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SUBROUTINE sla_CR2AF (NDP, ANGLE, SIGN, IDMSF)
*+
* - - - - - -
* C R 2 A F
* - - - - - -
*
* Convert an angle in radians into degrees, arcminutes, arcseconds
* (single precision)
*
* Given:
* NDP int number of decimal places of arcseconds
* ANGLE real angle in radians
*
* Returned:
* SIGN char '+' or '-'
* IDMSF int(4) degrees, arcminutes, arcseconds, fraction
*
* Notes:
*
* 1) NDP less than zero is interpreted as zero.
*
* 2) The largest useful value for NDP is determined by the size of
* ANGLE, the format of REAL floating-point numbers on the target
* machine, and the risk of overflowing IDMSF(4). On some
* architectures, for ANGLE up to 2pi, the available floating-
* point precision corresponds roughly to NDP=3. This is well
* below the ultimate limit of NDP=9 set by the capacity of a
* typical 32-bit IDMSF(4).
*
* 3) The absolute value of ANGLE may exceed 2pi. In cases where it
* does not, it is up to the caller to test for and handle the
* case where ANGLE is very nearly 2pi and rounds up to 360 deg,
* by testing for IDMSF(1)=360 and setting IDMSF(1-4) to zero.
*
* Called: sla_CD2TF
*
* Last revision: 26 December 2004
*
* Copyright P.T.Wallace. All rights reserved.
*
* License:
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program (see SLA_CONDITIONS); if not, write to the
* Free Software Foundation, Inc., 59 Temple Place, Suite 330,
* Boston, MA 02111-1307 USA
*
*-
IMPLICIT NONE
INTEGER NDP
REAL ANGLE
CHARACTER SIGN*(*)
INTEGER IDMSF(4)
* Hours to degrees * radians to turns
REAL F
PARAMETER (F=15.0/6.283185307179586476925287)
* Scale then use days to h,m,s routine
CALL sla_CD2TF(NDP,ANGLE*F,SIGN,IDMSF)
END