[jira] [Commented] (IMPALA-12230) Support scaling of timeticks and fragment timing diagram for better accessibility

["Surya Hebbar (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/IMPALA-12230?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17735206#comment-17735206 ] 

Surya Hebbar commented on IMPALA-12230:
---------------------------------------

The timeline can now be scaled horizontally to increase the visibility of fragment events, also while increasing the number of time ticks and the precision as required.

Alt+Shift key press with wheel events on timeticks footer would allow scaling of timeticks.

Only Shift key press with wheel events on timeticks footer would increase the number of timeticks.

Shift key press with wheel events on the fragment timing diagram can be used to scale the timeline.

 

!timeticks_precision_and_scale.png!

[^query_timeline.mkv]

> Support scaling of timeticks and fragment timing diagram for better accessibility
> ---------------------------------------------------------------------------------
>
>                 Key: IMPALA-12230
>                 URL: https://issues.apache.org/jira/browse/IMPALA-12230
>             Project: IMPALA
>          Issue Type: Improvement
>            Reporter: Surya Hebbar
>            Assignee: Surya Hebbar
>            Priority: Major
>         Attachments: query_timeline.mkv, timeticks_precision_and_scale.png
>
>
> The query timeline display should support the following features simultaneously, while concurring with browser resize events and scrolling.
> + To scroll through the fragment timing diagram, and to horizontally scale fragment events
> + To increase/decrease number of timetick values in the timeline display
> + To increase/decrease precision of timetick values in the timeline display



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