Mac platform

Install requirements
Install C++ program and Python bindings
Verfication of installation
1. Run command line map matching
2. Run python script

Install requirements

Requirements
- C++ Compiler supporting c++11 and OpenMP
- CMake >=3.5: cross platform building tools
- GDAL >= 2.2: IO with ESRI shapefile, Geometry data type
- Boost Graph >= 1.54.0: routing algorithms used in UBODT Generator
- Boost Geometry >= 1.54.0: Rtree, Geometry computation
- Boost Serialization >= 1.54.0: Serialization of UBODT in binary format
- Libosmium: a library for reading OpenStreetMap data. It requires expat and bz2.
- swig: used for building Python bindings.

  brew install boost gdal libomp expat bzip2

Install C++ program and Python bindings

Build and install the program with cmake
```
  # Under the project folder
  mkdir build
  cd build
  cmake ..
  make -j4
  sudo make install
```
It will build executable files under the build folder, which are installed to /usr/local/bin by default:
- ubodt_gen: the Upper bounded origin destination table (UBODT) generator (precomputation) program
- fmm: the program implementing fast map matching algorithm
- stmatch: the program implementing STMATCH algorithm, no precomputation needed

It will also create a folder python under the build path, which contains fmm bindings (fmm.py and _fmm.so) that are installed into Python site-packages location (e.g., /usr/lib/python2.7/dist-packages).

Verfication of installation

Run command line map matching

Open a new terminal and type fmm, you should see the following output:

------------ Fast map matching (FMM) ------------
------------     Author: Can Yang    ------------
------------   Version: 2020.01.31   ------------
------------     Applicaton: fmm     ------------
A configuration file is given in the example folder
Run `fmm config.xml` or with arguments
fmm argument lists:
--ubodt (required) <string>: Ubodt file name
--network (required) <string>: Network file name
--gps (required) <string>: GPS file name
--output (required) <string>: Output file name
--network_id (optional) <string>: Network id name (id)
--source (optional) <string>: Network source name (source)
--target (optional) <string>: Network target name (target)
--gps_id (optional) <string>: GPS id name (id)
--gps_geom (optional) <string>: GPS geometry name (geom)
--candidates (optional) <int>: number of candidates (8)
--radius (optional) <double>: search radius (300)
--error (optional) <double>: GPS error (50)
--pf (optional) <double>: penalty factor (0)
--log_level (optional) <int>: log level (2)
--output_fields (optional) <string>: Output fields
  opath,cpath,tpath,ogeom,mgeom,pgeom,
  offset,error,spdist,tp,ep,all
For xml configuration, check example folder
------------    Program finished     ------------

Run python script

Run in bash

    # Change to the parent folder which contains fmm_test.py
    cd ../example/python
    python fmm_test.py

If you have any installation error, refer to Q&A.