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PerpendicularVector

vtk-examples/Cxx/Math/PerpendicularVector

Question

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Code

PerpendicularVector.cxx

#include <vtkMath.h>

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

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

  return EXIT_SUCCESS;
}

CMakeLists.txt

cmake_minimum_required(VERSION 3.12 FATAL_ERROR)

project(PerpendicularVector)

find_package(VTK COMPONENTS 
  CommonCore
  QUIET
)

if (NOT VTK_FOUND)
  message(FATAL_ERROR "PerpendicularVector: Unable to find the VTK build folder.")
endif()

# Prevent a "command line is too long" failure in Windows.
set(CMAKE_NINJA_FORCE_RESPONSE_FILE "ON" CACHE BOOL "Force Ninja to use response files.")
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}
)

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.