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Vaadin Forum1. Vaadin Flow - Java

Strange effects when scrolling with timeline add-on, the return

Kim Marivoet
10 years ago Apr 17, 2012 5:54pm

Seen on timeline 1.2.4: Scrolling with the timeline produces strange results, clipping part of the graph or making it disappear altogether. In the three screenshots, I only scrolled to the right a few pixels at a time. I entered a similar ticket a few month ago (here) and the bug was fixed, but in the latest version it seems to have returned.

Worth creating a ticket for?

Regards,
Kim Marivoet

Last updated on Apr, 17th 2012
John Ahlroos
10 years ago Apr 18, 2012 5:11am

I haven't seen this issue in a while but looks like this could be a regression.

Some things to check is that the graph data source is sorted and does it have duplicate points (the same timestamp for two points)?

Also, are you getting any warning when running this with the debug window (&debug) open?

If you have a small dataset which produces this issue then please include it with the ticket. It would help fixing this issue tremendously.

Last updated on Apr, 18th 2012
Kim Marivoet
10 years ago Apr 18, 2012 7:04am

The dataset should be sorted, with no duplicate timestamps, but I'll check. It is an 'irregular' dataset: the timeinterval between the datapoints varies (sometimes it's quite large).

I'm currently finishing something else, but I'll try to get you a dataset early next week.

the previous results were on Firefox 11.0. On Chrome I get other strange things:

Last updated on Apr, 18th 2012
John Ahlroos
10 years ago Apr 18, 2012 8:23am

Okay, thanks.

The other issue you're getting is a Chrome 18 specific rendering issue. Its already been fixed along with #8487 and should not occur anymore in the upcoming Timeline 1.3 release.

Last updated on Apr, 18th 2012
Kim Marivoet
10 years ago Apr 23, 2012 11:24am

I was able to reproduce the problem with the attached datasets. The format is very simple: first the timestamp, then the value, one line per entry.

To reproduce: zoom in up to like a 2 weeks region (for example, sept/okt 2010), and scroll a bit by clicking on the arrows.

Regards,
Kim Marivoet

Last updated on Apr, 23rd 2012
John Ahlroos
10 years ago Apr 23, 2012 1:10pm

Thanks for the datasets. I am now able to reproduce the issue.

I created ticket #8727 for the issue. It should get fixed for the next minor release of the TImeline (1.3).

Thanks for reporting this issue!

Last updated on Apr, 23rd 2012
John Ahlroos
10 years ago May 08, 2012 10:47am

The Vaadin Timeline 1.3 has now been released which should fix the drifting issue.

Last updated on May, 8th 2012