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Macros | Typedefs | Enumerations | Functions
ogr_srs_api.h File Reference

C spatial reference system services and defines. More...

`#include "ogr_core.h"`

Go to the source code of this file.

## Macros
#define | SRS_WKT_WGS84 "GEOGCS[\"WGS 84\",DATUM[\"WGS_1984\",SPHEROID[\"WGS 84\",6378137,298.257223563,AUTHORITY[\"EPSG\",\"7030\"]],AUTHORITY[\"EPSG\",\"6326\"]],PRIMEM[\"Greenwich\",0,AUTHORITY[\"EPSG\",\"8901\"]],UNIT[\"degree\",0.0174532925199433,AUTHORITY[\"EPSG\",\"9122\"]],AUTHORITY[\"EPSG\",\"4326\"]]"
| WGS 84 geodetic (long/lat) WKT / EPSG:4326 with long,lat ordering.
#define | SRS_PT_ALBERS_CONIC_EQUAL_AREA "Albers_Conic_Equal_Area"
| Albers_Conic_Equal_Area projection.
#define | SRS_PT_AZIMUTHAL_EQUIDISTANT "Azimuthal_Equidistant"
| Azimuthal_Equidistant projection.
#define | SRS_PT_CASSINI_SOLDNER "Cassini_Soldner"
| Cassini_Soldner projection.
#define | SRS_PT_CYLINDRICAL_EQUAL_AREA "Cylindrical_Equal_Area"
| Cylindrical_Equal_Area projection.
#define | SRS_PT_BONNE "Bonne"
| Cylindrical_Equal_Area projection.
#define | SRS_PT_ECKERT_I "Eckert_I"
| Eckert_I projection.
#define | SRS_PT_ECKERT_II "Eckert_II"
| Eckert_II projection.
#define | SRS_PT_ECKERT_III "Eckert_III"
| Eckert_III projection.
#define | SRS_PT_ECKERT_IV "Eckert_IV"
| Eckert_IV projection.
#define | SRS_PT_ECKERT_V "Eckert_V"
| Eckert_V projection.
#define | SRS_PT_ECKERT_VI "Eckert_VI"
| Eckert_VI projection.
#define | SRS_PT_EQUIDISTANT_CONIC "Equidistant_Conic"
| Equidistant_Conic projection.
#define | SRS_PT_EQUIRECTANGULAR "Equirectangular"
| Equirectangular projection.
#define | SRS_PT_GALL_STEREOGRAPHIC "Gall_Stereographic"
| Gall_Stereographic projection.
#define | SRS_PT_GAUSSSCHREIBERTMERCATOR "Gauss_Schreiber_Transverse_Mercator"
| Gauss_Schreiber_Transverse_Mercator projection.
#define | SRS_PT_GEOSTATIONARY_SATELLITE "Geostationary_Satellite"
| Geostationary_Satellite projection.
#define | SRS_PT_GOODE_HOMOLOSINE "Goode_Homolosine"
| Goode_Homolosine projection.
#define | SRS_PT_IGH "Interrupted_Goode_Homolosine"
| Interrupted_Goode_Homolosine projection.
#define | SRS_PT_GNOMONIC "Gnomonic"
| Gnomonic projection.
#define | SRS_PT_HOTINE_OBLIQUE_MERCATOR_AZIMUTH_CENTER "Hotine_Oblique_Mercator_Azimuth_Center"
| Hotine_Oblique_Mercator_Azimuth_Center projection.
#define | SRS_PT_HOTINE_OBLIQUE_MERCATOR "Hotine_Oblique_Mercator"
| Hotine_Oblique_Mercator projection.
#define | SRS_PT_HOTINE_OBLIQUE_MERCATOR_TWO_POINT_NATURAL_ORIGIN "Hotine_Oblique_Mercator_Two_Point_Natural_Origin"
| Hotine_Oblique_Mercator_Two_Point_Natural_Origin projection.
#define | SRS_PT_LABORDE_OBLIQUE_MERCATOR "Laborde_Oblique_Mercator"
| Laborde_Oblique_Mercator projection.
#define | SRS_PT_LAMBERT_CONFORMAL_CONIC_1SP "Lambert_Conformal_Conic_1SP"
| Lambert_Conformal_Conic_1SP projection.
#define | SRS_PT_LAMBERT_CONFORMAL_CONIC_2SP "Lambert_Conformal_Conic_2SP"
| Lambert_Conformal_Conic_2SP projection.
#define | SRS_PT_LAMBERT_CONFORMAL_CONIC_2SP_BELGIUM "Lambert_Conformal_Conic_2SP_Belgium"
| Lambert_Conformal_Conic_2SP_Belgium projection.
#define | SRS_PT_LAMBERT_AZIMUTHAL_EQUAL_AREA "Lambert_Azimuthal_Equal_Area"
| Lambert_Azimuthal_Equal_Area projection.
#define | SRS_PT_MERCATOR_1SP "Mercator_1SP"
| Mercator_1SP projection.
#define | SRS_PT_MERCATOR_2SP "Mercator_2SP"
| Mercator_2SP projection.
#define | SRS_PT_MERCATOR_AUXILIARY_SPHERE "Mercator_Auxiliary_Sphere"
| Mercator_Auxiliary_Sphere is used used by ESRI to mean EPSG:3875.
#define | SRS_PT_MILLER_CYLINDRICAL "Miller_Cylindrical"
| Miller_Cylindrical projection.
#define | SRS_PT_MOLLWEIDE "Mollweide"
| Mollweide projection.
#define | SRS_PT_NEW_ZEALAND_MAP_GRID "New_Zealand_Map_Grid"
| New_Zealand_Map_Grid projection.
#define | SRS_PT_OBLIQUE_STEREOGRAPHIC "Oblique_Stereographic"
| Oblique_Stereographic projection.
#define | SRS_PT_ORTHOGRAPHIC "Orthographic"
| Orthographic projection.
#define | SRS_PT_POLAR_STEREOGRAPHIC "Polar_Stereographic"
| Polar_Stereographic projection.
#define | SRS_PT_POLYCONIC "Polyconic"
| Polyconic projection.
#define | SRS_PT_ROBINSON "Robinson"
| Robinson projection.
#define | SRS_PT_SINUSOIDAL "Sinusoidal"
| Sinusoidal projection.
#define | SRS_PT_STEREOGRAPHIC "Stereographic"
| Stereographic projection.
#define | SRS_PT_SWISS_OBLIQUE_CYLINDRICAL "Swiss_Oblique_Cylindrical"
| Swiss_Oblique_Cylindrical projection.
#define | SRS_PT_TRANSVERSE_MERCATOR "Transverse_Mercator"
| Transverse_Mercator projection.
#define | SRS_PT_TRANSVERSE_MERCATOR_SOUTH_ORIENTED "Transverse_Mercator_South_Orientated"
| Transverse_Mercator_South_Orientated projection.
#define | SRS_PT_TRANSVERSE_MERCATOR_MI_21 "Transverse_Mercator_MapInfo_21"
| Transverse_Mercator_MapInfo_21 projection.
#define | SRS_PT_TRANSVERSE_MERCATOR_MI_22 "Transverse_Mercator_MapInfo_22"
| Transverse_Mercator_MapInfo_22 projection.
#define | SRS_PT_TRANSVERSE_MERCATOR_MI_23 "Transverse_Mercator_MapInfo_23"
| Transverse_Mercator_MapInfo_23 projection.
#define | SRS_PT_TRANSVERSE_MERCATOR_MI_24 "Transverse_Mercator_MapInfo_24"
| Transverse_Mercator_MapInfo_24 projection.
#define | SRS_PT_TRANSVERSE_MERCATOR_MI_25 "Transverse_Mercator_MapInfo_25"
| Transverse_Mercator_MapInfo_25 projection.
#define | SRS_PT_TUNISIA_MINING_GRID "Tunisia_Mining_Grid"
| Tunisia_Mining_Grid projection.
#define | SRS_PT_TWO_POINT_EQUIDISTANT "Two_Point_Equidistant"
| Two_Point_Equidistant projection.
#define | SRS_PT_VANDERGRINTEN "VanDerGrinten"
| VanDerGrinten projection.
#define | SRS_PT_KROVAK "Krovak"
| Krovak projection.
#define | SRS_PT_IMW_POLYCONIC "International_Map_of_the_World_Polyconic"
| International_Map_of_the_World_Polyconic projection.
#define | SRS_PT_WAGNER_I "Wagner_I"
| Wagner_I projection.
#define | SRS_PT_WAGNER_II "Wagner_II"
| Wagner_II projection.
#define | SRS_PT_WAGNER_III "Wagner_III"
| Wagner_III projection.
#define | SRS_PT_WAGNER_IV "Wagner_IV"
| Wagner_IV projection.
#define | SRS_PT_WAGNER_V "Wagner_V"
| Wagner_V projection.
#define | SRS_PT_WAGNER_VI "Wagner_VI"
| Wagner_VI projection.
#define | SRS_PT_WAGNER_VII "Wagner_VII"
| Wagner_VII projection.
#define | SRS_PT_QSC "Quadrilateralized_Spherical_Cube"
| Quadrilateralized_Spherical_Cube projection.
#define | SRS_PT_AITOFF "Aitoff"
| Aitoff projection.
#define | SRS_PT_WINKEL_I "Winkel_I"
| Winkel_I projection.
#define | SRS_PT_WINKEL_II "Winkel_II"
| Winkel_II projection.
#define | SRS_PT_WINKEL_TRIPEL "Winkel_Tripel"
| Winkel_Tripel projection.
#define | SRS_PT_CRASTER_PARABOLIC "Craster_Parabolic"
| Craster_Parabolic projection.
#define | SRS_PT_LOXIMUTHAL "Loximuthal"
| Loximuthal projection.
#define | SRS_PT_QUARTIC_AUTHALIC "Quartic_Authalic"
| Quartic_Authalic projection.
#define | SRS_PT_SCH "Spherical_Cross_Track_Height"
| Spherical_Cross_Track_Height projection.
#define | SRS_PP_CENTRAL_MERIDIAN "central_meridian"
| central_meridian projection parameter
#define | SRS_PP_SCALE_FACTOR "scale_factor"
| scale_factor projection parameter
#define | SRS_PP_STANDARD_PARALLEL_1 "standard_parallel_1"
| standard_parallel_1 projection parameter
#define | SRS_PP_STANDARD_PARALLEL_2 "standard_parallel_2"
| standard_parallel_2 projection parameter
#define | SRS_PP_PSEUDO_STD_PARALLEL_1 "pseudo_standard_parallel_1"
| pseudo_standard_parallel_1 projection parameter
#define | SRS_PP_LONGITUDE_OF_CENTER "longitude_of_center"
| longitude_of_center projection parameter
#define | SRS_PP_LATITUDE_OF_CENTER "latitude_of_center"
| latitude_of_center projection parameter
#define | SRS_PP_LONGITUDE_OF_ORIGIN "longitude_of_origin"
| longitude_of_origin projection parameter
#define | SRS_PP_LATITUDE_OF_ORIGIN "latitude_of_origin"
| latitude_of_origin projection parameter
#define | SRS_PP_FALSE_EASTING "false_easting"
