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0005693

VTK

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public

2007-09-13 07:03

2008-02-19 13:21

Reporter

Henrik Westerberg

Assigned To

Jeff Baumes

Priority

normal

Severity

crash

Reproducibility

always

Status

closed

Resolution

fixed

Platform

OS Version

Product Version

Target Version

Fixed in Version

Summary

0005693: Removing actors from the scene creates threding problems with Java/VTK/X

Description

I am creating an interactive GUI for visualising multiple VTK files at
one time, in addition different VTK files need to be loaded in and out of
the scence.

Whenever I use the VTK methods for removing actors (vtkRenderer.RemoveAllViewProps(), or vtkRenderer.RemoveActor()) on the renderer this will randomly cause a asynchorous crash with the X threading system.

This can be achieved by using the "Clear" or "Add" button in the GUI. It may take one or two adds and clears but eventually a variation of the following message will appear:

Xlib: unexpected async reply (sequence 0x34b1)!

Interestingly when I tried to create a simplified version of the program (without the splash) I could not get this behaviour. So perhaps it is something to do with the splash image.

I was able to resolve this issue by adding two methods to vtkPanel.java which put locks and unlocks around the problematic methods eg:

public void removeProps() {
    Lock();
    ren.RemoveAllViewProps();
    UnLock();
}

I am uploading my source and an image that is loaded when run. It also necessary to have some vtk polydata files in order bring them in and out of the scene.

I am also using a slightly old version of X 6.8.2 vs 7.3

cheers,

Henrik

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Attached Files

VTKViewer.tar.gz [^] (2,326 bytes) 2007-09-13 07:03

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Notes
(0010590) Jeff Baumes (administrator) 2008-02-19 13:21	See bug 6292. Now that lock() and unlock() are public, you may use them around any code that causes a render.

Issue History
Date Modified	Username	Field	Change
2007-09-13 07:03	Henrik Westerberg	New Issue
2007-09-13 07:03	Henrik Westerberg	File Added: VTKViewer.tar.gz
2008-02-06 09:27	Jeff Baumes	Status	backlog => tabled
2008-02-06 09:27	Jeff Baumes	Assigned To	=> Jeff Baumes
2008-02-19 13:21	Jeff Baumes	Status	tabled => closed
2008-02-19 13:21	Jeff Baumes	Note Added: 0010590
2008-02-19 13:21	Jeff Baumes	Resolution	open => fixed
2011-06-16 13:11	Zack Galbreath	Category	=> (No Category)