pySLALIB v1.0.2 (Dec 2010) --------------- This is archive contains new f2py-generated (and hand-tweaked to eliminate unnecessary function/subroutine arguments) wrappers for the Fortran version of P.T. Wallace's SLALIB positional astronomy library. SLALIB used to be hosted by the STARLINK site, although that service has been suspended. The version of SLALIB included here is 2.5-4 (with several additional tweaks) and is released under the GPL. The python wrappers cover every function in SLALIB and a comprehensive set of unit tests are available in the test/ directory. The only external dependency is numpy (http://numpy.scipy.org). These wrappers are not related to the older (and apparently abandoned) pySLALIB that was once available on the Web (and which depended on Numeric as opposed to numpy). Installation ------------ Most users will only need to do: > python setup.py install to generate the wrappers, build, and install the library. Once slalib.so has been installed in your PYTHONPATH, you can run the unittests via: > python test/test_slalib.py Example Usage (using IPython) ------------- In [1]: from pyslalib import slalib In [2]: slalib.sla_veri() Out[2]: 2005004 In [3]: slalib.sla_caldj(1999, 12, 31) Out[3]: (51543.0, 0) In [4]: slalib.sla_etrms(1976.9) Out[4]: array([ -1.62161710e-06, -3.31007009e-07, -1.43529663e-07]) In [5]: slalib.sla_fk45z(1.234, -0.123, 1984) Out[5]: (1.2446165107316911, -0.12141858395865548) In [6]: slalib.sla_dafin("-00 03 34.6", 1) Out[6]: (12, -0.0010404101596610642, 0) In [7]: slalib.sla_obs(0, "GBT") Out[7]: ('GBT', 'Green Bank Telescope ', 1.3934679949996727, 0.67078450520692623, 880.0) If you import "sladoc" you can print the original Fortran doc strings using something like: In [1]: from pyslalib import slalib, sladoc In [2]: print sladoc['sla_caldj'] """ * - - - - - - * C A L D J * - - - - - - * * Gregorian Calendar to Modified Julian Date * * (Includes century default feature: use sla_CLDJ for years * before 100AD.) * * Given: * IY,IM,ID int year, month, day in Gregorian calendar * ... Thanks go to Prasanth for adding the docstring capabilities! If you would like to build a shared library for linking with other programs, a simple Makefile is also included that should work with only minor tweaks for most Unix-like OSs. Please let me know if you find any problems. Scott ---------------------------------- Scott M. Ransom <sransom@nrao.edu> http://www.cv.nrao.edu/~sransom