October 2017
Intermediate to advanced
548 pages
13h 23m
English
Content preview from Augmented Reality for Developers
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Handling tracking events
The default ImageTarget prefab that we added to our scene includes a Default Trackable Event Handler component. It implements the ITrackableEventHandler interface, specifically the OnTrackingFound, OnTrackingLost, and OnTrackingChanged events. We used these events and interface in earlier projects in this book.
For Smart Terrain and our app, we need a different implementation of this interface. Our implementation began with the Penguin example project provided by Vuforia for Smart Terrain. Like all good programmers, don't start coding from scratch when you don't need to! The implementation is slightly different from the DefaultTrackableEventHandler class in three ways:
- We provide the option to toggle children components ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
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