I had incredible difficulty with the rewind/undo interface. Almost as often as I bring up the rewind UI, it'll do some other action instead, like drawing little dots, or zooming in/out, or bringing up/dismissing the tools palette.
When the dialog is finally brought up, it doesn't respect my finger motions. I'll drag my one finger a full 360 around my other finger but the pie chart moves less than 5 degrees in total, jerkily. Or, it flaps forward and backward rapidly as I smoothly move my finger in one direction. Maybe there's a heuristic that's trying to pick a "pivot" finger and a "rotating" finger, and it's picking wrong each time. I dunno.
Willing to give them the benefit of the doubt because the rest of the app is so well done, but, this brokenness of such a key feature makes a bad initial impression.
It sounds as if you're rotating one finger around the other? The idea is to use two fingers together (like one big finger) to do a pan in a circular motion.
In all my messing around it did not occur to me to try that. Thanks! Solution blinders in action! I suppose a little animation would have gone a long way towards clearing that up initially.
Even doing it correctly, I still feel it's a little too slow, and still relatively easy to flub it into closing the book. I applaud the idea, though.
When the dialog is finally brought up, it doesn't respect my finger motions. I'll drag my one finger a full 360 around my other finger but the pie chart moves less than 5 degrees in total, jerkily. Or, it flaps forward and backward rapidly as I smoothly move my finger in one direction. Maybe there's a heuristic that's trying to pick a "pivot" finger and a "rotating" finger, and it's picking wrong each time. I dunno.
Willing to give them the benefit of the doubt because the rest of the app is so well done, but, this brokenness of such a key feature makes a bad initial impression.