[squeak-dev] Fun with Animations

Marcel Taeumel marcel.taeumel at hpi.de
Sun Nov 19 07:47:03 UTC 2017


Hi, Dave. :)

You can do a lot of stuff with plain morphs and stepping, too. In the Animations framework, the focus was on a more convenient programming interface that decouples system load and animation time. So, even if your Squeak image has plenty of things to do, the animation X will finish after, for example, 250 ms. Yet, you might only see the first and the last update then. :D In some way, the Animations framework is kind of Morphic stepping but it offers each participant a synchronized progression of time, which can then be used to update or interpolate the animation progress. Such things are difficult with Morphic stepping because the "call me again in 20 ms" via #stepTime treats time different for each morph.

Best,
Marcel
Am 18.11.2017 22:34:43 schrieb David T. Lewis <lewis at mail.msen.com>:
On Sat, Nov 18, 2017 at 02:22:41PM +0100, Marcel Taeumel wrote:
> Hi, there.
>
> I just updated my Animations framework to support composite animations:
> https://github.com/hpi-swa/animations [https://github.com/hpi-swa/animations]
>
> Here are some examples using 1000 morphs:
> https://giphy.com/gifs/l2QDRTpwNsQ2NDSY8 [https://giphy.com/gifs/l2QDRTpwNsQ2NDSY8]
> https://giphy.com/gifs/xUOxf2c1ULKebDK6Ag [https://giphy.com/gifs/xUOxf2c1ULKebDK6Ag]
>
> ...gets kind of slow with 10000 morphs:
> https://giphy.com/gifs/3ohs7ONYSvpugDDRF6 [https://giphy.com/gifs/3ohs7ONYSvpugDDRF6]
>
> Use Squeak 5.1 or 6.0alpha (trunk). Works in 4.5, 4.6, and 5.0, too:
> https://travis-ci.org/hpi-swa/animations [https://travis-ci.org/hpi-swa/animations]
>
> Best,
> Marcel
>

That looks quite good. I remember doing some work with Graphviz and Connectors
maybe about 10-15 years ago to visualize a manufacturing product flow, and the
morphic displays would start bogging down as the model got larger. From your gifs,
I expect that much larger graphic visualizations are now feasible.

Dave


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