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 occuring difference in a hovered over cell in the 3D World, in the same units or terms as the parent grid overlay uses. The Difference overlay is primary created to visualise the impact of a specific action or measure on its parent overlay, and on the 3D World in general.

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

• the impact that a change in traffic density has on traffic noise and traffic air polution
• the effect of a water measure on the way houses or crops are impacted by excesive 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:

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

How to remove the Difference overlay:

1. Select in the editor 'Current Situation' 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

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Overlays

Categorization

Grid • Parent • Result Child • Result Parent • Result type

Default

City

Administrative

Ownership • Ownership Grid • Zipcodes • Zoning • Neighborhoods • Municipalities • Vacancy

Environmental

Heat Stress • Traffic Density • Traffic Noise • Traffic NO2 • Livability • Aerius

Water

Rainfall • Flooding • Groundwater • Subsidence • Watershed • Waterwijzer

Raster Calculation

Average • Combo • Distance • Sight Distance • Travel Distance

Geo Data

Area • Attribute • GeoTIFF • WCS • WMS • Image

Topography

Digital Surface Model • Digital Terrain Model • Underground • Function • Source

Network

Network Distance • Network Overview • Network Ownership