| false_easting projection parameter
#define | SRS_PP_FALSE_NORTHING "false_northing"
| false_northing projection parameter
#define | SRS_PP_AZIMUTH "azimuth"
| azimuth projection parameter
#define | SRS_PP_LONGITUDE_OF_POINT_1 "longitude_of_point_1"
| longitude_of_point_1 projection parameter
#define | SRS_PP_LATITUDE_OF_POINT_1 "latitude_of_point_1"
| latitude_of_point_1 projection parameter
#define | SRS_PP_LONGITUDE_OF_POINT_2 "longitude_of_point_2"
| longitude_of_point_2 projection parameter
#define | SRS_PP_LATITUDE_OF_POINT_2 "latitude_of_point_2"
| latitude_of_point_2 projection parameter
#define | SRS_PP_LONGITUDE_OF_POINT_3 "longitude_of_point_3"
| longitude_of_point_3 projection parameter
#define | SRS_PP_LATITUDE_OF_POINT_3 "latitude_of_point_3"
| latitude_of_point_3 projection parameter
#define | SRS_PP_RECTIFIED_GRID_ANGLE "rectified_grid_angle"
| rectified_grid_angle projection parameter
#define | SRS_PP_LANDSAT_NUMBER "landsat_number"
| landsat_number projection parameter
#define | SRS_PP_PATH_NUMBER "path_number"
| path_number projection parameter
#define | SRS_PP_PERSPECTIVE_POINT_HEIGHT "perspective_point_height"
| perspective_point_height projection parameter
#define | SRS_PP_SATELLITE_HEIGHT "satellite_height"
| satellite_height projection parameter
#define | SRS_PP_FIPSZONE "fipszone"
| fipszone projection parameter
#define | SRS_PP_ZONE "zone"
| zone projection parameter
#define | SRS_PP_LATITUDE_OF_1ST_POINT "Latitude_Of_1st_Point"
| Latitude_Of_1st_Point projection parameter.
#define | SRS_PP_LONGITUDE_OF_1ST_POINT "Longitude_Of_1st_Point"
| Longitude_Of_1st_Point projection parameter.
#define | SRS_PP_LATITUDE_OF_2ND_POINT "Latitude_Of_2nd_Point"
| Latitude_Of_2nd_Point projection parameter.
#define | SRS_PP_LONGITUDE_OF_2ND_POINT "Longitude_Of_2nd_Point"
| Longitude_Of_2nd_Point projection parameter.
#define | SRS_PP_PEG_POINT_LATITUDE "peg_point_latitude"
| peg_point_latitude projection parameter
#define | SRS_PP_PEG_POINT_LONGITUDE "peg_point_longitude"
| peg_point_longitude projection parameter
#define | SRS_PP_PEG_POINT_HEADING "peg_point_heading"
| peg_point_heading projection parameter
#define | SRS_PP_PEG_POINT_HEIGHT "peg_point_height"
| peg_point_height projection parameter
#define | SRS_UL_METER "Meter"
| Linear unit Meter.
#define | SRS_UL_FOOT "Foot (International)" /* or just "FOOT"? */
| Linear unit Foot (International)
#define | SRS_UL_FOOT_CONV "0.3048"
| Linear unit Foot (International) conversion factor to meter.
#define | SRS_UL_US_FOOT "Foot_US" /* or "US survey foot" from EPSG */
| Linear unit Foot.
#define | SRS_UL_US_FOOT_CONV "0.3048006096012192"
| Linear unit Foot conversion factor to meter.
#define | SRS_UL_NAUTICAL_MILE "Nautical Mile"
| Linear unit Nautical Mile.
#define | SRS_UL_NAUTICAL_MILE_CONV "1852.0"
| Linear unit Nautical Mile conversion factor to meter.
#define | SRS_UL_LINK "Link" /* Based on US Foot */
| Linear unit Link.
#define | SRS_UL_LINK_CONV "0.20116684023368047"
| Linear unit Link conversion factor to meter.
#define | SRS_UL_CHAIN "Chain" /* based on US Foot */
| Linear unit Chain.
#define | SRS_UL_CHAIN_CONV "20.116684023368047"
| Linear unit Chain conversion factor to meter.
#define | SRS_UL_ROD "Rod" /* based on US Foot */
| Linear unit Rod.
#define | SRS_UL_ROD_CONV "5.02921005842012"
| Linear unit Rod conversion factor to meter.
#define | SRS_UL_LINK_Clarke "Link_Clarke"
| Linear unit Link_Clarke.
#define | SRS_UL_LINK_Clarke_CONV "0.2011661949"
| Linear unit Link_Clarke conversion factor to meter.
#define | SRS_UL_KILOMETER "Kilometer"
| Linear unit Kilometer.
#define | SRS_UL_KILOMETER_CONV "1000."
| Linear unit Kilometer conversion factor to meter.
#define | SRS_UL_DECIMETER "Decimeter"
| Linear unit Decimeter.
#define | SRS_UL_DECIMETER_CONV "0.1"
| Linear unit Decimeter conversion factor to meter.
#define | SRS_UL_CENTIMETER "Centimeter"
| Linear unit Decimeter.
#define | SRS_UL_CENTIMETER_CONV "0.01"
| Linear unit Decimeter conversion factor to meter.
#define | SRS_UL_MILLIMETER "Millimeter"
| Linear unit Millimeter.
#define | SRS_UL_MILLIMETER_CONV "0.001"
| Linear unit Millimeter conversion factor to meter.
#define | SRS_UL_INTL_NAUT_MILE "Nautical_Mile_International"
| Linear unit Nautical_Mile_International.
#define | SRS_UL_INTL_NAUT_MILE_CONV "1852.0"
| Linear unit Nautical_Mile_International conversion factor to meter.
#define | SRS_UL_INTL_INCH "Inch_International"
| Linear unit Inch_International.
#define | SRS_UL_INTL_INCH_CONV "0.0254"
| Linear unit Inch_International conversion factor to meter.
#define | SRS_UL_INTL_FOOT "Foot_International"
| Linear unit Foot_International.
#define | SRS_UL_INTL_FOOT_CONV "0.3048"
| Linear unit Foot_International conversion factor to meter.
#define | SRS_UL_INTL_YARD "Yard_International"
| Linear unit Yard_International.
#define | SRS_UL_INTL_YARD_CONV "0.9144"
| Linear unit Yard_International conversion factor to meter.
#define | SRS_UL_INTL_STAT_MILE "Statute_Mile_International"
| Linear unit Statute_Mile_International.
#define | SRS_UL_INTL_STAT_MILE_CONV "1609.344"
| Linear unit Statute_Mile_Internationalconversion factor to meter.
#define | SRS_UL_INTL_FATHOM "Fathom_International"
| Linear unit Fathom_International.
#define | SRS_UL_INTL_FATHOM_CONV "1.8288"
| Linear unit Fathom_International conversion factor to meter.
#define | SRS_UL_INTL_CHAIN "Chain_International"
| Linear unit Chain_International.
#define | SRS_UL_INTL_CHAIN_CONV "20.1168"
| Linear unit Chain_International conversion factor to meter.
#define | SRS_UL_INTL_LINK "Link_International"
| Linear unit Link_International.
#define | SRS_UL_INTL_LINK_CONV "0.201168"
| Linear unit Link_International conversion factor to meter.
#define | SRS_UL_US_INCH "Inch_US_Surveyor"
| Linear unit Inch_US_Surveyor.
#define | SRS_UL_US_INCH_CONV "0.025400050800101603"
| Linear unit Inch_US_Surveyor conversion factor to meter.
#define | SRS_UL_US_YARD "Yard_US_Surveyor"
| Linear unit Yard_US_Surveyor.
#define | SRS_UL_US_YARD_CONV "0.914401828803658"
| Linear unit Yard_US_Surveyor conversion factor to meter.
#define | SRS_UL_US_CHAIN "Chain_US_Surveyor"
| Linear unit Chain_US_Surveyor.
#define | SRS_UL_US_CHAIN_CONV "20.11684023368047"
| Linear unit Chain_US_Surveyor conversion factor to meter.
#define | SRS_UL_US_STAT_MILE "Statute_Mile_US_Surveyor"
| Linear unit Statute_Mile_US_Surveyor.
#define | SRS_UL_US_STAT_MILE_CONV "1609.347218694437"
| Linear unit Statute_Mile_US_Surveyor conversion factor to meter.
#define | SRS_UL_INDIAN_YARD "Yard_Indian"
| Linear unit Yard_Indian.
#define | SRS_UL_INDIAN_YARD_CONV "0.91439523"
| Linear unit Yard_Indian conversion factor to meter.
#define | SRS_UL_INDIAN_FOOT "Foot_Indian"
| Linear unit Foot_Indian.
#define | SRS_UL_INDIAN_FOOT_CONV "0.30479841"
| Linear unit Foot_Indian conversion factor to meter.
#define | SRS_UL_INDIAN_CHAIN "Chain_Indian"
| Linear unit Chain_Indian.
#define | SRS_UL_INDIAN_CHAIN_CONV "20.11669506"
| Linear unit Chain_Indian conversion factor to meter.
#define | SRS_UA_DEGREE "degree"
| Angular unit degree.
#define | SRS_UA_DEGREE_CONV "0.0174532925199433"
| Angular unit degree conversion factor to radians.
#define | SRS_UA_RADIAN "radian"
| Angular unit radian.
#define | SRS_PM_GREENWICH "Greenwich"
| Prime meridian Greenwich.
#define | SRS_DN_NAD27 "North_American_Datum_1927"
| North_American_Datum_1927 datum name.
#define | SRS_DN_NAD83 "North_American_Datum_1983"
| North_American_Datum_1983 datum name.
#define | SRS_DN_WGS72 "WGS_1972"
| WGS_1972 datum name.
#define | SRS_DN_WGS84 "WGS_1984"
| WGS_1984 datum name.
#define | SRS_WGS84_SEMIMAJOR 6378137.0
| Semi-major axis of the WGS84 ellipsoid.
#define | SRS_WGS84_INVFLATTENING 298.257223563
| Inverse flattening of the WGS84 ellipsoid.

