[vtkusers] vtkTextActor segfaults my render window

[Bill Lorensen]

Have you tried running the example with valgrind?

valgrind  --trace-children=yes --quiet --tool=memcheck
--leak-check=yes --show-reachable=yes --num-callers=100 --verbose
--demangle=yes ./DrawText

On Wed, Dec 9, 2009 at 4:57 PM, Bill Lorensen <bill.lorensen at gmail.com> wrote:
> 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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>>
>>
>