/**********************************************************************
 * $Id: geoconcept_syscoord.h$
 *
 * Name:     geoconcept_syscoord.h
 * Project:  OpenGIS Simple Features Reference Implementation
 * Purpose:  Implements translation between Geoconcept SysCoord
 *           and OGRSpatialRef format
 * Language: C
 *
 **********************************************************************
 * Copyright (c) 2007,  Geoconcept and IGN
 * Copyright (c) 2008, Even Rouault <even dot rouault at spatialys.com>
 *
 * SPDX-License-Identifier: MIT
 **********************************************************************/
#ifndef GEOCONCEPT_SYSCOORD_H_INCLUDED
#define GEOCONCEPT_SYSCOORD_H_INCLUDED

#include "ogr_srs_api.h"

#ifdef GCSRS_DLLEXPORT
#define GCSRSAPI_CALL __declspec(dllexport)
#define GCSRSAPI_CALL1(x) __declspec(dllexport) x
#endif

#ifndef GCSRSAPI_CALL
#define GCSRSAPI_CALL
#endif

#ifndef GCSRSAPI_CALL1
#define GCSRSAPI_CALL1(x) x GCSRSAPI_CALL
#endif

#ifdef __cplusplus
extern "C"
{
#endif

    /* -------------------------------------------------------------------- */
    /*      GCSRS API Types                                                 */
    /* -------------------------------------------------------------------- */
    typedef struct _tSpheroidInfo_GCSRS GCSpheroidInfo;
    typedef struct _tDatumInfo_GCSRS GCDatumInfo;
    typedef struct _tProjectionInfo_GCSRS GCProjectionInfo;
    typedef struct _tSysCoord_GCSRS GCSysCoord;

    struct _tSpheroidInfo_GCSRS
    {
        const char *pszSpheroidName;
        double dfA; /* semi major axis in meters */
        double dfE; /* eccentricity */
        int nEllipsoidID;
    };

    struct _tDatumInfo_GCSRS
    {
        const char *pszDatumName;
        double dfShiftX;
        double dfShiftY;
        double dfShiftZ;
        double dfRotX;
        double dfRotY;
        double dfRotZ;
        double dfScaleFactor;
        double dfDiffA;          /*
                                  * semi-major difference to-datum minus from-datum :
                                  * http://home.hiwaay.net/~taylorc/bookshelf/math-science/geodesy/datum/transform/molodensky/
                                  */
        double dfDiffFlattening; /*
                                  * Change in flattening : "to" minus "from"
                                  */
        int nEllipsoidID;
        int nDatumID;
    };

    struct _tProjectionInfo_GCSRS
    {
        const char *pszProjName;
        /* TODO: Translate to English. */
        int nSphere; /*
                      * 1 = sphere de courbure
                      * 2 = sphere equatoriale
                      * 3 = sphere bitangeante
                      * 4 = sphere polaire nord
                      * 5 = sphere polaire sud
                      * 6 = Hotine
                      */
        int nProjID;
    };

    struct _tSysCoord_GCSRS
    {
        const char *pszSysCoordName;
        const char *pszUnit;

        double dfPM;
        /* inherited : */
        double dfLambda0;
        double dfPhi0;
        double dfk0;
        double dfX0;
        double dfY0;
        double dfPhi1;
        double dfPhi2;

        int nDatumID;
        int nProjID;
        int coordSystemID;
        int timeZoneValue; /* when 0, replace by zone */
    };

    /* -------------------------------------------------------------------- */
    /*      GCSRS API Prototypes                                            */
    /* -------------------------------------------------------------------- */

#define GetInfoSpheroidID_GCSRS(theSpheroid) (theSpheroid)->nEllipsoidID
#define GetInfoSpheroidName_GCSRS(theSpheroid) (theSpheroid)->pszSpheroidName
#define GetInfoSpheroidSemiMajor_GCSRS(theSpheroid) (theSpheroid)->dfA
#define GetInfoSpheroidExcentricity_GCSRS(theSpheroid) (theSpheroid)->dfE

#define GetInfoDatumID_GCSRS(theDatum) (theDatum)->nDatumID
#define GetInfoDatumName_GCSRS(theDatum) (theDatum)->pszDatumName
#define GetInfoDatumShiftX_GCSRS(theDatum) (theDatum)->dfShiftX
#define GetInfoDatumShiftY_GCSRS(theDatum) (theDatum)->dfShiftY
#define GetInfoDatumShiftZ_GCSRS(theDatum) (theDatum)->dfShiftZ
#define GetInfoDatumDiffA_GCSRS(theDatum) (theDatum)->dfDiffA
#define GetInfoDatumRotationX_GCSRS(theDatum) (theDatum)->dfRotX
#define GetInfoDatumRotationY_GCSRS(theDatum) (theDatum)->dfRotY
#define GetInfoDatumRotationZ_GCSRS(theDatum) (theDatum)->dfRotZ
#define GetInfoDatumScaleFactor_GCSRS(theDatum) (theDatum)->dfScaleFactor
#define GetInfoDatumDiffFlattening_GCSRS(theDatum) (theDatum)->dfDiffFlattening
#define GetInfoDatumSpheroidID_GCSRS(theDatum) (theDatum)->nEllipsoidID

