[vtkusers] vtkTextActor segfaults my render window

[Bill Lorensen]

I see. It is linking against the paraview version of VTK. That's what
threw me. When I run David's example against VTK head, it runs fine.

Maybe someone with a paraview vtk can try the example?

Bill

On Wed, Dec 9, 2009 at 4:52 PM, Jérôme <jerome.velut at gmail.com> wrote:
> Bill,
>
> this is the one I posted previously. I hope it is helpful? I was checking
> the dashboard for failed tests, but I am simply lost in all these results...
>
> Thanks for your interest!
>
> Jerome
>
> 2009/12/9 Bill Lorensen <bill.lorensen at gmail.com>
>>
>> What traceback do you get with David's example?
>>
>> On Wed, Dec 9, 2009 at 4:29 PM, Jérôme <jerome.velut at gmail.com> wrote:
>> > Continuing my investigation. It seems I am alone with that problem.
>> > David Doria kindly put an example of a use-case of vtkTextActor on the
>> > wiki:
>> > http://www.cmake.org/Wiki/Display_text
>> >
>> > I confirm my segfault with that code, only when linking to VTK built in
>> > release. It does not make difference if my code is complied Debug or
>> > Release.
>> >
>> > Here is the gdb backtrace:
>> > (gdb) bt
>> > #0  0x005f7a72 in vtk_freetype_FTC_CMapCache_Lookup ()
>> >    from
>> > /home/dje/Softwares/ParaView-3.7/Release/bin/libvtkfreetype.so.pv3.7
>> > #1  0x009830bc in vtkFreeTypeUtilities::GetGlyphIndex(unsigned long,
>> > char,
>> > unsigned int*) ()
>> >    from
>> > /home/dje/Softwares/ParaView-3.7/Release/bin/libvtkRendering.so.pv3.7
>> > #2  0x00987b50 in vtkFreeTypeUtilities::GetBoundingBox(vtkTextProperty*,
>> > char const*, int*) ()
>> >    from
>> > /home/dje/Softwares/ParaView-3.7/Release/bin/libvtkRendering.so.pv3.7
>> > #3  0x009883dd in vtkFreeTypeUtilities::PrepareImageData(vtkImageData*,
>> > vtkTextProperty*, char const*, int*, int*) ()
>> >    from
>> > /home/dje/Softwares/ParaView-3.7/Release/bin/libvtkRendering.so.pv3.7
>> > #4  0x009888fe in vtkFreeTypeUtilities::RenderString(vtkTextProperty*,
>> > char
>> > const*, vtkImageData*) ()
>> >    from
>> > /home/dje/Softwares/ParaView-3.7/Release/bin/libvtkRendering.so.pv3.7
>> > #5  0x00946e3e in vtkTextActor::RenderOpaqueGeometry(vtkViewport*) ()
>> >    from
>> > /home/dje/Softwares/ParaView-3.7/Release/bin/libvtkRendering.so.pv3.7
>> > #6  0x008f87a6 in vtkRenderer::UpdateGeometry() ()
>> >    from
>> > /home/dje/Softwares/ParaView-3.7/Release/bin/libvtkRendering.so.pv3.7
>> > #7  0x009cf547 in vtkOpenGLRenderer::DeviceRender() ()
>> >    from
>> > /home/dje/Softwares/ParaView-3.7/Release/bin/libvtkRendering.so.pv3.7
>> > #8  0x008f91fb in vtkRenderer::Render() ()
>> >    from
>> > /home/dje/Softwares/ParaView-3.7/Release/bin/libvtkRendering.so.pv3.7
>> > #9  0x008f4b7b in vtkRendererCollection::Render() ()
>> > ---Type <return> to continue, or q <return> to quit---
>> >    from
>> > /home/dje/Softwares/ParaView-3.7/Release/bin/libvtkRendering.so.pv3.7
>> > #10 0x0090789f in vtkRenderWindow::DoStereoRender() ()
>> >    from
>> > /home/dje/Softwares/ParaView-3.7/Release/bin/libvtkRendering.so.pv3.7
>> > #11 0x00907c80 in vtkRenderWindow::DoFDRender() ()
>> >    from
>> > /home/dje/Softwares/ParaView-3.7/Release/bin/libvtkRendering.so.pv3.7
>> > #12 0x009090ab in vtkRenderWindow::DoAARender() ()
>> >    from
>> > /home/dje/Softwares/ParaView-3.7/Release/bin/libvtkRendering.so.pv3.7
>> > #13 0x00907dc5 in vtkRenderWindow::Render() ()
>> >    from
>> > /home/dje/Softwares/ParaView-3.7/Release/bin/libvtkRendering.so.pv3.7
>> > #14 0x00a0d184 in vtkXOpenGLRenderWindow::Render() ()
>> >    from
>> > /home/dje/Softwares/ParaView-3.7/Release/bin/libvtkRendering.so.pv3.7
>> > #15 0x08049c1b in main () at /home/dje/Codes/TestFilter/DrawText.cxx:50
>> >
>> >
>> > For now, I am working with ParaView/VTK in Debug built. But I hope
>> > someone
>> > will explain me what is the trouble with my release builds.
>> >
>> > Jerome
>> >
>> > 2009/12/9 Jérôme <jerome.velut at gmail.com>
>> >>
>> >> I just compiled ParaView/VTK in Debug mode, the problem disappears...
>> >> So I
>> >> can be more precise about the reproducibility check:
>> >>  Could you tell me if you have a segfault with really simple script in
>> >> a
>> >> linux (F12) release built?
>> >>
>> >> Thanks again,
>> >> Jerome
>> >>
>> >> 2009/12/8 Jérôme <jerome.velut at gmail.com>
>> >>>
>> >>> Dear all,
>> >>> It seems that I misused the vtkTextActor for a while: a recent CVS
>> >>> checkout makes a simple vtkTextActor rendering crashing by seg fault.
>> >>> I
>> >>> noted this error inside a ParaView cxx plugin, but now I have isolated
>> >>> the
>> >>> cause: A vtkTextActor added to the renderer yields the crash.
>> >>>
>> >>> Please, find attach a python script that reproduces the bug (by me, at
>> >>> least... my settings may be guilty). Could you tell me if you have
>> >>> such an
>> >>> error, and if my way of using text actor is wrong?
>> >>>
>> >>> Thanks a lot!
>> >>>
>> >>> Jerome
>> >>
>> >
>> >
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