OGR
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00001 /****************************************************************************** 00002 * $Id: ogr_spatialref.h 15742 2008-11-15 22:56:31Z rouault $ 00003 * 00004 * Project: OpenGIS Simple Features Reference Implementation 00005 * Purpose: Classes for manipulating spatial reference systems in a 00006 * platform non-specific manner. 00007 * Author: Frank Warmerdam, warmerdam@pobox.com 00008 * 00009 ****************************************************************************** 00010 * Copyright (c) 1999, Les Technologies SoftMap Inc. 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 #ifndef _OGR_SPATIALREF_H_INCLUDED 00032 #define _OGR_SPATIALREF_H_INCLUDED 00033 00034 #include "ogr_srs_api.h" 00035 00042 /************************************************************************/ 00043 /* OGR_SRSNode */ 00044 /************************************************************************/ 00045 00059 class CPL_DLL OGR_SRSNode 00060 { 00061 char *pszValue; 00062 00063 OGR_SRSNode **papoChildNodes; 00064 OGR_SRSNode *poParent; 00065 00066 int nChildren; 00067 00068 void ClearChildren(); 00069 int NeedsQuoting() const; 00070 00071 public: 00072 OGR_SRSNode(const char * = NULL); 00073 ~OGR_SRSNode(); 00074 00075 int IsLeafNode() const { return nChildren == 0; } 00076 00077 int GetChildCount() const { return nChildren; } 00078 OGR_SRSNode *GetChild( int ); 00079 const OGR_SRSNode *GetChild( int ) const; 00080 00081 OGR_SRSNode *GetNode( const char * ); 00082 const OGR_SRSNode *GetNode( const char * ) const; 00083 00084 void InsertChild( OGR_SRSNode *, int ); 00085 void AddChild( OGR_SRSNode * ); 00086 int FindChild( const char * ) const; 00087 void DestroyChild( int ); 00088 void StripNodes( const char * ); 00089 00090 const char *GetValue() const { return pszValue; } 00091 void SetValue( const char * ); 00092 00093 void MakeValueSafe(); 00094 OGRErr FixupOrdering(); 00095 00096 OGR_SRSNode *Clone() const; 00097 00098 OGRErr importFromWkt( char ** ); 00099 OGRErr exportToWkt( char ** ) const; 00100 OGRErr exportToPrettyWkt( char **, int = 1) const; 00101 00102 OGRErr applyRemapper( const char *pszNode, 00103 char **papszSrcValues, 00104 char **papszDstValues, 00105 int nStepSize = 1, 00106 int bChildOfHit = FALSE ); 00107 }; 00108 00109 /************************************************************************/ 00110 /* OGRSpatialReference */ 00111 /************************************************************************/ 00112 00127 class CPL_DLL OGRSpatialReference 00128 { 00129 double dfFromGreenwich; 00130 double dfToMeter; 00131 double dfToDegrees; 00132 00133 OGR_SRSNode *poRoot; 00134 00135 int nRefCount; 00136 int bNormInfoSet; 00137 00138 OGRErr ValidateProjection(); 00139 int IsAliasFor( const char *, const char * ); 00140 void GetNormInfo() const; 00141 00142 public: 00143 OGRSpatialReference(const OGRSpatialReference&); 00144 OGRSpatialReference(const char * = NULL); 00145 00146 virtual ~OGRSpatialReference(); 00147 00148 OGRSpatialReference &operator=(const OGRSpatialReference&); 00149 00150 int Reference(); 00151 int Dereference(); 00152 int GetReferenceCount() const { return nRefCount; } 