[vtk-developers] CreateRepeatingTimer and X11/Tk

David Cole david.cole at kitware.com
Tue Aug 19 15:49:10 EDT 2008 

OK.....
See the notes in the original issue (
http://public.kitware.com/Bug/view.php?id=3164 ) if you want all the gory
details, but I have committed a further refinement of the fix to CVS HEAD.
Try it and let me know if you have any problems.

I will be merging it to VTK-5-2 tomorrow assuming the dashboards do not
complain about too many things overnight. :-)

Thanks for your patience,
David Cole


On Tue, Aug 19, 2008 at 11:59 AM, David Cole <david.cole at kitware.com> wrote:

> If you add "iren Start", you also have to add an "exit" following it....
> (It hangs because it leaves the Start method and there is nothing telling
> Tcl/Tk to exit and clean up all the referenced objects...)
> If you wait just a little bit longer,  I think I am closing in on the real
> fix.
>
> Thanks,
> David
>
>
> On Tue, Aug 19, 2008 at 11:04 AM, Bill Lorensen <bill.lorensen at gmail.com>wrote:
>
>> David,
>>
>> I just built VTK head. Now when I run a script like:
>> VTK/Graphics/Testing/Tcl/polyConn.tcl
>>
>> I get no interaction unless I add an "iren Start". If I hit an 'e' in
>> the graphics windows, the window hangs. Other keys like 'w' or 's'
>> work as expected.
>>
>> Bill
>>
>> On Mon, Aug 18, 2008 at 1:45 PM, Bill Lorensen <bill.lorensen at gmail.com>
>> wrote:
>> > I,m at the VTK-5-2 branch.
>> >
>> > On Mon, Aug 18, 2008 at 12:23 PM, David Cole <david.cole at kitware.com>
>> wrote:
>> >> Nope. Same problem. Do you still get that with CVS HEAD of VTK, or are
>> you
>> >> snapped to the VTK-5-2 branch...?
>> >>
>> >> On Mon, Aug 18, 2008 at 12:21 PM, Bill Lorensen <
>> bill.lorensen at gmail.com>
>> >> wrote:
>> >>>
>> >>> Maybe my problem is different. When I try to interact with a tcl test
>> >>> like polyConn.tcl, I get:
>> >>>
>> >>> ERROR: In
>> /home/lorensen/Projects/VTK/Rendering/vtkInteractorStyle.cxx,
>> >>> line 392
>> >>> vtkInteractorStyleJoystickCamera (0xa0129e8): Timer start failed
>> >>>
>> >>> This is a fedora core 9 system, gcc 4.3.
>> >>>
>> >>> Bill
>> >>>
>> >>>
>> >>> On Mon, Aug 18, 2008 at 10:39 AM, David Cole <david.cole at kitware.com>
>> >>> wrote:
>> >>> > There is interaction available if you call "iren Start" at the
>> bottom of
>> >>> > your tcl script to push an X event loop sponsored by the
>> >>> > vtkRenderWindowInteractor.
>> >>> > The remaining problem is that on other platforms (Windows with
>> >>> > ActiveState
>> >>> > Tcl, for example) the vtk.exe Tcl/Tk event loop is running and
>> enabling
>> >>> > interaction without any "iren Start" at the bottom of the tcl
>> script. So
>> >>> > ideally, it would be nice to get that behavior for free in X
>> >>> > implementations, too... seems to be what VTK devs expect.
>> >>> > So, I may have to put back some of the tcl-specific X code that used
>> to
>> >>> > be
>> >>> > there before my commit last Thursday. I spent Friday in a fruitless
>> >>> > attempt
>> >>> > at getting the interaction to work with just X stuff from our tcl/tk
>> >>> > app.
>> >>> > Maybe somebody out there can give me a hint about whether this is
>> really
>> >>> > possible or not...? Maybe I'm just wasting my time trying to
