Classes | Macros | Functions
ogr_spatialref.h File Reference

Coordinate systems services. More...

#include "ogr_srs_api.h"

Go to the source code of this file.


class  OGR_SRSNode
 Objects of this class are used to represent value nodes in the parsed representation of the WKT SRS format. More...
class  OGRSpatialReference
 This class represents an OpenGIS Spatial Reference System, and contains methods for converting between this object organization and well known text (WKT) format. More...
class  OGRCoordinateTransformation
 Interface for transforming between coordinate systems. More...


 Angle is in decimal degrees. More...
 Angle is in packed degree minute second. More...
 Angle is in radians. More...


OGRCoordinateTransformationOGRCreateCoordinateTransformation (OGRSpatialReference *poSource, OGRSpatialReference *poTarget)
 Create transformation object. More...

Detailed Description

Coordinate systems services.

Macro Definition Documentation


Angle is in decimal degrees.


Angle is in packed degree minute second.


Angle is in radians.

Function Documentation

OGRCoordinateTransformation* OGRCreateCoordinateTransformation ( OGRSpatialReference poSource,
OGRSpatialReference poTarget 

Create transformation object.

This is the same as the C function OCTNewCoordinateTransformation().

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

The delete operator, or OCTDestroyCoordinateTransformation() should be used to destroy transformation objects.

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

poSourcesource spatial reference system.
poTargettarget spatial reference system.
NULL on failure or a ready to use transformation object.

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