00153 void Release(); 00154 00155 OGRSpatialReference *Clone() const; 00156 OGRSpatialReference *CloneGeogCS() const; 00157 00158 OGRErr exportToWkt( char ** ) const; 00159 OGRErr exportToPrettyWkt( char **, int = FALSE) const; 00160 OGRErr exportToProj4( char ** ) const; 00161 OGRErr exportToPCI( char **, char **, double ** ) const; 00162 OGRErr exportToUSGS( long *, long *, double **, long * ) const; 00163 OGRErr exportToXML( char **, const char * = NULL ) const; 00164 OGRErr exportToPanorama( long *, long *, long *, long *, 00165 double * ) const; 00166 OGRErr exportToERM( char *pszProj, char *pszDatum, char *pszUnits ); 00167 OGRErr exportToMICoordSys( char ** ) const; 00168 00169 OGRErr importFromWkt( char ** ); 00170 OGRErr importFromProj4( const char * ); 00171 OGRErr importFromEPSG( int ); 00172 OGRErr importFromEPSGA( int ); 00173 OGRErr importFromESRI( char ** ); 00174 OGRErr importFromPCI( const char *, const char * = NULL, 00175 double * = NULL ); 00176 OGRErr importFromUSGS( long iProjSys, long iZone, 00177 double *padfPrjParams, 00178 long iDatum, int bAnglesInPackedDMSFormat = TRUE ); 00179 OGRErr importFromPanorama( long, long, long, double* ); 00180 OGRErr importFromWMSAUTO( const char *pszAutoDef ); 00181 OGRErr importFromXML( const char * ); 00182 OGRErr importFromDict( const char *pszDict, const char *pszCode ); 00183 OGRErr importFromURN( const char * ); 00184 OGRErr importFromERM( const char *pszProj, const char *pszDatum, 00185 const char *pszUnits ); 00186 OGRErr importFromUrl( const char * ); 00187 OGRErr importFromMICoordSys( const char * ); 00188 00189 OGRErr morphToESRI(); 00190 OGRErr morphFromESRI(); 00191 00192 OGRErr Validate(); 00193 OGRErr StripCTParms( OGR_SRSNode * = NULL ); 00194 OGRErr FixupOrdering(); 00195 OGRErr Fixup(); 00196 00197 int EPSGTreatsAsLatLong(); 00198 const char *GetAxis( const char *pszTargetKey, int iAxis, 00199 OGRAxisOrientation *peOrientation ); 00200 OGRErr SetAxes( const char *pszTargetKey, 00201 const char *pszXAxisName, 00202 OGRAxisOrientation eXAxisOrientation, 00203 const char *pszYAxisName, 00204 OGRAxisOrientation eYAxisOrientation ); 00205 00206 // Machinary for accessing parse nodes 00207 OGR_SRSNode *GetRoot() { return poRoot; } 00208 const OGR_SRSNode *GetRoot() const { return poRoot; } 00209 void SetRoot( OGR_SRSNode * ); 00210 00211 OGR_SRSNode *GetAttrNode(const char *); 00212 const OGR_SRSNode *GetAttrNode(const char *) const; 00213 const char *GetAttrValue(const char *, int = 0) const; 00214 00215 OGRErr SetNode( const char *, const char * ); 00216 OGRErr SetNode( const char *, double ); 00217 00218 OGRErr SetLinearUnitsAndUpdateParameters( const char *pszName, 00219 double dfInMeters ); 00220 OGRErr SetLinearUnits( const char *pszName, double dfInMeters ); 00221 double GetLinearUnits( char ** = NULL ) const; 00222 00223 OGRErr SetAngularUnits( const char *pszName, double dfInRadians ); 00224 double GetAngularUnits( char ** = NULL ) const; 00225 00226 double GetPrimeMeridian( char ** = NULL ) const; 00227 00228 int IsGeographic() const; 00229 int IsProjected() const; 00230 int IsLocal() const; 00231 int IsSameGeogCS( const OGRSpatialReference * ) const; 00232 int IsSame( const