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# ogr_core.h

    00001 /******************************************************************************
    00002  * $Id: ogr_core.h,v 1.30 2006/04/02 18:25:59 fwarmerdam Exp $
    00003  *
    00004  * Project:  OpenGIS Simple Features Reference Implementation
    00005  * Purpose:  Define some core portability services for cross-platform OGR code.
    00006  * Author:   Frank Warmerdam, warmerdam@pobox.com
    00007  *
    00008  ******************************************************************************
    00009  * Copyright (c) 1999, Frank Warmerdam
    00010  *
    00011  * Permission is hereby granted, free of charge, to any person obtaining a
    00012  * copy of this software and associated documentation files (the "Software"),
    00013  * to deal in the Software without restriction, including without limitation
    00014  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
    00015  * and/or sell copies of the Software, and to permit persons to whom the
    00016  * Software is furnished to do so, subject to the following conditions:
    00017  *
    00018  * The above copyright notice and this permission notice shall be included
    00019  * in all copies or substantial portions of the Software.
    00020  *
    00021  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
    00022  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
    00023  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
    00024  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
    00025  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
    00026  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
    00027  * DEALINGS IN THE SOFTWARE.
    00028  ******************************************************************************
    00029  *
    00030  * $Log: ogr_core.h,v $
    00031  * Revision 1.30  2006/04/02 18:25:59  fwarmerdam
    00032  * added OFTDateTime, and OFTTime support
    00033  *
    00034  * Revision 1.29  2006/02/15 04:25:37  fwarmerdam
    00035  * added date support
    00036  *
    00037  * Revision 1.28  2005/08/30 23:52:35  fwarmerdam
    00038  * implement preliminary OFTBinary support
    00039  *
    00040  * Revision 1.27  2005/07/29 15:54:07  fwarmerdam
    00041  * ogrmakewktcoordinate defined in ogr_p.h
    00042  *
    00043  * Revision 1.26  2005/07/29 04:12:47  fwarmerdam
    00044  * expose OGRMakeWktCoordinates
    00045  *
    00046  * Revision 1.25  2005/02/02 19:59:47  fwarmerdam
    00047  * added SetNextByIndex support
    00048  *
    00049  * Revision 1.24  2003/10/09 15:27:41  warmerda
    00050  * added OGRLayer::DeleteFeature() support
    00051  *
    00052  * Revision 1.23  2003/09/11 19:59:41  warmerda
    00053  * avoid casting issue with UNFIX macro
    00054  *
    00055  * Revision 1.22  2003/08/27 15:40:37  warmerda
    00056  * added support for generating DB2 V7.2 compatible WKB
    00057  *
    00058  * Revision 1.21  2003/08/11 03:28:04  warmerda
    00059  * Export OGREnvelope C++ class with CPL_DLL as per bug 378.
    00060  *
    00061  * Revision 1.20  2003/06/09 13:48:54  warmerda
    00062  * added DB2 V7.2 byte order hack
    00063  *
    00064  * Revision 1.19  2003/05/08 13:27:22  warmerda
    00065  * dont use C++ comments in this c includable file
    00066  *
    00067  * Revision 1.18  2003/04/29 19:03:58  warmerda
    00068  * removed extra comma
    00069  *
    00070  * Revision 1.17  2003/03/03 05:05:54  warmerda
    00071  * added support for DeleteDataSource and DeleteLayer
    00072  *
    00073  * Revision 1.16  2003/02/19 02:57:49  warmerda
    00074  * added wkbLinearRing support
    00075  *
    00076  * Revision 1.15  2003/01/14 20:08:49  warmerda
    00077  * fixed another bug in OGREnvelope.Merge
    00078  *
    00079  * Revision 1.14  2003/01/07 17:51:55  warmerda
    00080  * fixed OGREnvelope.Merge()
    00081  *
    00082  * Revision 1.13  2003/01/06 17:56:03  warmerda
    00083  * Added Merge and IsInit() method on OGREnvelope
    00084  *
    00085  * Revision 1.12  2002/11/08 18:25:45  warmerda
    00086  * remove extranious comma in enum, confuses HPUX compiler
    00087  *
    00088  * Revision 1.11  2002/11/08 15:42:41  warmerda
    00089  * ensure type correctness of wkbFlatten
    00090  *
    00091  * Revision 1.10  2002/10/24 20:53:02  warmerda
    00092  * expand tabs
    00093  *
    00094  * Revision 1.9  2002/09/26 18:13:17  warmerda
    00095  * moved some defs to ogr_core.h for sharing with ogr_api.h
    00096  *
    00097  * Revision 1.8  2000/07/11 20:15:12  warmerda
    00098  * apply CPL_DLL to OGR functions
    00099  *
    00100  * Revision 1.7  2000/07/09 20:47:35  warmerda
    00101  * added CPL_START/END
    00102  *
    00103  * Revision 1.6  1999/11/18 19:02:19  warmerda
    00104  * expanded tabs
    00105  *
    00106  * Revision 1.5  1999/07/07 04:23:07  danmo
    00107  * Fixed typo in  #define _OGR_..._H_INCLUDED  line
    00108  *
    00109  * Revision 1.4  1999/07/05 18:56:52  warmerda
    00110  * now includes cpl_port.h
    00111  *
    00112  * Revision 1.3  1999/07/05 17:19:03  warmerda
    00113  * added OGRERR_UNSUPPORTED_SRS
    00114  *
    00115  * Revision 1.2  1999/05/31 15:00:37  warmerda
    00116  * added generic OGRERR_FAILURE error code.