## Typedefs
typedef void * | OGRSpatialReferenceH
| Opaque type for a Spatial Reference object.
typedef void * | OGRCoordinateTransformationH
| Opaque type for a coordinate transformation object.

## Enumerations
enum | OGRAxisOrientation { OAO_Other =0, OAO_North =1, OAO_South =2, OAO_East =3, OAO_West =4, OAO_Up =5, OAO_Down =6 }
| Axis orientations (corresponds to CS_AxisOrientationEnum). More...

## Functions
const char * | OSRAxisEnumToName (OGRAxisOrientation eOrientation)
| Return the string representation for the OGRAxisOrientation enumeration. More...
OGRSpatialReferenceH | OSRNewSpatialReference (const char *)
| Constructor. More...
OGRSpatialReferenceH | OSRCloneGeogCS (OGRSpatialReferenceH)
| Make a duplicate of the GEOGCS node of this OGRSpatialReference object. More...
OGRSpatialReferenceH | OSRClone (OGRSpatialReferenceH)
| Make a duplicate of this OGRSpatialReference. More...
void | OSRDestroySpatialReference (OGRSpatialReferenceH)
| OGRSpatialReference destructor. More...
int | OSRReference (OGRSpatialReferenceH)
| Increments the reference count by one. More...
int | OSRDereference (OGRSpatialReferenceH)
| Decrements the reference count by one. More...
void | OSRRelease (OGRSpatialReferenceH)
| Decrements the reference count by one, and destroy if zero. More...
OGRErr | OSRValidate (OGRSpatialReferenceH)
| Validate SRS tokens. More...
OGRErr | OSRFixupOrdering (OGRSpatialReferenceH)
| Correct parameter ordering to match CT Specification. More...
OGRErr | OSRFixup (OGRSpatialReferenceH)
| Fixup as needed. More...
OGRErr | OSRStripCTParms (OGRSpatialReferenceH)
| Strip OGC CT Parameters. More...
OGRErr | OSRImportFromEPSG (OGRSpatialReferenceH, int)
| Initialize SRS based on EPSG GCS or PCS code. More...
OGRErr | OSRImportFromEPSGA (OGRSpatialReferenceH, int)
| Initialize SRS based on EPSG GCS or PCS code. More...
OGRErr | OSRImportFromWkt (OGRSpatialReferenceH, char **)
| Import from WKT string. More...
OGRErr | OSRImportFromProj4 (OGRSpatialReferenceH, const char *)
| Import PROJ.4 coordinate string. More...
OGRErr | OSRImportFromESRI (OGRSpatialReferenceH, char **)
| Import coordinate system from ESRI .prj format(s). More...
OGRErr | OSRImportFromPCI (OGRSpatialReferenceH hSRS, const char *, const char *, double *)
| Import coordinate system from PCI projection definition. More...
OGRErr | OSRImportFromUSGS (OGRSpatialReferenceH, long, long, double *, long)
| Import coordinate system from USGS projection definition. More...
OGRErr | OSRImportFromXML (OGRSpatialReferenceH, const char *)
| Import coordinate system from XML format (GML only currently). More...
OGRErr | OSRImportFromDict (OGRSpatialReferenceH, const char *, const char *)
| Read SRS from WKT dictionary. More...
OGRErr | OSRImportFromPanorama (OGRSpatialReferenceH, long, long, long, double *)
| Import coordinate system from "Panorama" GIS projection definition. More...
OGRErr | OSRImportFromOzi (OGRSpatialReferenceH, const char *const *)
| Import coordinate system from OziExplorer projection definition. More...
OGRErr | OSRImportFromMICoordSys (OGRSpatialReferenceH, const char *)
| Import Mapinfo style CoordSys definition. More...
OGRErr | OSRImportFromERM (OGRSpatialReferenceH, const char *, const char *, const char *)
| Create OGR WKT from ERMapper projection definitions. More...
OGRErr | OSRImportFromUrl (OGRSpatialReferenceH, const char *)
| Set spatial reference from a URL. More...
OGRErr | OSRExportToWkt (OGRSpatialReferenceH, char **)
| Convert this SRS into WKT format. More...
OGRErr | OSRExportToPrettyWkt (OGRSpatialReferenceH, char **, int)
| Convert this SRS into a nicely formatted WKT string for display to a person. More...
OGRErr | OSRExportToProj4 (OGRSpatialReferenceH, char **)
| Export coordinate system in PROJ.4 format. More...
OGRErr | OSRExportToPCI (OGRSpatialReferenceH, char **, char **, double **)
| Export coordinate system in PCI projection definition. More...
OGRErr | OSRExportToUSGS (OGRSpatialReferenceH, long *, long *, double **, long *)
| Export coordinate system in USGS GCTP projection definition. More...
OGRErr | OSRExportToXML (OGRSpatialReferenceH, char **, const char *)
| Export coordinate system in XML format. More...
OGRErr | OSRExportToPanorama (OGRSpatialReferenceH, long *, long *, long *, long *, double *)
| Export coordinate system in "Panorama" GIS projection definition. More...
OGRErr | OSRExportToMICoordSys (OGRSpatialReferenceH, char **)
| Export coordinate system in Mapinfo style CoordSys format. More...
OGRErr | OSRExportToERM (OGRSpatialReferenceH, char *, char *, char *)
| Convert coordinate system to ERMapper format. More...
OGRErr | OSRMorphToESRI (OGRSpatialReferenceH)
| Convert in place to ESRI WKT format. More...
OGRErr | OSRMorphFromESRI (OGRSpatialReferenceH)
| Convert in place from ESRI WKT format. More...
OGRSpatialReferenceH | OSRConvertToOtherProjection (OGRSpatialReferenceH hSRS, const char *pszTargetProjection, const char *const *papszOptions)
| Convert to another equivalent projection. More...
OGRErr | OSRSetAttrValue (OGRSpatialReferenceH hSRS, const char *pszNodePath, const char *pszNewNodeValue)
| Set attribute value in spatial reference. More...
const char * | OSRGetAttrValue (OGRSpatialReferenceH hSRS, const char *pszName, int iChild)
| Fetch indicated attribute of named node. More...
OGRErr | OSRSetAngularUnits (OGRSpatialReferenceH, const char *, double)
| Set the angular units for the geographic coordinate system. More...
double | OSRGetAngularUnits (OGRSpatialReferenceH, char **)
| Fetch angular geographic coordinate system units. More...
OGRErr | OSRSetLinearUnits (OGRSpatialReferenceH, const char *, double)
| Set the linear units for the projection. More...
OGRErr | OSRSetTargetLinearUnits (OGRSpatialReferenceH, const char *, const char *, double)
| Set the linear units for the target node. More...
OGRErr | OSRSetLinearUnitsAndUpdateParameters (OGRSpatialReferenceH, const char *, double)
| Set the linear units for the projection. More...
double | OSRGetLinearUnits (OGRSpatialReferenceH, char **)
| Fetch linear projection units. More...
double | OSRGetTargetLinearUnits (OGRSpatialReferenceH, const char *, char **)
| Fetch linear projection units. More...
double | OSRGetPrimeMeridian (OGRSpatialReferenceH, char **)
| Fetch prime meridian info. More...
int | OSRIsGeographic (OGRSpatialReferenceH)
| Check if geographic coordinate system. More...
int | OSRIsLocal (OGRSpatialReferenceH)
| Check if local coordinate system. More...
int | OSRIsProjected (OGRSpatialReferenceH)
| Check if projected coordinate system. More...
int | OSRIsCompound (OGRSpatialReferenceH)
| Check if the coordinate system is compound. More...
int | OSRIsGeocentric (OGRSpatialReferenceH)
| Check if geocentric coordinate system. More...
int | OSRIsVertical (OGRSpatialReferenceH)
| Check if vertical coordinate system. More...
int | OSRIsSameGeogCS (OGRSpatialReferenceH, OGRSpatialReferenceH)
| Do the GeogCS'es match? More...
int | OSRIsSameVertCS (OGRSpatialReferenceH, OGRSpatialReferenceH)
| Do the VertCS'es match? More...
int | OSRIsSame (OGRSpatialReferenceH, OGRSpatialReferenceH)
| Do these two spatial references describe the same system ? More...
OGRErr | OSRSetLocalCS (OGRSpatialReferenceH hSRS, const char *pszName)
| Set the user visible LOCAL_CS name. More...
OGRErr | OSRSetProjCS (OGRSpatialReferenceH hSRS, const char *pszName)
| Set the user visible PROJCS name. More...
OGRErr | OSRSetGeocCS (OGRSpatialReferenceH hSRS, const char *pszName)
| Set the user visible PROJCS name. More...
OGRErr | OSRSetWellKnownGeogCS (OGRSpatialReferenceH hSRS, const char *pszName)
| Set a GeogCS based on well known name. More...
OGRErr | OSRSetFromUserInput (OGRSpatialReferenceH hSRS, const char *)
| Set spatial reference from various text formats. More...
OGRErr | OSRCopyGeogCSFrom (OGRSpatialReferenceH hSRS, const OGRSpatialReferenceH hSrcSRS)
| Copy GEOGCS from another OGRSpatialReference. More...
OGRErr | OSRSetTOWGS84 (OGRSpatialReferenceH hSRS, double, double, double, double, double, double, double)
| Set the Bursa-Wolf conversion to WGS84. More...
OGRErr | OSRGetTOWGS84 (OGRSpatialReferenceH hSRS, double *, int)
| Fetch TOWGS84 parameters, if available. More...
OGRErr | OSRSetCompoundCS (OGRSpatialReferenceH hSRS, const char *pszName, OGRSpatialReferenceH hHorizSRS, OGRSpatialReferenceH hVertSRS)
| Setup a compound coordinate system. More...
OGRErr | OSRSetGeogCS (OGRSpatialReferenceH hSRS, const char *pszGeogName, const char *pszDatumName, const char *pszEllipsoidName, double dfSemiMajor, double dfInvFlattening, const char *pszPMName, double dfPMOffset, const char *pszUnits, double dfConvertToRadians)
| Set geographic coordinate system. More...
OGRErr | OSRSetVertCS (OGRSpatialReferenceH hSRS, const char *pszVertCSName, const char *pszVertDatumName, int nVertDatumType)
| Setup the vertical coordinate system. More...
double | OSRGetSemiMajor (OGRSpatialReferenceH, OGRErr *)
| Get spheroid semi major axis. More...
double | OSRGetSemiMinor (OGRSpatialReferenceH, OGRErr *)
| Get spheroid semi minor axis. More...
double | OSRGetInvFlattening (OGRSpatialReferenceH, OGRErr *)
| Get spheroid inverse flattening. More...
OGRErr | OSRSetAuthority (OGRSpatialReferenceH hSRS, const char *pszTargetKey, const char *pszAuthority, int nCode)
| Set the authority for a node. More...
const char * | OSRGetAuthorityCode (OGRSpatialReferenceH hSRS, const char *pszTargetKey)
| Get the authority code for a node. More...
const char * | OSRGetAuthorityName (OGRSpatialReferenceH hSRS, const char *pszTargetKey)
| Get the authority name for a node. More...
OGRErr | OSRSetProjection (OGRSpatialReferenceH, const char *)
| Set a projection name. More...
OGRErr | OSRSetProjParm (OGRSpatialReferenceH, const char *, double)
| Set a projection parameter value. More...
double | OSRGetProjParm (OGRSpatialReferenceH hSRS, const char *pszParmName, double dfDefault, OGRErr *)
| Fetch a projection parameter value. More...
OGRErr | OSRSetNormProjParm (OGRSpatialReferenceH, const char *, double)
| Set a projection parameter with a normalized value. More...
double | OSRGetNormProjParm (OGRSpatialReferenceH hSRS, const char *pszParmName, double dfDefault, OGRErr *)
| This function is the same as OGRSpatialReference:: More...
OGRErr | OSRSetUTM (OGRSpatialReferenceH hSRS, int nZone, int bNorth)
| Set UTM projection definition. More...
int | OSRGetUTMZone (OGRSpatialReferenceH hSRS, int *pbNorth)
| Get utm zone information. More...
OGRErr | OSRSetStatePlane (OGRSpatialReferenceH hSRS, int nZone, int bNAD83)
| Set State Plane projection definition. More...
OGRErr | OSRSetStatePlaneWithUnits (OGRSpatialReferenceH hSRS, int nZone, int bNAD83, const char *pszOverrideUnitName, double dfOverrideUnit)
| Set State Plane projection definition. More...
OGRErr | OSRAutoIdentifyEPSG (OGRSpatialReferenceH hSRS)
| Set EPSG authority info if possible. More...