OGRSpatialReference * ) const; 00233 00234 void Clear(); 00235 OGRErr SetLocalCS( const char * ); 00236 OGRErr SetProjCS( const char * ); 00237 OGRErr SetProjection( const char * ); 00238 OGRErr SetGeogCS( const char * pszGeogName, 00239 const char * pszDatumName, 00240 const char * pszEllipsoidName, 00241 double dfSemiMajor, double dfInvFlattening, 00242 const char * pszPMName = NULL, 00243 double dfPMOffset = 0.0, 00244 const char * pszUnits = NULL, 00245 double dfConvertToRadians = 0.0 ); 00246 OGRErr SetWellKnownGeogCS( const char * ); 00247 OGRErr CopyGeogCSFrom( const OGRSpatialReference * poSrcSRS ); 00248 00249 OGRErr SetFromUserInput( const char * ); 00250 00251 OGRErr SetTOWGS84( double, double, double, 00252 double = 0.0, double = 0.0, double = 0.0, 00253 double = 0.0 ); 00254 OGRErr GetTOWGS84( double *padfCoef, int nCoeff = 7 ) const; 00255 00256 double GetSemiMajor( OGRErr * = NULL ) const; 00257 double GetSemiMinor( OGRErr * = NULL ) const; 00258 double GetInvFlattening( OGRErr * = NULL ) const; 00259 00260 OGRErr SetAuthority( const char * pszTargetKey, 00261 const char * pszAuthority, 00262 int nCode ); 00263 00264 OGRErr AutoIdentifyEPSG(); 00265 int GetEPSGGeogCS(); 00266 00267 const char *GetAuthorityCode( const char * pszTargetKey ) const; 00268 const char *GetAuthorityName( const char * pszTargetKey ) const; 00269 00270 const char *GetExtension( const char *pszTargetKey, 00271 const char *pszName, 00272 const char *pszDefault = NULL ) const; 00273 OGRErr SetExtension( const char *pszTargetKey, 00274 const char *pszName, 00275 const char *pszValue ); 00276 00277 int FindProjParm( const char *pszParameter, 00278 const OGR_SRSNode *poPROJCS=NULL ) const; 00279 OGRErr SetProjParm( const char *, double ); 00280 double GetProjParm( const char *, double =0.0, OGRErr* = NULL ) const; 00281 00282 OGRErr SetNormProjParm( const char *, double ); 00283 double GetNormProjParm( const char *, double=0.0, OGRErr* =NULL)const; 00284 00285 static int IsAngularParameter( const char * ); 00286 static int IsLongitudeParameter( const char * ); 00287 static int IsLinearParameter( const char * ); 00288 00290 OGRErr SetACEA( double dfStdP1, double dfStdP2, 00291 double dfCenterLat, double dfCenterLong, 00292 double dfFalseEasting, double dfFalseNorthing ); 00293 00295 OGRErr SetAE( double dfCenterLat, double dfCenterLong, 00296 double dfFalseEasting, double dfFalseNorthing ); 00297 00299 OGRErr SetBonne( double dfStdP1, double dfCentralMeridian, 00300 double dfFalseEasting, double dfFalseNorthing ); 00301 00303 OGRErr SetCEA( double dfStdP1, double dfCentralMeridian, 00304 double dfFalseEasting, double dfFalseNorthing ); 00305 00307 OGRErr SetCS( double dfCenterLat, double dfCenterLong, 00308 double dfFalseEasting, double dfFalseNorthing ); 00309 00311 OGRErr SetEC( double dfStdP1, double dfStdP2, 00312 double dfCenterLat, double dfCenterLong, 00313 double dfFalseEasting, double dfFalseNorthing ); 00314 00316 OGRErr SetEckert( int nVariation, double dfCentralMeridian, 00317 double dfFalseEasting, double dfFalseNorthing ); 00318 00319 OGRErr SetEckertIV( double dfCentralMeridian, 00320 double dfFalseEasting, double dfFalseNorthing ); 00321 00322 OGRErr