Ticket #10809 (closed: fixed)
BugFix: VSI freezes for MDEvent workspace in Multislice view
| Reported by: | Anton Piccardo-Selg | Owned by: | Anton Piccardo-Selg |
|---|---|---|---|
| Priority: | critical | Milestone: | Release 3.3 |
| Component: | GUI | Keywords: | VATES |
| Cc: | Blocked By: | ||
| Blocking: | Tester: | Owen Arnold |
Description
The MDEvent workspace is causing the VSI to freeze when it is loaded into the Mulitslice view. This seems to be a bug which has been present at least since the last release.
Attachments
Change History
comment:2 Changed 6 years ago by Anton Piccardo-Selg
Refs #10809 Fix Multislice freeze of MDEvent data in Win7
Changeset: 1752c1c4e6540e14b4c3694191addd4caac2df0f
comment:3 Changed 6 years ago by Anton Piccardo-Selg
For Testing: Please find the test instructions and the required data sets in the attachment.
comment:6 Changed 6 years ago by Anton Piccardo-Selg
- Status changed from inprogress to verify
- Resolution set to fixed
Please see comment 3 for testing
comment:7 Changed 6 years ago by Owen Arnold
- Status changed from verify to verifying
- Tester set to Owen Arnold
comment:8 Changed 6 years ago by Owen Arnold
- Status changed from verifying to closed
Merge remote-tracking branch 'origin/bugfix/10809_fix_multislice_freeze_with_mdevent_data'
Full changeset: 1324972ebb1b35ea94447b73cf9106ef03791ad8
comment:10 Changed 5 years ago by Stuart Campbell
This ticket has been transferred to github issue 11651
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The issue only appears when switching from either a STANDARD or SPLATTERPLOT view into a MULTISLICE view. Directly loading the MDEvent workspace into the MULTISLICE view does not cause the issue.
The bug only appears on Windows 7 machines. It has been tested on OSX and Ubuntu, where it does not cause the same issues.
We have tracked the issue down to
QObject::connect(activeObjects, SIGNAL(representationChanged(pqRepresentation*)),
in the MdViewerWidget's setParaViewComponentsForView().
When we uncomment this option, the issue stops, but we are left without the option to change the representation (such as the opacity etc) in the properties panel.
The actual freezing stems from Qt evaluating messages from the Windows message queue. They seem to suggest that something is constantly trying to resize the window. A QScrollBar is sending an event to a QScrollArea. Although it is not clear yet, how this is related to the part of the code presented above.
Utkarsh Ayachit of ParaView has been contacted regarding this issue. He will be able to look at it on Monday the 22nd of December.