can be chosen.

After following these steps, you have created an Average overlay. Perhaps it is an idea to also customize the legend of the overlay so that it is clear what you want to show with the overlay.

How to remove the Average overlay:

1. Select in the editor 'Geo Data' from the ribbon
2. Select 'Overlays' from the ribbon bar
3. Select the desired overlay from the list of active overlays on the left panel
4. Select 'remove' from the bottom of the left panel
5. Confirm the removal in the pop up confirmation message