# ScalarVisibility

VTKExamples/Cxx/Visualization/ScalarVisibility

### Code

ScalarVisibility.cxx

    #include "vtkActor.h"
    #include "vtkPolyDataMapper.h"
    #include "vtkPointSource.h"
    #include "vtkProperty.h"
    #include "vtkPolyData.h"
    #include "vtkRenderWindow.h"
    #include "vtkRenderWindowInteractor.h"
    #include "vtkRenderer.h"
    #include "vtkSmartPointer.h"

    int main(int, char *[])
    {
      vtkSmartPointer<vtkPointSource> pointSource = vtkSmartPointer<vtkPointSource>::New();
      vtkSmartPointer<vtkPolyDataMapper> mapper = vtkSmartPointer<vtkPolyDataMapper>::New();
      mapper->SetInputConnection(pointSource->GetOutputPort());
      mapper->ScalarVisibilityOff();

      vtkSmartPointer<vtkActor> actor = vtkSmartPointer<vtkActor>::New();
      actor->SetMapper( mapper );
      unsigned char red[3] = {255, 0, 0};
      actor->GetProperty()->SetColor(red[0], red[1], red[2]);
      vtkSmartPointer<vtkRenderer> renderer = vtkSmartPointer<vtkRenderer>::New();
      renderer->AddActor(actor);

      vtkSmartPointer<vtkRenderWindow> renderWindow = vtkSmartPointer<vtkRenderWindow>::New();
      renderWindow->AddRenderer( renderer );
      vtkSmartPointer<vtkRenderWindowInteractor> interactor = vtkSmartPointer<vtkRenderWindowInteractor>::New();
      interactor->SetRenderWindow( renderWindow );

      renderWindow->Render();

      interactor->Start();

      return EXIT_SUCCESS;
    }

### CMakeLists.txt

    cmake_minimum_required(VERSION 2.8)

    PROJECT(ScalarVisibility)

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

    add_executable(ScalarVisibility MACOSX_BUNDLE ScalarVisibility.cxx)

    target_link_libraries(ScalarVisibility ${VTK_LIBRARIES})

### Download and Build ScalarVisibility

Danger

The generation of tar files has not been ported to the new VTKExamples. Some tarballs may be missing or out-of-date.

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

    cd ScalarVisibility/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:

    ./ScalarVisibility

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.