[vtkusers] vtk6 porting question (segfault)

Bill Lorensen bill.lorensen at gmail.com
Tue Aug 14 16:06:53 EDT 2012 

The wiki examples should build with default settings for cmake.



On Tue, Aug 14, 2012 at 3:42 PM, Trevor Irons <trevorirons at gmail.com> wrote:

> Correction, I was following these directions.
>
> http://vtk.org/Wiki/VTK/Examples/Instructions/ForUsers
>
> -- Trevor
>
>
>
>
> On 14 August 2012 19:41, Trevor Irons <trevorirons at gmail.com> wrote:
>
>> Thanks for the help. I think it's come down to not having
>> VTK_USE_RENDERING defined.
>> At least I get this error when following the directions on
>> http://vtk.org/Wiki/VTK/Examples/Cxx.
>>
>> However, this does not seem to be an option when configuring VTK. There
>> is VTK_Group_Rendering, but no VTK_USE_RENDERING option.
>>
>> I also find this strange, as in my installation directory
>>  $ ls -l  libvtkRendering*.so
>>
>> libvtkRenderingAnnotation-6.0.so
>> libvtkRenderingGL2PS-6.0.so
>> libvtkRenderingMathText-6.0.so
>> libvtkRenderingAnnotationPython27D-6.0.so
>> libvtkRenderingGL2PSPython27D-6.0.so
>> libvtkRenderingMathTextPython27D-6.0.so
>> libvtkRenderingContext2D-6.0.so
>> libvtkRenderingHybridOpenGL-6.0.so           libvtkRenderingOpenGL-6.0.so
>> libvtkRenderingContext2DPython27D-6.0.so
>> libvtkRenderingHybridOpenGLPython27D-6.0.so
>> libvtkRenderingOpenGLPython27D-6.0.so
>> libvtkRenderingCore-6.0.so
>> libvtkRenderingImage-6.0.so                  libvtkRenderingVolume-6.0.so
>> libvtkRenderingCorePython27D-6.0.so
>> libvtkRenderingImagePython27D-6.0.so
>> libvtkRenderingVolumeOpenGL-6.0.so
>> libvtkRenderingFreeType-6.0.so                 libvtkRenderingLOD-6.0.so
>> libvtkRenderingVolumeOpenGLPython27D-6.0.so
>> libvtkRenderingFreeTypeOpenGL-6.0.so
>> libvtkRenderingLODPython27D-6.0.so
>> libvtkRenderingVolumePython27D-6.0.so
>> libvtkRenderingFreeTypeOpenGLPython27D-6.0.so
>> libvtkRenderingLabel-6.0.so
>>
>> libvtkRenderingFreeTypePython27D-6.0.so
>> libvtkRenderingLabelPython27D-6.0.so
>>
>> Generates quite a lot of hits. Thanks again for the tips and suggestions.
>>
>> -- Trevor
>>
>>
>>
>>
>> On 14 August 2012 17:54, Bill Lorensen <bill.lorensen at gmail.com> wrote:
>>
>>> The built examples will be in the bin directory of your VTK.
>>>
>>> A more extensive set of examples are on the Wiki:
>>> http://vtk.org/Wiki/VTK/Examples/Cxx
>>>
>>> each has a valid CMakeLists.txt file.
>>>
>>> You can also build them all by following these instructions:
>>> http://vtk.org/Wiki/VTK/Examples/Instructions/ForUsers
>>>
>>> Bill
>>>
>>>
>>> On Tue, Aug 14, 2012 at 1:48 PM, Bill Lorensen <bill.lorensen at gmail.com>wrote:
>>>
>>>> PLease keep repiles on the list.
>>>>
>>>> For VTK6 use:
>>>>
>>>> ${VTK_LIBRARIES} instead of vtkRendering
>>>>
>>>>
>>>> On Tue, Aug 14, 2012 at 1:02 PM, Trevor Irons <trevorirons at gmail.com>wrote:
>>>>
>>>>> Hi Bill! Wow.
>>>>>
>>>>> I guess this is the underlying question. I enabled build examples in
>>>>> CMake. But I honestly can't find where these are compiled to. My example is
>>>>> from
>>>>>
>>>>> VTKSOURCE/Examples/Tutorial/Step1/Cxx/Cone.cxx
>>>>>
>>>>> And the CMakeLists there specifies
>>>>>
>>>>> PROJECT (Step1)
>>>>>
>>>>> IF(NOT VTK_BINARY_DIR)
>>>>> FIND_PACKAGE(VTK REQUIRED)
>>>>> IF(NOT VTK_USE_RENDERING)