SetEckertVI( double dfCentralMeridian, 00323 double dfFalseEasting, double dfFalseNorthing ); 00324 00326 OGRErr SetEquirectangular(double dfCenterLat, double dfCenterLong, 00327 double dfFalseEasting, double dfFalseNorthing ); 00329 OGRErr SetEquirectangular2( double dfCenterLat, double dfCenterLong, 00330 double dfPseudoStdParallel1, 00331 double dfFalseEasting, double dfFalseNorthing ); 00332 00334 OGRErr SetGEOS( double dfCentralMeridian, double dfSatelliteHeight, 00335 double dfFalseEasting, double dfFalseNorthing ); 00336 00338 OGRErr SetGH( double dfCentralMeridian, 00339 double dfFalseEasting, double dfFalseNorthing ); 00340 00342 OGRErr SetGS( double dfCentralMeridian, 00343 double dfFalseEasting, double dfFalseNorthing ); 00344 00346 OGRErr SetGaussSchreiberTMercator(double dfCenterLat, double dfCenterLong, 00347 double dfScale, 00348 double dfFalseEasting, double dfFalseNorthing ); 00349 00351 OGRErr SetGnomonic(double dfCenterLat, double dfCenterLong, 00352 double dfFalseEasting, double dfFalseNorthing ); 00353 00354 OGRErr SetHOM( double dfCenterLat, double dfCenterLong, 00355 double dfAzimuth, double dfRectToSkew, 00356 double dfScale, 00357 double dfFalseEasting, double dfFalseNorthing ); 00358 00359 OGRErr SetHOM2PNO( double dfCenterLat, 00360 double dfLat1, double dfLong1, 00361 double dfLat2, double dfLong2, 00362 double dfScale, 00363 double dfFalseEasting, double dfFalseNorthing ); 00364 00366 OGRErr SetIWMPolyconic( double dfLat1, double dfLat2, 00367 double dfCenterLong, 00368 double dfFalseEasting, 00369 double dfFalseNorthing ); 00370 00372 OGRErr SetKrovak( double dfCenterLat, double dfCenterLong, 00373 double dfAzimuth, double dfPseudoStdParallelLat, 00374 double dfScale, 00375 double dfFalseEasting, double dfFalseNorthing ); 00376 00378 OGRErr SetLAEA( double dfCenterLat, double dfCenterLong, 00379 double dfFalseEasting, double dfFalseNorthing ); 00380 00382 OGRErr SetLCC( double dfStdP1, double dfStdP2, 00383 double dfCenterLat, double dfCenterLong, 00384 double dfFalseEasting, double dfFalseNorthing ); 00385 00387 OGRErr SetLCC1SP( double dfCenterLat, double dfCenterLong, 00388 double dfScale, 00389 double dfFalseEasting, double dfFalseNorthing ); 00390 00392 OGRErr SetLCCB( double dfStdP1, double dfStdP2, 00393 double dfCenterLat, double dfCenterLong, 00394 double dfFalseEasting, double dfFalseNorthing ); 00395 00397 OGRErr SetMC( double dfCenterLat, double dfCenterLong, 00398 double dfFalseEasting, double dfFalseNorthing ); 00399 00401 OGRErr SetMercator( double dfCenterLat, double dfCenterLong, 00402 double dfScale, 00403 double dfFalseEasting, double dfFalseNorthing ); 00404 00405 OGRErr SetMercator2SP( double dfStdP1, 00406 double dfCenterLat, double dfCenterLong, 00407 double dfFalseEasting, double dfFalseNorthing ); 00408 00410 OGRErr SetMollweide( double dfCentralMeridian, 00411 double dfFalseEasting, double dfFalseNorthing ); 00412 00414 OGRErr SetNZMG( double dfCenterLat, double dfCenterLong, 00415 double dfFalseEasting, double dfFalseNorthing ); 00416 00418 OGRErr SetOS( double dfOriginLat, double dfCMeridian, 00419 double dfScale, 00420 double dfFalseEasting,double dfFalseNorthing); 00421 00423 OGRErr SetOrthographic( double