[vtkusers] vtkTextActor segfaults my render window

[Jérôme]

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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