DOUBLE PRECISION FUNCTION sla_DRANRM (ANGLE) *+ * - - - - - - - * D R A N R M * - - - - - - - * * Normalize angle into range 0-2 pi (double precision) * * Given: * ANGLE dp the angle in radians * * The result is ANGLE expressed in the range 0-2 pi. * * Last revision: 22 July 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 DOUBLE PRECISION ANGLE DOUBLE PRECISION D2PI PARAMETER (D2PI=6.283185307179586476925286766559D0) sla_DRANRM = MOD(ANGLE,D2PI) IF (sla_DRANRM.LT.0D0) sla_DRANRM = sla_DRANRM+D2PI END