ITK/Examples/SimpleOperations/VariableLengthVector

VariableLengthVector.cxx

<source lang="cpp">

1. include <itkVariableLengthVector.h>
2. include <itkVector.h>
3. include <QtCore/qtextstream.h>

void VectorToVariableLengthVector(); void VariableLengthVectorToVector();

int main(int, char*[]) {

 typedef itk::VariableLengthVector<double> VectorType;
 VectorType v;
 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() {

 // Seems to work, but then crashes!
 
 typedef itk::Vector<double, 2> FixedVectorType;
 FixedVectorType fixedLengthVector;
 fixedLengthVector[0] = 1;
 fixedLengthVector[1] = 2;
 
 typedef itk::VariableLengthVector<double> VariableVectorType;
 VariableVectorType variableLengthVector;
 variableLengthVector.SetSize(fixedLengthVector.Size());
 variableLengthVector.SetData(fixedLengthVector.GetDataPointer(), 2i);
 std::cout << "variableLengthVector: " << variableLengthVector << std::endl;

}

void VariableLengthVectorToVector() {

 typedef itk::VariableLengthVector<double> VariableVectorType;
 VariableVectorType variableLengthVector;
 variableLengthVector.SetSize(2);
 
 variableLengthVector[0] = 1;
 variableLengthVector[1] = 2;

 typedef itk::Vector<double, 2> FixedVectorType;
 FixedVectorType fixedLengthVector;

 // This function doesn't exist!
 //fixedLengthVector.SetData(variableLengthVector.GetDataPointer());
 //std::cout << "fixedLengthVector: " << fixedLengthVector << std::endl;

}

</source>

CMakeLists.txt

<source lang="cmake"> cmake_minimum_required(VERSION 2.6)

PROJECT(VariableLengthVector)

FIND_PACKAGE(ITK REQUIRED) INCLUDE(${ITK_USE_FILE})

ADD_EXECUTABLE(VariableLengthVector VariableLengthVector.cxx) TARGET_LINK_LIBRARIES(VariableLengthVector ITKCommon)

</source>