Routines (alphabetical) > Routines: H > HDF-EOS Routines > EOS_PT_EXTRACTREGION

# EOS_PT_EXTRACTREGION

This function reads data from the designated level fields into the data buffer from the subsetted area of interest.

## Examples

In this example, we read data within the subsetted area of interest defined by EOS_PT_DEFBOXREGION from the Longitude and Latitude fields:

regionID = EOS_PT_DEFBOXREGION(pointID, [-145.,-135.], [-15.,-8.])

IF (regionID NE -1) THEN BEGIN

status = EOS_PT_EXTRACTREGION(pointID, regionID, 0, $

"Longitude,Latitude", buffer)

HDF_UNPACKDATA, buffer, dataLong,dataLat,HDF_TYPE=[6,6]

ENDIF

## Syntax

Result = EOS_PT_EXTRACTREGION( pointID, regionID, level, fieldlist, buffer)

## Return Value

Returns SUCCEED (0) if successful and FAIL (–1) otherwise.

## Arguments

### pointID

Point id (long).

### regionID

Period id (long) returned by EOS_PT_DEFBOXREGION.

### level

Point level (0-based long).

### fieldlist

List of fields (string) to extract.

### buffer

A named variable that will contain the data buffer.

## Keywords

None

## Version History

5.2 | Introduced