[vtkusers] (no subject) (vtkImageWeightedSum)

Tue Aug 21 11:18:49 EDT 2007

Hi, thanks for your help again.

I am now using the CVS version and I can use vtkImageWeightedSum.
I have now some problems using it, I wondered if you could help me.

The software I'm coding is using ITK, VTK and wxWidget.
I'm trying to display, on a wxWidget Interface, an image which is a result
of a combination of 3 images (thanks to vtkImageWeightedSum).

Here is a little schema :
3 ITK images ---[connectorITKtoVTK]---> 3 VTK images ---[input]--->
vtkImageWeightedSum ---[input]--->vtkImageViewer2 ---[render]--->
wxVTKRenderWindowInteractor ---[add]--->wxWindow

This hwas working when I was skipping the vtkImageWeightedSum part (that is
to say when I put the output of a connector into the input of an
ImageViewer.

Here is likely what I do :

vtkImageWeightedSum *imageWeightedSumSPGR = vtkImageWeightedSum::New();

imageWeightedSumSPGR->SetInput(connector1_SPGR->GetOutput());
imageWeightedSumSPGR->AddInput(connector2_SPGR->GetOutput());
imageWeightedSumSPGR->AddInput(connectorM_SPGR->GetOutput());

viewerSPGR->SetInput( imageWeightedSum->GetOutput() ); // An error occures
here.

------------

Here is the error (sorry for the length of it) :

*** glibc detected *** ./bin/Midway: free(): invalid pointer: 0x08de5548
***
======= Backtrace: =========
/lib/tls/i686/cmov/libc.so.6[0xb3af08bd]
/lib/tls/i686/cmov/libc.so.6(__libc_free+0x84)[0xb3af0a44]
/usr/lib/libstdc++.so.6(_ZdlPv+0x21)[0xb3c79fc1]
./bin/Midway(_ZN9__gnu_cxx13new_allocatorISt10_List_nodeIN3itk12SmartPointerINS2_11LightObjectEEEEE10deallocateEPS6_j+0x11)[0x80b9509]
./bin/Midway(_ZNSt10_List_baseIN3itk12SmartPointerINS0_11LightObjectEEESaIS3_EE11_M_put_nodeEPSt10_List_nodeIS3_E+0x20)[0x80b94f6]
./bin/Midway(_ZNSt10_List_baseIN3itk12SmartPointerINS0_11LightObjectEEESaIS3_EE8_M_clearEv+0x44)[0x80b94d2]
./bin/Midway(_ZNSt10_List_baseIN3itk12SmartPointerINS0_11LightObjectEEESaIS3_EED2Ev+0x12)[0x80b942e]
./bin/Midway(_ZNSt4listIN3itk12SmartPointerINS0_11LightObjectEEESaIS3_EED1Ev+0x11)[0x80b9419]
/home/karanga/Installation/kitware-shared-03-07/lib/InsightToolkit/libITKIO.so.3.2(_ZN3itk14ImageIOFactory13CreateImageIOEPKcNS0_12FileModeTypeE+0x27f)[0xb6ecf7d3]
./bin/Midway(_ZN3itk15ImageFileReaderINS_5ImageIdLj3EEENS_25DefaultConvertPixelTraitsIdEEE25GenerateOutputInformationEv+0x334)[0x80c27da]
/home/karanga/Installation/kitware-shared-03-07/lib/InsightToolkit/libITKCommon.so.3.2(_ZN3itk13ProcessObject23UpdateOutputInformationEv+0x1b3)[0xb70a4697]
./bin/Midway(_ZN3itk9ImageBaseILj3EE23UpdateOutputInformationEv+0x88)[0x80c4504]
/home/karanga/Installation/kitware-shared-03-07/lib/InsightToolkit/libITKCommon.so.3.2(_ZN3itk13ProcessObject23UpdateOutputInformationEv+0xd6)[0xb70a45ba]
/home/karanga/Installation/kitware-shared-03-07/lib/InsightToolkit/libITKBasicFilters.so.3.2(_ZN3itk18VTKImageExportBase25UpdateInformationCallbackEv+0x18)[0xb6f9b886]
/home/karanga/Installation/kitware-shared-03-07/lib/InsightToolkit/libITKBasicFilters.so.3.2(_ZN3itk18VTKImageExportBase33UpdateInformationCallbackFunctionEPv+0x1a)[0xb6f9ba90]
/home/karanga/Installation/kitware-shared-03-07/lib/libvtkImaging.so.5.1(_ZN14vtkImageImport32InvokeUpdateInformationCallbacksEv+0x3b)[0xb6211e53]
/home/karanga/Installation/kitware-shared-03-07/lib/libvtkImaging.so.5.1(_ZN23vtkImageImportExecutive14ProcessRequestEP14vtkInformationPP20vtkInformationVectorS3_+0x59)[0xb6219e1b]
/home/karanga/Installation/kitware-shared-03-07/lib/libvtkFiltering.so.5.1(_ZN12vtkExecutive15ForwardUpstreamEP14vtkInformation+0x168)[0xb599b102]
/home/karanga/Installation/kitware-shared-03-07/lib/libvtkFiltering.so.5.1(_ZN23vtkDemandDrivenPipeline14ProcessRequestEP14vtkInformationPP20vtkInformationVectorS3_+0x1ef)[0xb5994bb7]
/home/karanga/Installation/kitware-shared-03-07/lib/libvtkFiltering.so.5.1(_ZN32vtkStreamingDemandDrivenPipeline14ProcessRequestEP14vtkInformationPP20vtkInformationVectorS3_+0x29e)[0xb5ad3b74]
/home/karanga/Installation/kitware-shared-03-07/lib/libvtkFiltering.so.5.1(_ZN23vtkDemandDrivenPipeline17UpdateInformationEv+0x104)[0xb5995162]
/home/karanga/Installation/kitware-shared-03-07/lib/libvtkFiltering.so.5.1(_ZN32vtkStreamingDemandDrivenPipeline6UpdateEi+0x27)[0xb5ad3bcf]
/home/karanga/Installation/kitware-shared-03-07/lib/libvtkFiltering.so.5.1(_ZN12vtkExecutive6UpdateEv+0x3c)[0xb59996e2]
/home/karanga/Installation/kitware-shared-03-07/lib/libvtkFiltering.so.5.1(_ZN23vtkDemandDrivenPipeline6UpdateEv+0x1e)[0xb5994e3c]
/home/karanga/Installation/kitware-shared-03-07/lib/libvtkFiltering.so.5.1(_ZN32vtkStreamingDemandDrivenPipeline6UpdateEv+0x1e)[0xb5ad3ba0]
/home/karanga/Installation/kitware-shared-03-07/lib/libvtkFiltering.so.5.1(_ZN12vtkAlgorithm6UpdateEv+0x2b)[0xb5947a31]
./bin/Midway(_ZN7MyFrame11PrintImagesEv+0xf8)[0x80e63e6]
./bin/Midway(_ZN7MyFrame5OnNewER14wxCommandEvent+0x65)[0x80e7277]
/usr/local/lib/libwx_based-2.6.so.0(_ZNK12wxAppConsole11HandleEventEP12wxEvtHandlerMS0_FvR7wxEventES3_+0x43)[0xb7a2111f]
/usr/local/lib/libwx_based-2.6.so.0(_ZN12wxEvtHandler21ProcessEventIfMatchesERK21wxEventTableEntryBasePS_R7wxEvent+0xe2)[0xb7abd56c]
/usr/local/lib/libwx_based-2.6.so.0(_ZN16wxEventHashTable11HandleEventER7wxEventP12wxEvtHandler+0xd8)[0xb7abf028]
/usr/local/lib/libwx_based-2.6.so.0(_ZN12wxEvtHandler12ProcessEventER7wxEvent+0x146)[0xb7abf198]
/usr/local/lib/libwx_gtk2d_core-2.6.so.0[Abandon (core dumped)