OGRSpatialReferenceH * | OSRFindMatches (OGRSpatialReferenceH hSRS, char **papszOptions, int *pnEntries, int **ppanMatchConfidence)
| Try to identify a match between the passed SRS and a related SRS in a catalog (currently EPSG only) More...
void | OSRFreeSRSArray (OGRSpatialReferenceH *pahSRS)
| Free return of OSRIdentifyMatches() More...
int | OSREPSGTreatsAsLatLong (OGRSpatialReferenceH hSRS)
| This function returns TRUE if EPSG feels this geographic coordinate system should be treated as having lat/long coordinate ordering. More...
int | OSREPSGTreatsAsNorthingEasting (OGRSpatialReferenceH hSRS)
| This function returns TRUE if EPSG feels this geographic coordinate system should be treated as having northing/easting coordinate ordering. More...
const char * | OSRGetAxis (OGRSpatialReferenceH hSRS, const char *pszTargetKey, int iAxis, OGRAxisOrientation *peOrientation)
| Fetch the orientation of one axis. More...
OGRErr | OSRSetAxes (OGRSpatialReferenceH hSRS, const char *pszTargetKey, const char *pszXAxisName, OGRAxisOrientation eXAxisOrientation, const char *pszYAxisName, OGRAxisOrientation eYAxisOrientation)
| Set the axes for a coordinate system. More...
OGRErr | OSRSetACEA (OGRSpatialReferenceH hSRS, double dfStdP1, double dfStdP2, double dfCenterLat, double dfCenterLong, double dfFalseEasting, double dfFalseNorthing)
| Albers Conic Equal Area.
OGRErr | OSRSetAE (OGRSpatialReferenceH hSRS, double dfCenterLat, double dfCenterLong, double dfFalseEasting, double dfFalseNorthing)
| Azimuthal Equidistant.
OGRErr | OSRSetBonne (OGRSpatialReferenceH hSRS, double dfStandardParallel, double dfCentralMeridian, double dfFalseEasting, double dfFalseNorthing)
| Bonne.
OGRErr | OSRSetCEA (OGRSpatialReferenceH hSRS, double dfStdP1, double dfCentralMeridian, double dfFalseEasting, double dfFalseNorthing)
| Cylindrical Equal Area.
OGRErr | OSRSetCS (OGRSpatialReferenceH hSRS, double dfCenterLat, double dfCenterLong, double dfFalseEasting, double dfFalseNorthing)
| Cassini-Soldner.
OGRErr | OSRSetEC (OGRSpatialReferenceH hSRS, double dfStdP1, double dfStdP2, double dfCenterLat, double dfCenterLong, double dfFalseEasting, double dfFalseNorthing)
| Equidistant Conic.
OGRErr | OSRSetEckert (OGRSpatialReferenceH hSRS, int nVariation, double dfCentralMeridian, double dfFalseEasting, double dfFalseNorthing)
| Eckert I-VI.
OGRErr | OSRSetEckertIV (OGRSpatialReferenceH hSRS, double dfCentralMeridian, double dfFalseEasting, double dfFalseNorthing)
| Eckert IV.
OGRErr | OSRSetEckertVI (OGRSpatialReferenceH hSRS, double dfCentralMeridian, double dfFalseEasting, double dfFalseNorthing)
| Eckert VI.
OGRErr | OSRSetEquirectangular (OGRSpatialReferenceH hSRS, double dfCenterLat, double dfCenterLong, double dfFalseEasting, double dfFalseNorthing)
| Equirectangular.
OGRErr | OSRSetEquirectangular2 (OGRSpatialReferenceH hSRS, double dfCenterLat, double dfCenterLong, double dfPseudoStdParallel1, double dfFalseEasting, double dfFalseNorthing)
| Equirectangular generalized form.
OGRErr | OSRSetGS (OGRSpatialReferenceH hSRS, double dfCentralMeridian, double dfFalseEasting, double dfFalseNorthing)
| Gall Stereograpic.
OGRErr | OSRSetGH (OGRSpatialReferenceH hSRS, double dfCentralMeridian, double dfFalseEasting, double dfFalseNorthing)
| Goode Homolosine.
OGRErr | OSRSetIGH (OGRSpatialReferenceH hSRS)
| Interrupted Goode Homolosine.
OGRErr | OSRSetGEOS (OGRSpatialReferenceH hSRS, double dfCentralMeridian, double dfSatelliteHeight, double dfFalseEasting, double dfFalseNorthing)
| GEOS - Geostationary Satellite View.
OGRErr | OSRSetGaussSchreiberTMercator (OGRSpatialReferenceH hSRS, double dfCenterLat, double dfCenterLong, double dfScale, double dfFalseEasting, double dfFalseNorthing)
| Gauss Schreiber Transverse Mercator.
OGRErr | OSRSetGnomonic (OGRSpatialReferenceH hSRS, double dfCenterLat, double dfCenterLong, double dfFalseEasting, double dfFalseNorthing)
| Gnomonic.
OGRErr | OSRSetHOM (OGRSpatialReferenceH hSRS, double dfCenterLat, double dfCenterLong, double dfAzimuth, double dfRectToSkew, double dfScale, double dfFalseEasting, double dfFalseNorthing)
| Hotine Oblique Mercator using azimuth angle. More...
OGRErr | OSRSetHOMAC (OGRSpatialReferenceH hSRS, double dfCenterLat, double dfCenterLong, double dfAzimuth, double dfRectToSkew, double dfScale, double dfFalseEasting, double dfFalseNorthing)
| Set an Oblique Mercator projection using azimuth angle. More...
OGRErr | OSRSetHOM2PNO (OGRSpatialReferenceH hSRS, double dfCenterLat, double dfLat1, double dfLong1, double dfLat2, double dfLong2, double dfScale, double dfFalseEasting, double dfFalseNorthing)
| Hotine Oblique Mercator using two points on centerline. More...
OGRErr | OSRSetIWMPolyconic (OGRSpatialReferenceH hSRS, double dfLat1, double dfLat2, double dfCenterLong, double dfFalseEasting, double dfFalseNorthing)
| International Map of the World Polyconic.
OGRErr | OSRSetKrovak (OGRSpatialReferenceH hSRS, double dfCenterLat, double dfCenterLong, double dfAzimuth, double dfPseudoStdParallelLat, double dfScale, double dfFalseEasting, double dfFalseNorthing)
| Krovak Oblique Conic Conformal.
OGRErr | OSRSetLAEA (OGRSpatialReferenceH hSRS, double dfCenterLat, double dfCenterLong, double dfFalseEasting, double dfFalseNorthing)
| Lambert Azimuthal Equal-Area.
OGRErr | OSRSetLCC (OGRSpatialReferenceH hSRS, double dfStdP1, double dfStdP2, double dfCenterLat, double dfCenterLong, double dfFalseEasting, double dfFalseNorthing)
| Lambert Conformal Conic.
OGRErr | OSRSetLCC1SP (OGRSpatialReferenceH hSRS, double dfCenterLat, double dfCenterLong, double dfScale, double dfFalseEasting, double dfFalseNorthing)
| Lambert Conformal Conic 1SP.
OGRErr | OSRSetLCCB (OGRSpatialReferenceH hSRS, double dfStdP1, double dfStdP2, double dfCenterLat, double dfCenterLong, double dfFalseEasting, double dfFalseNorthing)
| Lambert Conformal Conic (Belgium)
OGRErr | OSRSetMC (OGRSpatialReferenceH hSRS, double dfCenterLat, double dfCenterLong, double dfFalseEasting, double dfFalseNorthing)
| Miller Cylindrical.
OGRErr | OSRSetMercator (OGRSpatialReferenceH hSRS, double dfCenterLat, double dfCenterLong, double dfScale, double dfFalseEasting, double dfFalseNorthing)
| Mercator.
OGRErr | OSRSetMercator2SP (OGRSpatialReferenceH hSRS, double dfStdP1, double dfCenterLat, double dfCenterLong, double dfFalseEasting, double dfFalseNorthing)
| Mercator 2SP.
OGRErr | OSRSetMollweide (OGRSpatialReferenceH hSRS, double dfCentralMeridian, double dfFalseEasting, double dfFalseNorthing)
| Mollweide.
OGRErr | OSRSetNZMG (OGRSpatialReferenceH hSRS, double dfCenterLat, double dfCenterLong, double dfFalseEasting, double dfFalseNorthing)
| New Zealand Map Grid.
OGRErr | OSRSetOS (OGRSpatialReferenceH hSRS, double dfOriginLat, double dfCMeridian, double dfScale, double dfFalseEasting, double dfFalseNorthing)
| Oblique Stereographic.
OGRErr | OSRSetOrthographic (OGRSpatialReferenceH hSRS, double dfCenterLat, double dfCenterLong, double dfFalseEasting, double dfFalseNorthing)
| Orthographic.
OGRErr | OSRSetPolyconic (OGRSpatialReferenceH hSRS, double dfCenterLat, double dfCenterLong, double dfFalseEasting, double dfFalseNorthing)
| Polyconic.
OGRErr | OSRSetPS (OGRSpatialReferenceH hSRS, double dfCenterLat, double dfCenterLong, double dfScale, double dfFalseEasting, double dfFalseNorthing)
| Polar Stereographic.
OGRErr | OSRSetRobinson (OGRSpatialReferenceH hSRS, double dfCenterLong, double dfFalseEasting, double dfFalseNorthing)
| Robinson.
OGRErr | OSRSetSinusoidal (OGRSpatialReferenceH hSRS, double dfCenterLong, double dfFalseEasting, double dfFalseNorthing)
| Sinusoidal.
OGRErr | OSRSetStereographic (OGRSpatialReferenceH hSRS, double dfCenterLat, double dfCenterLong, double dfScale, double dfFalseEasting, double dfFalseNorthing)
| Stereographic.
OGRErr | OSRSetSOC (OGRSpatialReferenceH hSRS, double dfLatitudeOfOrigin, double dfCentralMeridian, double dfFalseEasting, double dfFalseNorthing)
| Swiss Oblique Cylindrical.
OGRErr | OSRSetTM (OGRSpatialReferenceH hSRS, double dfCenterLat, double dfCenterLong, double dfScale, double dfFalseEasting, double dfFalseNorthing)
| Transverse Mercator. More...
OGRErr | OSRSetTMVariant (OGRSpatialReferenceH hSRS, const char *pszVariantName, double dfCenterLat, double dfCenterLong, double dfScale, double dfFalseEasting, double dfFalseNorthing)
| Transverse Mercator variant.
OGRErr | OSRSetTMG (OGRSpatialReferenceH hSRS, double dfCenterLat, double dfCenterLong, double dfFalseEasting, double dfFalseNorthing)
| Tunesia Mining Grid.
OGRErr | OSRSetTMSO (OGRSpatialReferenceH hSRS, double dfCenterLat, double dfCenterLong, double dfScale, double dfFalseEasting, double dfFalseNorthing)
| Transverse Mercator (South Oriented)
OGRErr | OSRSetTPED (OGRSpatialReferenceH hSRS, double dfLat1, double dfLong1, double dfLat2, double dfLong2, double dfFalseEasting, double dfFalseNorthing)
| TPED (Two Point Equi Distant)
OGRErr | OSRSetVDG (OGRSpatialReferenceH hSRS, double dfCenterLong, double dfFalseEasting, double dfFalseNorthing)
| VanDerGrinten.
OGRErr | OSRSetWagner (OGRSpatialReferenceH hSRS, int nVariation, double dfCenterLat, double dfFalseEasting, double dfFalseNorthing)
| Wagner I – VII.
OGRErr | OSRSetQSC (OGRSpatialReferenceH hSRS, double dfCenterLat, double dfCenterLong)
| Quadrilateralized Spherical Cube.
OGRErr | OSRSetSCH (OGRSpatialReferenceH hSRS, double dfPegLat, double dfPegLong, double dfPegHeading, double dfPegHgt)
| Spherical, Cross-track, Height.
double | OSRCalcInvFlattening (double dfSemiMajor, double dfSemiMinor)
| Compute inverse flattening from semi-major and semi-minor axis. More...
double | OSRCalcSemiMinorFromInvFlattening (double dfSemiMajor, double dfInvFlattening)
| Compute semi-minor axis from semi-major axis and inverse flattening. More...
void | OSRCleanup (void)
| Cleanup cached SRS related memory. More...
OGRCoordinateTransformationH | OCTNewCoordinateTransformation (OGRSpatialReferenceH hSourceSRS, OGRSpatialReferenceH hTargetSRS)
| Create transformation object. More...
void | OCTDestroyCoordinateTransformation (OGRCoordinateTransformationH)
| OGRCoordinateTransformation destructor. More...
int | OCTTransform (OGRCoordinateTransformationH hCT, int nCount, double *x, double *y, double *z)
| Transform an array of points. More...
int | OCTTransformEx (OGRCoordinateTransformationH hCT, int nCount, double *x, double *y, double *z, int *pabSuccess)
| Transform an array of points. More...
char ** | OPTGetProjectionMethods (void)
| Fetch list of possible projection methods. More...
char ** | OPTGetParameterList (const char *pszProjectionMethod, char **ppszUserName)
| Fetch the parameters for a given projection method. More...
int | OPTGetParameterInfo (const char *pszProjectionMethod, const char *pszParameterName, char **ppszUserName, char **ppszType, double *pdfDefaultValue)
| Fetch information about a single parameter of a projection method. More...

