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matlab.io.hdfeos.gd.defBoxRegion

Namespace: matlab.io.hdfeos.gd

Define region of interest by latitude and longitude

Syntax

regionID = defBoxRegion(gridID,cornerLat,cornerLon)

Description

regionID = defBoxRegion(gridID,cornerLat,cornerLon) defines a latitude-longitude box region as a subset region for a grid. regionID can be used to read all the entries of a data field within the region.

This function corresponds to the GDdefboxregion function in the HDF-EOS library C API.

Examples

Define a region of interest between 20 and 50 degrees latitude and between -90 and -60 degrees longitude.

import matlab.io.hdfeos.*
gfid = gd.open('grid.hdf','read');
gridID = gd.attach(gfid,'PolarGrid');
cornerlat = [20 50];
cornerlon = [-90 -60];
regionID = gd.defBoxRegion(gridID,cornerlat,cornerlon);
data = gd.extractRegion(gridID,regionID,'ice_temp');
gd.detach(gridID);
gd.close(gfid);

See Also