Transcript

00:07The key strength of CityEngine is the ability to model and design in 3D.

00:12This can be very helpful in urban planning, but before we get to the urban planning part...

00:16...let's have a look at generating the city first in 3D with the available GIS data.

00:22I can bring in a Digital Elevation Model as a TIFF...

00:26...and drape this model with a texture, for example, a basemap.

00:36I can also bring in vector data, such as building footprints and street centerlines...

00:40...from a file geodatabase.

00:43If we look at the building footprints for example, we see that we have eave height...

00:47...ridge height and roof form available as attributes.

00:52The CityEngine can make use of this information to generate as-built geometries...

00:56...by applying a simple rule.

00:59The beauty of these procedurally generated buildings is they can be very easily modified...

01:04...by changing the rule parameters.

01:06For example, quickly add a floor to a building or change the roof form.

01:18And if we compare these procedurally generated buildings...

01:21...with static, as-built models created by third-party providers...

01:27...you can see that the procedural buildings represent the as-built very well.

01:35It will be a matter of collecting and applying geospecific textures to finish it off.

01:45In a similar way, we can add street furniture and vegetation to our 3D scene.

01:52The GIS data appoints the attributes such as size, type, rotation...

01:58...and we apply a rule to generate 3D models and finally, streets.

02:10At load time, street centerlines were already converted...

02:13...to street shapes using the width attribute.

02:17Now we can easily align the terrain to street shapes...

02:21...and then apply the street-construction rule to generate 3D streets.

02:29This rule has lots of parameters that allow you to fine tune the 3D street.

02:35For example, you can change the number of lanes, land width, curb height...

02:43...and also traffic density.

03:00And if you finished modeling you can turn on shadowing and ambient occlusion...

03:06...to generate a beautiful screenshot or make a selection export it out...

03:11...and bring it back into ArcGIS for further analysis and sharing out.

03:16Please have a look at the...

03:19...CityEngine to ArcGIS tutorial for more information on this.

Copyright 2014 Esri
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Generate 3D urban content based on standard GIS data

The ability to easily create 3D urban scenes based on standard GIS data is one of the key strengths of CityEngine version 2010.3. This video highlights the process of creating 3D Philadelphia from 2D and 3D GIS data.The video is based on the CityEngine: Philadelphia example available on the CityEngine resource center.

Static 3D building data provided courtesy of Pictometry.

  • Recorded: Dec 21st, 2011
  • Runtime: 03:32
  • Views: 6538
  • Published: Dec 22nd, 2011
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