/usr/include/gmt/gmt_boundcond.h is in libgmt-dev 4.5.6-1.
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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 46 47 48 49 50 51 52 53 54 55 56 57 | /*--------------------------------------------------------------------
* $Id: gmt_boundcond.h,v 1.21 2011/03/03 21:02:50 guru Exp $
*
* Copyright (c) 1991-2011 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
*--------------------------------------------------------------------*/
/*
* gmt_boundcond.h defines structures and functions used for setting
* boundary conditions in processing grd file data.
*
* Author: W H F Smith
* Date: 17 April 1998
* Version: 4.1.x
*
*/
#ifndef _GMT_BOUNDCOND_H
#define _GMT_BOUNDCOND_H
struct GMT_EDGEINFO {
/* Description below is the final outcome after parse and verify */
GMT_LONG nxp; /* if X periodic, nxp > 0 is the period in pixels */
GMT_LONG nyp; /* if Y periodic, nxp > 0 is the period in pixels */
GMT_LONG gn; /* TRUE if top edge will be set as N pole */
GMT_LONG gs; /* TRUE if bottom edge will be set as S pole */
};
/* GMT_boundcond_init initializes elements of struct to 0 and FALSE */
EXTERN_MSC void GMT_boundcond_init (struct GMT_EDGEINFO *edgeinfo);
/* GMT_boundcond_parse reads the argv[i][2] string and flags user's wishes */
EXTERN_MSC GMT_LONG GMT_boundcond_parse (struct GMT_EDGEINFO *edgeinfo, char *edgestring);
/* GMT_boundcond_param_prep sets edgeinfo according to wishes and grd h */
EXTERN_MSC GMT_LONG GMT_boundcond_param_prep (struct GRD_HEADER *h, struct GMT_EDGEINFO *edgeinfo);
/* GMT_boundcond_set sets padding values around grd to implement bond conds. */
EXTERN_MSC GMT_LONG GMT_boundcond_set (struct GRD_HEADER *h, struct GMT_EDGEINFO *edgeinfo, GMT_LONG *pad, float *data);
/* GMT_?_out_of_bounds will shift i or j according to BC or return TRUE if outside */
EXTERN_MSC GMT_LONG GMT_y_out_of_bounds (GMT_LONG *j, struct GRD_HEADER *h, struct GMT_EDGEINFO *edgeinfo, GMT_LONG *wrap_180);
EXTERN_MSC GMT_LONG GMT_x_out_of_bounds (GMT_LONG *i, struct GRD_HEADER *h, struct GMT_EDGEINFO *edgeinfo, GMT_LONG wrap_180);
#endif /* _GMT_BOUNDCOND_H */
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