pymesh2 0.1.14

Mesh Processing for Python

[](https://circleci.com/gh/qnzhou/PyMesh/tree/master)

### About PyMesh ###

PyMesh is a code base developed by Qingnan Zhou for his PhD research at New York University. It is a rapid prototyping platform focused on geometry processing. PyMesh is written using both C++ and python, where computational intensive functionalities are realized in C++, and Python is used for create minimalistic and easy to use interfaces.

### Documentation ###

[Latest documentation](http://pymesh.readthedocs.org/en/latest/)

### Download Source ###

To retrieve the code:

git clone https://github.com/qnzhou/PyMesh.git git submodule update –init

Be sure to save the root directory of PyMesh in the environment variable PYMESH_PATH:

export PYMESH_PATH=/path/to/PyMesh/

Unit tests relies on this environment variable to load relevant libraries.

### Dependencies ###

PyMesh depends on the following tools/libraries:

• [Python](https://www.python.org/) v3.x.

• [NumPy](http://www.numpy.org/) v1.8 or higher

• [SciPy](http://www.scipy.org/) v0.13 or higher

• [SWIG](http://www.swig.org/) v3.0.5 or higher

• [Eigen](http://eigen.tuxfamily.org/index.php?title=Main_Page) v3.2 or higher

Optional library:

• [SparseHash](https://code.google.com/p/sparsehash/)

• [CGAL](https://www.cgal.org/)

• [tetgen](http://wias-berlin.de/software/tetgen/) *

• [libigl](http://igl.ethz.ch/projects/libigl/) *

• [cork](https://github.com/gilbo/cork) *

• [triangle](http://www.cs.cmu.edu/~quake/triangle.html) *

• [qhull](http://www.qhull.org/) *

• [Clipper](http://www.angusj.com/delphi/clipper.php) *

• [Carve](https://github.com/qnzhou/carve) *

• [GeoGram](http://alice.loria.fr/software/geogram/doc/html/index.html)

• [Quartet](https://github.com/crawforddoran/quartet) *

Libraries marked with * are included in $PYMESH_PATH/third_party directory.

### Environment Variables ###

If any of the dependent library is not installed in standard locations (/usr/local/, /opt/local), one needs to set environment variables that point to the correct directories. PyMesh check the following environment variables:

• EIGEN_INC: directory containing the Eigen library.

• GOOGLEHASH_INCLUDES: directory containing sparse hash.

• CGAL_PATH: path to CGAL library

• BOOST_INC: directory containing boost.

• LIBIGL_PATH: path to libigl.

• CORK_PATH: path to cork.

• TETGEN_PATH: path to tetgen

• TRIANGLE_PATH: path to triangle

• QHULL_PATH: path to qhull

• CLIPPER_PATH: path to clipper

• CARVE_PATH: path to carve

• GEOGRAM_PATH: path to GeoGram

• QUARTET_PATH: path to quartet

### Build ###

The first step is to compile the optional third party dependencies:

cd $PYMESH_PATH/third_party mkdir build cd build cmake .. make make install

Third party dependencies will be installed in $PYMESH_PATH/python/pymesh/third_party directory.

Now we can build the main project. It is recommended to build out of source:

cd $PYMESH_PATH mkdir build cd build cmake ..

To only build the C++ libraries without the swig python modules, change the last command to

cmake -DWITHOUT_SWIG=ON ..

To build the main PyMesh library:

make make src_tests

To build all available tools:

make tools make tools_tests

Make sure all unit tests are passed before using the library.

### Install ###

The output of building PyMesh consists a set of C++ libraries and a python module. Installing the C++ library is currently not available. However, installing the python package can be done:

./setup.py build # This an alternative way of calling cmake/make ./setup.py install

To check PyMesh is installed correctly, run the following python unit tests:

python -c "import pymesh; pymesh.test()"

Once again, make sure all unit tests are passed, and report any unit test failures.