You need to call .remove() on the decorator.
e.g.
Timeline._Band.prototype.removeAllDecorators = function() {
for (var i=0,l=this._decorators.length; i < l; i++) {
this._decorators[0].remove();
this._decorators.splice(0,1);
}
}
I've done exactly as you describe (add a highlight decorator to show the
current time) and I found it more convenient to add this as a "special"
decorator to the band itself, so I could remove and re-add just the decorator
for the current time without having to worry about the other decorators that
might be in the band.
--Mike
On Mar 15, 2011, at 1:47 PM, Trudy wrote:
>
> I have a timeline with six bands, and I draw a PointHighlightDecorator
> across all of the bands at the current time at startup. What I would
> like to do is have this decorator move along with the current time.
>
> I have set up a timer that fires every second, and then a new
> PointHighlightDecorator gets drawn on the timeline. The problem is
> that I cannot remove the old one. Here is my code so far (that doesn't
> work):
>
> <code>
> for ( var i=0; i < tl._bands.length; i++ )
> {
> //var numdecorators = tl._bands[i]._decorators.length;
> tl._bands[i]._decorators[0] = null; // memory leak?? Want to
> erase
> the old one.
>
> var newdecorator = new Timeline.PointHighlightDecorator({
> date:
> Timeline.DateTime.parseGregorianDateTime(date = new
> Date()),
> color: "#993300",
> opacity: 50
> });
>
> tl._bands[i]._decorators[0] = newdecorator;
> newdecorator.initialize(tl._bands[i], tl);
>
>
> }
>
> tl.layout();
> </code>
>
> I do not know how to safely remove decorators from a band. Nulling
> them out does not remove them from the timeline once they've been
> drawn.
>
> Thanks for any inputs!
>
> --Trudy
>
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