class Vtk < Formula desc "Toolkit for 3D computer graphics, image processing, and visualization" homepage "https://www.vtk.org/" url "https://www.vtk.org/files/release/8.0/VTK-8.0.1.tar.gz" sha256 "49107352923dea6de05a7b4c3906aaf98ef39c91ad81c383136e768dcf304069" revision 1 head "https://github.com/Kitware/VTK.git" bottle do sha256 "0a0f29977a603317e57d86fc613c7ad3ae4e2d5df4b22d50e9ad0b65736b7c85" => :high_sierra sha256 "babcfed0fbd3eed2e1c3d427d1e0a37ae15a78cd54f93b54d031db6202cd3454" => :sierra sha256 "3d7de16d0b920653591bafc3bd17fa738f6f0727972b77bf5c56878e898d80a4" => :el_capitan end option "without-python", "Build without python2 support" depends_on "cmake" => :build depends_on "boost" depends_on "fontconfig" depends_on "hdf5" depends_on "jpeg" depends_on "libpng" depends_on "libtiff" depends_on "netcdf" depends_on :python => :recommended if MacOS.version <= :snow_leopard depends_on :python3 => :optional depends_on "qt" => :optional depends_on "pyqt" if build.with? "qt" needs :cxx11 def install args = std_cmake_args + %W[ -DBUILD_SHARED_LIBS=ON -DBUILD_TESTING=OFF -DCMAKE_INSTALL_NAME_DIR:STRING=#{lib} -DCMAKE_INSTALL_RPATH:STRING=#{lib} -DModule_vtkInfovisBoost=ON -DModule_vtkInfovisBoostGraphAlgorithms=ON -DModule_vtkRenderingFreeTypeFontConfig=ON -DVTK_REQUIRED_OBJCXX_FLAGS='' -DVTK_USE_COCOA=ON -DVTK_USE_SYSTEM_EXPAT=ON -DVTK_USE_SYSTEM_HDF5=ON -DVTK_USE_SYSTEM_JPEG=ON -DVTK_USE_SYSTEM_LIBXML2=ON -DVTK_USE_SYSTEM_NETCDF=ON -DVTK_USE_SYSTEM_PNG=ON -DVTK_USE_SYSTEM_TIFF=ON -DVTK_USE_SYSTEM_ZLIB=ON -DVTK_WRAP_TCL=ON ] unless MacOS::CLT.installed? # We are facing an Xcode-only installation, and we have to keep # vtk from using its internal Tk headers (that differ from OSX's). args << "-DTK_INCLUDE_PATH:PATH=#{MacOS.sdk_path}/System/Library/Frameworks/Tk.framework/Headers" args << "-DTK_INTERNAL_PATH:PATH=#{MacOS.sdk_path}/System/Library/Frameworks/Tk.framework/Headers/tk-private" end mkdir "build" do if build.with?("python3") && build.with?("python") # VTK Does not support building both python 2 and 3 versions odie "VTK: Does not support building both python 2 and 3 wrappers" elsif build.with?("python") || build.with?("python3") python_executable = `which python`.strip if build.with? "python" python_executable = `which python3`.strip if build.with? "python3" python_prefix = `#{python_executable} -c 'import sys;print(sys.prefix)'`.chomp python_include = `#{python_executable} -c 'from distutils import sysconfig;print(sysconfig.get_python_inc(True))'`.chomp python_version = "python" + `#{python_executable} -c 'import sys;print(sys.version[:3])'`.chomp py_site_packages = "#{lib}/#{python_version}/site-packages" args << "-DVTK_WRAP_PYTHON=ON" args << "-DPYTHON_EXECUTABLE='#{python_executable}'" args << "-DPYTHON_INCLUDE_DIR='#{python_include}'" # CMake picks up the system's python dylib, even if we have a brewed one. if File.exist? "#{python_prefix}/Python" args << "-DPYTHON_LIBRARY='#{python_prefix}/Python'" elsif File.exist? "#{python_prefix}/lib/lib#{python_version}.a" args << "-DPYTHON_LIBRARY='#{python_prefix}/lib/lib#{python_version}.a'" elsif File.exist? "#{python_prefix}/lib/lib#{python_version}.dylib" args << "-DPYTHON_LIBRARY='#{python_prefix}/lib/lib#{python_version}.dylib'" else odie "No libpythonX.Y.{dylib|a} file found!" end # Set the prefix for the python bindings to the Cellar args << "-DVTK_INSTALL_PYTHON_MODULE_DIR='#{py_site_packages}/'" end if build.with? "qt" args << "-DVTK_QT_VERSION:STRING=5" << "-DVTK_Group_Qt=ON" args << "-DVTK_WRAP_PYTHON_SIP=ON" args << "-DSIP_PYQT_DIR='#{Formula["pyqt5"].opt_share}/sip'" end system "cmake", "..", *args system "make" system "make", "install" end end def caveats; <<~EOS Even without the --with-qt option, you can display native VTK render windows from python. Alternatively, you can integrate the RenderWindowInteractor in PyQt5, Tk or Wx at runtime. Read more: import vtk.qt5; help(vtk.qt5) or import vtk.wx; help(vtk.wx) EOS end test do (testpath/"version.cpp").write <<-EOS #include #include int main(int, char *[]) { assert (vtkVersion::GetVTKMajorVersion()==8); assert (vtkVersion::GetVTKMinorVersion()==0); return EXIT_SUCCESS; } EOS system ENV.cxx, "version.cpp", "-I#{opt_include}/vtk-8.0" system "./a.out" system "#{bin}/vtkpython", "-c", "exit()" end end