The Envision Glasses are mainly controlled by the gestures made on the touchpad. The touchpad is located towards the front of the body, on the side. It covers the area that goes from the fold of the body until the smaller part that sits on top of your right ear. At the introductory tutorial of the Envision Glasses you will be able to discover where the touchpad is located. While you are in the menu, try to use the touchpad and see where it reacts to you tapping it. This will allow you to understand where the touchpad ends. You could also use the Playground to practice the gestures.
There are two kind of gestures that can be performed on the glasses: swipes and taps.
Swipes
Swipes are mainly used to navigate through different screens and levels in the glasses and taps are used to interact with particular screens and features. There are three kinds of swipes:
Swipe forward
A swipe forward is done by putting one finger at the back of the touchpad, near your ear, and moving it to the front while holding your finger on the touchpad. This gesture is used to navigate to the next item in the main, or feature, menu. It is also used in the settings screens to increase a value, such as the volume or speaking rate.
Swipe back
A swipe back is done by doing the opposite gesture of a swipe forward. Put your finger at the front of the touchpad and move your finger to the back, towards your ear. This gesture is used to navigate to the previous screen in the main, or feature menu. It is also used in the settings screens to decrease a value.
Swipe down
A swipe down is done by starting at the top edge of the touchpad and swiping gently downward towards the ground. This gesture is used to exit a screen or go to the previous screen or menu. It can be compared to a back button on the smartphone.
Two-finger swipe down
A two-finger swipe down is done by starting at the top edge of the touchpad, and swiping gently downward towards the ground, with two fingers. This gesture allows you to go back to the start screen from anywhere inside the Envision Glasses operating system. When doing a two-finger swipe down on the start screen, your device will be set to sleep mode.
Taps
Now, let’s learn about tap gestures! These are mainly used to interact with particular screens and features and are of four types:
Single-tap
A single-tap is done by tapping with one finger on the touchpad. Put your finger on the touchpad and take it off. This gesture is used as a play/pause feature for the screenreader. Doing a single tap on any menu item will also speak out that screen again.
Double-tap
A double-tap is done by doing two quick taps on the touchpad with one finger. This gesture is used when you want to activate or enter into a specific screen. By double-tapping on a feature screen, you will enter/activate the feature screen. This is similar to double-tapping with TalkBack or VoiceOver on your phone to activate something.
Tap-and-hold
The tap-and-hold gesture is done by placing one finger on the touchpad and leaving it on the touchpad for a second. When you tap and hold on any screen, it provides you with additional information and description of what that menu, or feature, is. So if you are ever lost or unsure about how to use a feature, you can just tap and hold when you are on that feature. This gesture can be compared to a long-press or a force touch on the smartphone.
Two-finger single tap
A two-finger single tap gesture is done by tapping once with two fingers at the same time on the touchpad. This gesture is used to access more options for any feature that you are currently on. It can be compared to a right-click on a desktop or long-press on most smartphones. When you are on a feature, you will be able to access its options instead of navigating to the feature preferences menu.
