MultiBlockMergeFilter

VTKExamples/Cxx/PolyData/MultiBlockMergeFilter

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See (CSharp)

Question

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Code

MultiBlockMergeFilter.cxx

#include <vtkSmartPointer.h>
#include <vtkPoints.h>
#include <vtkPolyData.h>
#include <vtkSphereSource.h>
#include <vtkMultiBlockMergeFilter.h>
#include <vtkMultiBlockDataSet.h>

int main(int, char *[])
{

  vtkSmartPointer<vtkSphereSource> sphereSource1 =
    vtkSmartPointer<vtkSphereSource>::New();
  sphereSource1->Update();

  vtkSmartPointer<vtkSphereSource> sphereSource2 =
    vtkSmartPointer<vtkSphereSource>::New();
  sphereSource2->SetCenter(10,10,10);
  sphereSource2->Update();

  vtkSmartPointer<vtkMultiBlockDataSet> multiBlockDataSet1 =
    vtkSmartPointer<vtkMultiBlockDataSet>::New();
  multiBlockDataSet1->SetNumberOfBlocks(1);
  multiBlockDataSet1->SetBlock(0, sphereSource1->GetOutput());

  vtkSmartPointer<vtkMultiBlockDataSet> multiBlockDataSet2 =
    vtkSmartPointer<vtkMultiBlockDataSet>::New();
  multiBlockDataSet2->SetNumberOfBlocks(1);
  multiBlockDataSet2->SetBlock(0, sphereSource2->GetOutput());

  vtkSmartPointer<vtkMultiBlockMergeFilter> multiBlockMergeFilter =
      vtkSmartPointer<vtkMultiBlockMergeFilter>::New();
  multiBlockMergeFilter->AddInputData(multiBlockDataSet1);
  multiBlockMergeFilter->AddInputData(multiBlockDataSet2);
  multiBlockMergeFilter->Update();

  return EXIT_SUCCESS;
}

CMakeLists.txt

cmake_minimum_required(VERSION 3.3 FATAL_ERROR)

project(MultiBlockMergeFilter)

find_package(VTK COMPONENTS 
  vtkCommonCore
  vtkCommonDataModel
  vtkFiltersGeneral
  vtkFiltersSources QUIET)
if (NOT VTK_FOUND)
  message("Skipping MultiBlockMergeFilter: ${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(MultiBlockMergeFilter MACOSX_BUNDLE MultiBlockMergeFilter.cxx )
  target_link_libraries(MultiBlockMergeFilter PRIVATE ${VTK_LIBRARIES})
else ()
  # include all components
  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}
    )
endif () 

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.