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# ogr_spatialref.h File Reference

`#include "ogr_srs_api.h"`

Go to the source code of this file.

## Classes
class | OGR_SRSNode
class | OGRSpatialReference
class | OGRCoordinateTransformation
## Functions
OGRCoordinateTransformation * | OGRCreateCoordinateTransformation (OGRSpatialReference *poSource, OGRSpatialReference *poTarget)

## Detailed Description

Coordinate systems services.

## 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.

Parameters:

  | poSource | source spatial reference system.
  | poTarget | target spatial reference system.

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

Generated for GDAL by 1.5.1.