matlab.io.hdfeos.sw.writeField

Namespace: matlab.io.hdfeos.sw

Write data to swath field

Syntax

writeField(swathID,fieldname,data)
writeField(swathID,fieldname,start,data)
writeField(swathID,fieldname,start,stride,data)

Description

writeField(swathID,fieldname,data) writes an entire swath data field.

writeField(swathID,fieldname,start,data) writes a contiguous hyperslab to a swath field. start specifies the index of the first element to write. The number of elements along each dimension is inferred from either the size of data or from the swath field itself.

writeField(swathID,fieldname,start,stride,data) writes a strided hyperslab to a swath field. stride specifies the inter-element spacing along each dimension.

This function corresponds to the SWwritefield function in the HDF-EOS library C API, but because MATLAB® uses FORTRAN-style ordering, the start and stride parameters are reversed with respect to the C library API.

Examples

Write data to a geolocation field 'Longitude'.

lon = [-50:49];
data = repmat(lon(:),1,100);
data = single(data);
import matlab.io.hdfeos.*
srcFile = fullfile(matlabroot,"toolbox","matlab","matlab_sci","hdf4","swath.hdf");
copyfile(srcFile,"myfile.hdf")
fileattrib("myfile.hdf","+w")
swfid = sw.open("myfile.hdf","rdwr");
swathID = sw.attach(swfid,"Example Swath");
sw.writeField(swathID,"Longitude",data)
sw.detach(swathID)
sw.close(swfid)

See Also