1 files changed, 0 insertions, 127 deletions
diff --git a/ast/pal/palDs2tp.c b/ast/pal/palDs2tp.c
deleted file mode 100644
index cbf582a..0000000
--- a/ast/pal/palDs2tp.c
+++ /dev/null
@@ -1,127 +0,0 @@
-/*
-*+
-*  Name:
-*     palDs2tp
-
-*  Purpose:
-*     Spherical to tangent plane projection
-
-*  Language:
-*     Starlink ANSI C
-
-*  Type of Module:
-*     Library routine
-
-*  Invocation:
-*     palDs2tp( double ra, double dec, double raz, double decz,
-*               double *xi, double *eta, int *j );
-
-*  Arguments:
-*     ra = double (Given)
-*        RA spherical coordinate of point to be projected (radians)
-*     dec = double (Given)
-*        Dec spherical coordinate of point to be projected (radians)
-*     raz = double (Given)
-*        RA spherical coordinate of tangent point (radians)
-*     decz = double (Given)
-*        Dec spherical coordinate of tangent point (radians)
-*     xi = double * (Returned)
-*        First rectangular coordinate on tangent plane (radians)
-*     eta = double * (Returned)
-*        Second rectangular coordinate on tangent plane (radians)
-*     j = int * (Returned)
-*        status: 0 = OK, star on tangent plane
-*                1 = error, star too far from axis
-*                2 = error, antistar on tangent plane
-*                3 = error, antistar too far from axis
-
-*  Description:
-*     Projection of spherical coordinates onto tangent plane:
-*     "gnomonic" projection - "standard coordinates"
-
-*  Authors:
-*     PTW: Pat Wallace (STFC)
-*     TIMJ: Tim Jenness (JAC, Hawaii)
-*     {enter_new_authors_here}
-
-*  History:
-*     2012-02-08 (TIMJ):
-*        Initial version with documentation taken from Fortran SLA
-*        Adapted with permission from the Fortran SLALIB library.
-*     {enter_further_changes_here}
-
-*  Copyright:
-*     Copyright (C) 1996 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 <math.h>
-
-void
-palDs2tp ( double ra, double dec, double raz, double decz,
-           double *xi, double *eta, int *j ) {
-
-  const double TINY = 1.0e-6;
-
-  double cdec;
-  double sdec;
-  double radif;
-  double cdecz;
-  double denom;
-  double sdecz;
-  double cradif;
-  double sradif;
-
-  /*  Trig functions */
-  sdecz = sin(decz);
-  sdec = sin(dec);
-  cdecz = cos(decz);
-  cdec = cos(dec);
-  radif = ra - raz;
-  sradif = sin(radif);
-  cradif = cos(radif);
-
-  /*  Reciprocal of star vector length to tangent plane */
-  denom = sdec * sdecz + cdec * cdecz * cradif;
-
-  /*  Handle vectors too far from axis */
-  if (denom > TINY) {
-    *j = 0;
-  } else if (denom >= 0.) {
-    *j = 1;
-    denom = TINY;
-  } else if (denom > -TINY) {
-    *j = 2;
-    denom = -TINY;
-  } else {
-    *j = 3;
-  }
-
-  /*  Compute tangent plane coordinates (even in dubious cases) */
-  *xi = cdec * sradif / denom;
-  *eta = (sdec * cdecz - cdec * sdecz * cradif) / denom;
-
-  return;
-}