1.
Inspecting outdoor events in
Augmented Reality
Freek de Wachter
City of Nijmegen, the Netherlands

2.
FME
User
Conference
20
22
Freek de Wachter
FME specialist at municipality of Nijmegen, the
Netherlands
Working at Nijmegen in GIS and BI teams since 2019
FME developer since 2015

3.
https://www.youtube.com/watch?v=mUXPtuKlvWg
FME
User
Conference
20
22

4.
• Digital Twin development for outdoor events
• The events
• Augmented reality checks
• Data
• FME workspace
• AR field tests
• Food for thought
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22
Agenda

5.
• Simplify permit application and authorization process
• Share the data with all emergency services; police, fire brigade, health and traffic
services
• Enable crowd simulation, management and enforcement
• Simplify inspection process
FME
User
Conference
20
22
Digital Twin development for outdoor events

6.
•Mojo Concerts: Red Hot Chili Peppers
• One day ticketed concert at a closed park
•Vierdaagsefeesten
• 4DaysMarches: the Walk of the World
• 7 days of party
• entire city centre
• free access
• 63 locations
• 1100 shows
• 1,6 million visitors over the week
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20
22
Outdoor events in Nijmegen

7.
Source Data
• Mojo Concerts:
• SCAD ReEvent by AniVizzion
• Leading industry standard for professional event
design in AutoCAD
• Library of 3D objects (blocks), exported to CSV and
FBX models
• Dutch National Grid (epsg: 28992)
• Vierdaagsefeesten:
• Layhgo Builder by Layhgo
• User friendly design tool for semi-professional event
design in Unity
• Library of 3D objects, exported to json and FBX
models
• WGS84 – Pseudo Mercator (epsg: 3857)
FME
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20
22

8.
Data Prep
Add a writer of your preference;
Esri GDB, i3S, Cesium 3D tiles
or
FME Augmented Reality
Any (or none) coordinate
system in meters
FME
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Conference
20
22

9.
Entire scene
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20
22

10.
Augmented Reality: add an anchor
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20
22

11.
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20
22
In detail

12.
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20
22
Subset of the entire scene, on my table

13.
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20
22
But does it work, with just a phone?

14.
FME
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Conference
20
22
Not really, what if we take a GNSS antenna?

15.
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20
22
Much better!

16.
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20
22
Now let’s see what the model looks like on site

17.
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20
22
Is it better with LiDAR (iPhone 12 Pro)?

18.
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20
22
More of this!

19.
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20
22
Elevation is an issue

20.
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22
What did we take away from this?
Accuracy is a big issue. Need decent
equipment
Be near the anchor when loading the model
Terrain can mess up the alignment
A phone is not really suitable
- Models shifts easily
- Sun glare is an issue
- Not hands free
- Screen too small
Not really interactive, besides walking around
it
Prior to build up we can see what the scene
will be like and enforce changes
Absense of objects or new objects can easily
be made visible
Holo-One makes the experience shareble

21.
In the future Augmented Reality will help us organize
safer events and improve the inspection process

22.
Inspecting outdoor events in
Augmented Reality
Freek de Wachter
City of Nijmegen, the Netherlands
Thank you!
f.de.wachter@nijmegen.nl