## Detailed Description

C spatial reference system services and defines.

See also: ogr_spatialref.h

## Enumeration Type Documentation

enum OGRAxisOrientation

Axis orientations (corresponds to CS_AxisOrientationEnum).

Enumerator
OAO_Other | Other.
OAO_North | North.
OAO_South | South.
OAO_East | East.
OAO_West | West.
OAO_Up | Up (to space)
OAO_Down | Down (to Earth center)

## Function Documentation

void OCTDestroyCoordinateTransformation | ( | OGRCoordinateTransformationH | hCT | ) |

OGRCoordinateTransformation destructor.

This function is the same as OGRCoordinateTransformation::DestroyCT()

Parameters

  hCT | the object to delete

OGRCoordinateTransformationH OCTNewCoordinateTransformation | ( | OGRSpatialReferenceH | hSourceSRS,
|  | OGRSpatialReferenceH | hTargetSRS
| ) |  |

Create transformation object.

This is the same as the C++ function OGRCreateCoordinateTransformation().

Input spatial reference system objects are assigned by copy (calling clone() method) and no ownership transfer occurs.

OCTDestroyCoordinateTransformation() should be used to destroy transformation objects.

The PROJ.4 library must be available at run-time.

Parameters

  hSourceSRS | source spatial reference system.
  hTargetSRS | target spatial reference system.

Returns
  NULL on failure or a ready to use transformation object.

int OCTTransform | ( | OGRCoordinateTransformationH | hTransform,
|  | int | nCount,
|  | double * | x,
|  | double * | y,
|  | double * | z
| ) |  |

Transform an array of points.

Parameters

  hTransform | Transformation object
  nCount | Number of points
  x | Array of nCount x values.
  y | Array of nCount y values.
  z | Array of nCount z values.

Returns
  TRUE or FALSE

int OCTTransformEx | ( | OGRCoordinateTransformationH | hTransform,
|  | int | nCount,
|  | double * | x,
|  | double * | y,
|  | double * | z,
|  | int * | pabSuccess
| ) |  |

Transform an array of points.

Parameters

  hTransform | Transformation object
  nCount | Number of points
  x | Array of nCount x values.
  y | Array of nCount y values.
  z | Array of nCount z values.
  pabSuccess | Output array of nCount value that will be set to TRUE/FALSE

Returns
  TRUE or FALSE

int OPTGetParameterInfo | ( | const char * | pszProjectionMethod,
|  | const char * | pszParameterName,
|  | char ** | ppszUserName,
|  | char ** | ppszType,
|  | double * | pdfDefaultValue
| ) |  |

Fetch information about a single parameter of a projection method.

Parameters

  pszProjectionMethod | name of projection method for which the parameter applies. Not currently used, but in the future this could affect defaults. This is the internal projection method name, such as "Tranverse_Mercator".
  pszParameterName | name of the parameter to fetch information about. This is the internal name such as "central_meridian" (SRS_PP_CENTRAL_MERIDIAN).
  ppszUserName | location at which to return the user visible name for the parameter. This pointer may be NULL to skip the user name. The returned name should not be modified or freed.
  ppszType | location at which to return the parameter type for the parameter. This pointer may be NULL to skip. The returned type should not be modified or freed. The type values are described above.
  pdfDefaultValue | location at which to put the default value for this parameter. The pointer may be NULL.

Returns
  TRUE if parameter found, or FALSE otherwise.

char** OPTGetParameterList | ( | const char * | pszProjectionMethod,
|  | char ** | ppszUserName
| ) |  |

Fetch the parameters for a given projection method.

Parameters

  pszProjectionMethod | internal name of projection methods to fetch the parameters for, such as "Transverse_Mercator" (SRS_PT_TRANSVERSE_MERCATOR).
  ppszUserName | pointer in which to return a user visible name for the projection name. The returned string should not be modified or freed by the caller. Legal to pass in NULL if user name not required.

