#ifndef SOFAMHDEF #define SOFAMHDEF /* ** - - - - - - - - ** s o f a m . h ** - - - - - - - - ** ** Macros used by SOFA library. ** ** This file is part of the International Astronomical Union's ** SOFA (Standards Of Fundamental Astronomy) software collection. ** ** This revision: 2009 January 29 ** ** Copyright (C) 2008 IAU SOFA Review Board. See notes at end. */ #include "sofa.h" /* Seconds of time per radian */ #define DS2R (7.272205216643039903848712e-5) /* Pi */ #define DPI (3.141592653589793238462643) /* 2Pi */ #define D2PI (6.283185307179586476925287) /* Degrees to radians */ #define DD2R (1.745329251994329576923691e-2) /* Radians to arcseconds */ #define DR2AS (206264.8062470963551564734) /* Arcseconds to radians */ #define DAS2R (4.848136811095359935899141e-6) /* Arcseconds in a full circle */ #define TURNAS (1296000.0) /* Milliarcseconds to radians */ #define DMAS2R (DAS2R / 1e3) /* Length of tropical year B1900 (days) */ #define DTY (365.242198781) /* Reference epoch (J2000), Julian Date */ #define DJ00 (2451545.0) /* Julian Date of Modified Julian Date zero */ #define DJM0 (2400000.5) /* Reference epoch (J2000), Modified Julian Date */ #define DJM00 (51544.5) /* Seconds per day. */ #define DAYSEC (86400.0) /* Days per Julian year */ #define DJY (365.25) /* Days per Julian century */ #define DJC (36525.0) /* Days per Julian millennium */ #define DJM (365250.0) /* AU (m) */ #define DAU (149597870e3) /* Speed of light (AU per day) */ #define DC (DAYSEC / 499.004782) /* dint(A) - truncate to nearest whole number towards zero (double) */ #define dint(A) ((A)<0.0?ceil(A):floor(A)) /* dnint(A) - round to nearest whole number (double) */ #define dnint(A) ((A)<0.0?ceil((A)-0.5):floor((A)+0.5)) /* dsign(A,B) - magnitude of A with sign of B (double) */ #define dsign(A,B) ((B)<0.0?-(A):(A)) #endif /*----------------------------------------------------------------------- ** ** Copyright (C) 2008 ** Standards Of Fundamental Astronomy Review Board ** of the International Astronomical Union. ** ** ===================== ** SOFA Software License ** ===================== ** ** NOTICE TO USER: ** ** BY USING THIS SOFTWARE YOU ACCEPT THE FOLLOWING TERMS AND CONDITIONS ** WHICH APPLY TO ITS USE. ** ** 1. The Software is owned by the IAU SOFA Review Board ("the Board"). ** ** 2. Permission is granted to anyone to use the SOFA software for any ** purpose, including commercial applications, free of charge and ** without payment of royalties, subject to the conditions and ** restrictions listed below. ** ** 3. You (the user) may copy and adapt the SOFA software and its ** algorithms for your own purposes and you may copy and distribute ** a resulting "derived work" to others on a world-wide, royalty-free ** basis, provided that the derived work complies with the following ** requirements: ** ** a) Your work shall be marked or carry a statement that it (i) uses ** routines and computations derived by you from software provided ** by SOFA under license to you; and (ii) does not contain ** software provided by SOFA or software that has been distributed ** by or endorsed by SOFA. ** ** b) The source code of your derived work must contain descriptions ** of how the derived work is based upon and/or differs from the ** original SOFA software. ** ** c) The name(s) of all routine(s) that you distribute shall differ ** from the SOFA names, even when the SOFA content has not been ** otherwise changed. ** ** d) The routine-naming prefix "iau" shall not be used. ** ** e) The origin of the SOFA components of your derived work must not ** be misrepresented; you must not claim that you wrote the ** original software, nor file a patent application for SOFA ** software or algorithms embedded in the SOFA software. ** ** f) These requirements must be reproduced intact in any source ** distribution and shall apply to anyone to whom you have granted ** a further right to modify the source code of your derived work. ** ** 4. In any published work or commercial products which includes ** results achieved by using the SOFA software, you shall acknowledge ** that the SOFA software was used in obtaining those results. ** ** 5. You shall not cause the SOFA software to be brought into ** disrepute, either by misuse, or use for inappropriate tasks, or by ** inappropriate modification. ** ** 6. The SOFA software is provided "as is" and the Board makes no ** warranty as to its use or performance. The Board does not and ** cannot warrant the performance or results which the user may obtain ** by using the SOFA software. The Board makes no warranties, express ** or implied, as to non-infringement of third party rights, ** merchantability, or fitness for any particular purpose. In no ** event will the Board be liable to the user for any consequential, ** incidental, or special damages, including any lost profits or lost ** savings, even if a Board representative has been advised of such ** damages, or for any claim by any third party. ** ** 7. The provision of any version of the SOFA software under the terms ** and conditions specified herein does not imply that future ** versions will also be made available under the same terms and ** conditions. ** ** Correspondence concerning SOFA software should be addressed as ** follows: ** ** Internet email: sofa@rl.ac.uk ** Postal address: IAU SOFA Center ** Rutherford Appleton Laboratory ** Chilton, Didcot, Oxon OX11 0QX ** United Kingdom ** **---------------------------------------------------------------------*/