Hi, Ave:
Try "eventSource.clear();" to clear the actual events loaded.
tl.getBand(0).addOnScrollListener(function(band) {
if (... need to reload events ...) {
eventSource.clear();
tl.loadXML(...);
}
});
Hope helps..
On Sep 2, 4:53 pm, Ave <[email protected]> wrote:
> Hi,
>
> I am using timemap (http://code.google.com/p/timemap/), which uses
> SIMILE timeline, to display news stories on a map / timeline:
>
> http://itn.co.uk/earth.html
>
> I am using dynamic data loading to load events onto the timeline / map
> in "chunks" so that I can support a large data set without performance
> issues. I am doing this using the addScrollListener for one of the
> bands of the timeline:
>
> timeline.getBand(0).addOnScrollListener( ... );
>
> this invokes a re-load of the dataset:
>
> var loader = new TimeMap.loaders.json_string( { ... } );
> var dataset = timemap.datasets[ "itn" ];
> loader.load( dataset, layoutTimemap );
>
> the layoutTimemap callback then lays out and repaints the timeline:
>
> layoutTimemap = function()
> {
> timeline.layout();
> timeline.repaint();
>
> };
>
> unfortunately, what happens is that the data is loaded, but the events
> are all rendered squashed up at the top of the band(s) (overlapping
> each other when they coincide), rather than distributed across the
> timeline as is normal with staticly loaded data (not sure I have
> described this clearly ... best look at the URL above to see the
> effect - you need to scroll back one month to invoke a dynamic load).
> Any idea why this is?
>
> Ave.
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