VTK/Examples/Cxx/Utilities/KnownLengthArrayOfVectors

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This example creates a VTK style float array of vectors. This can be easily interchanged with vtkIntArray, vtkDoubleArray, etc.

VectorArrayKnownLength.cxx

#include <vtkSmartPointer.h>
#include <vtkFloatArray.h>
 
int main(int, char *[])
{
  vtkSmartPointer<vtkFloatArray> distances =
    vtkSmartPointer<vtkFloatArray>::New();
  distances->SetName("Distances");
  distances->SetNumberOfComponents(3);
  distances->SetNumberOfTuples(5);
 
  //set values
  for(vtkIdType i = 0; i < distances->GetNumberOfTuples(); i++)
    {
    float tuple[3];
    tuple[0] = (float)i + 0.1;
    tuple[1] = (float)i + 0.2;
    tuple[2] = (float)i + 0.3;
    distances->SetTuple(i, tuple);
    }
 
  //get values
  for(vtkIdType i = 0; i < distances->GetNumberOfTuples(); i++)
    {
    double d[3];
    distances->GetTuple(i, d);
    std::cout << d[0] << " " << d[1] << " " << d[2] << std::endl;
    }
 
  return EXIT_SUCCESS;
}

CMakeLists.txt

cmake_minimum_required(VERSION 2.6)
 
PROJECT(Array)
 
FIND_PACKAGE(VTK REQUIRED)
INCLUDE(${VTK_USE_FILE})
 
ADD_EXECUTABLE(VectorArrayKnownLength VectorArrayKnownLength.cxx)
TARGET_LINK_LIBRARIES(VectorArrayKnownLength vtkHybrid)
Retrieved from "http://batchmake.org/Wiki/VTK/Examples/Cxx/Utilities/KnownLengthArrayOfVectors"
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