# vtkTestProgressReportFilter

VTKExamples/Cxx/Developers/vtkTestProgressReportFilter

### Code

vtkTestProgressReportFilter.cxx

    #include "vtkTestProgressReportFilter.h"

    #include "vtkObjectFactory.h"
    #include "vtkStreamingDemandDrivenPipeline.h"
    #include "vtkInformationVector.h"
    #include "vtkInformation.h"
    #include "vtkDataObject.h"
    #include "vtkSmartPointer.h"

    vtkStandardNewMacro(vtkTestProgressReportFilter);

    int vtkTestProgressReportFilter::RequestData(
      vtkInformation *vtkNotUsed(request),
      vtkInformationVector **inputVector,
      vtkInformationVector *outputVector)
    {

      // Get the info objects
      vtkInformation *inInfo = inputVector[0]->GetInformationObject(0);
      vtkInformation *outInfo = outputVector->GetInformationObject(0);

      // Get the input and ouptut
      vtkPolyData *input = vtkPolyData::SafeDownCast(
        inInfo->Get(vtkDataObject::DATA_OBJECT()));

      vtkPolyData *output = vtkPolyData::SafeDownCast(
        outInfo->Get(vtkDataObject::DATA_OBJECT()));

      for(vtkIdType i = 0; i < input->GetNumberOfPoints(); i++)
      {
        this->UpdateProgress(static_cast<double>(i)/input->GetNumberOfPoints());
      }

      output->ShallowCopy(input);

      return 1;
    }

### CMakeLists.txt

    cmake_minimum_required(VERSION 2.8)

    PROJECT(vtkTestProgressReportFilter)

    find_package(VTK REQUIRED)
    include(${VTK_USE_FILE})

    add_executable(vtkTestProgressReportFilter MACOSX_BUNDLE vtkTestProgressReportFilter.cxx)

    target_link_libraries(vtkTestProgressReportFilter ${VTK_LIBRARIES})

### Download and Build vtkTestProgressReportFilter

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

    cd vtkTestProgressReportFilter/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:

    ./vtkTestProgressReportFilter

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.