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72 lines
2 KiB
C
72 lines
2 KiB
C
/**********************************************************************
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* $Id: lwgeom_transform.h -1M 2011-08-11 11:15:57Z (local) $
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*
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* PostGIS - Spatial Types for PostgreSQL
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* http://postgis.refractions.net
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* Copyright 2001-2003 Refractions Research Inc.
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*
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* This is free software; you can redistribute and/or modify it under
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* the terms of the GNU General Public Licence. See the COPYING file.
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*
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**********************************************************************/
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#include "postgres.h"
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#include "liblwgeom.h"
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#include "lwgeom_pg.h"
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#include "proj_api.h"
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char* GetProj4StringSPI(int srid);
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void SetPROJ4LibPath(void) ;
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/**
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* Opaque type to use in the projection cache API.
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*/
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typedef void *Proj4Cache ;
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void SetPROJ4LibPath(void);
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Proj4Cache GetPROJ4Cache(FunctionCallInfoData *fcinfo) ;
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bool IsInPROJ4Cache(Proj4Cache cache, int srid) ;
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void AddToPROJ4Cache(Proj4Cache cache, int srid, int other_srid);
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void DeleteFromPROJ4Cache(Proj4Cache cache, int srid) ;
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projPJ GetProjectionFromPROJ4Cache(Proj4Cache cache, int srid);
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/**
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* Builtin SRID values
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* @{
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*/
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/** Start of the reserved offset */
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#define SRID_RESERVE_OFFSET 999000
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/** World Mercator, equivalent to EPSG:3395 */
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#define SRID_WORLD_MERCATOR 999000
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/** Start of UTM North zone, equivalent to EPSG:32601 */
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#define SRID_NORTH_UTM_START 999001
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/** End of UTM North zone, equivalent to EPSG:32660 */
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#define SRID_NORTH_UTM_END 999060
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/** Lambert Azimuthal Equal Area North Pole, equivalent to EPSG:3574 */
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#define SRID_NORTH_LAMBERT 999061
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/** PolarSteregraphic North, equivalent to EPSG:3995 */
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#define SRID_NORTH_STEREO 999062
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/** Start of UTM South zone, equivalent to EPSG:32701 */
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#define SRID_SOUTH_UTM_START 999101
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/** Start of UTM South zone, equivalent to EPSG:32760 */
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#define SRID_SOUTH_UTM_END 999160
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/** Lambert Azimuthal Equal Area South Pole, equivalent to EPSG:3409 */
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#define SRID_SOUTH_LAMBERT 999161
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/** PolarSteregraphic South, equivalent to EPSG:3031 */
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#define SRID_SOUTH_STEREO 999162
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/** @} */
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