mapproject.h 4.29 KB
Newer Older
1
/******************************************************************************
2
 * $Id$
3 4 5 6 7 8 9 10 11 12 13 14 15 16 17
 *
 * 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:
 *
18
 * The above copyright notice and this permission notice shall be included in
19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39
 * 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

40 41 42
/* workaround to allow compiling against Proj 6.x (#5766) */
#define ACCEPT_USE_OF_DEPRECATED_PROJ_API_H 1

43 44
#ifdef USE_PROJ
#  include <proj_api.h>
45 46
#if PJ_VERSION >= 470 && PJ_VERSION < 480
   void pj_clear_initcache();
47
#endif
48 49 50 51 52
#endif

#define wkp_none 0
#define wkp_lonlat 1
#define wkp_gmerc 2
53 54


55
  typedef struct {
56
#ifdef SWIG
57
    %immutable;
58
#endif
59 60
    int numargs; /* actual number of projection args */
    int automatic; /* projection object was to fetched from the layer */
61
#ifdef SWIG
62
    %mutable;
63 64
#endif
#ifndef SWIG
65
    char **args; /* variable number of projection args */
66
#ifdef USE_PROJ
67 68 69 70
    projPJ proj; /* a projection structure for the PROJ package */
#if PJ_VERSION >= 480
    projCtx proj_ctx;
#endif
71
#else
72
    void *proj;
73
#endif
74
    geotransformObj gt; /* extra transformation to apply */
75
#endif
76 77
    int wellknownprojection;
  } projectionObj;
78 79 80

#ifndef SWIG

81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96
  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);
97 98
  int msIsAxisInvertedProj( projectionObj *proj );
  void msAxisSwapShape(shapeObj *shape);
99 100 101 102
  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 );
103

104
  MS_DLL_EXPORT void msSetPROJ_LIB( const char *, const char * );
105
  MS_DLL_EXPORT void msProjLibInitFromEnv();
106

107
  /* Provides compatiblity with PROJ.4 4.4.2 */
108
#ifndef PJ_VERSION
109
#  define pj_is_latlong(x)  ((x)->is_latlong)
110 111
#endif

112 113
  /*utility functions */
  MS_DLL_EXPORT int GetMapserverUnitUsingProj(projectionObj *psProj);
114 115

  int msProjectHasLonWrap(projectionObj *in, double* pdfLonWrap);
116 117 118 119 120 121 122
#endif

#ifdef __cplusplus
}
#endif

#endif /* MAPPROJECT_H */