Mesh Processing for Python
### 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 ###
### 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:
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
- [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) *
- [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.
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