#define GetInfoProjID_GCSRS(theProj) (theProj)->nProjID
#define GetInfoProjName_GCSRS(theProj) (theProj)->pszProjName
#define GetInfoProjSphereType_GCSRS(theProj) (theProj)->nSphere
#define GetInfoProjSpheroidID_GCSRS(theProj) (theProj)->nEllipsoidID

    GCSysCoord GCSRSAPI_CALL1(*) CreateSysCoord_GCSRS(int srsid, int timezone);
    void GCSRSAPI_CALL DestroySysCoord_GCSRS(GCSysCoord **theSysCoord);
#define GetSysCoordSystemID_GCSRS(theSysCoord) (theSysCoord)->coordSystemID
#define SetSysCoordSystemID_GCSRS(theSysCoord, v)                              \
    (theSysCoord)->coordSystemID = (v)
#define GetSysCoordTimeZone_GCSRS(theSysCoord) (theSysCoord)->timeZoneValue
#define SetSysCoordTimeZone_GCSRS(theSysCoord, v)                              \
    (theSysCoord)->timeZoneValue = (v)
#define GetSysCoordName_GCSRS(theSysCoord) (theSysCoord)->pszSysCoordName
#define SetSysCoordName_GCSRS(theSysCoord, v)                                  \
    (theSysCoord)->pszSysCoordName = (v)
#define GetSysCoordUnit_GCSRS(theSysCoord) (theSysCoord)->pszUnit
#define SetSysCoordUnit_GCSRS(theSysCoord, v) (theSysCoord)->pszUnit = (v)
#define GetSysCoordPrimeMeridian_GCSRS(theSysCoord) (theSysCoord)->dfPM
#define SetSysCoordPrimeMeridian_GCSRS(theSysCoord, v) (theSysCoord)->dfPM = (v)
#define GetSysCoordCentralMeridian_GCSRS(theSysCoord) (theSysCoord)->dfLambda0
#define SetSysCoordCentralMeridian_GCSRS(theSysCoord, v)                       \
    (theSysCoord)->dfLambda0 = (v)
#define GetSysCoordLatitudeOfOrigin_GCSRS(theSysCoord) (theSysCoord)->dfPhi0
#define SetSysCoordLatitudeOfOrigin_GCSRS(theSysCoord, v)                      \
    (theSysCoord)->dfPhi0 = (v)
#define GetSysCoordStandardParallel1_GCSRS(theSysCoord) (theSysCoord)->dfPhi1
#define SetSysCoordStandardParallel1_GCSRS(theSysCoord, v)                     \
    (theSysCoord)->dfPhi1 = (v)
#define GetSysCoordStandardParallel2_GCSRS(theSysCoord) (theSysCoord)->dfPhi2
#define SetSysCoordStandardParallel2_GCSRS(theSysCoord, v)                     \
    (theSysCoord)->dfPhi2 = (v)
#define GetSysCoordScaleFactor_GCSRS(theSysCoord) (theSysCoord)->dfk0
#define SetSysCoordScaleFactor_GCSRS(theSysCoord, v) (theSysCoord)->dfk0 = (v)
#define GetSysCoordFalseEasting_GCSRS(theSysCoord) (theSysCoord)->dfX0
#define SetSysCoordFalseEasting_GCSRS(theSysCoord, v) (theSysCoord)->dfX0 = (v)
#define GetSysCoordFalseNorthing_GCSRS(theSysCoord) (theSysCoord)->dfY0
#define SetSysCoordFalseNorthing_GCSRS(theSysCoord, v) (theSysCoord)->dfY0 = (v)
#define GetSysCoordDatumID_GCSRS(theSysCoord) (theSysCoord)->nDatumID
#define SetSysCoordDatumID_GCSRS(theSysCoord, v) (theSysCoord)->nDatumID = (v)
#define GetSysCoordProjID_GCSRS(theSysCoord) (theSysCoord)->nProjID
#define SetSysCoordProjID_GCSRS(theSysCoord, v) (theSysCoord)->nProjID = (v)

    GCSysCoord GCSRSAPI_CALL1(*)
        OGRSpatialReference2SysCoord_GCSRS(OGRSpatialReferenceH poSR);
    OGRSpatialReferenceH GCSRSAPI_CALL
    SysCoord2OGRSpatialReference_GCSRS(GCSysCoord *syscoord);

#ifdef __cplusplus
}
#endif

#endif /* ndef GEOCONCEPT_SYSCOORD_H_INCLUDED */