ITK  5.0.0
Insight Segmentation and Registration Toolkit
WikiExamples/SimpleOperations/VariableLengthVector.cxx
#include <itkVector.h>
void VectorToVariableLengthVector();
void VariableLengthVectorToVector();
int main(int, char*[])
{
v.SetSize(2);
v[0] = 1;
v[1] = 2;
std::cout << v << std::endl;
for(unsigned int i = 0; i < v.Size(); i++)
{
std::cout << v[i] << " ";
}
std::cout << std::endl;
VectorToVariableLengthVector();
VariableLengthVectorToVector();
return EXIT_SUCCESS;
}
void VectorToVariableLengthVector()
{
std::cout << "VectorToVariableLengthVector()" << std::endl;
using FixedVectorType = itk::Vector<double, 2>;
FixedVectorType fixedLengthVector;
fixedLengthVector[0] = 1;
fixedLengthVector[1] = 2;
using VariableVectorType = itk::VariableLengthVector<double>;
VariableVectorType variableLengthVector;
// This works
variableLengthVector.SetSize(fixedLengthVector.Size());
variableLengthVector.SetData(fixedLengthVector.GetDataPointer());
// This crashes with both true and false
//variableLengthVector.SetData(fixedLengthVector.GetDataPointer(), 2, true);
std::cout << "variableLengthVector: " << variableLengthVector << std::endl;
}
void VariableLengthVectorToVector()
{
std::cout << "VariableLengthVectorToVector()" << std::endl;
using VariableVectorType = itk::VariableLengthVector<double>;
VariableVectorType variableLengthVector;
variableLengthVector.SetSize(2);
variableLengthVector[0] = 1;
variableLengthVector[1] = 2;
using FixedVectorType = itk::Vector<double, 2>;
FixedVectorType fixedLengthVector;
for(unsigned int i = 0; i < FixedVectorType::GetVectorDimension(); i++)
{
fixedLengthVector[i] = variableLengthVector[i];
}
// This function doesn't exist!
//fixedLengthVector.SetData(variableLengthVector.GetDataPointer());
std::cout << "fixedLengthVector: " << fixedLengthVector << std::endl;
}