# setltln

(Removed) Convert data grid rows and columns to latitude-longitude

**The setltln function has been removed. Use the intrinsicToGeographic function instead. For more information, see Version History.**

## Syntax

`[lat, lon] = setltln(Z, R, row, col)`

[lat, lon, indxPointOutsideGrid] = setltln(Z, R, row,
col)

latlon = setltln(Z, R, row, col)

## Description

`[lat, lon] = setltln(Z, R, row, col)`

returns the latitude and
longitudes associated with the input row and column coordinates of the regular data grid
`Z`

. `R`

can be a geographic raster reference object, a
referencing vector, or a referencing matrix.

If `R`

is a geographic raster reference object, its
`RasterSize`

property must be consistent with
`size(Z)`

.

If `R`

is a referencing vector, it must be 1-by-3 with elements:

[cells/degree northern_latitude_limit western_longitude_limit]

`R`

is a referencing matrix, it must be 3-by-2 and transform raster row and
column indices to/from geographic coordinates according to:
[lon lat] = [row col 1] * R

`R`

is a
referencing matrix, it must define a (non-rotational, non-skewed) relationship in which each
column of the data grid falls along a meridian and each row falls along a parallel. Points
falling outside the grid are ignored in `row`

and `col`

. All
input angles are in degrees.```
[lat, lon, indxPointOutsideGrid] = setltln(Z, R, row,
col)
```

returns the indices of the elements of the `row`

and
`col`

vectors that lie outside the input grid. The outputs
`lat`

and `lon`

always ignore these points; the third
output accounts for them.

`latlon = setltln(Z, R, row, col)`

returns the coordinates in a single
two-column matrix of the form `[latitude longitude]`

.

## Examples

Load elevation raster data and a geographic cells reference object. Then, find the coordinates of row 45 and column 65.

```
load topo60c
[lat,lon,indxPointOutsideGrid] = setltln(topo60c,topo60cR,45,65)
```

lat = -45.5000 lon = 64.5000 indxPointOutsideGrid = []

The third output argument is empty because the point is valid.

## Version History

**Introduced before R2006a**