PerpendicularVector

VTKExamples/Cxx/Math/PerpendicularVector

Code

PerpendicularVector.cxx

#include <vtkSmartPointer.h>
#include <vtkMath.h>

int main(int, char *[])
{
  double x[3] = {1,0,0};
  double y[3];
  vtkMath::Perpendiculars(x, y, NULL, 0);

  std::cout << "y: " << y[0] << " " << y[1] << " " << y[2] << std::endl;

  return EXIT_SUCCESS;
}

CMakeLists.txt

cmake_minimum_required(VERSION 3.3 FATAL_ERROR)

project(PerpendicularVector)

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

Download and Build PerpendicularVector

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

cd PerpendicularVector/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:

./PerpendicularVector

WINDOWS USERS

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