Comments on: Animations 202 – scrolling http://www.pushing-pixels.org/?p=1593 Leaving no pixel behind Thu, 09 Sep 2010 18:02:18 -0700 hourly 1 http://wordpress.org/?v=3.0.1 By: Kirill Grouchnikov http://www.pushing-pixels.org/?p=1593&cpage=1#comment-11175 Kirill Grouchnikov Tue, 12 Jan 2010 18:11:20 +0000 http://www.pushing-pixels.org/?p=1593#comment-11175 Marcin - you're right. The tangent slope at that point should be the steepest. This point should be after the "finger leaves the surface" point, since the finger has left when the movement was still accelerating. Thanks Kirill Marcin – you’re right. The tangent slope at that point should be the steepest. This point should be after the “finger leaves the surface” point, since the finger has left when the movement was still accelerating.

Thanks
Kirill

]]> By: Marcin Sciesinski http://www.pushing-pixels.org/?p=1593&cpage=1#comment-11174 Marcin Sciesinski Tue, 12 Jan 2010 18:05:34 +0000 http://www.pushing-pixels.org/?p=1593#comment-11174 Let me start on saying - great job on explaining it all. But being a programmer with mathematical and physics background - one thing immediately jumped at me: The "Distance traveled - flick" image is mathematically incorrect. It has a "highest speed" point marked wrong. It should be a the point where tangent of the angle the line creates at this point has the biggest value (I hope I translated what I have in mind right), so more like a little below where the "finger leaves the surface" point. Let me start on saying – great job on explaining it all. But being a programmer with mathematical and physics background – one thing immediately jumped at me:
The “Distance traveled – flick” image is mathematically incorrect. It has a “highest speed” point marked wrong. It should be a the point where tangent of the angle the line creates at this point has the biggest value (I hope I translated what I have in mind right), so more like a little below where the “finger leaves the surface” point.

]]> By: Mabs http://www.pushing-pixels.org/?p=1593&cpage=1#comment-11171 Mabs Mon, 11 Jan 2010 07:11:51 +0000 http://www.pushing-pixels.org/?p=1593#comment-11171 Mohamed you can find some of these functions in Trident library written by Kirill, take a look at org.pushingpixels.trident.ease package and also at this http://kenai.com/projects/trident/pages/TimelineAdditionalConfiguration Mohamed you can find some of these functions in Trident library written by Kirill, take a look at org.pushingpixels.trident.ease package and also at this http://kenai.com/projects/trident/pages/TimelineAdditionalConfiguration

]]> By: Mohamed Mansour http://www.pushing-pixels.org/?p=1593&cpage=1#comment-11164 Mohamed Mansour Sat, 09 Jan 2010 16:01:12 +0000 http://www.pushing-pixels.org/?p=1593#comment-11164 Alright now I am puzzelled, I didn't know scrolling has that much complexity. I still want to find out how to derive the functions that we can use while programming. I know we can draw graphs time/velocity/distance but we still have to define that in functions, would have been nice if you specified the function for each graph like in a subscript or so. Awesome post. Alright now I am puzzelled, I didn’t know scrolling has that much complexity. I still want to find out how to derive the functions that we can use while programming. I know we can draw graphs time/velocity/distance but we still have to define that in functions, would have been nice if you specified the function for each graph like in a subscript or so. Awesome post.

]]> By: Franz http://www.pushing-pixels.org/?p=1593&cpage=1#comment-11163 Franz Sat, 09 Jan 2010 11:43:33 +0000 http://www.pushing-pixels.org/?p=1593#comment-11163 Also called: "the complexity of scrolling". Nice article to show that nice "scrolling" is not that easy. Also called: “the complexity of scrolling”.
Nice article to show that nice “scrolling” is not that easy.

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