matlab.io.hdfeos.gd.nEntries

Namespace: matlab.io.hdfeos.gd

Number of specified objects

Syntax

nentries = nEntries(gridID,entType)

Description

nentries = nEntries(gridID,entType) returns the number of specified objects in a grid. entType can be either 'dims' or 'fields'.

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

Examples

import matlab.io.hdfeos.*
fid = gd.open('grid.hdf');
gridID = gd.attach(fid,'PolarGrid');
ndims = gd.nEntries(gridID,'dims');
nflds = gd.nEntries(gridID,'fields');
gd.detach(gridID);
gd.close(fid);
fprintf('The number of dimensions is %d.\n', ndims);
fprintf('The number of fields is %d.\n', nflds);

See Also