Leap.Controller' does not contain a definition for `EnableGesture'

KevinGulling 2016-02-19 19:43:08 UTC #1

So this question I've seen asked repeatedly, but they have been poorly answered in most cases, and/or contain links to deprecated material, and I'm not sure if there were changes in the Orion that change the way to call gestures. Can someone please tell me how I am supposed to enable and use gestures?
If I enter this line of code:

controller.EnableGesture(Gesture.GestureType.TYPE_SWIPE);

I get this error:
Leap.Controller' does not contain a definition for `EnableGesture'

Joe_Ward 2016-02-19 21:03:58 UTC #2

Gestures are not supported in the Orion Unity assets and we are deprecating the Gesture feature in general. To continue using gestures, you will have to use the older Unity assets -- for the timing being the service still emits gestures. Tool tracking and the Motions API are similarly deprecated.

KevinGulling 2016-02-19 21:22:47 UTC #3

Joe, thanks for the reply,

So why exactly would we not want gestures? Is there some new functions to replace gestures, or are we just moving backwards?

Joe_Ward 2016-02-19 21:38:52 UTC #4

The built-in Gesture classes never worked as well as they should, especially KeyTap and ScreenTap, and especially when the device is head-mounted. The built-in gestures also weren't very flexible. As Leap Motion has moved to a strong VR focus, it doesn't make sense to continue to maintain this feature.

For detecting gestures yourself, a few approaches are possible. There is, for example, LeapTrainer, which is a JavaScript utility. It should be possible to adapt this to other programming environments.

Or, something like the $P recognizer should be adaptable to pose-type gestures. An example is available here: https://developer.leapmotion.com/libraries/354.

Finally, if the simpler utilities aren't up to the task, there is the Gesture Recognition Toolkit.

KevinGulling 2016-02-19 22:30:50 UTC #5

Great thanks for the references Joe_Ward!

lsanagustin 2016-03-02 13:37:09 UTC #6

So, no more builtin gesture recognition in SDK? we need to make our own solutions for deal with them?

That's a huge step back for fast prototyping demos...

LastBlow 2017-03-31 22:40:15 UTC #7

@lsanagustin I would tend to agree with you...