MultiBlockMergeFilter

vtk-examples/Cxx/PolyData/MultiBlockMergeFilter

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Question

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Code¶

MultiBlockMergeFilter.cxx

#include <vtkMultiBlockDataSet.h>
#include <vtkMultiBlockMergeFilter.h>
#include <vtkNew.h>
#include <vtkSphereSource.h>

int main(int, char*[])
{

  vtkNew<vtkSphereSource> sphereSource1;
  sphereSource1->Update();

  vtkNew<vtkSphereSource> sphereSource2;
  sphereSource2->SetCenter(10, 10, 10);
  sphereSource2->Update();

  vtkNew<vtkMultiBlockDataSet> multiBlockDataSet1;
  multiBlockDataSet1->SetNumberOfBlocks(1);
  multiBlockDataSet1->SetBlock(0, sphereSource1->GetOutput());

  vtkNew<vtkMultiBlockDataSet> multiBlockDataSet2;
  multiBlockDataSet2->SetNumberOfBlocks(1);
  multiBlockDataSet2->SetBlock(0, sphereSource2->GetOutput());

  vtkNew<vtkMultiBlockMergeFilter> multiBlockMergeFilter;
  multiBlockMergeFilter->AddInputData(multiBlockDataSet1);
  multiBlockMergeFilter->AddInputData(multiBlockDataSet2);
  multiBlockMergeFilter->Update();

  return EXIT_SUCCESS;
}

CMakeLists.txt¶

cmake_minimum_required(VERSION 3.12 FATAL_ERROR)

project(MultiBlockMergeFilter)

find_package(VTK COMPONENTS 
  CommonCore
  CommonDataModel
  FiltersGeneral
  FiltersSources
)

if (NOT VTK_FOUND)
  message(FATAL_ERROR "MultiBlockMergeFilter: Unable to find the VTK build folder.")
endif()

# Prevent a "command line is too long" failure in Windows.
set(CMAKE_NINJA_FORCE_RESPONSE_FILE "ON" CACHE BOOL "Force Ninja to use response files.")
add_executable(MultiBlockMergeFilter MACOSX_BUNDLE MultiBlockMergeFilter.cxx )
  target_link_libraries(MultiBlockMergeFilter PRIVATE ${VTK_LIBRARIES}
)
# vtk_module_autoinit is needed
vtk_module_autoinit(
  TARGETS MultiBlockMergeFilter
  MODULES ${VTK_LIBRARIES}
)

Download and Build MultiBlockMergeFilter¶

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

cd MultiBlockMergeFilter/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:

./MultiBlockMergeFilter

WINDOWS USERS

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