>> minimize
>> >>> > the
>> >>> > code required.... going back to using Tk_DoOneEvent and tcl timers
>> may
>> >>> > be
>> >>> > the right way to go after all.
>> >>> > At least there is now one common implementation for handling the
>> actual
>> >>> > X
>> >>> > events, though. At least that part of my cleanup effort will
>> survive. I
>> >>> > will
>> >>> > reply again with final results when I have them.
>> >>> > Thanks for your patience, and feel free to send along any helpful
>> hints.
>> >>> >
>> >>> >
>> >>> > David Cole
>> >>> >
>> >>> > On Mon, Aug 18, 2008 at 1:56 AM, Andrew Maclean
>> >>> > <andrew.amaclean at gmail.com>
>> >>> > wrote:
>> >>> >>
>> >>> >> Hi Bill, I think David is looking further into it.
>> >>> >> I think it still needs some more work. I tried it in the weekend
>> and
>> >>> >> there was no interaction at all (mouse and keyboard).
>> >>> >> Regards
>> >>> >>   Andrew
>> >>> >>
>> >>> >>
>> >>> >> On Mon, Aug 18, 2008 at 3:12 AM, Bill Lorensen
>> >>> >> <bill.lorensen at gmail.com>
>> >>> >> wrote:
>> >>> >> > David,
>> >>> >> >
>> >>> >> > Is this ready for the VTK-5-2 branch?
>> >>> >> >
>> >>> >> > Bill
>> >>> >> >
>> >>> >> > 2008/8/14 David Cole <david.cole at kitware.com>:
>> >>> >> >> Fixed in CVS HEAD by making vtkXRenderWindowTclInteractor a
>> trivial
>> >>> >> >> subclass
>> >>> >> >> of vtkXRenderWindowInteractor:
>> >>> >> >>
>> /cvsroot/VTK/VTK/Graphics/Testing/Tcl/TestFillHolesFilter.tcl,v
>> >>> >> >> <--
>> >>> >> >> Graphics/Testing/Tcl/TestFillHolesFilter.tcl
>> >>> >> >>     new revision: 1.3; previous revision: 1.2
>> >>> >> >>     /cvsroot/VTK/VTK/Rendering/vtkXRenderWindowInteractor.cxx,v
>> <--
>> >>> >> >> Rendering/vtkXRenderWindowInteractor.cxx
>> >>> >> >>     new revision: 1.136; previous revision: 1.135
>> >>> >> >>     /cvsroot/VTK/VTK/Rendering/vtkXRenderWindowInteractor.h,v
>> <--
>> >>> >> >> Rendering/vtkXRenderWindowInteractor.h
>> >>> >> >>     new revision: 1.75; previous revision: 1.74
>> >>> >> >>
>> /cvsroot/VTK/VTK/Rendering/vtkXRenderWindowTclInteractor.cxx,v
>> >>> >> >> <--
>> >>> >> >> Rendering/vtkXRenderWindowTclInteractor.cxx
>> >>> >> >>     new revision: 1.54; previous revision: 1.53
>> >>> >> >>     /cvsroot/VTK/VTK/Rendering/vtkXRenderWindowTclInteractor.h,v
>> <--
>> >>> >> >> Rendering/vtkXRenderWindowTclInteractor.h
>> >>> >> >>     new revision: 1.26; previous revision: 1.25
>> >>> >> >> I will merge this to the VTK-5-2 branch after a clean night on
>> the
>> >>> >> >> dashboards and then mark this issue as resolved...
>> >>> >> >>
>> >>> >> >> Thanks,
>> >>> >> >> David Cole
>> >>> >> >>
>> >>> >> >> On Tue, Aug 12, 2008 at 4:19 PM, David Cole <
>> david.cole at kitware.com>
>> >>> >> >> wrote:
>> >>> >> >>>
>> >>> >> >>> I will try to get this one fixed tomorrow.
>> >>> >> >>>
>> >>> >> >>> Would anybody object to re-factoring the
>> >>> >> >>> vtkXRenderWindowTclInteractor
>> >>> >> >>> class (re-parent it from vtkXRenderWindowInteractor) such that
>> it
>> >>> >> >>> inherits
>> >>> >> >>> its common functionality and then has just overrides that are
>> >>> >> >>> specific
>> >>> >> >>> to
>> >>> >> >>> Tcl/Tk...?
>> >>> >> >>> I don't think it should break backwards compatibility for most
