John McKerrell wrote:
> Hi
>
> Just thought you might be interested to see an implementation of the
> Simile Timeline that I've recently done on my site http://mapme.at/
>
> The site allows you to store a location history through various
> methods, including integrations with Yahoo! Fire Eagle and Google
> Latitude. Previously we had a very simple drop-down allowing you to
> show history for any of the last 30 days for a user. With Simile
> Timeline we've been able to much improve this. The bottom band shows a
> summary of your history for the last 30 days, highlighting the days
> that you've had activity. The top band shows individual journeys and
> periods of inactivity. As you drag the timeline around more data is
> loaded. Here's a few examples, the first shows my location which I've
> restricted the accuracy of, the following two show timelines for users
> that show full accuracy:
>
> http://mapme.at/where/john
> http://mapme.at/where/thebox
> http://mapme.at/where/royaliris#/200905202037/6
>
> (the time interval to show in the top band is detected automatically
> depending on how active the user is, it probably still needs some
> tweaking)
>
> It's been an interesting widget to work with but I'm really happy with
> the result. I think there's still more that I can do with it but I'd
> be interested to hear your feedback and if you think there's things I
> could do better. One thing that I'm not sure about is timezones (and I
> think other people have had issues with that too). I'm creating JS
> date objects that appear to be correct, the source string is, for
> example, "2009/06/03 20:11:15 +0000". This creates a JS date object
> that returns, on my computer (in the UK), "Wed Jun 03 2009 21:11:15
> GMT+0100 (BST)". The timeline is showing the dates as GMT though. I
> did find one web page that suggested Simile Timeline would use the
> browser's timezone by default. I also noticed the timeZone option for
> band, I tried ((new Date()).getTimezoneOffset()/60) but that seemed to
> shift another hour in the wrong direction. Should I simply negate that
> or is there something else I should be doing?
>
> Anyway, great widget, thanks to all involved in putting it together.
> Hope you find my integration interesting.
John,
That looks interesting! It'd be nice to get to experience its value-add
without having to sign up / sign in first.
Regarding the time zone issue, there is a little test here
http://trunk.simile-widgets.org/timeline/examples/test_timezones/test_timezones.html
that might shed some lights on how Timeline parses date/time ISO8601
strings. There are some relevant discussions here
http://groups.google.com/group/simile-widgets/search?group=simile-widgets&q=test_timezones
Hope that helps!
David
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