VTK/Examples/Cxx/IO/ReadPLOT3D

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VTK Examples Baseline IO TestReadPLOT3D.png

ReadPLOT3D.cxx

#include <vtkVersion.h>
#include <vtkPolyData.h>
#if VTK_MAJOR_VERSION <= 5
#include <vtkPLOT3DReader.h>
#else
#include <vtkMultiBlockPLOT3DReader.h>
#include <vtkMultiBlockDataSet.h>
#endif
#include <vtkSmartPointer.h>
#include <vtkPolyDataMapper.h>
#include <vtkActor.h>
#include <vtkRenderWindow.h>
#include <vtkRenderer.h>
#include <vtkRenderWindowInteractor.h>
#include <vtkStructuredGridGeometryFilter.h>
 
int main ( int argc, char *argv[] )
{
  if(argc < 3)
    {
    std::cout << "Required parameters: XYZFilename.bin QFileName.bin" << std::endl;
    return EXIT_FAILURE;
    }
 
  std::string xyzFilename = argv[1];
  std::string qFilename = argv[2];
 
#if VTK_MAJOR_VERSION <= 5
  vtkSmartPointer<vtkPLOT3DReader> reader =
    vtkSmartPointer<vtkPLOT3DReader>::New();
#else
  vtkSmartPointer<vtkMultiBlockPLOT3DReader> reader =
    vtkSmartPointer<vtkMultiBlockPLOT3DReader>::New();
#endif
  reader->SetXYZFileName(xyzFilename.c_str());
  reader->SetQFileName(qFilename.c_str());
  reader->SetScalarFunctionNumber(100);
  reader->SetVectorFunctionNumber(202);
  reader->Update();
 
  vtkSmartPointer<vtkStructuredGridGeometryFilter> geometryFilter =
    vtkSmartPointer<vtkStructuredGridGeometryFilter>::New();
#if VTK_MAJOR_VERSION <= 5
  geometryFilter->SetInputConnection(reader->GetOutputPort());
#else
  geometryFilter->SetInputData(reader->GetOutput()->GetBlock(0));
#endif
  geometryFilter->Update();
 
  // Visualize
  vtkSmartPointer<vtkPolyDataMapper> mapper =
    vtkSmartPointer<vtkPolyDataMapper>::New();
  mapper->SetInputConnection(geometryFilter->GetOutputPort());
  mapper->ScalarVisibilityOff();
 
  vtkSmartPointer<vtkActor> actor =
    vtkSmartPointer<vtkActor>::New();
  actor->SetMapper(mapper);
 
  vtkSmartPointer<vtkRenderer> renderer =
    vtkSmartPointer<vtkRenderer>::New();
  vtkSmartPointer<vtkRenderWindow> renderWindow =
    vtkSmartPointer<vtkRenderWindow>::New();
  renderWindow->AddRenderer(renderer);
  vtkSmartPointer<vtkRenderWindowInteractor> renderWindowInteractor =
    vtkSmartPointer<vtkRenderWindowInteractor>::New();
  renderWindowInteractor->SetRenderWindow(renderWindow);
 
  renderer->AddActor(actor);
  renderer->SetBackground(.3, .6, .3); // Background color green
 
  renderWindow->Render();
  renderWindowInteractor->Start();
 
  return EXIT_SUCCESS;
}

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CMakeLists.txt

cmake_minimum_required(VERSION 2.8)
 
PROJECT(ReadPLOT3D)
 
find_package(VTK REQUIRED)
include(${VTK_USE_FILE})
 
add_executable(ReadPLOT3D MACOSX_BUNDLE ReadPLOT3D.cxx)
 
if(VTK_LIBRARIES)
  target_link_libraries(ReadPLOT3D ${VTK_LIBRARIES})
else()
  target_link_libraries(ReadPLOT3D vtkHybrid vtkWidgets)
endif()

Download and Build ReadPLOT3D

Click here to download ReadPLOT3D. and its CMakeLists.txt file.

Once the tarball ReadPLOT3D.tar has been downloaded and extracted,

cd ReadPLOT3D/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:

./ReadPLOT3D

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.