>>>>>   MESSAGE(FATAL_ERROR "Example ${PROJECT_NAME} requires
>>>>> VTK_USE_RENDERING.")
>>>>> ENDIF(NOT VTK_USE_RENDERING)
>>>>> INCLUDE(${VTK_USE_FILE})
>>>>> ENDIF(NOT VTK_BINARY_DIR)
>>>>>
>>>>> ADD_EXECUTABLE(Cone Cone.cxx)
>>>>> TARGET_LINK_LIBRARIES(Cone vtkRendering)
>>>>>
>>>>> But vtkRendering I think is a pre 6.0 library? Where in the build
>>>>> directory are the Examples built? Is there an updated CmakeLists file there?
>>>>>
>>>>> Thanks so much,
>>>>>
>>>>> -- Trevor
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> On 14 August 2012 16:51, Bill Lorensen <bill.lorensen at gmail.com>wrote:
>>>>>
>>>>>> Have you tried building your example with CMake. I suspect you are
>>>>>> missing some libraries.
>>>>>>
>>>>>> On Tue, Aug 14, 2012 at 11:47 AM, Trevor Irons <trevorirons at gmail.com
>>>>>> > wrote:
>>>>>>
>>>>>>> Sorry if this has been asked before, but I couldn't find it.
>>>>>>>
>>>>>>> I am having trouble porting an application over to VTK 6.0. I
>>>>>>> followed the guide at
>>>>>>> http://www.vtk.org/Wiki/VTK/VTK_6_Migration_Guide
>>>>>>>
>>>>>>> I am able to get my project to compile but I hit a seg fault at
>>>>>>> execution. As a minimal example consider a pared down Cone.cxx from the
>>>>>>> Examples
>>>>>>>
>>>>>>> // First include the required header files for the VTK classes we
>>>>>>> are using.
>>>>>>> #include "vtkConeSource.h"
>>>>>>> #include "vtkPolyDataMapper.h"
>>>>>>>
>>>>>>> int main()
>>>>>>> {
>>>>>>>
>>>>>>>   vtkConeSource *cone = vtkConeSource::New();
>>>>>>>   cone->SetHeight( 3.0 );
>>>>>>>   cone->SetRadius( 1.0 );
>>>>>>>   cone->SetResolution( 10 );
>>>>>>>
>>>>>>>   vtkPolyDataMapper *coneMapper = vtkPolyDataMapper::New();
>>>>>>>   coneMapper->SetInputConnection( cone->GetOutputPort() );
>>>>>>>   //coneMapper->SetInputData( cone->GetOutput()
>>>>>>> );                         // I tried this too
>>>>>>>
>>>>>>>   exit(0);
>>>>>>>
>>>>>>> }
>>>>>>>
>>>>>>> I have been compiling with
>>>>>>>
>>>>>>> g++ Cone.cxx -g -g3  -o testit  -I/usr/local/include/vtk-6.0/
>>>>>>> -lvtkRenderingCore-6.0  -lvtkFiltersSources-6.0
>>>>>>> -lvtkCommonExecutionModel-6.0
>>>>>>>
>>>>>>> on
>>>>>>>
>>>>>>> g++ --version
>>>>>>> g++ (GCC) 4.7.1 20120721 (prerelease)
>>>>>>> Copyright (C) 2012 Free Software Foundation, Inc.
>>>>>>> This is free software; see the source for copying conditions.  There
>>>>>>> is NO
>>>>>>> warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR
>>>>>>> PURPOSE.
>>>>>>>
>>>>>>> And when I execute, I just see a segmentation fault. I assume I am
>>>>>>> doing something wrong, but I can't figure out what.
>>>>>>>
>>>>>>> I ran it through gdb, but it just said the fault was in
>>>>>>> SetInputConnection, or SetInputData, I tried both. This is with the tip of
>>>>>>> VTK from the git repository.
>>>>>>>
>>>>>>> Thanks for any suggestions.
>>>>>>>
>>>>>>> -- Trevor
>>>>>>>
>>>>>>>
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>>>>>>>
>>>>>>
>>>>>>
>>>>>> --
>>>>>> Unpaid intern in BillsBasement at noware dot com
>>>>>>
>>>>>>
>>>>>
>>>>
>>>>
>>>> --
>>>> Unpaid intern in BillsBasement at noware dot com
>>>>
>>>>
>>>
>>>
>>> --
>>> Unpaid intern in BillsBasement at noware dot com
>>>
>>>
>>
>


-- 
Unpaid intern in BillsBasement at noware dot com
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