# BoundingBox

VTKExamples/Cxx/Utilities/BoundingBox

Seealso

Outline and CubeAxesActor2D

### Code

BoundingBox.cxx

    #include <vtkBoundingBox.h>

    int main(int, char *[])
    {
      double p0[3] = {0,0,0};
      double p1[3] = {0.5,0.5,0.5};
      double p2[3] = {1.0,1.0,1.0};

      vtkBoundingBox boundingBox;

      boundingBox.AddPoint(p0);

      double bounds[6];

      boundingBox.GetBounds(bounds);
      std::cout << "Bounds: " << bounds[0] << ", " << bounds[1] << ", " << bounds[2] << ", "
                << bounds[3] << ", " << bounds[4] << ", " << bounds[5] << std::endl;

      // After adding this point, the box gets bigger
      boundingBox.AddPoint(p2);

      boundingBox.GetBounds(bounds);
      std::cout << "Bounds: " << bounds[0] << ", " << bounds[1] << ", " << bounds[2] << ", "
                << bounds[3] << ", " << bounds[4] << ", " << bounds[5] << std::endl;

      // After adding this point, the box size does not change as the point is already inside the box
      boundingBox.AddPoint(p1);

      boundingBox.GetBounds(bounds);
      std::cout << "Bounds: " << bounds[0] << ", " << bounds[1] << ", " << bounds[2] << ", "
                << bounds[3] << ", " << bounds[4] << ", " << bounds[5] << std::endl;

      return EXIT_SUCCESS;
    }

### CMakeLists.txt

    cmake_minimum_required(VERSION 2.8)

    PROJECT(BoundingBox)

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

    add_executable(BoundingBox MACOSX_BUNDLE BoundingBox.cxx)

    target_link_libraries(BoundingBox ${VTK_LIBRARIES})

### Download and Build BoundingBox

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 Some tarballs may be missing or out-of-date.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 BoundingBox and its CMakeLists.txt file. Once the tarball BoundingBox.tar has been downloaded and extracted,

    cd BoundingBox/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:

    ./BoundingBox

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.