I've experimented with scroll buttons in the carousel widget on the
Exhibit page:
http://simile.mit.edu/exhibit/
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After 2.5 years since Timeline 1.0, maybe it's time for a redesign for
3.0? We as a community have learned enough of what features we want in
actual use of the API.
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Maps are 2 dimensional while timelines are 1 dimensional. The extra
freedom in timelines is a blessing and a curse--a curse because the free
dimension can be used for any custom purpose, which makes the support
for customization really tough.
(Note that on maps, if several markers fall into the same location or
are close enough to one another, then they overlap visually and not much
can and is done about that problem. On timelines, events overlapping in
time are separated into different tracks.)
Furthermore, people have probably seen more maps in the real world and
online than they have seen timelines. And people do use street maps for
navigation, whereas nobody really uses timelines for everyday tasks.
Most timelines I had seen before are in newspapers or books, they are
very carefully laid out but are static and support neither panning nor
zooming, whereas almost any map just begs to be zoomed and panned
because its 2 dimensionality is much closer to our 3 dimensional reality.
When I started writing Timeline 1.0, I thought of the possibilities of
customization that people might want, and they were pretty scary. As you
know, customization is a bane in software engineering. So I started with
just a few points for customization and showed the potential for more
(the dinosaur example was for that purpose).
Then the incorporation of Timeline within Exhibit opened up other
possibilities. Particularly, the synchronization between timelines and
maps shows how powerful these data-bound widgets can be if they can be
used together on intricate data sets. I built Timeline 2.0 mainly for
its use within Exhibit.
David
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