[Insight-users] WG: BUG: itkVersorRigid3DTransformOptimizer

[Luis Ibanez]

Hi Gerald,

The invocation of IterationEvent() from the itkVersorRigid3DTransformOptimizer
seems to be working fine.

See here, for example, its use in the test  ImageRegistration8Test
http://www.cdash.org/CDash/testDetails.php?test=30890058&build=477408

This output was printed out from the Command/Observer that listens
to the IterationEvents of this optimizer.


This test is defined in

    Insight/Examples/Registration/ImageRegistration8.cxx


Are you calling the method StartRegistration() (  or the method Update() )
in the registration method ?


    Please let us know,


          Thanks


              Luis


----------------------------------------------------------------------------------------------------
On Wed, Nov 18, 2009 at 5:38 AM, Lodron, Gerald
<Gerald.Lodron at joanneum.at> wrote:
>
> Sorry, for sure i mean the itk::IterationEvent and not the update function.
>
>
>
>
> Hello,
>
> I tested the itkVersorRigid3DTransformOptimizer. It does not call the iteration update. Here my code:
>
> itk::Optimizer::Pointer optimizer;
>
> typedef itk::VersorRigid3DTransformOptimizer VROptimizer;
>
> optimizer = VROptimizer::New();
> dynamic_cast<VROptimizer*>(optimizer.GetPointer())->SetNumberOfIterations(200);
>
> CommandIterationUpdate<VROptimizer>::Pointer observer = CommandIterationUpdate<VROptimizer>::New();
> optimizer->AddObserver( itk::IterationEvent(), observer );
>
>
>
>        template<class OptimizerType>
>        class CommandIterationUpdate : public itk::Command
>        {
>        public:
>                typedef  CommandIterationUpdate                                         Self;
>                typedef  itk::Command                                                           Superclass;
>                typedef  itk::SmartPointer<CommandIterationUpdate>  Pointer;
>                itkNewMacro( CommandIterationUpdate );
>        protected:
>                CommandIterationUpdate() {};
>
>                typedef   const OptimizerType   *           OptimizerPointer;
>
>        public:
>
>                void Execute(itk::Object *caller, const itk::EventObject & event)
>                {
>                        Execute( (const itk::Object *)caller, event);
>                }
>
>                void Execute(const itk::Object * object, const itk::EventObject & event)
>                {
>                        OptimizerPointer optimizer =   dynamic_cast< OptimizerPointer >( object );
>                        if( ! itk::IterationEvent().CheckEvent( &event ) )
>                        {
>                                return;
>                        }
>                        std::cout << "Iteration " << optimizer->GetCurrentIteration() << " \t";
>                        std::cout << "Value "<< optimizer->GetValue() << " \t";
>                        std::cout << "Position " << optimizer->GetCurrentPosition() << std::endl;
>                }
>        };
>
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