I don't know how to understand this "invalid pointer".
I verified that my pointers where all initialised and they are.
I tried with ddd to find out more, but the errors occures on a deep stack
in vtk sources and I'm not experienced enough to understand to problem.

Do you have any idea, with what I said, of where I did wrong ?

In advance, thanks again for your help.

Bye

Pierre

----------------------------------------
> Date: Tue, 21 Aug 2007 09:08:59 +0800
> From: pfb at exadios.com
> To: vtkusers at vtk.org
> Subject: Re: [vtkusers] (no subject)
> 
> Hi;
> 
> On Mon, 20 Aug 2007, Cory Quammen wrote:
> 
> > Hi Pierre,
> >
> > There is not currently an official 5.1.0 release; it is still under
> > development. You can grab the most recent code by accessing the CVS
> > repository.  Directions for doing so are here:
> > http://www.vtk.org/get-software.php#cvs. Be aware that if you do grab
> > the CVS source code, it may contain bleeding-edge features that
> > haven't been tested very well and may cause instability in your
> > application.
> 
> As you point out the CVS release (a.k.a. vtk-nightly) is often unstable.
> However, it is often possible to back port a particular vtkAlgorithm
> from vtk-nightly to VTK 5.0.3. This may avoid the general instability
> of vtk-nightly.
> 
> >
> > For documentation on vtk 5.0.3, see: http://www.vtk.org/doc/release/5.0/html/
> >
> > Cory
> >
> > On 8/20/07, Pierre SCHMITT  wrote:
> > >
> > > Hi,
> > >
> > > I am doing an internship, and I've been told to use the vtkImageWeightedSum
> > > class for my work.
> > > It is described in the documentation of a 5.1.0 version of vtk, but mine is
> > > the 5.0.3, latest release on vtk.org.
> > > It seems there is no 5.1.0 downloadable yet. Or did I miss something ?
> > >
> > > Could someone help me please ?
> > > Thanks a lot.
> > >
> > > Bye
> > >
> > > Pierre
> 
> Cheers
> 
> -- 
> Peter F Bradshaw: http://www.exadios.com (public keys avaliable there).
> Personal site: http://personal.exadios.com
> "I love truth, and the way the government still uses it occasionally to
>  keep us guessing." - Sam Kekovich.
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