Skip to Main Content
Designing Gestural Interfaces
book

Designing Gestural Interfaces

by Dan Saffer
November 2008
Intermediate to advanced content levelIntermediate to advanced
272 pages
9h 16m
English
O'Reilly Media, Inc.
Content preview from Designing Gestural Interfaces

ROTATE TO CHANGE STATE

WHAT

Turning or tilting an object changes either the functionality of the object or the feedback/display of items on that object.

USE WHEN

Use Rotate to Change State on devices that can be used for multiple purposes or to display content that might be better viewed in portrait or landscape view.

WHY

Particularly useful on devices with limited, rectangular screen real estate, Rotate to Change State allows content to be viewed in ways that best display the content, given the screen size.

HOW

Rotate to Change State requires a gyroscope or a multiaxis accelerometer to determine the position of the device. The threshold for the change in state (e.g., 90 degrees, 180 degrees, etc.) needs to be determined.

If the device lays flat (e.g., on a table), accelerometers may not pick up the rotation.

EXAMPLES

Nokia's newer N series phones, such as the N95 (pictured), are equipped with accelerometers and can change views from portrait to landscape based on how they are held. Courtesy Nokia.

Figure 4-16. Nokia's newer N series phones, such as the N95 (pictured), are equipped with accelerometers and can change views from portrait to landscape based on how they are held. Courtesy Nokia.

The "Bar of Soap" changes its functionality (from camera to PDA to phone to gaming device) based on how it is held, switching modes when rotated. Courtesy Brandon Thomas Taylor and MIT Media Lab.

Figure 4-17. The "Bar of Soap" changes its functionality (from camera to PDA to phone to gaming device) based on how it is held, switching modes when rotated. Courtesy Brandon Thomas Taylor and MIT Media Lab.

Figure 4-18. Canon's PowerShot SD1000 changes its display (to portrait or landscape) ...

Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.
Start your free trial

You might also like

Designing Web Interfaces

Designing Web Interfaces

Bill Scott, Theresa Neil
Designing Mobile Interfaces

Designing Mobile Interfaces

Steven Hoober, Eric Berkman
Designing Social Interfaces, 2nd Edition

Designing Social Interfaces, 2nd Edition

Christian Crumlish, Erin Malone
Interaction design for tangible interfaces

Interaction design for tangible interfaces

Stephen P. Anderson, Jonathan Follett

Publisher Resources

ISBN: 9780596156756Errata