# 3DArray

VTKExamples/Cxx/Utilities/3DArray

### Code

3DArray.cxx

    #include <vtkSmartPointer.h>
    #include <vtkDenseArray.h>

    int main(int, char *[])
    {
      // Create an N-D array
      vtkSmartPointer<vtkDenseArray<double> > array =
          vtkSmartPointer<vtkDenseArray<double> >::New();

      // Resize the array to 4x5x3
      array->Resize(4,5,3);

      // Set a value
      int i = 0; int j = 0; int k = 0;
      double value = 3.0;
      array->SetValue(i, j, k, value);

      // Get a value
      std::cout << array->GetValue(i,j,k) << std::endl;

      // Get size (bounds) of whole array
      cout << array->GetExtents() << endl;

      // Get size (bounds) of array dimensions
      std::cout << array->GetExtents()[0] << std::endl;
      std::cout << array->GetExtents()[1] << std::endl;
      std::cout << array->GetExtents()[2] << std::endl;

      // Get the bounds of the 0th dimension
      std::cout << array->GetExtents()[0].GetBegin() << std::endl;
      std::cout << array->GetExtents()[0].GetEnd() << std::endl;

      return EXIT_SUCCESS;
    }

### CMakeLists.txt

    cmake_minimum_required(VERSION 2.8)

    PROJECT(3DArray)

    find_package(VTK REQUIRED)
    include(${VTK_USE_FILE})

    add_executable(3DArray MACOSX_BUNDLE 3DArray.cxx )

    target_link_libraries(3DArray ${VTK_LIBRARIES})

### Download and Build 3DArray

Click here to download 3DArray and its CMakeLists.txt file. Once the tarball 3DArray.tar has been downloaded and extracted,

    cd 3DArray/build

If VTK is installed:

    cmake ..

If VTK is not installed but compiled on your system, you will need to specify the path to your VTK build:

    cmake -DVTK_DIR:PATH=/home/me/vtk_build ..

Build the project:

    make

and run it:

    ./3DArray

WINDOWS USERS PLEASE NOTE: Be sure to add the VTK bin directory to your path. This will resolve the VTK dll's at run time.