VTK/Examples/Cxx/Utilities/Box

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Box.cxx

#include <vtkSmartPointer.h>
#include <vtkBox.h>
 
int main(int, char *[])
{
  // Define a box
  double bounds[6] = {-1,1,-1,1,-1,1};
 
  // Define a ray
  double rayOrigin[3] = {-5.0, 0, 0};
  double rayDirection[3] = {1.0, 0, 0};
 
  double intersection[3];
  double t;
 
  char hit = vtkBox::IntersectBox(bounds, rayOrigin, rayDirection, intersection, t);
 
  if(!hit)
    {
    std::cout << "Not hit!" << std::endl;
    }
  else
    {
    // Intersection should be (-1.0, 0, 0)
    std::cout << "Intersection is " << intersection[0] << " " << intersection[1] << " " << intersection[2] << std::endl;
    std::cout << "t is " << t << std::endl;
    }
 
  return EXIT_SUCCESS;
}

CMakeLists.txt

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

Download and Build Box

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

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

cd Box/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:

./Box

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.