Difference (Overlay)

The Difference overlay of the Heatstress overlay and additional information in the hover panel.

The Difference overlay displays the difference between the original and the maquette or planned state of a specific (dynamic) grid overlay to which the Difference overlay is linked as child overlay. A hover panel provides additional information on the occurring difference in a hovered over cell in the 3D Visualization, in the same units or terms as the parent grid overlay uses. The Difference overlay is primary created to visualize the impact of a specific action or measure on its parent overlay, and on the project in general.

A few examples of where the Difference overlay can be useful are:

the impact that a change in traffic density has on traffic noise and traffic air pollution
the effect of a water measure on the way houses or crops are impacted by excessive rainfall or flooding
insight in the impact that different simulated scenarios have on the same start situation

Adding and removing

Editor → Current Situation (Ribbon tab) → Overlays (Ribbon bar)

How to add the Difference overlay:

Select in the editor 'Current Situation' from the ribbon
Select 'Overlays' from the ribbon bar
Select the specific overlay from the drop down menu of where you want to see the difference of
In the panel on the right side of the Overlay check the Show Difference Option Box
In the Overlay ribbon, click on see Difference Map

How to remove the Difference overlay: