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geo_normalize.h

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00001 /******************************************************************************
00002  * $Id: geo_normalize.h,v 1.11 2004/02/03 17:19:50 warmerda Exp $
00003  *
00004  * Project:  libgeotiff
00005  * Purpose:  Include file related to geo_normalize.c containing Code to
00006  *           normalize PCS and other composite codes in a GeoTIFF file.
00007  * Author:   Frank Warmerdam, warmerda@home.com
00008  *
00009  ******************************************************************************
00010  * Copyright (c) 1999, Frank Warmerdam
00011  *
00012  * Permission is hereby granted, free of charge, to any person obtaining a
00013  * copy of this software and associated documentation files (the "Software"),
00014  * to deal in the Software without restriction, including without limitation
00015  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
00016  * and/or sell copies of the Software, and to permit persons to whom the
00017  * Software is furnished to do so, subject to the following conditions:
00018  *
00019  * The above copyright notice and this permission notice shall be included
00020  * in all copies or substantial portions of the Software.
00021  *
00022  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
00023  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
00024  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
00025  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
00026  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
00027  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
00028  * DEALINGS IN THE SOFTWARE.
00029  ******************************************************************************
00030  *
00031  * $Log: geo_normalize.h,v $
00032  * Revision 1.11  2004/02/03 17:19:50  warmerda
00033  * export GTIFAngleToDD() - used by GDAL mrsiddataset.cpp
00034  *
00035  * Revision 1.10  2003/01/15 04:39:16  warmerda
00036  * Added GTIFDeaccessCSV
00037  *
00038  * Revision 1.9  2003/01/15 03:37:40  warmerda
00039  * added GTIFFreeMemory()
00040  *
00041  * Revision 1.8  2002/11/28 22:27:42  warmerda
00042  * preliminary upgrade to EPSG 6.2.2 tables
00043  *
00044  * Revision 1.7  1999/09/17 00:55:26  warmerda
00045  * added GTIFGetUOMAngleInfo(), and UOMAngle in GTIFDefn
00046  *
00047  * Revision 1.6  1999/05/04 03:13:42  warmerda
00048  * Added prototype
00049  *
00050  * Revision 1.5  1999/04/29 23:02:55  warmerda
00051  * added docs, and MapSys related stuff
00052  *
00053  * Revision 1.4  1999/03/18 21:35:19  geotiff
00054  * Added PROJ.4 related stuff
00055  *
00056  * Revision 1.3  1999/03/17 20:44:04  geotiff
00057  * added CPL_DLL related support
00058  *
00059  * Revision 1.2  1999/03/10 18:24:06  geotiff
00060  * corrected to use int'
00061  *
00062  */
00063 
00064 #ifndef GEO_NORMALIZE_H_INCLUDED
00065 #define GEO_NORMALIZE_H_INCLUDED
00066 
00067 #include <stdio.h>
00068 #include "geotiff.h"
00069 
00070 #ifdef __cplusplus
00071 extern "C" {
00072 #endif
00073 
00080 #define MAX_GTIF_PROJPARMS      10
00081 
00086 typedef struct {
00089     short       Model;
00090 
00092     short       PCS;
00093 
00096     short       GCS;          
00097 
00099     short       UOMLength;
00100 
00102     double      UOMLengthInMeters;
00103 
00105     short       UOMAngle;
00106 
00108     double      UOMAngleInDegrees;
00109     
00111     short       Datum;
00112 
00115     short       PM;
00116 
00119     double      PMLongToGreenwich;
00120 
00123     short       Ellipsoid;
00124 
00126     double      SemiMajor;
00127 
00129     double      SemiMinor;
00130 
00132     short       ProjCode;
00133 
