Comments (4)
I also don't do a source.on('change') in my project.
That's triggered internally to notify the layer of the changes.
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If you have a vector source with a lot of changes, you might want to consider using the useSpatialIndex: false
option on the source.
The demo in your code pen does not replicate the actual behavior, because when the source change
event is triggered, a requestAnimationFrame
is triggered to re-render, but not every change
event will cause a re-render. These changes are usually grouped into a single re-render.
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Hi @ahocevar ,
My demo don't represent the complexity of my project, it just tries to demonstrate a problem. Still I have added useSpatialIndex: false
, but that's not really relevant for this demo.
I also don't do a source.on('change')
in my project. Still, if I remove 3000 features at once, it took me more than 2s. Using the same override as in the demo allows me to avoid this issue. I'll try to dig further in my project to find why I've this issue. But even if I fix it, I probably will keep this silent
option. Having it directly in Ol would be appreciated. Calling N times source.changed
for N features is probably not a nice thing to do. And in my dummy demo, we effectively have 5000 changes.
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Closed and done with #15643
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