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/******************************************************************************
* $Id$
*
* Project: MapServer
* Purpose: Declarations of the projectionObj and related functions.
* Author: Steve Lime and the MapServer team.
*
******************************************************************************
* Copyright (c) 1996-2005 Regents of the University of Minnesota.
*
* 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 of this Software or works derived from this 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 EVENT 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.
****************************************************************************/
#ifndef MAPPROJECT_H
#define MAPPROJECT_H
#include "mapprimitive.h"
#include "maphash.h"
#ifdef __cplusplus
extern "C" {
#endif
#ifdef USE_PROJ
# include <proj_api.h>
#endif
#define wkp_none 0
#define wkp_lonlat 1
#define wkp_gmerc 2
typedef struct {
#ifdef SWIG
%immutable;
#endif
int numargs; /* actual number of projection args */
int automatic; /* projection object was to fetched from the layer */
#ifdef SWIG
%mutable;
#endif
#ifndef SWIG
char **args; /* variable number of projection args */
#ifdef USE_PROJ
projPJ proj; /* a projection structure for the PROJ package */
#if PJ_VERSION >= 480
projCtx proj_ctx;
#endif
#else
void *proj;
#endif
geotransformObj gt; /* extra transformation to apply */
#endif
int wellknownprojection;
} projectionObj;
#ifndef SWIG
MS_DLL_EXPORT int msIsAxisInverted(int epsg_code);
MS_DLL_EXPORT int msProjectPoint(projectionObj *in, projectionObj *out, pointObj *point);
MS_DLL_EXPORT int msProjectShape(projectionObj *in, projectionObj *out, shapeObj *shape);
MS_DLL_EXPORT int msProjectLine(projectionObj *in, projectionObj *out, lineObj *line);
MS_DLL_EXPORT int msProjectRect(projectionObj *in, projectionObj *out, rectObj *rect);
MS_DLL_EXPORT int msProjectionsDiffer(projectionObj *, projectionObj *);
MS_DLL_EXPORT int msOGCWKT2ProjectionObj( const char *pszWKT, projectionObj *proj, int
debug_flag );
MS_DLL_EXPORT char *msProjectionObj2OGCWKT( projectionObj *proj );
MS_DLL_EXPORT void msFreeProjection(projectionObj *p);
MS_DLL_EXPORT int msInitProjection(projectionObj *p);
MS_DLL_EXPORT int msProcessProjection(projectionObj *p);
MS_DLL_EXPORT int msLoadProjectionString(projectionObj *p, const char *value);
MS_DLL_EXPORT int msLoadProjectionStringEPSG(projectionObj *p, const char *value);
MS_DLL_EXPORT char *msGetProjectionString(projectionObj *proj);
MS_DLL_EXPORT void msAxisNormalizePoints( projectionObj *proj, int count,
double *x, double *y );
MS_DLL_EXPORT void msAxisDenormalizePoints( projectionObj *proj, int count,
double *x, double *y );
MS_DLL_EXPORT void msSetPROJ_LIB( const char *, const char * );
/* Provides compatiblity with PROJ.4 4.4.2 */
#ifndef PJ_VERSION
# define pj_is_latlong(x) ((x)->is_latlong)
#endif
/*utility functions */
MS_DLL_EXPORT int GetMapserverUnitUsingProj(projectionObj *psProj);
#endif
#ifdef __cplusplus
}
#endif
#endif /* MAPPROJECT_H */
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