I think we are discussing two different things. Easing is the acceleration/deceleration applied to a transition of fixed duration/position. When applied to scrollbars this means that is may slowly accelerate and then slowly decelerate to the fixed scrolled to position, giving the illusion that it has mass, without the indeterminate behavior of a simulation.
Momentum/interial on the other hand often occurs in the click, grab and 'throw' type scrolling, usually where the cursor looks like an open hand over any part of the page, this is a physics like simulation with mass and friction, and ends up however hard they user threw it, and may be scrolling in 2D. Incidentally part of the flash based fXperience library I've been working on, uses the momentum style behavior also applies to the transitions between up,over,down, selected states, animation in the state, and the build out and tear down states. I find the normal 'crisp' state, jarring visually. On Sat, 15 Mar 2008 04:41:12, pauric <[EMAIL PROTECTED]> wrote: > Just to weigh in further against the use of 'inertia' to describe > this interaction. The physics follow Newtons 2nd law, inertia being > described in the first law > > Newton's 2nd law states; > > "The rate of change of momentum of a body is proportional to the > resultant force acting on the body and is in the same direction." > > I think Jack's 'momentum scrolling' label captures this well. > > > . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . > Posted from the new ixda.org > http://www.ixda.org/discuss?post=27132 > > > > > ________________________________________________________________ > Welcome to the Interaction Design Association (IxDA)! > To post to this list ....... [EMAIL PROTECTED] > Unsubscribe ................ http://www.ixda.org/unsubscribe > List Guidelines ............ http://www.ixda.org/guidelines > List Help .................. http://www.ixda.org/help > > ________________________________________________________________ Welcome to the Interaction Design Association (IxDA)! To post to this list ....... [EMAIL PROTECTED] Unsubscribe ................ http://www.ixda.org/unsubscribe List Guidelines ............ http://www.ixda.org/guidelines List Help .................. http://www.ixda.org/help
