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/******************************************************************************
* Project: PROJ.4
* Purpose: Internal plumbing for the PROJ.4 library.
*
* Author: Thomas Knudsen, <thokn@sdfe.dk>
*
******************************************************************************
* Copyright (c) 2016, 2017, Thomas Knudsen / SDFE
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO COORD SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*****************************************************************************/
#ifdef _MSC_VER
#ifndef _USE_MATH_DEFINES
#define _USE_MATH_DEFINES
#endif
#endif
#include <math.h> /* For M_PI */
#include <proj.h>
#ifdef PROJECTS_H
#error proj_internal.h must be included before projects.h
#endif
#ifdef PROJ_API_H
#error proj_internal.h must be included before proj_api.h
#endif
#ifndef PROJ_INTERNAL_H
#define PROJ_INTERNAL_H
#ifdef __cplusplus
extern "C" {
#endif
#define STATIC_ASSERT(COND) ((void)sizeof(char[(COND) ? 1 : -1]))
#ifndef PJ_TODEG
#define PJ_TODEG(rad) ((rad)*180.0/M_PI)
#endif
#ifndef PJ_TORAD
#define PJ_TORAD(deg) ((deg)*M_PI/180.0)
#endif
/* This enum is also conditionally defined in projects.h - but we need it here */
/* for the pj_left/right prototypes, and enums cannot be forward declared */
enum pj_io_units {
PJ_IO_UNITS_CLASSIC = 0, /* Scaled meters (right) */
PJ_IO_UNITS_METERS = 1, /* Meters */
PJ_IO_UNITS_RADIANS = 2 /* Radians */
};
enum pj_io_units pj_left (PJ *P);
enum pj_io_units pj_right (PJ *P);
PJ_COORD proj_trans (PJ *P, PJ_DIRECTION direction, PJ_COORD obs);
PJ_COORD proj_coord_error (void);
void proj_context_errno_set (PJ_CONTEXT *ctx, int err);
void proj_context_set (PJ *P, PJ_CONTEXT *ctx);
void proj_context_inherit (PJ *parent, PJ *child);
PJ_COORD pj_fwd4d (PJ_COORD coo, PJ *P);
PJ_COORD pj_inv4d (PJ_COORD coo, PJ *P);
/* Grid functionality */
int proj_vgrid_init(PJ *P, const char *grids);
int proj_hgrid_init(PJ *P, const char *grids);
double proj_vgrid_value(PJ *P, LP lp);
LP proj_hgrid_value(PJ *P, LP lp);
LP proj_hgrid_apply(PJ *P, LP lp, PJ_DIRECTION direction);
/* High level functionality for handling thread contexts */
enum proj_log_level {
PJ_LOG_NONE = 0,
PJ_LOG_ERROR = 1,
PJ_LOG_DEBUG = 2,
PJ_LOG_TRACE = 3,
PJ_LOG_TELL = 4,
PJ_LOG_DEBUG_MAJOR = 2, /* for proj_api.h compatibility */
PJ_LOG_DEBUG_MINOR = 3 /* for proj_api.h compatibility */
};
/* Set logging level 0-3. Higher number means more debug info. 0 turns it off */
enum proj_log_level proj_log_level (PJ_CONTEXT *ctx, enum proj_log_level log_level);
typedef void (*PJ_LOG_FUNCTION)(void *, int, const char *);
void proj_log_error (PJ *P, const char *fmt, ...);
void proj_log_debug (PJ *P, const char *fmt, ...);
void proj_log_trace (PJ *P, const char *fmt, ...);
void proj_log_func (PJ_CONTEXT *ctx, void *app_data, PJ_LOG_FUNCTION log);
void pj_inherit_ellipsoid_def (const PJ *src, PJ *dst);
void pj_erase_ellipsoid_def (PJ *P);
int pj_calc_ellipsoid_params (PJ *P, double a, double es);
/* Lowest level: Minimum support for fileapi */
void proj_fileapi_set (PJ *P, void *fileapi);
const char **proj_get_searchpath(void);
int proj_get_path_count(void);
size_t pj_strlcpy(char *dst, const char *src, size_t siz);
#ifdef __cplusplus
}
#endif
#endif /* ndef PROJ_INTERNAL_H */
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