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XMLPImageDataWriter

vtk-examples/Cxx/IO/XMLPImageDataWriter

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Code

XMLPImageDataWriter.cxx

#include <vtkImageCanvasSource2D.h>
#include <vtkNamedColors.h>
#include <vtkNew.h>
#include <vtkXMLPImageDataWriter.h>

#include <array>

int main(int, char*[])
{
  vtkNew<vtkNamedColors> colors;

  // Convert our unsigned char colors to doubles
  // Set draw color needs doubles.
  auto color1 = colors->GetColor3ub("SteelBlue").GetData();
  auto color2 = colors->GetColor3ub("PaleGoldenrod").GetData();
  std::array<double, 3> sourceColor1{0, 0, 0};
  std::array<double, 3> sourceColor2{0, 0, 0};
  for (auto i = 0; i < 3; ++i)
  {
    sourceColor1[i] = color1[i];
    sourceColor2[i] = color2[i];
  }

  vtkNew<vtkImageCanvasSource2D> drawing;
  drawing->SetNumberOfScalarComponents(3);
  drawing->SetScalarTypeToUnsignedChar();
  drawing->SetExtent(0, 20, 0, 50, 0, 1);
  drawing->SetDrawColor(sourceColor1.data());
  drawing->FillBox(0, 9, 0, 9);
  drawing->SetDrawColor(sourceColor2.data());
  drawing->DrawCircle(5, 5, 3);

  int numberOfPieces = 4;

  vtkNew<vtkXMLPImageDataWriter> writer;
  writer->SetInputConnection(drawing->GetOutputPort());
  writer->SetFileName("Test.pvti");
  writer->SetNumberOfPieces(numberOfPieces);
  writer->SetEndPiece(numberOfPieces - 1);
  writer->SetStartPiece(0);
  writer->Update();

  return EXIT_SUCCESS;
}

CMakeLists.txt

cmake_minimum_required(VERSION 3.3 FATAL_ERROR)

project(XMLPImageDataWriter)

find_package(VTK COMPONENTS 
  vtkCommonColor
  vtkCommonCore
  vtkIOParallelXML
  vtkImagingSources
  QUIET
)

if (NOT VTK_FOUND)
  message("Skipping XMLPImageDataWriter: ${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(XMLPImageDataWriter MACOSX_BUNDLE XMLPImageDataWriter.cxx )
  target_link_libraries(XMLPImageDataWriter PRIVATE ${VTK_LIBRARIES})
else ()
  # include all components
  add_executable(XMLPImageDataWriter MACOSX_BUNDLE XMLPImageDataWriter.cxx )
  target_link_libraries(XMLPImageDataWriter PRIVATE ${VTK_LIBRARIES})
  # vtk_module_autoinit is needed
  vtk_module_autoinit(
    TARGETS XMLPImageDataWriter
    MODULES ${VTK_LIBRARIES}
    )
endif ()

Download and Build XMLPImageDataWriter

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

cd XMLPImageDataWriter/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:

./XMLPImageDataWriter

WINDOWS USERS

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