HI JACK, HI SAHIL,
after longer interrupt time my example runs - thanks your help. My problem was, that the "this.rotationOrigin" is implemented only in the latest version of the Greensock-Library". I need longer to realize this.
In my Application it runs the feature "Positioned by Mouse-Click" on a MAC with Safari or Chrome, always with the newest updates on all levels.
But my Application on the iPad - with "Touch Interface" it doesn't run the feature "Positioned by Finger-Tap".
Here my example on the end of this posting (sorry it is complex). Here it runs with the "Touch Interface".
Can you give me an idea, what I can do to solve this problem?
I found the problem. When I insert the plugin's with the "web-link from the codepen.io" it run's OK with a local browser. But after a short time I get the "Wups, you are using a members-only plugin".
When I insert the plugin's with the correct "legal members-only" downloaded files, the position-by-finger-tap doesn't run on the iPad, on the Mac (with mouse-click) all runs OK.
From my point-of-view, it's the responsibility from Greensock to solve this problem.
The utility "Draggable.min.js" is the problem. With the utility "Draggable.js" all runs OK.
My impression is, when you are a "Newbie" it is more difficult to get a "good" and "quick" answer.
I personally need "days" to find the "right" answer. Sorry, for this feedback to the support.
But your products are fine.
Additional "Newbie" question for a quick help:
My enclosed sample is a lightbulb dimmer knob (0% to 100%).
For example: The knob is positioned by 20%. When I tap on 80% the knob jumps "quick" to 80%. I want a smooth transition to the new position (with reduced more slowly at start and end). Can you give me a short recommendation.