[Insight-users] Initialize VersorRigid3DTransform via SetTranslation and SetMatrix?

[Michael Schildt]

Hello,

 >>>>>>>>>>>>>>>>>>>>>>>> small test program <<<<<<<<<<<<<<<<<<<<<<
// Set Center, Translation and Rotation
 itk::VersorRigid3DTransform<double>::InputPointType center; 
  itk::VersorRigid3DTransform<double>::TranslationType translation;
  itk::VersorRigid3DTransform<double>::MatrixType matr;
  itk::VersorRigid3DTransform<double>::ParametersType params, fix;
  center[0] = 2.0;
  center[1] = 3.0;
  center[2] = 4.0;
  transform->SetCenter(center); 
  params = transform->GetParameters();
  fix = transform->GetFixedParameters();
  cout << "Params: " << params << " Fixed: " << fix << endl;
  translation[0] = 3;
  translation[1] = 12;
  translation[2] = -1;
  transform->SetTranslation(translation);
  params = transform->GetParameters();
  fix = transform->GetFixedParameters();
  cout << "Params: " << params << " Fixed: " << fix << endl;
  matr.SetIdentity();
  matr(0,0) = matr(1,1) = cos(30/180*M_PI);
  matr(0,1) = -sin(30/180*M_PI);
  matr(1,0) = sin(30/180*M_PI);
  transform->SetMatrix(matr);
  params = transform->GetParameters();
  fix = transform->GetFixedParameters();
  cout << "Params: " << params << " Fixed: " << fix << endl;

 >>>>>>>>>>>>>>>>>>>>>>>>>>>> Output is <<<<<<<<<<<<<<<<<<<<<<<<

Params: [0, 0, 0, 0, 0, 0] Fixed: [2, 3, 4]
Params: [0, 0, 0, 3, 12, -1] Fixed: [2, 3, 4]
Params: [0, 0, 0, 3, 12, -1] Fixed: [2, 3, 4]

Should the last SetMatrix() call change the parameters of the versor too?

Reguards,    
    Michael Schildt