CityEngine and 3D ArcGIS Brady Hoak Tom Oaks

Demo Notes

• The entire presentation was a demo. These slides are screenshots of various points in the demo.

• The first demo showed steps to create a basic 3D webscene with 2D data. This workflow is one workflow of many from the upcoming 3D City Model.

• The 3D City Model combines a 3D geodatabase schema, GP models to create and maintain data, and CityEngine .cga scripts to create a 3D city using a standardized template in a repeatable workflow.

• The second demo was showing highlights of the CityEngine scene from the plenary presentation.

NASA Facility

Demo 1

First Gather Data

• Imagery • Building Footprints • LIDAR data • DTM • Hand Built Models • Custom Textures

Decide on AOI and Clip Imagery

Use a GP model to Place the Building Footprints into Z space, and a second GP model to alter the DSM to be flat around the building perimeter

Obtain Digital Surface Terrain Model Raster (DSM) from Lidar – Here is the LIDAR data first return points LAS Dataset in ArcScene

The Resulting Raster DSM

Calculate Building Heights and Levels Above Ground from nDSM

Add Imagery and DTM to CityEngine

Import Buildings from File Geodatabase to CityEngine

Assign Rule File – “Building Facades from FootPrints”

What Does this Rule File Do?

Reads in .jpg Textures

Looks at Number of Floors and Height Above Groupd and Assigns and Mathmatically Scales a Texture

Extrudes the Footprint based on Height

.. Results in Extruded Textured Buildings to Visualize Campus

Optionally Replace Key ‘Signature’ Buildings with Hand Built Static Models to Augment the Scene – LARC #1244

Leverage Existing Investment In 3D Custom Models – LARC #1244

Rotate Model to Position

Also had to scale it a bit too.

A Wind Tunnel ‘Signature’ Building in our Area of Interest replaces our procedurally built model – LARC #1236

Share as WebScene with ArcGIS Online

Adelaide Project

Demo 2

Create CityEngine Project (Live walk-thru)

Create CityEngine Project – New Ground Control Tower (Live walk-thru of Editing Tools)

Line of Sight – (Live walk-thru of 3D Tools)

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