Requirements

At the moment we support only the operating systems Linux and MacOS and the compilers GCC and Clang.

The following programs and libraries are required to use OpenANN:

Compilation	Documentation	Examples	Python bindings	Benchmarks
CMake pkg-config Eigen 3 shell wget unzip make	doxygen Graphviz	OpenGL GLUT libxmu Qt4	Python (header files) NumPy Cython	Python Matplotlib SciPy

Installation

Go to the OpenANN directory and execute

mkdir build
cd build
cmake -D CMAKE_BUILD_TYPE=Release ..
sudo make install
sudo ldconfig

The OpenANN build is influenced by some options. These can be set with cmake:

cmake -D <option>=<value> ..

You will see an example in the previous section.

Option	Description	Default
CMAKE_BUILD_TYPE	Build configuration. Available options are: Debug, Release.	Release
LOG_LEVEL	Log level of the internal logging. Available options are: DISABLED, ERROR, INFO, DEBUG	INFO
PARALLEL_CORES	Number of CPU cores that OpenANN can use.	4
ALWAYS_BUILD_DOCUMENTATION	Add documentation target to default target (i.e. "make all").	OFF
BUILD_PYTHON	(De)activate building Python bindings for OpenANN.	ON
EXCLUDE_TESTS_FROM_ALL	You can build all examples, benchmarks and the test suite with the standard build target when you deactivate this. This might be useful for developers.	ON