# XMLStructuredGridWriter

VTKExamples/Cxx/IO/XMLStructuredGridWriter

Other Languages

See (CSharp)

### Code

XMLStructuredGridWriter.cxx

    #include <vtkCellArray.h>
    #include <vtkPoints.h>
    #include <vtkXMLStructuredGridWriter.h>
    #include <vtkStructuredGrid.h>
    #include <vtkSmartPointer.h>

    int main ( int, char *[] )
    {
       // Create a grid
      vtkSmartPointer<vtkStructuredGrid> structuredGrid =
        vtkSmartPointer<vtkStructuredGrid>::New();

      vtkSmartPointer<vtkPoints> points =
        vtkSmartPointer<vtkPoints>::New();

      points->InsertNextPoint(0, 0, 0);
      points->InsertNextPoint(1, 0, 0);
      points->InsertNextPoint(0, 1, 0);
      points->InsertNextPoint(1, 1, 0);
      points->InsertNextPoint(0, 2, 0);
      points->InsertNextPoint(1, 2, 1);

      // Specify the dimensions of the grid
      structuredGrid->SetDimensions(2,3,1);
      structuredGrid->SetPoints(points);

      // Write file
      vtkSmartPointer<vtkXMLStructuredGridWriter> writer =
        vtkSmartPointer<vtkXMLStructuredGridWriter>::New();
      writer->SetFileName("output.vts");
      writer->SetInputData(structuredGrid);
      writer->Write();

      return EXIT_SUCCESS;
    }

### CMakeLists.txt

    cmake_minimum_required(VERSION 3.3 FATAL_ERROR)

    project(XMLStructuredGridWriter)

    find_package(VTK COMPONENTS
      vtkCommonCore
      vtkCommonDataModel
      vtkIOXML QUIET)
    if (NOT VTK_FOUND)
      message("Skipping XMLStructuredGridWriter: ${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(XMLStructuredGridWriter MACOSX_BUNDLE XMLStructuredGridWriter.cxx )
      target_link_libraries(XMLStructuredGridWriter PRIVATE ${VTK_LIBRARIES})
    else ()
      # include all components
      add_executable(XMLStructuredGridWriter MACOSX_BUNDLE XMLStructuredGridWriter.cxx )
      target_link_libraries(XMLStructuredGridWriter PRIVATE ${VTK_LIBRARIES})
      # vtk_module_autoinit is needed
      vtk_module_autoinit(
        TARGETS XMLStructuredGridWriter
        MODULES ${VTK_LIBRARIES}
        )
    endif ()

### Download and Build XMLStructuredGridWriter

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

    cd XMLStructuredGridWriter/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:

    ./XMLStructuredGridWriter

WINDOWS USERS

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