Returns
  returns a NULL terminated list of internal parameter names that should be freed by the caller when no longer needed. Returns NULL if projection method is unknown.

char** OPTGetProjectionMethods | ( | void |  | ) |

Fetch list of possible projection methods.

Returns
  Returns NULL terminated list of projection methods. This should be freed with CSLDestroy() when no longer needed.

OGRErr OSRAutoIdentifyEPSG | ( | OGRSpatialReferenceH | hSRS | ) |

Set EPSG authority info if possible.

This function is the same as OGRSpatialReference::AutoIdentifyEPSG().

Since GDAL 2.3, the OSRFindMatches() function can also be used for improved matching by researching the EPSG catalog.

const char* OSRAxisEnumToName | ( | OGRAxisOrientation | eOrientation | ) |

Return the string representation for the OGRAxisOrientation enumeration.

For example "NORTH" for OAO_North.

Returns
  an internal string

double OSRCalcInvFlattening | ( | double | dfSemiMajor,
|  | double | dfSemiMinor
| ) |  |

Compute inverse flattening from semi-major and semi-minor axis.

Parameters

  dfSemiMajor | Semi-major axis length.
  dfSemiMinor | Semi-minor axis length.

Returns
  inverse flattening, or 0 if both axis are equal.

Since
  GDAL 2.0

double OSRCalcSemiMinorFromInvFlattening | ( | double | dfSemiMajor,
|  | double | dfInvFlattening
| ) |  |

Compute semi-minor axis from semi-major axis and inverse flattening.

Parameters

  dfSemiMajor | Semi-major axis length.
  dfInvFlattening | Inverse flattening or 0 for sphere.

Returns
  semi-minor axis

Since
  GDAL 2.0

void OSRCleanup | ( | void |  | ) |

Cleanup cached SRS related memory.

This function will attempt to cleanup any cache spatial reference related information, such as cached tables of coordinate systems.

OGRSpatialReferenceH OSRClone | ( | OGRSpatialReferenceH | hSRS | ) |

Make a duplicate of this OGRSpatialReference.

This function is the same as OGRSpatialReference::Clone()

OGRSpatialReferenceH OSRCloneGeogCS | ( | OGRSpatialReferenceH | hSource | ) |

Make a duplicate of the GEOGCS node of this OGRSpatialReference object.

This function is the same as OGRSpatialReference::CloneGeogCS().

OGRSpatialReferenceH OSRConvertToOtherProjection | ( | OGRSpatialReferenceH | hSRS,
|  | const char * | pszTargetProjection,
|  | const char *const * | papszOptions
| ) |  |

Convert to another equivalent projection.

Currently implemented:

- SRS_PT_MERCATOR_1SP to SRS_PT_MERCATOR_2SP
- SRS_PT_MERCATOR_2SP to SRS_PT_MERCATOR_1SP
- SRS_PT_LAMBERT_CONFORMAL_CONIC_1SP to SRS_PT_LAMBERT_CONFORMAL_CONIC_2SP
- SRS_PT_LAMBERT_CONFORMAL_CONIC_2SP to SRS_PT_LAMBERT_CONFORMAL_CONIC_1SP

Parameters

  hSRS | source SRS
  pszTargetProjection | target projection.
  papszOptions | lists of options. None supported currently.

Returns
  a new SRS, or NULL in case of error.

Since
  GDAL 2.3

OGRErr OSRCopyGeogCSFrom | ( | OGRSpatialReferenceH | hSRS,
|  | const OGRSpatialReferenceH | hSrcSRS
| ) |  |

Copy GEOGCS from another OGRSpatialReference.

This function is the same as OGRSpatialReference::CopyGeogCSFrom()

int OSRDereference | ( | OGRSpatialReferenceH | hSRS | ) |

Decrements the reference count by one.

This function is the same as OGRSpatialReference::Dereference()

void OSRDestroySpatialReference | ( | OGRSpatialReferenceH | hSRS | ) |

OGRSpatialReference destructor.

This function is the same as OGRSpatialReference::~OGRSpatialReference() and OGRSpatialReference::DestroySpatialReference()

Parameters

  hSRS | the object to delete

int OSREPSGTreatsAsLatLong | ( | OGRSpatialReferenceH | hSRS | ) |

This function returns TRUE if EPSG feels this geographic coordinate system should be treated as having lat/long coordinate ordering.

This function is the same as OGRSpatialReference::OSREPSGTreatsAsLatLong().

int OSREPSGTreatsAsNorthingEasting | ( | OGRSpatialReferenceH | hSRS | ) |

This function returns TRUE if EPSG feels this geographic coordinate system should be treated as having northing/easting coordinate ordering.

This function is the same as OGRSpatialReference::EPSGTreatsAsNorthingEasting().

Since
  OGR 1.10.0

OGRErr OSRExportToERM | ( | OGRSpatialReferenceH | hSRS,
|  | char * | pszProj,
|  | char * | pszDatum,
|  | char * | pszUnits
| ) |  |

Convert coordinate system to ERMapper format.

This function is the same as OGRSpatialReference::exportToERM().

OGRErr OSRExportToMICoordSys | ( | OGRSpatialReferenceH | hSRS,
|  | char ** | ppszReturn
| ) |  |

Export coordinate system in Mapinfo style CoordSys format.

This method is the equivalent of the C++ method OGRSpatialReference::exportToMICoordSys

OGRErr OSRExportToPanorama | ( | OGRSpatialReferenceH | hSRS,
|  | long * | piProjSys,
|  | long * | piDatum,
|  | long * | piEllips,
|  | long * | piZone,
|  | double * | padfPrjParams
| ) |  |

Export coordinate system in "Panorama" GIS projection definition.

See OGRSpatialReference::exportToPanorama()

OGRErr OSRExportToPCI | ( | OGRSpatialReferenceH | hSRS,
|  | char ** | ppszProj,
|  | char ** | ppszUnits,
|  | double ** | ppadfPrjParams
| ) |  |

Export coordinate system in PCI projection definition.

This function is the same as OGRSpatialReference::exportToPCI().

OGRErr OSRExportToPrettyWkt | ( | OGRSpatialReferenceH | hSRS,
|  | char ** | ppszReturn,
|  | int | bSimplify
| ) |  |

Convert this SRS into a nicely formatted WKT string for display to a person.

This function is the same as OGRSpatialReference::exportToPrettyWkt().

OGRErr OSRExportToProj4 | ( | OGRSpatialReferenceH | hSRS,
|  | char ** | ppszReturn
| ) |  |

Export coordinate system in PROJ.4 format.

This function is the same as OGRSpatialReference::exportToProj4().

OGRErr OSRExportToUSGS | ( | OGRSpatialReferenceH | hSRS,
|  | long * | piProjSys,
|  | long * | piZone,
|  | double ** | ppadfPrjParams,
|  | long * | piDatum
| ) |  |

Export coordinate system in USGS GCTP projection definition.

This function is the same as OGRSpatialReference::exportToUSGS().

OGRErr OSRExportToWkt | ( | OGRSpatialReferenceH | hSRS,
|  | char ** | ppszReturn
| ) |  |

Convert this SRS into WKT format.

Consult also the OGC WKT Coordinate System Issues page for implementation details of WKT in OGR.

This function is the same as OGRSpatialReference::exportToWkt().

OGRErr OSRExportToXML | ( | OGRSpatialReferenceH | hSRS,
|  | char ** | ppszRawXML,
|  | const char * | pszDialect
| ) |  |

Export coordinate system in XML format.

This function is the same as OGRSpatialReference::exportToXML().

OGRSpatialReferenceH* OSRFindMatches | ( | OGRSpatialReferenceH | hSRS,
|  | char ** | papszOptions,
|  | int * | pnEntries,
|  | int ** | ppanMatchConfidence
| ) |  |

Try to identify a match between the passed SRS and a related SRS in a catalog (currently EPSG only)

Matching may be partial, or may fail. Returned entries will be sorted by decreasing match confidence (first entry has the highest match confidence).

The exact way matching is done may change in future versions.

The current algorithm is:

- try first AutoIdentifyEPSG(). If it succeeds, return the corresponding SRS
- otherwise iterate over all SRS from the EPSG catalog (as found in GDAL pcs.csv and gcs.csv files+esri_extra.wkt), and find those that match the input SRS using the IsSame() function (ignoring TOWGS84 clauses)
- if there is a single match using IsSame() or one of the matches has the same SRS name, return it with 100% confidence
- if a SRS has the same SRS name, but does not pass the IsSame() criteria, return it with 50% confidence.
- otherwise return all candidate SRS that pass the IsSame() criteria with a 90% confidence.

A pre-built SRS cache in ~/.gdal/X.Y/srs_cache will be used if existing, otherwise it will be built at the first run of this function.

This function is the same as OGRSpatialReference::FindMatches().

Parameters

  hSRS | SRS to match
  papszOptions | NULL terminated list of options or NULL
  pnEntries | Output parameter. Number of values in the returned array.
  ppanMatchConfidence | Output parameter (or NULL). *ppanMatchConfidence will be allocated to an array of *pnEntries whose values between 0 and 100 indicate the confidence in the match. 100 is the highest confidence level. The array must be freed with CPLFree().

Returns
  an array of SRS that match the passed SRS, or NULL. Must be freed with OSRFreeSRSArray()

Since
  GDAL 2.3

OGRErr OSRFixup | ( | OGRSpatialReferenceH | hSRS | ) |

Fixup as needed.

This function is the same as OGRSpatialReference::Fixup().

OGRErr OSRFixupOrdering | ( | OGRSpatialReferenceH | hSRS | ) |

Correct parameter ordering to match CT Specification.

This function is the same as OGRSpatialReference::FixupOrdering().

void OSRFreeSRSArray | ( | OGRSpatialReferenceH * | pahSRS | ) |

Free return of OSRIdentifyMatches()

Parameters

  pahSRS | array of SRS (must be NULL terminated)

Since
  GDAL 2.3

double OSRGetAngularUnits | ( | OGRSpatialReferenceH | hSRS,
|  | char ** | ppszName
| ) |  |

Fetch angular geographic coordinate system units.

This function is the same as OGRSpatialReference::GetAngularUnits()

const char* OSRGetAttrValue | ( | OGRSpatialReferenceH | hSRS,
|  | const char * | pszKey,
|  | int | iChild
| ) |  |

Fetch indicated attribute of named node.

