This is a bug in VTK, IMHO. You can reproduce the crash using the
following Python code (using the swig VTK bindings):
--------------------------------------------------------------------------------
import vtk
reader = vtk.vtkVRMLImporter()
reader.SetFileName('foo.wrl')
reader.Read()
--------------------------------------------------------------------------------
Running gdb on this gives the following backtrace:
--------------------------------------------------------------------------------
Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0xb7d506c0 (LWP 20790)]
0xb462dc71 in vtkVRMLImporter::exitField () from
/usr/lib/libvtkHybrid.so.5.0
(gdb) backtrace
#0 0xb462dc71 in vtkVRMLImporter::exitField ()
from /usr/lib/libvtkHybrid.so.5.0
#1 0xb46322f8 in yyparse () from /usr/lib/libvtkHybrid.so.5.0
#2 0xb46326d7 in vtkVRMLImporter::ImportBegin ()
from /usr/lib/libvtkHybrid.so.5.0
#3 0xb5feb8cc in vtkImporter::Read () from
/usr/lib/libvtkRendering.so.5.0
#4 0xb61d607e in ?? () from /usr/lib/libvtkRenderingPythonD.so.5.0
#5 0x080de562 in PyEval_EvalFrameEx ()
#6 0x080e00b8 in PyEval_EvalCodeEx ()
#7 0x080e0217 in PyEval_EvalCode ()
#8 0x080fe0e1 in PyRun_FileExFlags ()
#9 0x080fe43a in PyRun_SimpleFileExFlags ()
#10 0x0805c882 in Py_Main ()
#11 0x0805b972 in main ()
--------------------------------------------------------------------------------
I believe the bug should be reallocated.
Gaël
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