/*****************************************************************************
 *  Copyright (c) 2008, University of Florida.
 *  All rights reserved.
 *  
 *  This file is part of OpenJAUS.  OpenJAUS is distributed under the BSD 
 *  license.  See the LICENSE file for details.
 * 
 *  Redistribution and use in source and binary forms, with or without 
 *  modification, are permitted provided that the following conditions 
 *  are met:
 *
 *     * Redistributions of source code must retain the above copyright
 *       notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above
 *       copyright notice, this list of conditions and the following
 *       disclaimer in the documentation and/or other materials provided
 *       with the distribution.
 *     * Neither the name of the University of Florida nor the names of its 
 *       contributors may be used to endorse or promote products derived from 
 *       this software without specific prior written permission.
 *
 *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 
 *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 
 *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 
 *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 
 *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 
 *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 
 *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 
 *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 
 *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ****************************************************************************/
#include <math.h>
#include "proj.h"

#ifndef PI
#define PI 	3.141592653589793238
#endif

#define HALF_PI (PI*0.5)

#ifndef TWO_PI
#define TWO_PI 	(PI*2.0)
#endif

#define EPSLN	1.0e-10

#ifndef R2D
#define R2D     57.2957795131
#endif

#ifndef D2R
#define D2R 1.745329251994328e-2
#endif

#define S2R	4.848136811095359e-6

#ifndef OK
#define OK	0
#endif

#define UTM_ERROR  -1
#define IN_BREAK -2

/* Misc macros
  -----------*/
#define SQUARE(x)       x * x   /* x**2 */
#define CUBE(x)     x * x * x   /* x**3 */
#define QUAD(x) x * x * x * x   /* x**4 */

#define GMAX(A, B)      ((A) > (B) ? (A) : (B)) /* assign maximum of a and b */
#define GMIN(A, B)      ((A) < (B) ? (A) : (B)) /* assign minimum of a and b */

#define IMOD(A, B)      (A) - (((A) / (B)) * (B)) /* Integer mod function */