[Insight-developers] failing tests with TimeVaryingVelocityFieldTransform

[Luis Ibanez]

Hi Nick,

I just pushed a patch to Gerrit.

It takes care of the CopyInformation() problem.

It turned out that I missed that the two images had different
dimensions and therefore the CopyInformation method can't
be used here to copy Origin, Spacing, Direction...

The patch that I just pushed
http://review.source.kitware.com/#change,3014

restored the code in your original patch
http://review.source.kitware.com/#change,2931

and adds more readable declarations of types and variables.

Those are the good news...


The bad news are that in the new patch
the test fail with the message:

....
468:      LowerTimeBound: 0.3
468:      UpperTimeBound: 0.75
468:      NumberOfIntegrationSteps: 10
468: Estimated forward displacement vector: [0, 0, 0]
468: Failed to produce the correct forward integration.


Any hints on what could be the source of the problem ?


    Thanks

       Luis


--------------------------
On Fri, Sep 30, 2011 at 9:51 AM, Nicholas Tustison <ntustison at gmail.com> wrote:
> Okay, thanks Luis.  That makes sense.  And thanks again
> for working on this.
>
>
> On Sep 30, 2011, at 9:50 AM, Luis Ibanez wrote:
>
>> Hi Nick,
>>
>> That looks familiar.
>>
>> Is due to a change I made in the filter.
>>
>> Replaced
>>
>> SetOrigin
>> SetSpacing
>> SetRegions
>>
>> with CopyInformation,
>>
>> but I probably should use a method
>> that is specific to Images.
>>
>> I'll take care of fixing it.
>>
>>
>>    Thanks
>>
>>
>>        Luis
>>
>>
>> ----------------------
>> On Fri, Sep 30, 2011 at 8:49 AM, Nicholas Tustison <ntustison at gmail.com> wrote:
>>> Hi Luis,
>>> Does the error associated with the TimeVaryingVelocityFieldTransforms
>>> below look familiar to you or should I dive into trying to fix it?
>>> Thanks,
>>> Nick
>>>
>>> Test output
>>>
>>> ITK test driver caught an ITK exception:
>>>
>>> itk::ExceptionObject (0x1189a20)
>>> Location: "void itk::ImageBase<VImageDimension>::CopyInformation(const
>>> itk::DataObject*) [with unsigned int VImageDimension = 3u]"
>>> File:
>>> /Users/ibanez/Dashboards/src/ITK/Modules/Core/Common/include/itkImageBase.hxx
>>> Line: 334
>>> Description: itk::ERROR: Image(0x1189360): itk::ImageBase::CopyInformation()
>>> cannot cast PKN3itk10DataObjectE to PKN3itk9ImageBaseILj3EEE
>>>
>>>
>
>