What Gestures can Control Volume Slider like BMW iDrive?

[CLi37]

BMW will start to use gesture control in its iDrive car.

Look at the video in URL below

http://www.cnet.com/news/bmw-finally-embraces-touchscreens-adds-gesture-control/ ;

The cool gesture is to circle the index finger and control the volume slider. 

For RealSense what is the gesture to control a slider?

[samontab]

You could use any gesture to control a slider. Probably the (vertical or horizontal) swipe gesture is the most appropriate in this case.

[CLi37]

Show me a video or code example.

That is not so easy. RealSense SDK does not provide UI control elements in default, no button, no slider, no scroll bar, no focus.   

To swipe gesture it is need to use two hands for swipe left or right respectively and no vertical swipe. And slider needs to move in two directions.

And to control a slider is by scroll not by swipe. 

[steve-vink]

There are lots of code examples in the SDK showing hand gestures and touchless control methods.

You won't find exactly what you are wanting for because it is up to you to convert the received gestures and data into application-specific methods.