On Aug 13, 2007, at 4:23 AM, Naimesh (Hotmail) wrote:
> Hello !
> I am new to timeline. Can anybody help me on :
> 1) How to Pan left and Right feature to give on button click even
> on the buttons kept on the page where timeline is displayed.
> 2) How to provide zoom In/Out feature to give on button click even
> on the buttons kept on the page where timeline is displayed.
> Please help soon on above.
> Thanks & Regards.
> Naimesh Trivedi
Panning is done by calling _autoScroll on a Band. Look at
Timeline._Band.prototype._onKeyUp. It binds the page down and page up
keys to call _autoScroll. It takes a number of pixels +/- and scrolls
the band in that direction.
For example, you may have a link or button to pan your timeline:
<input type="button" onclick="tl.getBand(0)._autoScroll(tl.getBand
(0)._timeline.getPixelLength())" value="Backwards">
This pans the timeline a fixed number of pixels.
You may also call scrollToCenter on a Band. This takes a Date as its
parameter and will smoothly scroll the timeline to that date. This
allows you to scroll in exact time increments (such as +/- one month)
rather than by pixels.
onclick='tl.getBand(0).scrollToCenter(new Date("9/13/2007"))' would
scroll the timeline to center on that date.
Timeline doesn't currently support zooming In/Out.
--Mike Nosal
_______________________________________________
General mailing list
[email protected]
http://simile.mit.edu/mailman/listinfo/general
