[Insight-users] how to dynamic choose different method?

[wavelethe at pku.org.cn]

i want to use different method for registration, and maybe make the dicision in runtime.
i had tried such as:

  typedef itk::Optimizer       OptimizerType;
  typedef itk::RegularStepGradientDescentOptimizer       GradientOptimizerType;
  OptimizerType::Pointer      optimizer     = GradientOptimizerType::New();
  registration->SetOptimizer(     optimizer     );

unluckily, these codes produce many errors.
what should i do? please help me!

best regards!
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