This function is the same as OGRSpatialReference::GetAttrValue()

const char* OSRGetAuthorityCode | ( | OGRSpatialReferenceH | hSRS,
|  | const char * | pszTargetKey
| ) |  |

Get the authority code for a node.

This function is the same as OGRSpatialReference::GetAuthorityCode().

const char* OSRGetAuthorityName | ( | OGRSpatialReferenceH | hSRS,
|  | const char * | pszTargetKey
| ) |  |

Get the authority name for a node.

This function is the same as OGRSpatialReference::GetAuthorityName().

const char* OSRGetAxis | ( | OGRSpatialReferenceH | hSRS,
|  | const char * | pszTargetKey,
|  | int | iAxis,
|  | OGRAxisOrientation * | peOrientation
| ) |  |

Fetch the orientation of one axis.

This method is the equivalent of the C++ method OGRSpatialReference::GetAxis

double OSRGetInvFlattening | ( | OGRSpatialReferenceH | hSRS,
|  | OGRErr * | pnErr
| ) |  |

Get spheroid inverse flattening.

This function is the same as OGRSpatialReference::GetInvFlattening()

double OSRGetLinearUnits | ( | OGRSpatialReferenceH | hSRS,
|  | char ** | ppszName
| ) |  |

Fetch linear projection units.

This function is the same as OGRSpatialReference::GetLinearUnits()

double OSRGetNormProjParm | ( | OGRSpatialReferenceH | hSRS,
|  | const char * | pszName,
|  | double | dfDefaultValue,
|  | OGRErr * | pnErr
| ) |  |

This function is the same as OGRSpatialReference::

This function is the same as OGRSpatialReference::GetNormProjParm()

double OSRGetPrimeMeridian | ( | OGRSpatialReferenceH | hSRS,
|  | char ** | ppszName
| ) |  |

Fetch prime meridian info.

This function is the same as OGRSpatialReference::GetPrimeMeridian()

double OSRGetProjParm | ( | OGRSpatialReferenceH | hSRS,
|  | const char * | pszName,
|  | double | dfDefaultValue,
|  | OGRErr * | pnErr
| ) |  |

Fetch a projection parameter value.

This function is the same as OGRSpatialReference::GetProjParm()

double OSRGetSemiMajor | ( | OGRSpatialReferenceH | hSRS,
|  | OGRErr * | pnErr
| ) |  |

Get spheroid semi major axis.

This function is the same as OGRSpatialReference::GetSemiMajor()

double OSRGetSemiMinor | ( | OGRSpatialReferenceH | hSRS,
|  | OGRErr * | pnErr
| ) |  |

Get spheroid semi minor axis.

This function is the same as OGRSpatialReference::GetSemiMinor()

double OSRGetTargetLinearUnits | ( | OGRSpatialReferenceH | hSRS,
|  | const char * | pszTargetKey,
|  | char ** | ppszName
| ) |  |

Fetch linear projection units.

This function is the same as OGRSpatialReference::GetTargetLinearUnits()

Since
  OGR 1.9.0

OGRErr OSRGetTOWGS84 | ( | OGRSpatialReferenceH | hSRS,
|  | double * | padfCoeff,
|  | int | nCoeffCount
| ) |  |

Fetch TOWGS84 parameters, if available.

This function is the same as OGRSpatialReference::GetTOWGS84().

int OSRGetUTMZone | ( | OGRSpatialReferenceH | hSRS,
|  | int * | pbNorth
| ) |  |

Get utm zone information.

This is the same as the C++ method OGRSpatialReference::GetUTMZone()

OGRErr OSRImportFromDict | ( | OGRSpatialReferenceH | hSRS,
|  | const char * | pszDictFile,
|  | const char * | pszCode
| ) |  |

Read SRS from WKT dictionary.

This method will attempt to find the indicated coordinate system identity in the indicated dictionary file. If found, the WKT representation is imported and used to initialize this OGRSpatialReference.

More complete information on the format of the dictionary files can be found in the epsg.wkt file in the GDAL data tree. The dictionary files are searched for in the "GDAL" domain using CPLFindFile(). Normally this results in searching /usr/local/share/gdal or somewhere similar.

This method is the same as the C++ method OGRSpatialReference::importFromDict().

Parameters

  hSRS | spatial reference system handle.
  pszDictFile | the name of the dictionary file to load.
  pszCode | the code to lookup in the dictionary.

Returns
  OGRERR_NONE on success, or OGRERR_SRS_UNSUPPORTED if the code isn't found, and OGRERR_SRS_FAILURE if something more dramatic goes wrong.

OGRErr OSRImportFromEPSG | ( | OGRSpatialReferenceH | hSRS,
|  | int | nCode
| ) |  |

Initialize SRS based on EPSG GCS or PCS code.

This function is the same as OGRSpatialReference::importFromEPSG().

OGRErr OSRImportFromEPSGA | ( | OGRSpatialReferenceH | hSRS,
|  | int | nCode
| ) |  |

Initialize SRS based on EPSG GCS or PCS code.

This function is the same as OGRSpatialReference::importFromEPSGA().

OGRErr OSRImportFromERM | ( | OGRSpatialReferenceH | hSRS,
|  | const char * | pszProj,
|  | const char * | pszDatum,
|  | const char * | pszUnits
| ) |  |

Create OGR WKT from ERMapper projection definitions.

This function is the same as OGRSpatialReference::importFromERM().

OGRErr OSRImportFromESRI | ( | OGRSpatialReferenceH | hSRS,
|  | char ** | papszPrj
| ) |  |

Import coordinate system from ESRI .prj format(s).

This function is the same as the C++ method OGRSpatialReference::importFromESRI().

OGRErr OSRImportFromMICoordSys | ( | OGRSpatialReferenceH | hSRS,
|  | const char * | pszCoordSys
| ) |  |

Import Mapinfo style CoordSys definition.

This method is the equivalent of the C++ method OGRSpatialReference::importFromMICoordSys

OGRErr OSRImportFromOzi | ( | OGRSpatialReferenceH | hSRS,
|  | const char *const * | papszLines
| ) |  |

Import coordinate system from OziExplorer projection definition.

This function will import projection definition in style, used by OziExplorer software.

Note: another version of this function with a different signature existed in GDAL 1.X.

Parameters

  hSRS | spatial reference object.
  papszLines | Map file lines. This is an array of strings containing the whole OziExplorer .MAP file. The array is terminated by a NULL pointer.

Returns
  OGRERR_NONE on success or an error code in case of failure.

Since
  OGR 2.0

OGRErr OSRImportFromPanorama | ( | OGRSpatialReferenceH | hSRS,
|  | long | iProjSys,
|  | long | iDatum,
|  | long | iEllips,
|  | double * | padfPrjParams
| ) |  |

Import coordinate system from "Panorama" GIS projection definition.

See OGRSpatialReference::importFromPanorama()

OGRErr OSRImportFromPCI | ( | OGRSpatialReferenceH | hSRS,
|  | const char * | pszProj,
|  | const char * | pszUnits,
|  | double * | padfPrjParams
| ) |  |

Import coordinate system from PCI projection definition.

This function is the same as OGRSpatialReference::importFromPCI().

OGRErr OSRImportFromProj4 | ( | OGRSpatialReferenceH | hSRS,
|  | const char * | pszProj4
| ) |  |

Import PROJ.4 coordinate string.

This function is the same as OGRSpatialReference::importFromProj4().

OGRErr OSRImportFromUrl | ( | OGRSpatialReferenceH | hSRS,
|  | const char * | pszUrl
| ) |  |

Set spatial reference from a URL.

This function is the same as OGRSpatialReference::importFromUrl()

OGRErr OSRImportFromUSGS | ( | OGRSpatialReferenceH | hSRS,
|  | long | iProjsys,
|  | long | iZone,
|  | double * | padfPrjParams,
|  | long | iDatum
| ) |  |

Import coordinate system from USGS projection definition.

This function is the same as OGRSpatialReference::importFromUSGS().

OGRErr OSRImportFromWkt | ( | OGRSpatialReferenceH | hSRS,
|  | char ** | ppszInput
| ) |  |

Import from WKT string.

Consult also the OGC WKT Coordinate System Issues page for implementation details of WKT in OGR.

This function is the same as OGRSpatialReference::importFromWkt().

OGRErr OSRImportFromXML | ( | OGRSpatialReferenceH | hSRS,
|  | const char * | pszXML
| ) |  |

Import coordinate system from XML format (GML only currently).

This function is the same as OGRSpatialReference::importFromXML().

int OSRIsCompound | ( | OGRSpatialReferenceH | hSRS | ) |

Check if the coordinate system is compound.

This function is the same as OGRSpatialReference::IsCompound().

int OSRIsGeocentric | ( | OGRSpatialReferenceH | hSRS | ) |

Check if geocentric coordinate system.

This function is the same as OGRSpatialReference::IsGeocentric().

Since
  OGR 1.9.0

int OSRIsGeographic | ( | OGRSpatialReferenceH | hSRS | ) |

Check if geographic coordinate system.

This function is the same as OGRSpatialReference::IsGeographic().

int OSRIsLocal | ( | OGRSpatialReferenceH | hSRS | ) |

Check if local coordinate system.

This function is the same as OGRSpatialReference::IsLocal().

int OSRIsProjected | ( | OGRSpatialReferenceH | hSRS | ) |

Check if projected coordinate system.

This function is the same as OGRSpatialReference::IsProjected().

int OSRIsSame | ( | OGRSpatialReferenceH | hSRS1,
|  | OGRSpatialReferenceH | hSRS2
| ) |  |

Do these two spatial references describe the same system ?

This function is the same as OGRSpatialReference::IsSame().

int OSRIsSameGeogCS | ( | OGRSpatialReferenceH | hSRS1,
|  | OGRSpatialReferenceH | hSRS2
| ) |  |

Do the GeogCS'es match?

This function is the same as OGRSpatialReference::IsSameGeogCS().

int OSRIsSameVertCS | ( | OGRSpatialReferenceH | hSRS1,
|  | OGRSpatialReferenceH | hSRS2
| ) |  |

Do the VertCS'es match?

This function is the same as OGRSpatialReference::IsSameVertCS().

int OSRIsVertical | ( | OGRSpatialReferenceH | hSRS | ) |

Check if vertical coordinate system.

