docs/api/sql/Raster-Operators/RS_SetGeoReference.md

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# RS_SetGeoReference

Introduction: Sets the Georeference information of an object in a single call. Accepts inputs in `GDAL` and `ESRI` format.
Default format is `GDAL`. If all 6 parameters are not provided then will return null.

For more information about ScaleX, ScaleY, SkewX, SkewY, please refer to the [Affine Transformations](../Raster-affine-transformation.md) section.

Format:

```
RS_SetGeoReference(raster: Raster, geoRefCoord: String, format: String = "GDAL")
```

```
RS_SetGeoReference(raster: Raster, upperLeftX: Double, upperLeftY: Double, scaleX: Double, scaleY: Double, skewX: Double, skewY: Double)
```

Return type: `Raster`

Since: `v1.5.0`

Difference between format representation is as follows:

`GDAL`

```
ScaleX SkewY SkewX ScaleY UpperLeftX UpperLeftY
```

`ESRI`

```
ScaleX SkewY SkewX ScaleY (UpperLeftX + ScaleX * 0.5) (UpperLeftY + ScaleY * 0.5)
```

SQL Example

```sql
SELECT RS_GeoReference(
        RS_SetGeoReference(
            RS_MakeEmptyRaster(1, 20, 20, 2, 22, 2, 3, 1, 1, 0),
            '3 1.5 1.5 2 22 3'
        )
    )
```

Output:

```
3.000000
1.500000
1.500000
2.000000
22.000000
3.000000
```

SQL Example

```sql
SELECT RS_GeoReference(
        RS_SetGeoReference(
            RS_MakeEmptyRaster(1, 20, 20, 2, 22, 2, 3, 1, 1, 0),
            '3 1.5 1.5 2 22 3', 'ESRI'
        )
    )
```

Output:

```
3.000000
1.500000
1.500000
2.000000
20.500000
2.000000
```

SQL Example

```sql
SELECT RS_GeoReference(
        RS_SetGeoReference(
            RS_MakeEmptyRaster(2, 5, 5, 0, 0, 1, -1, 0, 0, 0),
            8, -3, 4, 5, 0.2, 0.2
        )
    )
```

Output:

```
4.000000
0.200000
0.200000
5.000000
8.000000
-3.000000
```