- use an existing installation : Either define the environment variable CFITSIO_EXT_PREFIX where to find the cfitsio library and include file (eg /usr/local, so that /usr/local/include/fitsio.h and /usr/local/lib/libcfitsio.a exists), or define CFITSIO_EXT_INC (with the cfitsio include directory) and CFITSIO_EXT_LIB (with the cfitsio library file name) Please do not define all three of these environment variables simultaneously.
- compile a specific cfitsio lib: Define EXTERNAL_CFITSIO=no, place the cfitsioXXXX.tar.gz in hpbeta/libcfitsio before installing. The cfitsio version XXXX must match the version in hpbeta/planck.make (or you need to modify it there).
pshyt cython wrapper. a pregenerated c code is included in the repository, but if you have cython installed it will be run in the build phase.
$ cd healpy $ python setup.py build
OR, if you do not want OpenMP support (sometimes, it causes SegFault)
$ python setup.py build –without-openmp (alternatively, you can define the environment variable HEALPY_WITHOUT_OPENMP)
If you do not want the “-march=native” flag (if your g++ is too old)
$ python setup.py build –without-native (alternatively, you can define the environment variable HEALPY_WITHOUT_NATIVE)
If everything goes fine, you can give a test: $ cd build/lib* $ ipython -pylab >>> import healpy as H >>> H.mollview(arange(12)) >>> pylab.show()
If the plot looks good, you can install: $ sudo python setup.py install # install in default location, need root rights or $ python setup.py install –install-lib=~/Softs/Python # will install healpy in directory ~/Softs/Python, which then must be in your PYTHONPATH or $ python setup.py install –user # will install it in your User python directory (python >= 2.6)
Suggested compilation on OSX Lion is installing pyfits, cython and cfitsio using mac ports and run: >>> python setup.py –without-openmp
the best way to install healpy if you plan to develop is to build the C++ extensions in place with:
python setup.py build_ext –inplace
the add the healpy/healpy folder to your PYTHONPATH