This function is the same as OGRSpatialReference::IsVertical().

Since
  OGR 1.8.0

OGRErr OSRMorphFromESRI | ( | OGRSpatialReferenceH | hSRS | ) |

Convert in place from ESRI WKT format.

This function is the same as the C++ method OGRSpatialReference::morphFromESRI().

OGRErr OSRMorphToESRI | ( | OGRSpatialReferenceH | hSRS | ) |

Convert in place to ESRI WKT format.

This function is the same as the C++ method OGRSpatialReference::morphToESRI().

OGRSpatialReferenceH OSRNewSpatialReference | ( | const char * | pszWKT | ) |

Constructor.

This function is the same as OGRSpatialReference::OGRSpatialReference()

int OSRReference | ( | OGRSpatialReferenceH | hSRS | ) |

Increments the reference count by one.

This function is the same as OGRSpatialReference::Reference()

void OSRRelease | ( | OGRSpatialReferenceH | hSRS | ) |

Decrements the reference count by one, and destroy if zero.

This function is the same as OGRSpatialReference::Release()

OGRErr OSRSetAngularUnits | ( | OGRSpatialReferenceH | hSRS,
|  | const char * | pszUnits,
|  | double | dfInRadians
| ) |  |

Set the angular units for the geographic coordinate system.

This function is the same as OGRSpatialReference::SetAngularUnits()

OGRErr OSRSetAttrValue | ( | OGRSpatialReferenceH | hSRS,
|  | const char * | pszPath,
|  | const char * | pszValue
| ) |  |

Set attribute value in spatial reference.

This function is the same as OGRSpatialReference::SetNode()

OGRErr OSRSetAuthority | ( | OGRSpatialReferenceH | hSRS,
|  | const char * | pszTargetKey,
|  | const char * | pszAuthority,
|  | int | nCode
| ) |  |

Set the authority for a node.

This function is the same as OGRSpatialReference::SetAuthority().

OGRErr OSRSetAxes | ( | OGRSpatialReferenceH | hSRS,
|  | const char * | pszTargetKey,
|  | const char * | pszXAxisName,
|  | OGRAxisOrientation | eXAxisOrientation,
|  | const char * | pszYAxisName,
|  | OGRAxisOrientation | eYAxisOrientation
| ) |  |

Set the axes for a coordinate system.

This method is the equivalent of the C++ method OGRSpatialReference::SetAxes

OGRErr OSRSetCompoundCS | ( | OGRSpatialReferenceH | hSRS,
|  | const char * | pszName,
|  | OGRSpatialReferenceH | hHorizSRS,
|  | OGRSpatialReferenceH | hVertSRS
| ) |  |

Setup a compound coordinate system.

This function is the same as OGRSpatialReference::SetCompoundCS()

OGRErr OSRSetFromUserInput | ( | OGRSpatialReferenceH | hSRS,
|  | const char * | pszDef
| ) |  |

Set spatial reference from various text formats.

This function is the same as OGRSpatialReference::SetFromUserInput()

OGRErr OSRSetGeocCS | ( | OGRSpatialReferenceH | hSRS,
|  | const char * | pszName
| ) |  |

Set the user visible PROJCS name.

This function is the same as OGRSpatialReference::SetGeocCS()

Since
  OGR 1.9.0

OGRErr OSRSetGeogCS | ( | OGRSpatialReferenceH | hSRS,
|  | const char * | pszGeogName,
|  | const char * | pszDatumName,
|  | const char * | pszSpheroidName,
|  | double | dfSemiMajor,
|  | double | dfInvFlattening,
|  | const char * | pszPMName,
|  | double | dfPMOffset,
|  | const char * | pszAngularUnits,
|  | double | dfConvertToRadians
| ) |  |

Set geographic coordinate system.

This function is the same as OGRSpatialReference::SetGeogCS()

OGRErr OSRSetHOM | ( | OGRSpatialReferenceH | hSRS,
|  | double | dfCenterLat,
|  | double | dfCenterLong,
|  | double | dfAzimuth,
|  | double | dfRectToSkew,
|  | double | dfScale,
|  | double | dfFalseEasting,
|  | double | dfFalseNorthing
| ) |  |

Hotine Oblique Mercator using azimuth angle.

Hotine Oblique Mercator using azimuth angle.

This is the same as the C++ method OGRSpatialReference::SetHOM()

OGRErr OSRSetHOM2PNO | ( | OGRSpatialReferenceH | hSRS,
|  | double | dfCenterLat,
|  | double | dfLat1,
|  | double | dfLong1,
|  | double | dfLat2,
|  | double | dfLong2,
|  | double | dfScale,
|  | double | dfFalseEasting,
|  | double | dfFalseNorthing
| ) |  |

Hotine Oblique Mercator using two points on centerline.

Hotine Oblique Mercator using two points on centerline.

This is the same as the C++ method OGRSpatialReference::SetHOM2PNO()

OGRErr OSRSetHOMAC | ( | OGRSpatialReferenceH | hSRS,
|  | double | dfCenterLat,
|  | double | dfCenterLong,
|  | double | dfAzimuth,
|  | double | dfRectToSkew,
|  | double | dfScale,
|  | double | dfFalseEasting,
|  | double | dfFalseNorthing
| ) |  |

Set an Oblique Mercator projection using azimuth angle.

This is the same as the C++ method OGRSpatialReference::SetHOMAC()

OGRErr OSRSetLinearUnits | ( | OGRSpatialReferenceH | hSRS,
|  | const char * | pszUnits,
|  | double | dfInMeters
| ) |  |

Set the linear units for the projection.

This function is the same as OGRSpatialReference::SetLinearUnits()

OGRErr OSRSetLinearUnitsAndUpdateParameters | ( | OGRSpatialReferenceH | hSRS,
|  | const char * | pszUnits,
|  | double | dfInMeters
| ) |  |

Set the linear units for the projection.

This function is the same as OGRSpatialReference::SetLinearUnitsAndUpdateParameters()

OGRErr OSRSetLocalCS | ( | OGRSpatialReferenceH | hSRS,
|  | const char * | pszName
| ) |  |

Set the user visible LOCAL_CS name.

This function is the same as OGRSpatialReference::SetLocalCS()

OGRErr OSRSetNormProjParm | ( | OGRSpatialReferenceH | hSRS,
|  | const char * | pszParmName,
|  | double | dfValue
| ) |  |

Set a projection parameter with a normalized value.

This function is the same as OGRSpatialReference::SetNormProjParm()

OGRErr OSRSetProjCS | ( | OGRSpatialReferenceH | hSRS,
|  | const char * | pszName
| ) |  |

Set the user visible PROJCS name.

This function is the same as OGRSpatialReference::SetProjCS()

OGRErr OSRSetProjection | ( | OGRSpatialReferenceH | hSRS,
|  | const char * | pszProjection
| ) |  |

Set a projection name.

This function is the same as OGRSpatialReference::SetProjection()

OGRErr OSRSetProjParm | ( | OGRSpatialReferenceH | hSRS,
|  | const char * | pszParmName,
|  | double | dfValue
| ) |  |

Set a projection parameter value.

This function is the same as OGRSpatialReference::SetProjParm()

OGRErr OSRSetStatePlane | ( | OGRSpatialReferenceH | hSRS,
|  | int | nZone,
|  | int | bNAD83
| ) |  |

Set State Plane projection definition.

This function is the same as OGRSpatialReference::SetStatePlane().

OGRErr OSRSetStatePlaneWithUnits | ( | OGRSpatialReferenceH | hSRS,
|  | int | nZone,
|  | int | bNAD83,
|  | const char * | pszOverrideUnitName,
|  | double | dfOverrideUnit
| ) |  |

Set State Plane projection definition.

This function is the same as OGRSpatialReference::SetStatePlane().

OGRErr OSRSetTargetLinearUnits | ( | OGRSpatialReferenceH | hSRS,
|  | const char * | pszTargetKey,
|  | const char * | pszUnits,
|  | double | dfInMeters
| ) |  |

Set the linear units for the target node.

This function is the same as OGRSpatialReference::SetTargetLinearUnits()

Since
  OGR 1.9.0

OGRErr OSRSetTM | ( | OGRSpatialReferenceH | hSRS,
|  | double | dfCenterLat,
|  | double | dfCenterLong,
|  | double | dfScale,
|  | double | dfFalseEasting,
|  | double | dfFalseNorthing
| ) |  |

Transverse Mercator.

Special processing available for Transverse Mercator with GDAL >= 1.10 and PROJ >= 4.8 : see OGRSpatialReference::exportToProj4().

OGRErr OSRSetTOWGS84 | ( | OGRSpatialReferenceH | hSRS,
|  | double | dfDX,
|  | double | dfDY,
|  | double | dfDZ,
|  | double | dfEX,
|  | double | dfEY,
|  | double | dfEZ,
|  | double | dfPPM
| ) |  |

Set the Bursa-Wolf conversion to WGS84.

This function is the same as OGRSpatialReference::SetTOWGS84().

OGRErr OSRSetUTM | ( | OGRSpatialReferenceH | hSRS,
|  | int | nZone,
|  | int | bNorth
| ) |  |

Set UTM projection definition.

This is the same as the C++ method OGRSpatialReference::SetUTM()

OGRErr OSRSetVertCS | ( | OGRSpatialReferenceH | hSRS,
|  | const char * | pszVertCSName,
|  | const char * | pszVertDatumName,
|  | int | nVertDatumType
| ) |  |

Setup the vertical coordinate system.

This function is the same as OGRSpatialReference::SetVertCS()

Since
  OGR 1.9.0

OGRErr OSRSetWellKnownGeogCS | ( | OGRSpatialReferenceH | hSRS,
|  | const char * | pszName
| ) |  |

Set a GeogCS based on well known name.

This function is the same as OGRSpatialReference::SetWellKnownGeogCS()

OGRErr OSRStripCTParms | ( | OGRSpatialReferenceH | hSRS | ) |

Strip OGC CT Parameters.

This function is the same as OGRSpatialReference::StripCTParms().

OGRErr OSRValidate | ( | OGRSpatialReferenceH | hSRS | ) |

Validate SRS tokens.

This function is the same as the C++ method OGRSpatialReference::Validate().

Generated for GDAL by 1.8.8.