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/**********************************************************************
*
* PostGIS - Spatial Types for PostgreSQL
* http://postgis.net
* Copyright 2001-2003 Refractions Research Inc.
*
* This is free software; you can redistribute and/or modify it under
* the terms of the GNU General Public Licence. See the COPYING file.
*
**********************************************************************/
#include "postgres.h"
#include "liblwgeom.h"
#include "lwgeom_pg.h"
typedef struct srs_precision
{
int precision_xy;
int precision_z;
int precision_m;
} srs_precision;
char* GetProj4StringSPI(int srid);
void SetPROJ4LibPath(void) ;
/**
* Opaque type to use in the projection cache API.
*/
typedef void *Proj4Cache ;
void SetPROJ4LibPath(void);
Proj4Cache GetPROJ4Cache(FunctionCallInfo fcinfo) ;
bool IsInPROJ4Cache(Proj4Cache cache, int srid) ;
void AddToPROJ4Cache(Proj4Cache cache, int srid, int other_srid);
void DeleteFromPROJ4Cache(Proj4Cache cache, int srid) ;
projPJ GetProjectionFromPROJ4Cache(Proj4Cache cache, int srid);
int GetProjectionsUsingFCInfo(FunctionCallInfo fcinfo, int srid1, int srid2, projPJ *pj1, projPJ *pj2);
int spheroid_init_from_srid(FunctionCallInfo fcinfo, int srid, SPHEROID *s);
void srid_is_latlong(FunctionCallInfo fcinfo, int srid);
srs_precision srid_axis_precision(FunctionCallInfo fcinfo, int srid, int precision);
/**
* Builtin SRID values
* @{
*/
/** Start of the reserved offset */
#define SRID_RESERVE_OFFSET 999000
/** World Mercator, equivalent to EPSG:3395 */
#define SRID_WORLD_MERCATOR 999000
/** Start of UTM North zone, equivalent to EPSG:32601 */
#define SRID_NORTH_UTM_START 999001
/** End of UTM North zone, equivalent to EPSG:32660 */
#define SRID_NORTH_UTM_END 999060
/** Lambert Azimuthal Equal Area (LAEA) North Pole, equivalent to EPSG:3574 */
#define SRID_NORTH_LAMBERT 999061
/** PolarSteregraphic North, equivalent to EPSG:3995 */
#define SRID_NORTH_STEREO 999062
/** Start of UTM South zone, equivalent to EPSG:32701 */
#define SRID_SOUTH_UTM_START 999101
/** Start of UTM South zone, equivalent to EPSG:32760 */
#define SRID_SOUTH_UTM_END 999160
/** Lambert Azimuthal Equal Area (LAEA) South Pole, equivalent to EPSG:3409 */
#define SRID_SOUTH_LAMBERT 999161
/** PolarSteregraphic South, equivalent to EPSG:3031 */
#define SRID_SOUTH_STEREO 999162
/** LAEA zones start (6 latitude bands x up to 20 longitude bands) */
#define SRID_LAEA_START 999163
/** LAEA zones end (6 latitude bands x up to 20 longitude bands) */
#define SRID_LAEA_END 999283
/** @} */
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