dfCenterLat, double dfCenterLong, 00424 double dfFalseEasting,double dfFalseNorthing); 00425 00427 OGRErr SetPolyconic( double dfCenterLat, double dfCenterLong, 00428 double dfFalseEasting, double dfFalseNorthing ); 00429 00431 OGRErr SetPS( double dfCenterLat, double dfCenterLong, 00432 double dfScale, 00433 double dfFalseEasting, double dfFalseNorthing); 00434 00436 OGRErr SetRobinson( double dfCenterLong, 00437 double dfFalseEasting, double dfFalseNorthing ); 00438 00440 OGRErr SetSinusoidal( double dfCenterLong, 00441 double dfFalseEasting, double dfFalseNorthing ); 00442 00444 OGRErr SetStereographic( double dfCenterLat, double dfCenterLong, 00445 double dfScale, 00446 double dfFalseEasting,double dfFalseNorthing); 00447 00449 OGRErr SetSOC( double dfLatitudeOfOrigin, double dfCentralMeridian, 00450 double dfFalseEasting, double dfFalseNorthing ); 00451 00453 OGRErr SetTM( double dfCenterLat, double dfCenterLong, 00454 double dfScale, 00455 double dfFalseEasting, double dfFalseNorthing ); 00456 00458 OGRErr SetTMVariant( const char *pszVariantName, 00459 double dfCenterLat, double dfCenterLong, 00460 double dfScale, 00461 double dfFalseEasting, double dfFalseNorthing ); 00462 00464 OGRErr SetTMG( double dfCenterLat, double dfCenterLong, 00465 double dfFalseEasting, double dfFalseNorthing ); 00466 00468 OGRErr SetTMSO( double dfCenterLat, double dfCenterLong, 00469 double dfScale, 00470 double dfFalseEasting, double dfFalseNorthing ); 00471 00473 OGRErr SetTPED( double dfLat1, double dfLong1, 00474 double dfLat2, double dfLong2, 00475 double dfFalseEasting, double dfFalseNorthing ); 00476 00478 OGRErr SetVDG( double dfCenterLong, 00479 double dfFalseEasting, double dfFalseNorthing ); 00480 00482 OGRErr SetUTM( int nZone, int bNorth = TRUE ); 00483 int GetUTMZone( int *pbNorth = NULL ) const; 00484 00486 OGRErr SetWagner( int nVariation, double dfCenterLat, 00487 double dfFalseEasting, double dfFalseNorthing ); 00488 00490 OGRErr SetStatePlane( int nZone, int bNAD83 = TRUE, 00491 const char *pszOverrideUnitName = NULL, 00492 double dfOverrideUnit = 0.0 ); 00493 }; 00494 00495 /************************************************************************/ 00496 /* OGRCoordinateTransformation */ 00497 /* */ 00498 /* This is really just used as a base class for a private */ 00499 /* implementation. */ 00500 /************************************************************************/ 00501 00508 class CPL_DLL OGRCoordinateTransformation 00509 { 00510 public: 00511 virtual ~OGRCoordinateTransformation() {} 00512 00513 // From CT_CoordinateTransformation 00514 00516 virtual OGRSpatialReference *GetSourceCS() = 0; 00517 00519 virtual OGRSpatialReference *GetTargetCS() = 0; 00520 00521 // From CT_MathTransform 00522 00538 virtual int Transform( int nCount, 00539 double *x, double *y, double *z = NULL ) = 0; 00540 00556 virtual int TransformEx( int nCount, 00557 double *x, double *y, double *z = NULL, 00558 int *pabSuccess = NULL ) = 0; 00559 00560 }; 00561 00562 OGRCoordinateTransformation CPL_DLL * 00563 OGRCreateCoordinateTransformation( OGRSpatialReference *poSource, 00564 OGRSpatialReference *poTarget ); 00565 00566 #endif /* ndef _OGR_SPATIALREF_H_INCLUDED */