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ArrayToTable

vtk-examples/Cxx/InfoVis/ArrayToTable

Question

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Code

ArrayToTable.cxx

#include <vtkArrayData.h>
#include <vtkArrayToTable.h>
#include <vtkDenseArray.h>
#include <vtkNew.h>
#include <vtkTable.h>

int main(int, char*[])
{
  vtkNew<vtkDenseArray<int>> array;
  array->Resize(2, 4);

  // set values
  std::cout << "There are " << array->GetExtents()[0].GetEnd() << std::endl;
  std::cout << "There are " << array->GetExtents()[1].GetEnd() << std::endl;

  for (vtkIdType i = 0; i < array->GetExtents()[0].GetEnd(); i++)
  {
    for (vtkIdType j = 0; j < array->GetExtents()[1].GetEnd(); j++)
    {
      array->SetValue(i, j, i + j);
    }
  }

  vtkNew<vtkArrayData> arrayData;
  arrayData->AddArray(array);

  vtkNew<vtkArrayToTable> arrayToTable;
  arrayToTable->SetInputData(arrayData);
  arrayToTable->Update();

  auto table = arrayToTable->GetOutput();
  table->Dump();

  return EXIT_SUCCESS;
}

CMakeLists.txt

cmake_minimum_required(VERSION 3.3 FATAL_ERROR)

project(ArrayToTable)

find_package(VTK COMPONENTS 
  vtkCommonCore
  vtkCommonDataModel
  vtkInfovisCore
  QUIET
)

if (NOT VTK_FOUND)
  message("Skipping ArrayToTable: ${VTK_NOT_FOUND_MESSAGE}")
  return ()
endif()
message (STATUS "VTK_VERSION: ${VTK_VERSION}")
if (VTK_VERSION VERSION_LESS "8.90.0")
  # old system
  include(${VTK_USE_FILE})
  add_executable(ArrayToTable MACOSX_BUNDLE ArrayToTable.cxx )
  target_link_libraries(ArrayToTable PRIVATE ${VTK_LIBRARIES})
else ()
  # include all components
  add_executable(ArrayToTable MACOSX_BUNDLE ArrayToTable.cxx )
  target_link_libraries(ArrayToTable PRIVATE ${VTK_LIBRARIES})
  # vtk_module_autoinit is needed
  vtk_module_autoinit(
    TARGETS ArrayToTable
    MODULES ${VTK_LIBRARIES}
    )
endif ()

Download and Build ArrayToTable

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

cd ArrayToTable/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:

./ArrayToTable

WINDOWS USERS

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