Print ITK Transform classes and their number of parameters

gistfile1.txt

/*
Related to:
https://github.com/SuperElastix/elastix/pull/358#issuecomment-731736374

Niels Dekker, LKEB, Leiden University Medical Center, 2020
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
*/

#include "itkTransformBase.h"
#include "itkTransformFactoryBase.h"

int main()
{
    int i{};
    std::cout << "n | " << "ITK class | # Parameters | # FixedParameters\n";

    for (const auto className : itk::TransformFactoryBase::GetFactory()->GetClassOverrideWithNames())
    {
        const auto instance = itk::ObjectFactoryBase::CreateInstance(className.c_str());
        assert(instance != nullptr);

        if (dynamic_cast<const itk::TransformBaseTemplate<float>*>(&*instance) == nullptr)
        {
            const auto inputTransform = dynamic_cast<const itk::TransformBaseTemplate<double>*>(&*instance);
            assert(inputTransform != nullptr);
            std::cout << ++i 
                << " | " << (typeid(*instance).name() + 11)
                << " | " << inputTransform->GetParameters().size()
                << " | " << inputTransform->GetFixedParameters().size()
                << '\n';
        }
    }
}