ST_GeoReference
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## Name

ST_GeoReference — Returns the georeference meta data in GDAL or ESRI format as commonly seen in a world file. Default is GDAL.

## Synopsis

`text ST_GeoReference(`raster rast, text format=GDAL`)`;

## Description

Returns the georeference meta data including carriage return in GDAL or ESRI format as commonly seen in a world file. Default is GDAL if no type specified. type is string 'GDAL' or 'ESRI'.

Difference between format representations is as follows:

`GDAL`:

    scalex
    skewy
    skewx
    scaley
    upperleftx
    upperlefty

`ESRI`:

    scalex
    skewy
    skewx
    scaley
    upperleftx + scalex*0.5
    upperlefty + scaley*0.5

## Examples

    SELECT ST_GeoReference(rast, 'ESRI') As esri_ref, ST_GeoReference(rast, 'GDAL') As gdal_ref
     FROM dummy_rast WHERE rid=1;

       esri_ref   |   gdal_ref
    --------------+--------------
     2.0000000000 | 2.0000000000
     0.0000000000 : 0.0000000000
     0.0000000000 : 0.0000000000
     3.0000000000 : 3.0000000000
     1.5000000000 : 0.5000000000
     2.0000000000 : 0.5000000000

## See Also

ST_SetGeoReference, ST_ScaleX, ST_ScaleY

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