3D Flood Mapping of London using CityEngine

A topical visualisation today after I wondered whether I could do this whole flood map thing in 3D.   What I’d really like to do next is have the rule file change the building colour as the water level rises… It can be done just not very nicely.  It also demonstrates the real potential of CityEngine to become a responsive Geodesign tool.

This would obviously be a ridiculously large flood, it’s proof of concept really

Yes you can do this all in other packages but in CityEngine I can change the flood height variable and the model changes pretty much instantly (video to come).   I’ve obviously done some pre processing work in ArcGIS to allow for it to work in CityEngine.


Data courtesy of CyberCity3D, who I am providing CityEngine consulting for.



3D London & Terrains

I’ve been working on the latest CyberCity3D London coverage today, using the terrain map we have and experimenting with the terrain colours.   Sometimes a satellite imagery overlay on terrain in CityEngine just doesn’t seem to work…

Here are some screen shots from ArcGIS CityEngine and the Webscene viewer.

Webscene view of London Bridge –> Click on image to find out more about London Bridge!

Data courtesy of CyberCity3D, who I am providing CityEngine consulting for.


Bringing it all together in CityEngine – Modelling Current & Historic London in 3D

Combining data in CityEngine is really easy, take this example I’m working on at the moment:

Using CyberCity3D real world 3D urban data saves time and improves the look of the model.

I’ve taken an old georeferenced map of London and I placed real world current 3D urban data from the nice people at CyberCity3D.   I’ve digitized one of the old barracks shown on the old map actually within CityEngine and run one of my generic office block rule files over it.   I’ve also run a floor level split rule over some of the CyberCity3D data (in the bright green) this has much more potential than just colouring or texturing buildings and I’ll be looking at this in detail soon…

For landscaping I’ve used a palm grove rule file, obviously I need to model new trees for this model!

Webscene view, old map has been compressed (hence poor quality), this can be improved…


This is obviously experimenting with different types of data and different sources of data,  I’m toying with the idea of doing a before and after 3D model of this area of London.  Then I might use some futuristic models to have some fun with it!

For those interested I used an extract of Greenwoods Map of London 1827 and data given to me by these guys at CyberCity3D.

Thanks goes to my wife @MMhartley who has an amazing online historic links resource…