    00117  *
    00118  * Revision 1.1  1999/05/20 14:35:00  warmerda
    00119  * New
    00120  *
    00121  */
    00122
    00123 #ifndef _OGR_CORE_H_INCLUDED
    00124 #define _OGR_CORE_H_INCLUDED
    00125
    00126 #include "cpl_port.h"
    00127
    00132 #ifdef __cplusplus
    00133 class CPL_DLL OGREnvelope
    00134 {
    00135   public:
    00136         OGREnvelope()
    00137         {
    00138                 MinX = MaxX = MinY = MaxY = 0;
    00139         }
    00140     double      MinX;
    00141     double      MaxX;
    00142     double      MinY;
    00143     double      MaxY;
    00144
    00145     int  IsInit() { return MinX != 0 || MinY != 0 || MaxX != 0 || MaxY != 0; }
    00146     void Merge( OGREnvelope & sOther ) {
    00147         if( IsInit() )
    00148         {
    00149             MinX = MIN(MinX,sOther.MinX);
    00150             MaxX = MAX(MaxX,sOther.MaxX);
    00151             MinY = MIN(MinY,sOther.MinY);
    00152             MaxY = MAX(MaxY,sOther.MaxY);
    00153         }
    00154         else
    00155         {
    00156             MinX = sOther.MinX;
    00157             MaxX = sOther.MaxX;
    00158             MinY = sOther.MinY;
    00159             MaxY = sOther.MaxY;
    00160         }
    00161     }
    00162 };
    00163 #else
    00164 typedef struct
    00165 {
    00166     double      MinX;
    00167     double      MaxX;
    00168     double      MinY;
    00169     double      MaxY;
    00170 } OGREnvelope;
    00171 #endif
    00172
    00173 CPL_C_START
    00174
    00175 void CPL_DLL *OGRMalloc( size_t );
    00176 void CPL_DLL *OGRCalloc( size_t, size_t );
    00177 void CPL_DLL *OGRRealloc( void *, size_t );
    00178 char CPL_DLL *OGRStrdup( const char * );
    00179 void CPL_DLL OGRFree( void * );
    00180
    00181 typedef int OGRErr;
    00182
    00183 #define OGRERR_NONE                0
    00184 #define OGRERR_NOT_ENOUGH_DATA     1    /* not enough data to deserialize */
    00185 #define OGRERR_NOT_ENOUGH_MEMORY   2
    00186 #define OGRERR_UNSUPPORTED_GEOMETRY_TYPE 3
    00187 #define OGRERR_UNSUPPORTED_OPERATION 4
    00188 #define OGRERR_CORRUPT_DATA        5
    00189 #define OGRERR_FAILURE             6
    00190 #define OGRERR_UNSUPPORTED_SRS     7
    00191
    00192 typedef int     OGRBoolean;
    00193
    00194 /* -------------------------------------------------------------------- */
    00195 /*      ogr_geometry.h related definitions.                             */
    00196 /* -------------------------------------------------------------------- */
    00203 typedef enum
    00204 {
    00205     wkbUnknown = 0,             /* non-standard */
    00206     wkbPoint = 1,               /* rest are standard WKB type codes */
    00207     wkbLineString = 2,
    00208     wkbPolygon = 3,
    00209     wkbMultiPoint = 4,
    00210     wkbMultiLineString = 5,
    00211     wkbMultiPolygon = 6,
    00212     wkbGeometryCollection = 7,
    00213     wkbNone = 100,              /* non-standard, for pure attribute records */
    00214     wkbLinearRing = 101,        /* non-standard, just for createGeometry() */
    00215     wkbPoint25D = 0x80000001,   /* 2.5D extensions as per 99-402 */
    00216     wkbLineString25D = 0x80000002,
    00217     wkbPolygon25D = 0x80000003,
    00218     wkbMultiPoint25D = 0x80000004,
    00219     wkbMultiLineString25D = 0x80000005,
    00220     wkbMultiPolygon25D = 0x80000006,
    00221     wkbGeometryCollection25D = 0x80000007
    00222 } OGRwkbGeometryType;
    00223
    00224 #define wkb25DBit 0x80000000
    00225 #define wkbFlatten(x)  ((OGRwkbGeometryType) ((x) & (~wkb25DBit)))
    00226
    00227 #define ogrZMarker 0x21125711
    00228
    00229 const char CPL_DLL * OGRGeometryTypeToName( OGRwkbGeometryType eType );
    00230
    00231 typedef enum
    00232 {
    00233     wkbXDR = 0,         /* MSB/Sun/Motoroloa: Most Significant Byte First   */
    00234     wkbNDR = 1          /* LSB/Intel/Vax: Least Significant Byte First      */
    00235 } OGRwkbByteOrder;
    00236
    00237 #ifndef NO_HACK_FOR_IBM_DB2_V72
    00238 #  define HACK_FOR_IBM_DB2_V72
    00239 #endif
    00240
    00241 #ifdef HACK_FOR_IBM_DB2_V72
    00242 #  define DB2_V72_FIX_BYTE_ORDER(x) ((((x) & 0x31) == (x)) ? (OGRwkbByteOrder) ((x) & 0x1) : (x))
