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Diffstat (limited to 'ast/pal/palSupgal.c')
-rw-r--r-- | ast/pal/palSupgal.c | 116 |
1 files changed, 0 insertions, 116 deletions
diff --git a/ast/pal/palSupgal.c b/ast/pal/palSupgal.c deleted file mode 100644 index a8a9a03..0000000 --- a/ast/pal/palSupgal.c +++ /dev/null @@ -1,116 +0,0 @@ -/* -*+ -* Name: -* palSupgal - -* Purpose: -* Convert from supergalactic to galactic coordinates - -* Language: -* Starlink ANSI C - -* Type of Module: -* Library routine - -* Invocation: -* void palSupgal ( double dsl, double dsb, double *dl, double *db ); - -* Arguments: -* dsl = double (Given) -* Supergalactic longitude. -* dsb = double (Given) -* Supergalactic latitude. -* dl = double * (Returned) -* Galactic longitude. -* db = double * (Returned) -* Galactic latitude. - -* Description: -* Transformation from de Vaucouleurs supergalactic coordinates -* to IAU 1958 galactic coordinates - -* Authors: -* PTW: Pat Wallace (STFC) -* TIMJ: Tim Jenness (JAC, Hawaii) -* {enter_new_authors_here} - -* See Also: -* - de Vaucouleurs, de Vaucouleurs, & Corwin, Second Reference -* Catalogue of Bright Galaxies, U. Texas, page 8. -* - Systems & Applied Sciences Corp., Documentation for the -* machine-readable version of the above catalogue, -* Contract NAS 5-26490. -* -* (These two references give different values for the galactic -* longitude of the supergalactic origin. Both are wrong; the -* correct value is L2=137.37.) - -* History: -* 2012-02-12(TIMJ): -* Initial version with documentation taken from Fortran SLA -* Adapted with permission from the Fortran SLALIB library. -* {enter_further_changes_here} - -* Copyright: -* Copyright (C) 1995 Rutherford Appleton Laboratory -* Copyright (C) 2012 Science and Technology Facilities Council. -* All Rights Reserved. - -* Licence: -* This program is free software: you can redistribute it and/or -* modify it under the terms of the GNU Lesser General Public -* License as published by the Free Software Foundation, either -* version 3 of the License, or (at your option) any later -* version. -* -* This program is distributed in the hope that it will be useful, -* but WITHOUT ANY WARRANTY; without even the implied warranty of -* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -* GNU Lesser General Public License for more details. -* -* You should have received a copy of the GNU Lesser General -* License along with this program. If not, see -* <http://www.gnu.org/licenses/>. - -* Bugs: -* {note_any_bugs_here} -*- -*/ - -#include "pal.h" -#include "pal1sofa.h" - -void palSupgal ( double dsl, double dsb, double *dl, double *db ) { - - double v1[3]; - double v2[3]; - -/* -* System of supergalactic coordinates: -* -* SGL SGB L2 B2 (deg) -* - +90 47.37 +6.32 -* 0 0 - 0 -* -* Galactic to supergalactic rotation matrix: -*/ - double rmat[3][3] = { - { -0.735742574804,+0.677261296414,+0.000000000000 }, - { -0.074553778365,-0.080991471307,+0.993922590400 }, - { +0.673145302109,+0.731271165817,+0.110081262225 } - }; - - /* Spherical to Cartesian */ - eraS2c( dsl, dsb, v1 ); - - /* Supergalactic to galactic */ - eraTrxp( rmat, v1, v2 ); - - /* Cartesian to spherical */ - eraC2s( v2, dl, db ); - - /* Express in conventional ranges */ - *dl = eraAnp( *dl ); - *db = eraAnpm( *db ); - -} |