>> >>> >> >>> people,
>> >>> >> >>> although I could certainly imagine a class derived from it that
>> may
>> >>> >> >>> squawk
>> >>> >> >>> for one reason or another by having its parent chain changed...
>> >>> >> >>> I think the intent of both classes was to have the same code
>> except
>> >>> >> >>> for
>> >>> >> >>> the differences due to making tcl calls from the TclInteractor
>> >>> >> >>> method
>> >>> >> >>> implementations. However, over time, they have diverged and had
>> >>> >> >>> different
>> >>> >> >>> bug fixes applied to one that should have been applied to both.
>> >>> >> >>>
>> >>> >> >>> Is the fix for this bug simply to re-inherit
>> >>> >> >>> vtkXRenderWindowTclInteractor
>> >>> >> >>> or would that upset any of you....??
>> >>> >> >>>
>> >>> >> >>> Thanks for any feedback,
>> >>> >> >>> David Cole
>> >>> >> >>> Kitware, Inc.
>> >>> >> >>>
>> >>> >> >>> On Sat, Aug 9, 2008 at 12:59 PM, Peter Wainwright
>> >>> >> >>> <prw at ceiriog.eclipse.co.uk> wrote:
>> >>> >> >>>>
>> >>> >> >>>> On all recent CVS versions of VTK, I have been unable to run
>> this
>> >>> >> >>>> example
>> >>> >> >>>>
>> >>> >> >>>>  http://www.ceiriog.eclipse.co.uk/vtktut6.tcl
>> >>> >> >>>>
>> >>> >> >>>> Its just a simple use of vtkRenderWindowInteractor.  But when
>> I
>> >>> >> >>>> click
>> >>> >> >>>> in
>> >>> >> >>>> the window I am unable to rotate the model and I get the error
>> >>> >> >>>> message:
>> >>> >> >>>>
>> >>> >> >>>> ERROR: In
>> >>> >> >>>> /home/prw/src/VTK-20080806/Rendering/vtkInteractorStyle.cxx,
>> >>> >> >>>> line 392
>> >>> >> >>>> vtkInteractorStyleJoystickCamera (0x9543c0): Timer start
>> failed
>> >>> >> >>>>
>> >>> >> >>>> This seems to relate to the bug
>> >>> >> >>>> http://www.vtk.org/Bug/view.php?id=3164,
>> >>> >> >>>> which apparently has not been touched for almost 2 years.  It
>> >>> >> >>>> seems
>> >>> >> >>>> to
>> >>> >> >>>> affect the X11 implementation only.  Is anyone working on
>> this?
>> >>> >> >>>>
>> >>> >> >>>> Peter Wainwright
>> >>> >> >>>>
>> >>> >> >>>> _______________________________________________
>> >>> >> >>>> vtk-developers mailing list
>> >>> >> >>>> vtk-developers at vtk.org
>> >>> >> >>>> http://www.vtk.org/mailman/listinfo/vtk-developers
>> >>> >> >>>
>> >>> >> >>
>> >>> >> >>
>> >>> >> >> _______________________________________________
>> >>> >> >> vtk-developers mailing list
>> >>> >> >> vtk-developers at vtk.org
>> >>> >> >> http://www.vtk.org/mailman/listinfo/vtk-developers
>> >>> >> >>
>> >>> >> >>
>> >>> >> > _______________________________________________
>> >>> >> > vtk-developers mailing list
>> >>> >> > vtk-developers at vtk.org
>> >>> >> > http://www.vtk.org/mailman/listinfo/vtk-developers
>> >>> >> >
>> >>> >>
>> >>> >>
>> >>> >>
>> >>> >> --
>> >>> >> ___________________________________________
>> >>> >> Andrew J. P. Maclean
>> >>> >> Centre for Autonomous Systems
>> >>> >> The Rose Street Building J04
>> >>> >> The University of Sydney 2006 NSW
>> >>> >> AUSTRALIA
>> >>> >> Ph: +61 2 9351 3283
>> >>> >> Fax: +61 2 9351 7474
>> >>> >> URL: http://www.acfr.usyd.edu.au/
>> >>> >> ___________________________________________
>> >>> >
>> >>> >
>> >>
>> >>
>> >
>>
>
>
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