    00243 #  define DB2_V72_UNFIX_BYTE_ORDER(x) ((unsigned char) (OGRGeometry::bGenerate_DB2_V72_BYTE_ORDER ? ((x) | 0x30) : (x)))
    00244 #else
    00245 #  define DB2_V72_FIX_BYTE_ORDER(x) (x)
    00246 #  define DB2_V72_UNFIX_BYTE_ORDER(x) (x)
    00247 #endif
    00248
    00249 /************************************************************************/
    00250 /*                  ogr_feature.h related definitions.                  */
    00251 /************************************************************************/
    00252
    00259 typedef enum
    00260 {                   OFTInteger = 0,                 OFTIntegerList = 1,        OFTReal = 2,                        OFTRealList = 3,                  OFTString = 4,                       OFTStringList = 5,       OFTWideString = 6,     OFTWideStringList = 7,                        OFTBinary = 8,                                   OFTDate = 9,                                   OFTTime = 10,                          OFTDateTime = 11
    00273 } OGRFieldType;
    00274
    00279 typedef enum
    00280 {
    00281     OJUndefined = 0,
    00282     OJLeft = 1,
    00283     OJRight = 2
    00284 } OGRJustification;
    00285
    00286 #define OGRNullFID            -1
    00287 #define OGRUnsetMarker        -21121
    00288
    00289 /************************************************************************/
    00290 /*                               OGRField                               */
    00291 /************************************************************************/
    00292
    00297 typedef union {
    00298     int         Integer;
    00299     double      Real;
    00300     char       *String;
    00301     /* wchar    *WideString; */
    00302
    00303     struct {
    00304         int     nCount;
    00305         int     *paList;
    00306     } IntegerList;
    00307
    00308     struct {
    00309         int     nCount;
    00310         double  *paList;
    00311     } RealList;
    00312
    00313     struct {
    00314         int     nCount;
    00315         char    **paList;
    00316     } StringList;
    00317
    00318     /*
    00319     union {
    00320         int   nCount;
    00321         wchar *paList;
    00322     } WideStringList;
    00323     */
    00324
    00325     struct {
    00326         int     nCount;
    00327         GByte   *paData;
    00328     } Binary;
    00329
    00330     struct {
    00331         int     nMarker1;
    00332         int     nMarker2;
    00333     } Set;
    00334
    00335     struct {
    00336         GInt16  Year;
    00337         GByte   Month;
    00338         GByte   Day;
    00339         GByte   Hour;
    00340         GByte   Minute;
    00341         GByte   Second;
    00342         GByte   TZFlag; /* 0=unknown, 1=localtime(ambiguous),
    00343                            100=GMT, 104=GMT+1, 80=GMT-5, etc */
    00344     } Date;
    00345 } OGRField;
    00346
    00347 int CPL_DLL OGRParseDate( const char *pszInput, OGRField *psOutput,
    00348                           int nOptions );
    00349
    00350 /* -------------------------------------------------------------------- */
    00351 /*      Constants from ogrsf_frmts.h for capabilities.                  */
    00352 /* -------------------------------------------------------------------- */
    00353 #define OLCRandomRead          "RandomRead"
    00354 #define OLCSequentialWrite     "SequentialWrite"
    00355 #define OLCRandomWrite         "RandomWrite"
    00356 #define OLCFastSpatialFilter   "FastSpatialFilter"
    00357 #define OLCFastFeatureCount    "FastFeatureCount"
    00358 #define OLCFastGetExtent       "FastGetExtent"
    00359 #define OLCCreateField         "CreateField"
    00360 #define OLCTransactions        "Transactions"
    00361 #define OLCDeleteFeature       "DeleteFeature"
    00362 #define OLCFastSetNextByIndex  "FastSetNextByIndex"
    00363
    00364 #define ODsCCreateLayer        "CreateLayer"
    00365 #define ODsCDeleteLayer        "DeleteLayer"
    00366
    00367 #define ODrCCreateDataSource   "CreateDataSource"
    00368 #define ODrCDeleteDataSource   "DeleteDataSource"
    00369
    00370 CPL_C_END
    00371
    00372 #endif /* ndef _OGR_CORE_H_INCLUDED */
    00373

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