/usr/include/gmt/carter.h is in libgmt-dev 4.5.12-1.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 | /*--------------------------------------------------------------------
* $Id: carter.h 10173 2014-01-01 09:52:34Z pwessel $
*
* Copyright (c) 1991-2014 by P. Wessel and W. H. F. Smith
* See LICENSE.TXT file for copying and redistribution conditions.
*
* 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; version 2 or 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.
*
* Contact info: gmt.soest.hawaii.edu
*--------------------------------------------------------------------*/
/* carter.h contains definitions, global variables, and function prototypes
* for the Carter water depth correction system employed by GMT.
*/
/* Various size parameters */
#define N_CARTER_BINS 64800 /* Number of 1x1 degree bins */
#define N_CARTER_ZONES 85 /* Number of Carter zones */
#define N_CARTER_OFFSETS 86 /* Number of Carter offsets */
#define N_CARTER_CORRECTIONS 5812 /* Number of Carter corrections */
/* Function ANSI-C prototypes */
int carter_setup (void);
int carter_get_bin (int lat, int lon, int *bin);
int carter_get_zone (int bin, int *zone);
int carter_depth_from_twt (int zone, short int twt_in_msec, short int *depth_in_corr_m);
int carter_twt_from_depth (int zone, short int depth_in_corr_m, short int *twt_in_msec);
/* Global variables */
short int carter_zone[N_CARTER_BINS];
short int carter_offset[N_CARTER_OFFSETS];
short int carter_correction[N_CARTER_CORRECTIONS];
int carter_not_initialized = 1;
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