00136     short       Projection;
00137 
00141     short       CTProjection;   
00142 
00144     int         nParms;
00145 
00150     double      ProjParm[MAX_GTIF_PROJPARMS];
00151 
00154     int         ProjParmId[MAX_GTIF_PROJPARMS]; /* geokey identifier,
00155                                                    eg. ProjFalseEastingGeoKey*/
00156 
00159     int         MapSys;
00160 
00162     int         Zone;
00163 
00164 } GTIFDefn;
00165 
00166 int CPL_DLL GTIFGetPCSInfo( int nPCSCode, char **ppszEPSGName,
00167                             short *pnProjOp, 
00168                             short *pnUOMLengthCode, short *pnGeogCS );
00169 int CPL_DLL GTIFGetProjTRFInfo( int nProjTRFCode,
00170                                 char ** ppszProjTRFName,
00171                                 short * pnProjMethod,
00172                                 double * padfProjParms );
00173 int CPL_DLL GTIFGetGCSInfo( int nGCSCode, char **ppszName,
00174                             short *pnDatum, short *pnPM, short *pnUOMAngle );
00175 int CPL_DLL GTIFGetDatumInfo( int nDatumCode, char **ppszName,
00176                               short * pnEllipsoid );
00177 int CPL_DLL GTIFGetEllipsoidInfo( int nEllipsoid, char ** ppszName,
00178                                   double * pdfSemiMajor,
00179                                   double * pdfSemiMinor );
00180 int CPL_DLL GTIFGetPMInfo( int nPM, char **ppszName,
00181                            double * pdfLongToGreenwich );
00182 
00183 double CPL_DLL GTIFAngleStringToDD( const char *pszAngle, int nUOMAngle );
00184 int CPL_DLL GTIFGetUOMLengthInfo( int nUOMLengthCode,
00185                                   char **ppszUOMName,
00186                                   double * pdfInMeters );
00187 int CPL_DLL GTIFGetUOMAngleInfo( int nUOMAngleCode,
00188                                  char **ppszUOMName,
00189                                  double * pdfInDegrees );
00190 double CPL_DLL GTIFAngleToDD( double dfAngle, int nUOMAngle );
00191     
00192 
00193 /* this should be used to free strings returned by GTIFGet... funcs */
00194 void CPL_DLL GTIFFreeMemory( char * );
00195 void CPL_DLL GTIFDeaccessCSV();
00196 
00197 int CPL_DLL GTIFGetDefn( GTIF *psGTIF, GTIFDefn * psDefn );
00198 void CPL_DLL GTIFPrintDefn( GTIFDefn *, FILE * );
00199 void CPL_DLL GTIFFreeDefn( GTIF * );
00200 
00201 void CPL_DLL SetCSVFilenameHook( const char *(*CSVFileOverride)(const char *) );
00202 
00203 const char CPL_DLL *GTIFDecToDMS( double, const char *, int );
00204 
00205 /*
00206  * These are useful for recognising UTM and State Plane, with or without
00207  * CSV files being found.
00208  */
00209 
00210 #define MapSys_UTM_North        -9001
00211 #define MapSys_UTM_South        -9002
00212 #define MapSys_State_Plane_27   -9003
00213 #define MapSys_State_Plane_83   -9004
00214 
00215 int CPL_DLL   GTIFMapSysToPCS( int MapSys, int Datum, int nZone );
00216 int CPL_DLL   GTIFMapSysToProj( int MapSys, int nZone );
00217 int CPL_DLL   GTIFPCSToMapSys( int PCSCode, int * pDatum, int * pZone );
00218 int CPL_DLL   GTIFProjToMapSys( int ProjCode, int * pZone );
00219 
00220 /*
00221  * These are only useful if using libgeotiff with libproj (PROJ.4+).
00222  */
00223 char CPL_DLL *GTIFGetProj4Defn( GTIFDefn * );
00224 int  CPL_DLL  GTIFProj4ToLatLong( GTIFDefn *, int, double *, double * );
00225 int  CPL_DLL  GTIFProj4FromLatLong( GTIFDefn *, int, double *, double * );
00226 
00227 #if defined(HAVE_LIBPROJ) && defined(HAVE_PROJECTS_H)
00228 #  define HAVE_GTIFPROJ4
00229 #endif
00230 
00231 #ifdef __cplusplus
00232 }
00233 #endif
00234     
00235 #endif /* ndef GEO_NORMALIZE_H_INCLUDED */

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